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Gillies EJ, Li ML, Christensen V, Hoover C, Sora KJ, Loseto LL, Cheung WWL, Angot H, Giang A. Exploring Drivers of Historic Mercury Trends in Beluga Whales Using an Ecosystem Modeling Approach. ACS ENVIRONMENTAL AU 2024; 4:219-235. [PMID: 39309976 PMCID: PMC11413906 DOI: 10.1021/acsenvironau.3c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 09/25/2024]
Abstract
While mercury occurs naturally in the environment, human activity has significantly disturbed its biogeochemical cycle. Inorganic mercury entering aquatic systems can be transformed into methylmercury, a strong neurotoxicant that builds up in organisms and affects ecosystem and public health. In the Arctic, top predators such as beluga whales, an ecologically and culturally significant species for many Inuit communities, can contain high concentrations of methylmercury. Historical mercury concentrations in beluga in the western Canadian Arctic's Beaufort Sea cannot be explained by mercury emission trends alone; in addition, they could potentially be driven by climate change impacts, such as rising temperatures and sea ice melt. These changes can affect mercury bioaccumulation through different pathways, including ecological and mercury transport processes. In this study, we explore key drivers of mercury bioaccumulation in the Beaufort Sea beluga population using Ecopath with Ecosim, an ecosystem modeling approach, and scenarios of environmental change informed by Western Science and Inuvialuit Knowledge. Comparing the effect of historical sea ice cover, sea surface temperature, and freshwater discharge time series, modeling suggests that the timing of historical increases and decreases in beluga methylmercury concentrations can be better explained by the resulting changes to ecosystem productivity rather than by those to mercury inputs and that all three environmental drivers could partially explain the decrease in mercury concentrations in beluga after the mid-1990s. This work highlights the value of multiple knowledge systems and exploratory modeling methods in understanding environmental change and contaminant cycling. Future work building on this research could inform climate change adaptation efforts and inform management decisions in the region.
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Affiliation(s)
- Emma J. Gillies
- Institute
for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Mi-Ling Li
- School
of Marine Science and Policy, University
of Delaware, Newark, Delaware 19716, United States
| | - Villy Christensen
- Institute
for the Oceans and Fisheries, University
of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Carie Hoover
- Marine
Affairs Program, Dalhousie University, Halifax, NS B3H 4R2, Canada
- Freshwater
Institute, Fisheries and Oceans Canada, Winnipeg, MB R3T
2N6, Canada
| | - Kristen J. Sora
- Institute
for the Oceans and Fisheries, University
of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Lisa L. Loseto
- Freshwater
Institute, Fisheries and Oceans Canada, Winnipeg, MB R3T
2N6, Canada
- Centre
for Earth Observation Science, Department of Environment and Geography, University of Manitoba, Winnipeg, MB R3T
2N2, Canada
| | - William W. L. Cheung
- Institute
for the Oceans and Fisheries, University
of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Hélène Angot
- Univ. Grenoble
Alpes, CNRS, INRAE, IRD, Grenoble INP, IGE, Grenoble 38400, France
| | - Amanda Giang
- Institute
for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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Cuccaro A, De Marchi L, Pirone A, Monni G, Meucci V, Lazzarini G, Fumagalli G, Oliva M, Miragliotta V, Freitas R, Pretti C. Interplay of UV-filter pollution and temperature rise scenarios on Mytilus galloprovincialis health: Unveiling sperm quality and adult physiology, biochemistry, and histology insights. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 362:124930. [PMID: 39260551 DOI: 10.1016/j.envpol.2024.124930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 08/07/2024] [Accepted: 09/07/2024] [Indexed: 09/13/2024]
Abstract
Addressing the impacts of emerging contaminants within the context of climate change is crucial for understanding ecosystem health decline. Among these, the organic UV-filters 4-methylbenzylidenecamphor (4-MBC) and benzophenone-3 (BP-3) are widely used in cosmetics and personal care products. Their unique physico-chemical properties, along with their growing commercialization and consumption, have made them ubiquitous in aquatic environments through both direct and indirect releases, raising significant concerns about their potential threats to inhabiting biota. Additionally, increasing surface water temperatures exacerbate ecological risks, making it imperative to understand the implications for non-target species at different biological levels. This study investigated the short- and long-term effects of UV-filters 4-MBC or BP-3, at ecologically relevant concentrations, combined with current and predicted warming scenarios, on the performance and male reproductive health of Mytilus galloprovincialis mussel populations. Using biomarkers across sub-cellular, cellular, tissue, and individual levels, the study revealed significant physiological and biochemical impairments in both sperm cells and adults exposed to UV-filters. Temperature emerged as the primary driver influencing mussel responses and modulating the impacts of 4-MBC/BP-3, emphasizing their sensitivity to temperatures outside the optimal range and interactive effects between stressors. Specifically, sperm motility declined with increasing UV-filter concentrations, while temperature alone influenced ROS production, leading to compromised mitochondrial activity and DNA damage in the presence of combined stressors, indicative of potential reproductive impairments. Adults exhibited high UV-filter bioconcentration potential in whole tissues, compromised physiological status, morphophysiological changes in digestive glands, oxidative stress, and alterations in metabolic capacity, antioxidant defences, and biotransformation mechanisms, correlating with UV-filter exposure and temperature increase. Among the UV-filters tested, 4-MBC was the most detrimental, especially when combined with warming. Overall, this study underscores the vulnerability of M. galloprovincialis to cumulative stressors and highlights the importance of employing a multi-biomarker approach to assess and mitigate the impacts of stressors on coastal ecosystems.
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Affiliation(s)
- Alessia Cuccaro
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Lucia De Marchi
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Andrea Pirone
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Gianfranca Monni
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Valentina Meucci
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Giulia Lazzarini
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Giorgia Fumagalli
- Interuniversity Consortium of Marine Biology and Applied Ecology, "G. Bacci", 57128, Livorno, Italy
| | - Matteo Oliva
- Interuniversity Consortium of Marine Biology and Applied Ecology, "G. Bacci", 57128, Livorno, Italy
| | - Vincenzo Miragliotta
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy
| | - Rosa Freitas
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, 56122, San Piero a Grado, PI, Italy; Interuniversity Consortium of Marine Biology and Applied Ecology, "G. Bacci", 57128, Livorno, Italy.
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3
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Kaur R, Gupta S, Tripathi V, Bharadwaj A. Unravelling the secrets of soil microbiome and climate change for sustainable agroecosystems. Folia Microbiol (Praha) 2024:10.1007/s12223-024-01194-9. [PMID: 39249146 DOI: 10.1007/s12223-024-01194-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 08/20/2024] [Indexed: 09/10/2024]
Abstract
The soil microbiota exhibits an important function in the ecosystem, and its response to climate change is of paramount importance for sustainable agroecosystems. The macronutrients, micronutrients, and additional constituents vital for the growth of plants are cycled biogeochemically under the regulation of the soil microbiome. Identifying and forecasting the effect of climate change on soil microbiomes and ecosystem services is the need of the hour to address one of the biggest global challenges of the present time. The impact of climate change on the structure and function of the soil microbiota is a major concern, explained by one or more sustainability factors around resilience, reluctance, and rework. However, the past research has revealed that microbial interventions have the potential to regenerate soils and improve crop resilience to climate change factors. The methods used therein include using soil microbes' innate capacity for carbon sequestration, rhizomediation, bio-fertilization, enzyme-mediated breakdown, phyto-stimulation, biocontrol of plant pathogens, antibiosis, inducing the antioxidative defense pathways, induced systemic resistance response (ISR), and releasing volatile organic compounds (VOCs) in the host plant. Microbial phytohormones have a major role in altering root shape in response to exposure to drought, salt, severe temperatures, and heavy metal toxicity and also have an impact on the metabolism of endogenous growth regulators in plant tissue. However, shelf life due to the short lifespan and storage time of microbial formulations is still a major challenge, and efforts should be made to evaluate their effectiveness in crop growth based on climate change. This review focuses on the influence of climate change on soil physico-chemical status, climate change adaptation by the soil microbiome, and its future implications.
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Affiliation(s)
- Rasanpreet Kaur
- Department of Biotechnology, IAH, GLA University, Mathura, India
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Saurabh Gupta
- Department of Biotechnology, IAH, GLA University, Mathura, India.
| | - Vishal Tripathi
- Department of Biotechnology, Graphic Era (Deemed to Be University), Dehradun, 248002, Uttarakhand, India.
| | - Alok Bharadwaj
- Department of Biotechnology, IAH, GLA University, Mathura, India
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Xie D, Wei H, Huang Y, Qian J, Zhang Y, Wang M. Elevated temperature as a dominant driver to aggravate cadmium toxicity: Investigations through toxicokinetics and omics. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134789. [PMID: 38843636 DOI: 10.1016/j.jhazmat.2024.134789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/16/2024] [Accepted: 05/31/2024] [Indexed: 06/26/2024]
Abstract
Despite the great interest in the consequences of global change stressors on marine organisms, their interactive effects on cadmium (Cd) bioaccumulation/biotoxicity are very poorly explored, particularly in combination with the toxicokinetic model and molecular mechanism. According to the projections for 2100, this study investigated the impact of elevated pCO2 and increased temperature (isolated or joint) on Cd uptake dynamics and transcriptomic response in the marine copepod Tigriopus japonicus. Toxicokinetic results showed significantly higher Cd uptake in copepods under increased temperature and its combination with elevated pCO2 relative to the ambient condition, linking to enhanced Cd bioaccumulation. Transcriptome analysis revealed that, under increased temperature and its combination with elevated pCO2, up-regulated expression of Cd uptake-related genes but down-regulation of Cd exclusion-related genes might cause increased cellular Cd level, which not only activated detoxification and stress response but also induced oxidative stress and concomitant apoptosis, demonstrating aggravated Cd biotoxicity. However, these were less pronouncedly affected by elevated pCO2 exposure. Therefore, temperature seems to be a primary factor in increasing Cd accumulation and its toxicity in the future ocean. Our findings suggest that we should refocus the interactive effects between climate change stressors and Cd pollution, especially considering temperature as a dominant driver.
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Affiliation(s)
- Dongmei Xie
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Hui Wei
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Yuehan Huang
- School of International Education, Beijing University of Chemical Technology, Beijing 102200, China
| | - Jing Qian
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Yunlei Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Minghua Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
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5
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Zhang C, Li L, Alava JJ, Yan Z, Chen P, Gul Y, Wang L, Xiong D. Female zebrafish (Danio rerio) exposure to polystyrene nanoplastics induces reproductive toxicity in mother and their offspring. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 273:107023. [PMID: 39059103 DOI: 10.1016/j.aquatox.2024.107023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/13/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024]
Abstract
Nanoplastics (NPs) have been commonly detected in aquatic ecosystems, and their negative effects on aquatic organisms have raised concerns in the scientific community and general public. The acute toxicity, neurotoxicity, and metabolic toxicity induced by NPs on fishes have been reported by many studies, although less attention has been focused on how mother exposed to NPs affected their offspring in aquatic organisms. Here, female zebrafish (F0) were exposed to 0, 200 and 2000 μg/L polystyrene nanoplastics (PS-NPs) for 42 d, with their offspring (F1) reared in clear water until sexual maturity. The results showed that PS-NPs were detected in various organs of F0 and F1. PS-NPs exposure significantly decreased gonadal 17-estradiol (E2), while increasing testosterone (T) contents. Lower levels of cyp19a1a, lhr and erα expressions in the 2000 μg/L group were consistent with a reduced number of mature oocytes (MO), but an increase in perinucleolar oocytes (PO). Interestingly, the expression of vtg was only up-regulated by 200 μg/L PS-NPs. After exposure, the egg production was dramatically reduced, but the hatching rate and heartbeat of F1 embryos from treated females were significantly higher than those observed in females from the control group. Maternal PS-NPs exposure significantly decreased the E2 and T levels in F1 adults, while PS-NPs exposure significantly up-regulated the sox9a but down-regulated the foxl2a in F1 larvae of 30 days post fertilization (dpf). This study showed that PS-NPs caused reproductive toxicity by changing the hypothalamic-pituitary-gonadal (HPG) axis-related genes, impairing the reproductive capacity of female zebrafish, affecting the development and disrupting the endocrine function of F1. These results suggested that PS-NPs had adverse effects on fish reproductive system both in the directly exposed generation and in their unexposed offspring.
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Affiliation(s)
- Chunyun Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Luoxin Li
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
| | - Juan Jose Alava
- Ocean Pollution Research Unit, Institute for the Oceans and Fisheries University of British Columbia, AERL 2202 Main Mall, Vancouver, BC V6T 1Z4, Canada
| | - Zebang Yan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peng Chen
- Xinjiang Uygur Autonomous Region Fisheries Research Institute, Urumqi, Xinjiang 830000, China
| | - Yasmeen Gul
- Department of Zoology, Government College Women University, Faisalabad 38860, Pakistan
| | - Lixin Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Dongmei Xiong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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6
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Alkorta I, Garbisu C. Expanding the focus of the One Health concept: links between the Earth-system processes of the planetary boundaries framework and antibiotic resistance. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 0:reveh-2024-0013. [PMID: 38815132 DOI: 10.1515/reveh-2024-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/26/2024] [Indexed: 06/01/2024]
Abstract
The scientific community warns that our impact on planet Earth is so acute that we are crossing several of the planetary boundaries that demarcate the safe operating space for humankind. Besides, there is mounting evidence of serious effects on people's health derived from the ongoing environmental degradation. Regarding human health, the spread of antibiotic resistant bacteria is one of the most critical public health issues worldwide. Relevantly, antibiotic resistance has been claimed to be the quintessential One Health issue. The One Health concept links human, animal, and environmental health, but it is frequently only focused on the risk of zoonotic pathogens to public health or, to a lesser extent, the impact of contaminants on human health, i.e., adverse effects on human health coming from the other two One Health "compartments". It is recurrently claimed that antibiotic resistance must be approached from a One Health perspective, but such statement often only refers to the connection between the use of antibiotics in veterinary practice and the antibiotic resistance crisis, or the impact of contaminants (antibiotics, heavy metals, disinfectants, etc.) on antibiotic resistance. Nonetheless, the nine Earth-system processes considered in the planetary boundaries framework can be directly or indirectly linked to antibiotic resistance. Here, some of the main links between those processes and the dissemination of antibiotic resistance are described. The ultimate goal is to expand the focus of the One Health concept by pointing out the links between critical Earth-system processes and the One Health quintessential issue, i.e., antibiotic resistance.
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Affiliation(s)
- Itziar Alkorta
- Department of Biochemistry and Molecular Biology, 16402 University of the Basque Country (UPV/EHU) , Bilbao, Spain
| | - Carlos Garbisu
- NEIKER - Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain
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Parvez SM, Jahan F, Abedin J, Rahman M, Hasan SS, Islam N, Aich N, Moniruzzaman M, Islam Z, Fujimura M, Raqib R, Knibbs LD, Sly PD. Blood lead, cadmium and hair mercury concentrations and association with soil, dust and occupational factors in e-waste recycling workers in Bangladesh. Int J Hyg Environ Health 2024; 257:114340. [PMID: 38422602 DOI: 10.1016/j.ijheh.2024.114340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Electronic waste (e-waste) recycling activities release toxic metals, which pose substantial hazard to the environment and human health. We evaluated metal concentrations in biological and environmental samples, and examined the associations between biological lead (Pb), cadmium (Cd), and mercury (Hg) with soil and dust metals, and other possible determinants, among populations exposed and non-exposed to e-waste in Bangladesh. METHODS A total of 199 e-waste workers and 104 non-exposed individuals were recruited. We measured blood Pb (BPb) and Cd (BCd) concentrations and total Hg (THg) from hair samples. Data were collected on occupational, and behavioral factors. We fitted an elastic net regression (ENET) to model the relationship between a set of influencing factors and metals as outcome variables while controlling for potential covariates. RESULTS The median concentrations of BPb (11.89 μg/dL) and BCd (1.04 μg/L) among exposed workers were higher than those of non-exposed workers (BPb: 3.63 μg/dL and BCd: 0.83 μg/L respectively). A 100 ppm increment in soil Pb level was associated with an increase in ln-Pb (transformed) in blood (β = 0.002; 95% CI = 0.00, 0.02). Similarly, ln-BCd level increased (β = 0.02; 95% CI = 0.001, 0.07) with every ppm increase in dust Cd level. The number of years worked in e-waste activities was associated with elevated ln-BPb (β = 0.01; 95% CI = 0.01, 0.02) and ln-BCd levels (β = 0.003; 95% CI = 0.00, 0.05). Smoking significantly contributed to elevated levels of ln-BCd (β = 0.46; 95% CI = 0.43, 0.73). An increment of 100 kg of e-waste handling per week led to an increase in ln-BPb levels (β = 0.002; 95% CI = 0.00, 0.01), while respondents knowledge about adverse impact on e-waste reduced the ln-BPb level (β = -0.14; 95% CI = -0.31, -0.03). Fish consumption frequency had a positive association with THg in hair. CONCLUSIONS Our data show the need for workplace controls to reduce exposure to Pb and Cd with a broader view of exposure source taken.
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Affiliation(s)
- Sarker Masud Parvez
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia; Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh.
| | - Farjana Jahan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Jaynal Abedin
- School of Mathematical and Statistical Sciences, University of Galway, H91 TK33, Galway, Ireland; Center for Data Research and Analytics, Bethesda, MD 20817, USA
| | - Mahbubur Rahman
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Shaikh Sharif Hasan
- Environmental Health and WASH, Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Nafisa Islam
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
| | - Nirupam Aich
- Department of Civil and Environmental Engineering, University of Nebraska - Lincoln, Lincoln, NE 68588, USA
| | | | - Zahir Islam
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
| | - Masatake Fujimura
- Department of Basic Medical Sciences, National Institute for Minamata Disease, Minamata, Kumamoto 867-0008, Japan
| | - Rubhana Raqib
- Nutrition Research Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka 1212, Bangladesh
| | - Luke D Knibbs
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2050, Australia; Public Health Research Analytics and Methods for Evidence, Public Health Unit, Sydney Local Health District, Camperdown, NSW 2050, Australia
| | - Peter D Sly
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
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Wei H, Xie D, Wang DZ, Wang M. A Meta-analysis Reveals Global Change Stressors Potentially Aggravate Mercury Toxicity in Marine Biota. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:219-230. [PMID: 38152998 DOI: 10.1021/acs.est.3c07294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Growing evidence demonstrates that global change can modulate mercury (Hg) toxicity in marine organisms; however, the consensus on such effect is lacking. Here, we conducted a meta-analysis to evaluate the effects of global change stressors on Hg biotoxicity according to the IPCC projections (RCP 8.5) for 2100, including ocean acidification (-0.4 units), warming (+4 °C), and their combination (acidification-warming). The results indicated an overall aggravating effect (ln RRΔ = -0.219) of global change on Hg toxicity in marine organisms, while the effect varied with different stressors; namely, acidification potentially alleviates Hg biotoxicity (ln RRΔ = 0.117) while warming and acidification-warming have an aggravating effect (ln RRΔ = -0.328 and -0.097, respectively). Moreover, warming increases Hg toxicity in different trophic levels, i.e., primary producers (ln RRΔ = -0.198) < herbivores (ln RRΔ = -0.320) < carnivores (ln RRΔ = -0.379), implying increasing trends of Hg biomagnification through the food web. Notably, ocean hypoxia appears to boost Hg biotoxicity, although it was not considered in our meta-analysis because of the small sample size. Given the persistent global change and combined effects of these stressors in marine environments, multigeneration and multistressor research is urgently needed to fully disclose the impacts of global change on Hg pollution and its risk.
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Affiliation(s)
- Hui Wei
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Dongmei Xie
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Da-Zhi Wang
- State Key Laboratory of Marine Environmental Science/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Minghua Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
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9
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Kim MS, Lee YH, Lee Y, Byeon E, Kim DH, Wang M, Hagiwara A, Aranda M, Wu RSS, Park HG, Lee JS. Transgenerational adaptation to ocean acidification determines the susceptibility of filter-feeding rotifers to nanoplastics. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132593. [PMID: 37776776 DOI: 10.1016/j.jhazmat.2023.132593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 10/02/2023]
Abstract
The adaptation of marine organisms to the impending challenges presented by ocean acidification (OA) is essential for their future survival, and mechanisms underlying OA adaptation have been reported in several marine organisms. In the natural environment, however, marine organisms are often exposed to a combination of environmental stressors, and the interactions between adaptive responses have yet to be elucidated. Here, we investigated the susceptibility of filter-feeding rotifers to short-term (ST) and long-term (LT) (≥180 generations) high CO2 conditions coupled with nanoplastic (NPs) exposure (ST+ and LT+). Adaptation of rotifers to elevated CO2 caused differences in ingestion and accumulation of NPs, resulting in a significantly different mode of action on in vivo endpoints between the ST+ and LT+ groups. Moreover, microRNA-mediated epigenetic regulation was strongly correlated with the varied adaptive responses between the ST+ and LT+ groups, revealing novel regulatory targets and pathways. Our results indicate that pre-exposure history to increased CO2 levels is an important factor in the susceptibility of rotifers to NPs.
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Affiliation(s)
- Min-Sub Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Young Hwan Lee
- Department of Marine Ecology and Environment, College of Life Sciences, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Yoseop Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Eunjin Byeon
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Duck-Hyun Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea
| | - Minghua Wang
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies/College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Atsushi Hagiwara
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Manuel Aranda
- Marine Science Program, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Rudolf Shiu Sun Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong Special Administrative region of China; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region of China
| | - Heum Gi Park
- Department of Marine Ecology and Environment, College of Life Sciences, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, South Korea.
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10
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Williams RS, Brownlow A, Baillie A, Barber JL, Barnett J, Davison NJ, Deaville R, ten Doeschate M, Murphy S, Penrose R, Perkins M, Spiro S, Williams R, Jepson PD, Curnick DJ, Jobling S. Spatiotemporal Trends Spanning Three Decades Show Toxic Levels of Chemical Contaminants in Marine Mammals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20736-20749. [PMID: 38011905 PMCID: PMC10720377 DOI: 10.1021/acs.est.3c01881] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 09/21/2023] [Accepted: 10/03/2023] [Indexed: 11/29/2023]
Abstract
Despite their ban and restriction under the 2001 Stockholm Convention, persistent organic pollutants (POPs) are still widespread and pervasive in the environment. Releases of these toxic and bioaccumulative chemicals are ongoing, and their contribution to population declines of marine mammals is of global concern. To safeguard their survival, it is of paramount importance to understand the effectiveness of mitigation measures. Using one of the world's largest marine mammals strandings data sets, we combine published and unpublished data to examine pollutant concentrations in 11 species that stranded along the coast of Great Britain to quantify spatiotemporal trends over three decades and identify species and regions where pollutants pose the greatest threat. We find that although levels of pollutants have decreased overall, there is significant spatial and taxonomic heterogeneity such that pollutants remain a threat to biodiversity in several species and regions. Of individuals sampled within the most recent five years (2014-2018), 48% of individuals exhibited a concentration known to exceed toxic thresholds. Notably, pollutant concentrations are highest in long-lived, apex odontocetes (e.g., killer whales (Orcinus orca), bottlenose dolphins (Tursiops truncatus), and white-beaked dolphins (Lagenorhynchus albirostris)) and were significantly higher in animals that stranded on more industrialized coastlines. At the present concentrations, POPs are likely to be significantly impacting marine mammal health. We conclude that more effective international elimination and mitigation strategies are urgently needed to address this critical issue for the global ocean health.
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Affiliation(s)
- Rosie S. Williams
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
- Department
of Genetics, Evolution and Environment, University College London, Darwin Building, 99-105 Gower Street, London WC1E 6BT, United
Kingdom
| | - Andrew Brownlow
- School
of Biodiversity One Health and Veterinary Medicine, College of Medical,
Veterinary & Life Sciences, University
of Glasgow, Glasgow G12 8QQ, United
Kingdom
| | - Andrew Baillie
- The
Natural
History Museum, Cromwell Road, London SW7 5BD, United Kingdom
| | - Jonathan L. Barber
- Centre
for Environment, Fisheries and Aquaculture
Science (Cefas), Pakefield Road, Lowestoft NR33 0HT, United Kingdom
| | - James Barnett
- Environment
and Sustainability Institute, University
of Exeter, Penryn Campus, Falmouth, Cornwall TR10 9FE, United Kingdom
| | - Nicholas J. Davison
- School
of Biodiversity One Health and Veterinary Medicine, College of Medical,
Veterinary & Life Sciences, University
of Glasgow, Glasgow G12 8QQ, United
Kingdom
| | - Robert Deaville
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
| | - Mariel ten Doeschate
- School
of Biodiversity One Health and Veterinary Medicine, College of Medical,
Veterinary & Life Sciences, University
of Glasgow, Glasgow G12 8QQ, United
Kingdom
| | - Sinéad Murphy
- Marine
and Freshwater Research Centre, Department of Natural Science, School
of Science and Computing, Galway-Mayo Institute
of Technology, Galway H91 T8NW, Ireland
| | - Rod Penrose
- Marine
Environmental Monitoring, Penwalk, Llechryd, Cardigan, Ceredigion SA43 2PS, United
Kingdom
| | - Matthew Perkins
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
| | - Simon Spiro
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
| | - Ruth Williams
- Cornwall
Wildlife Trust, Truro, Cornwall TR4 9DJ, United Kingdom
| | - Paul D. Jepson
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
| | - David J. Curnick
- Institute
of Zoology, Zoological Society of London, Regent’s Park, London NW1 4RY, United Kingdom
| | - Susan Jobling
- Department
of Life Sciences, Institute of Health, Medicine and Environments, Brunel University London, Uxbridge UB8 3PH, United Kingdom
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11
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Zhang Y, Xie D, Lin Q, Zhou X. Seawater warming intensifies nickel toxicity to a marine copepod: a multigenerational perspective. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106730. [PMID: 37862730 DOI: 10.1016/j.aquatox.2023.106730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
Due to human activities, marine organisms are frequently co-stressed with nickel (Ni) pollution and seawater warming; nevertheless, very scarce information is known about their interaction in marine biota under a multigenerational scenario. Here, after verifying the interaction of Ni and warming via a 48-h acute test, we conducted a multigenerational experiment (F0-F2), in which the marine copepod Tigriopus japonicus was exposed to Ni at environmentally realistic concentrations (0, 2, and 20 µg/L) under ambient (22℃) and predicted seawater warming (26℃) conditions. Ni accumulation and the important life history traits were analyzed for each generation. Results showed that Ni exposure caused Ni bioaccumulation and thus compromised the survivorship and egg production of T. japonicus. In particular, seawater warming significantly increased Ni accumulation, thus intensifying the negative effects of Ni on its survivorship and development. Overall, this study suggests that Ni multigenerational exposure even at environmentally realistic concentrations could produce a significant impact on marine copepod's health, and this impact would be intensified under the projected seawater warming, providing a mechanistic understanding of the interaction between warming and Ni pollution in marine organisms from a multigenerational perspective.
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Affiliation(s)
- Yunlei Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Dongmei Xie
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China
| | - Qingxian Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
| | - Xiaoping Zhou
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems /College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
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12
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Chen S, Xin J, Ding Z, Zhao L, Ben S, Zheng R, Li S, Li H, Shao W, Cheng Y, Zhang Z, Du M, Wang M. Construction, evaluation, and AOP framework-based application of the EpPRS as a genetic surrogate for assessing environmental pollutants. ENVIRONMENT INTERNATIONAL 2023; 180:108202. [PMID: 37734146 DOI: 10.1016/j.envint.2023.108202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Environmental pollutant measurement is essential for accurate health risk assessment. However, the detection of humans' internal exposure to pollutants is cost-intensive and consumes time and energy. Polygenic risk scores (PRSs) have been widely applied in genetic studies of complex trait diseases. It is important to construct a genetically relevant environmental surrogate for pollutant exposure and to explore its utility for disease prediction and risk assessment. OBJECTIVES This study enrolled 714 individuals with complete genomic data and exposomic data on 22 plasma-persistent organic pollutants (POPs). METHODS We first conducted 22 POP genome-wide association studies (GWAS) and constructed the corresponding environmental pollutant-based PRS (EpPRS) by clumping and P value thresholding (C + T), lassosum, and PRS-CS methods. The best-fit EpPRS was chosen by its regression R2. An adverse outcome pathway (AOP) framework was developed to assess the effects of contaminants on candidate diseases. Furthermore, Mendelian randomization (MR) analysis was performed to explore the causal association between POPs and cancer risk. RESULTS The C + T method produced the best-performing EpPRSs for 7 PCBs and 4 PBDEs. EpPRSs replicated the correlations of environmental exposure measurements based on consistent patterns. The diagnostic performance of type 2 diabetes mellitus (T2DM) PRS was improved by the combined model of T2DM-EpPRS of PCB126/BDE153. Finally, the AKT1-mediated AOP framework illustrated that PCB126 and BDE153 may increase the risk of T2DM by decreasing AKT1 phosphorylation through the cGMP-PKG pathway and promoting abnormal glucose homeostasis. MR analysis showed that digestive system tumors, such as colorectal cancer and biliary tract cancer, are more sensitive to POP exposure. CONCLUSIONS EpPRSs can serve as a proxy for assessing pollutant internal exposure. The application of the EpPRS to disease risk assessment can reveal the toxic pathway and mode of action linking exposure and disease in detail, providing a basis for the development of environmental pollutant control strategies.
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Affiliation(s)
- Silu Chen
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Junyi Xin
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
| | - Zhutao Ding
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lingyan Zhao
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shuai Ben
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rui Zheng
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shuwei Li
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Huiqin Li
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Wei Shao
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yifei Cheng
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Mulong Du
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China; The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China.
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13
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Szteren D, Aurioles-Gamboa D, Campos-Villegas LE, Alava JJ. Metal-specific biomagnification and trophic dilution in the coastal foodweb of the California sea lion (Zalophus californianus) off Bahía Magdalena, Mexico: The role of the benthic-pelagic foodweb in the trophic transfer of trace and toxic metals. MARINE POLLUTION BULLETIN 2023; 194:115263. [PMID: 37515868 DOI: 10.1016/j.marpolbul.2023.115263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/31/2023]
Abstract
Trace metals concentrations along with stable isotopes ratios were measured in marine algae, sea grass, sponges, echinoderms, mollusks, crustaceans, fishes, and the California sea lion, to assess the bioaccumulation potential and detect potential risks for top predators off Bahia Magdalena, Mexico. We assessed the trophic magnification factor (TMF) to determine the potential for biomagnification of 11 trace metals. The concentrations of Fe and Zn were one order of magnitude higher than all other metals. Concentrations of As, Cu, Cd, Co, Cr, Fe, Mn and Ni correlated negatively with trophic level, supporting trophic dilution (TMF < 1, p > 0.05), while Zn and Hg had significant trophic magnification (TMF > 1, p < 0.05) when assessing only the benthic-pelagic foodweb. This research provides a baseline concentration of metals in multiple species, metal-specific foodweb bioaccumulation and biomagnification of mercury, underscoring the key role of the macrobenthic community as biovectors for trophic transfer of Hg through the foodweb to the California sea lion.
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Affiliation(s)
- Diana Szteren
- Laboratorio de Zoología Vertebrados, Departamento de Ecología y Evolución, Facultad de Ciencias, Iguá 4225, Montevideo 11400, Uruguay.
| | - David Aurioles-Gamboa
- Laboratorio de Ecología de Pinnípedos "Burney J. Le Boeuf", Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Polo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Lorena Elizabeth Campos-Villegas
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Calle 30 de junio de 1520 s/n, Col. La Laguna Ticomán, C.P. 07340 Alcaldía Gustavo A. Madero, Mexico
| | - Juan José Alava
- Ocean Pollution Research Unit & Nippon Foundation-Ocean Litter Project, Institute for the Oceans and Fisheries, University of British Columbia, AERL 2202 Main Mall, Vancouver, BC V6T 1Z4, Canada; Fundación Ecuatoriana para El Estudio de Mamíferos Marinos (FEMM), Guayaquil, Ecuador
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14
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He Y, Fang H, Pan X, Zhu B, Chen J, Wang J, Zhang R, Chen L, Qi X, Zhang H. Cadmium Exposure in Aquatic Products and Health Risk Classification Assessment in Residents of Zhejiang, China. Foods 2023; 12:3094. [PMID: 37628093 PMCID: PMC10453627 DOI: 10.3390/foods12163094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Cadmium (Cd) pollution of food safety is a prominent food safety concern worldwide. The concentration of Cd in six aquatic food categories collected from 2018 to 2022 was analyzed using inductively coupled plasma mass spectrometry, and the Cd exposure levels were calculated by combining the Cd concentration and food consumption data of 18913 urban and rural residents in Zhejiang Province in 2015-2016. The mean Cd concentration was 0.699 mg/kg and the mean Cd exposure of aquatic foods was 0.00951 mg/kg BW/month for the general population. Marine crustaceans were the largest Cd contributor, corresponding to 82.7%. The regional distribution results showed that the average Cd exposure levels of 11 cities did not exceed the provisional tolerable monthly intake (PTMI). According to the subgroups, the Cd mean exposure level of 2-3-year-old children was significantly higher than that of the other age groups but did not exceed the PTMI. Health risk classification assessment demonstrated that the final risk score was six, and the health risk level of Cd exposure in aquatic products in the Zhejiang population was medium. These results demonstrated that the risk of Cd exposure in certain food types or age groups should be given more concern.
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Affiliation(s)
- Yue He
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Hangyan Fang
- Hangzhou Linping District Center for Disease Control and Prevention, Hangzhou 311100, China;
| | - Xiaodong Pan
- Department of Physical-Chemistry, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China;
| | - Bing Zhu
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Jiang Chen
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Jikai Wang
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Ronghua Zhang
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Lili Chen
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Xiaojuan Qi
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
| | - Hexiang Zhang
- Department of Nutrition and Food Safety, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (Y.H.); (B.Z.); (J.C.); (J.W.); (R.Z.); (L.C.); (H.Z.)
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15
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Guo Y, Cheng S, Fang H, Yang Y, Li Y, Shi F, Zhou Y. Copper and cadmium co-contamination affects soil bacterial taxonomic and functional attributes in paddy soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121724. [PMID: 37105465 DOI: 10.1016/j.envpol.2023.121724] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/21/2023]
Abstract
Microorganisms inhabiting heavy metal-contaminated soils have evolved specific metabolic capabilities to survive, which has the potential for effective bioremediation. However, the ecological consequence of copper (Cu) and cadmium (Cd) on bacterial taxonomic and functional attributes of rice field remains unclear. Here, we selected paddy soils along a polluted river in southern China to evaluate the role of Cu and Cd contaminant fractions in regulating bacterial co-occurrence patterns. We also assessed the effects of these heavy metal fractions on the relative abundance of functional genes using shotgun metagenomic analysis. Soil Cu and Cd concentrations in paddy soils gradually decreased from upstream to downstream of the river, and had a greater impact on bacterial communities and metabolic potentials than soil general properties. Soil Cu and Cd contamination led to drastic changes in the cumulative relative abundance of ecological modules in bacterial co-occurrence networks. Bacteria associated with AD3, HSB_OF53-F07 (both belonging to Chloroflexi), Rokubacteriales, and Nitrospira were identified as tolerant to Cu and Cd contamination. The Cu and Cd contaminant fractions were positively correlated with the genes involved in metal resistance, carbon (C) fixation, nitrification, and denitrification, but negatively correlated with the genes related to nitrogen (N) fixation. These results indicated that soil Cu and Cd pollution not only enriched metal resistant genes, but also affected genes related to microbial C and N cycling. This is critical for facilitating microbiome bioremediation of metal-contaminated paddy soils.
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Affiliation(s)
- Yifan Guo
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shulan Cheng
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Huajun Fang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; The Zhongke-Ji'an Institute for Eco-Environmental Sciences, Ji'an, 343000, China; Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, 810001, China.
| | - Yan Yang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuna Li
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fangying Shi
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yi Zhou
- University of Chinese Academy of Sciences, Beijing, 100049, China
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16
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Grunst AS, Grunst ML, Fort J. Contaminant-by-environment interactive effects on animal behavior in the context of global change: Evidence from avian behavioral ecotoxicology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 879:163169. [PMID: 37003321 DOI: 10.1016/j.scitotenv.2023.163169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 03/01/2023] [Accepted: 03/26/2023] [Indexed: 05/17/2023]
Abstract
The potential for chemical contaminant exposure to interact with other stressors to affect animal behavioral responses to environmental variability is of mounting concern in the context of anthropogenic environmental change. We systematically reviewed the avian literature to evaluate evidence for contaminant-by-environment interactive effects on animal behavior, as birds are prominent models in behavioral ecotoxicology and global change research. We found that only 17 of 156 (10.9 %) avian behavioral ecotoxicological studies have explored contaminant-by-environment interactions. However, 13 (76.5 %) have found evidence for interactive effects, suggesting that contaminant-by-environment interactive effects on behavior are understudied but important. We draw on our review to develop a conceptual framework to understand such interactive effects from a behavioral reaction norm perspective. Our framework highlights four patterns in reaction norm shapes that can underlie contaminant-by-environment interactive effects on behavior, termed exacerbation, inhibition, mitigation and convergence. First, contamination can render individuals unable to maintain critical behaviors across gradients in additional stressors, exacerbating behavioral change (reaction norms steeper) and generating synergy. Second, contamination can inhibit behavioral adjustment to other stressors, antagonizing behavioral plasticity (reaction norms shallower). Third, a second stressor can mitigate (antagonize) toxicological effects of contamination, causing steeper reaction norms in highly contaminated individuals, with improvement of performance upon exposure to additional stress. Fourth, contamination can limit behavioral plasticity in response to permissive conditions, such that performance of more and less contaminated individuals converges under more stressful conditions. Diverse mechanisms might underlie such shape differences in reaction norms, including combined effects of contaminants and other stressors on endocrinology, energy balance, sensory systems, and physiological and cognitive limits. To encourage more research, we outline how the types of contaminant-by-environment interactive effects proposed in our framework might operate across multiple behavioral domains. We conclude by leveraging our review and framework to suggest priorities for future research.
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Affiliation(s)
- Andrea S Grunst
- Littoral, Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 Rue Olympe de Gouges, FR-17000 La Rochelle, France.
| | - Melissa L Grunst
- Littoral, Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 Rue Olympe de Gouges, FR-17000 La Rochelle, France
| | - Jérôme Fort
- Littoral, Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 Rue Olympe de Gouges, FR-17000 La Rochelle, France
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17
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Tovar LR, Sus B, Azevedo A, Lailson-Brito J, Bisi TL. Mercury toxicology in Epinephelidae fishes: A multiple tissue approach in two groupers species from southwestern Atlantic (SE-Brazil). MARINE POLLUTION BULLETIN 2023; 191:114967. [PMID: 37121186 DOI: 10.1016/j.marpolbul.2023.114967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 04/13/2023] [Accepted: 04/16/2023] [Indexed: 05/13/2023]
Abstract
Epinephelidae fishes are important to reef ecosystems, as well as for commercial fishing and cultural heritage. Additionally, most of these species are at some risk of extinction, as Epinephelus marginatus and Hyporthodus nigritus. This study aimed to determine total mercury (THg) concentrations and burden on eight tissues of E. marginatus and H. nigritus. A Cold Vapor/Atomic Absorption Spectrometer was used for the THg determination. THg concentrations and burden varied significantly between tissues in both species. The highest concentrations were determined in the liver, and the greatest burden was in muscle. The gonad concentrations were higher than the toxicological threshold. General trends of increase in THg concentrations and burden along growth were observed. Mercury is a threat for both species evaluated, raising this concern for other Epinephelidae species.
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Affiliation(s)
- Lucas Rodrigues Tovar
- Laboratório de Mamíferos Aquáticos e Bioindicadores, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro 20550-013, Brazil.
| | - Bruna Sus
- Laboratório de Mamíferos Aquáticos e Bioindicadores, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro 20550-013, Brazil
| | - Alexandre Azevedo
- Laboratório de Mamíferos Aquáticos e Bioindicadores, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro 20550-013, Brazil
| | - José Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro 20550-013, Brazil
| | - Tatiana Lemos Bisi
- Laboratório de Mamíferos Aquáticos e Bioindicadores, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro 20550-013, Brazil
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18
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Dias M, Paula JR, Pousão-Ferreira P, Casal S, Cruz R, Cunha SC, Rosa R, Marques A, Anacleto P, Maulvault AL. Combined effects of climate change and BDE-209 dietary exposure on the behavioural response of the white seabream, Diplodus sargus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163400. [PMID: 37054799 DOI: 10.1016/j.scitotenv.2023.163400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/05/2023] [Accepted: 04/05/2023] [Indexed: 04/15/2023]
Abstract
Decabromodiphenyl-ether (BDE-209) is a persistent organic pollutant ubiquitously found in marine environments worldwide. Even though this emerging chemical contaminant is described as highly toxic, bioaccumulative and biomagnifiable, limited studies have addressed the ecotoxicological implications associated with its exposure in non-target marine organisms, particularly from a behavioural standpoint. Alongside, seawater acidification and warming have been intensifying their impacts on marine ecosystems over the years, compromising species welfare and survival. BDE-209 exposure as well as seawater acidification and warming are known to affect fish behaviour, but information regarding their interactive effects is not available. In this study, long-term effects of BDE-209 contamination, seawater acidification and warming were studied on different behavioural traits of Diplodus sargus juveniles. Our results showed that D. sargus exhibited a marked sensitivity in all the behaviour responses after dietary exposure to BDE-209. Fish exposed to BDE-209 alone revealed lower awareness of a risky situation, increased activity, less time spent within the shoal, and reversed lateralization when compared to fish from the Control treatment. However, when acidification and/or warming were added to the equation, behavioural patterns were overall altered. Fish exposed to acidification alone exhibited increased anxiety, being less active, spending more time within the shoal, while presenting a reversed lateralization. Finally, fish exposed to warming alone were more anxious and spent more time within the shoal compared to those of the Control treatment. These novel findings not only confirm the neurotoxicological attributes of brominated flame retardants (like BDE-209), but also highlight the relevance of accounting for the effects of abiotic variables (e.g. pH and seawater temperature) when investigating the impacts of environmental contaminants on marine life.
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Affiliation(s)
- Marta Dias
- UCIBIO - Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, Portugal; MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
| | - José Ricardo Paula
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939 2750-374 Cascais, Portugal; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Pedro Pousão-Ferreira
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal
| | - Susana Casal
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Rebeca Cruz
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Sara C Cunha
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Rui Rosa
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939 2750-374 Cascais, Portugal; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - António Marques
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Patrícia Anacleto
- MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939 2750-374 Cascais, Portugal; IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Ana Luísa Maulvault
- UCIBIO - Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, Caparica, Portugal; MARE - Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939 2750-374 Cascais, Portugal; IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, I.P., Division of Aquaculture, Upgrading and Bioprospection, Av. Doutor Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal
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Trace Elements and Persistent Organic Pollutants in Unhatched Loggerhead Turtle Eggs from an Emerging Nesting Site along the Southwestern Coasts of Italy, Western Mediterranean Sea. Animals (Basel) 2023; 13:ani13061075. [PMID: 36978615 PMCID: PMC10044507 DOI: 10.3390/ani13061075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Marine pollution is one of the major threats affecting loggerhead turtles, which due to their long life span, highly migratory behavior, and carnivorous diet, may be exposed to elevated levels of toxic elements throughout their life. The transfer of chemicals from mothers to their offspring is of particular conservation concern because it may affect embryonic development and hatching success. In this study, the concentrations of 16 toxic and potentially toxic trace elements, 6 indicator polychlorinated biphenyls (PCBs), and organochlorine pesticide residues (OCPs) were determined in 138 eggs from 46 loggerhead turtle nests laid during the 2021 nesting season in Campania, Italy, western Mediterranean Sea. The possible impact of pollutant levels on hatching success and early embryonic death was also investigated. Trace element analysis was performed using an ICP-MS, except for mercury, which was determined using a Direct Mercury Analyzer® (DMA). PCBs and OCPs were analyzed with high-resolution gas chromatography coupled with high-resolution mass spectrometry (HRGC-HRMS) and gas chromatography tandem quadrupole mass spectrometry GC-MS /MS, respectively. The concentrations of essential elements in the eggs were higher than those of non-essential elements. In addition, the highly chlorinated PCBs (153, 138, and 180) contributed the most to the total PCBs, while OCPs were not detected. No correlations were found between contaminant concentrations and reproductive parameters (hatching success and no obvious embryos). The results obtained suggest that the levels of contaminants found in the eggs do not affect the reproductive success of the species in the study area.
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Alcantara LB, Creencia LA, Madarcos JRV, Madarcos KG, Jontila JBS, Culhane F. Climate change awareness and risk perceptions in the coastal marine ecosystem of Palawan, Philippines. UCL OPEN ENVIRONMENT 2023; 5:e054. [PMID: 37229346 PMCID: PMC10208352 DOI: 10.14324/111.444/ucloe.000054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 11/16/2022] [Indexed: 05/27/2023]
Abstract
Understanding coastal communities' awareness and risk perceptions of climate change impact is essential in developing effective risk communication tools and mitigation strategies to reduce the vulnerability of these communities. In this study, we examined coastal communities' climate change awareness and risk perceptions of climate change impact on the coastal marine ecosystem, sea level rise impact on the mangrove ecosystem and as a factor affecting coral reefs and seagrass beds. The data were gathered by conducting face-to-face surveys with 291 respondents from the coastal areas of Taytay, Aborlan and Puerto Princesa in Palawan, Philippines. Results showed that most participants (82%) perceived that climate change is happening and a large majority (75%) perceived it as a risk to the coastal marine ecosystem. Local temperature rise and excessive rainfall were found to be significant predictors of climate change awareness. Sea level rise was perceived by most participants (60%) to cause coastal erosion and to affect the mangrove ecosystem. On coral reefs and seagrass ecosystems, anthropogenic drivers and climate change were perceived to have a high impact, while marine livelihoods had a low impact. In addition, we found that climate change risk perceptions were influenced by direct experiences of extreme weather events (i.e., temperature rise and excessive rainfall) and climate-related livelihood damages (i.e., declining income). Climate change risk perceptions were also found to vary with household income, education, age group and geographical location. The results suggest that addressing poverty and effectively communicating climate change risks can improve climate change awareness and risk perceptions.
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Affiliation(s)
- Lutgardo B. Alcantara
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Philippines
| | - Lota A. Creencia
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Philippines
| | - John Roderick V. Madarcos
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Philippines
| | - Karen G. Madarcos
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Philippines
| | - Jean Beth S. Jontila
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa City, Philippines
| | - Fiona Culhane
- School of Biological and Marine Science, University of Plymouth, Plymouth, UK
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21
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Elvevoll EO, James D, Toppe J, Gamarro EG, Jensen IJ. Food Safety Risks Posed by Heavy Metals and Persistent Organic Pollutants (POPs) related to Consumption of Sea Cucumbers. Foods 2022; 11:3992. [PMID: 36553734 PMCID: PMC9778379 DOI: 10.3390/foods11243992] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/05/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
The global production of sea cucumbers was 245 thousand tons in 2020. Sea cucumbers are important food items in Asian and Pacific cuisines, the highest proportion being consumed in China as "bêche-de-mer" dried, gutted, boiled and salted body wall. However, consumption of sea cucumbers is expanding in China and globally, and the high demand has led to decline in populations of sea cucumbers, due to overexploitation. Aquaculture, together with novel fisheries on new species in new regions is easing the demand. Thus, an assessment of food safety is warranted. A literature search on food hazards was performed. A high proportion of the selected papers concerned heavy metals and metalloid hazards, such as mercury (Hg), cadmium (Cd), lead (Pb), and arsenic (As). No specific maximum limits (MLs) have been set for contents of these in sea cucumbers. Thus, the contents were compared with maximum limits set for aquatic animals in general or bivalve molluscs if available. With regard to Hg and Cd levels, none of the samples exceeded limits set by the European Commission or the National Standard of China, while for Pb, samples from highly industrialised areas exceeded the limits. Surprisingly, data on contaminants such as POPs, including dioxins and dl-PCB, PAH and PFAS as well as microbial hazards were scarce. The availability of fresh sea cucumber has increased due to aquaculture. To preserve the original flavour some consumers are reported to prefer to eat raw sea cucumber products, sashimi and sushi, which inevitably causes challenges from the microbial food safety perspective. Altogether, this paper highlights specific needs for knowledge, in particular when harvesting new species of sea cucumbers or in industrialized regions. Systematic monitoring activities, appropriate guidelines and regulations are highly warranted to guide the utilization of sea cucumbers.
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Affiliation(s)
- Edel Oddny Elvevoll
- Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT-The Arctic University of Norway, N-9037 Tromsoe, Norway
| | - David James
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), 00153 Rome, Italy
| | - Jogeir Toppe
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), 00153 Rome, Italy
| | - Esther Garrido Gamarro
- Fisheries and Aquaculture Division, Food and Agriculture Organization of the United Nations (FAO), 00153 Rome, Italy
| | - Ida-Johanne Jensen
- Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT-The Arctic University of Norway, N-9037 Tromsoe, Norway
- Department of Biotechnology and Food Science, Norwegian University of Science and Technology, NTNU, N-7491 Trondheim, Norway
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22
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Borgå K, McKinney MA, Routti H, Fernie KJ, Giebichenstein J, Hallanger I, Muir DCG. The influence of global climate change on accumulation and toxicity of persistent organic pollutants and chemicals of emerging concern in Arctic food webs. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:1544-1576. [PMID: 35179539 DOI: 10.1039/d1em00469g] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This review summarizes current understanding of how climate change-driven physical and ecological processes influence the levels of persistent organic pollutants (POPs) and contaminants of emerging Arctic concern (CEACs) in Arctic biota and food webs. The review also highlights how climate change may interact with other stressors to impact contaminant toxicity, and the utility of modeling and newer research tools in closing knowledge gaps on climate change-contaminant interactions. Permafrost thaw is influencing the concentrations of POPs in freshwater ecosystems. Physical climate parameters, including climate oscillation indices, precipitation, water salinity, sea ice age, and sea ice quality show statistical associations with POPs concentrations in multiple Arctic biota. Northward range-shifting species can act as biovectors for POPs and CEACs into Arctic marine food webs. Shifts in trophic position can alter POPs concentrations in populations of Arctic species. Reductions in body condition are associated with increases in levels of POPs in some biota. Although collectively understudied, multiple stressors, including contaminants and climate change, may act to cumulatively impact some populations of Arctic biota. Models are useful for predicting the net result of various contrasting climate-driven processes on POP and CEAC exposures; however, for some parameters, especially food web changes, insufficient data exists with which to populate such models. In addition to the impact of global regulations on POP levels in Arctic biota, this review demonstrates that there are various direct and indirect mechanisms by which climate change can influence contaminant exposure, accumulation, and effects; therefore, it is important to attribute POP variations to the actual contributing factors to inform future regulations and policies. To do so, a broad range of habitats, species, and processes must be considered for a thorough understanding and interpretation of the consequences to the distribution, accumulation, and effects of environmental contaminants. Given the complex interactions between climate change, contaminants, and ecosystems, it is important to plan for long-term, integrated pan-Arctic monitoring of key biota and ecosystems, and to collect ancillary data, including information on climate-related parameters, local meteorology, ecology, and physiology, and when possible, behavior, when carrying out research on POPs and CEACs in biota and food webs of the Arctic.
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Affiliation(s)
- Katrine Borgå
- Department of Biosciences, University of Oslo, NO-0316 Oslo, Norway.
| | - Melissa A McKinney
- Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3 V9, Canada.
| | - Heli Routti
- Norwegian Polar Institute, Fram Centre, NO-9296 Tromsø, Norway
| | - Kim J Fernie
- Ecotoxicology & Wildlife Health, Environment and Climate Change Canada, Burlington, ON, L7S 1A1, Canada
| | | | | | - Derek C G Muir
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, ON, L7S 1A1, Canada
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23
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Robinson SA. Climate change and extreme events are changing the biology of Polar Regions. GLOBAL CHANGE BIOLOGY 2022; 28:5861-5864. [PMID: 35821589 DOI: 10.1111/gcb.16309] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Polar landscapes and their unique biodiversity are threatened by climate change. Wild reindeer are cultural and ecological keystone species, traversing across the northern Eurasian Arctic throughout the year (Wild reindeer in the sub-Arctic in Kuhmo, Finland. Photo: Antti Leinonen, Snowchange Cooperative. Used with permission). In contrast, Antarctic terrestrial biodiversity is found on islands in the ice (or ocean) which support unique assemblages of plants and animals (King George Island, South Shetlands; photo Andrew Netherwood. Used with permission). This VSI examines how the changing climate threatens these diverse marine and terrestrial habitats and the biodiversity that they support.
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Affiliation(s)
- Sharon A Robinson
- Securing Antarctica's Environmental Future, School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, New South Wales, Australia
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24
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Bartalini A, Muñoz-Arnanz J, García-Álvarez N, Fernández A, Jiménez B. Global PBDE contamination in cetaceans. A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119670. [PMID: 35752394 DOI: 10.1016/j.envpol.2022.119670] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/16/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
This review summarizes the most relevant information on PBDEs' occurrence and their impacts in cetaceans at global scale, with special attention on the species with the highest reported levels and therefore the most potentially impacted by the current and continuous release of these substances. This review also emphasizes the anthropogenic and environmental factors that could increase concentrations and associated risks for these species in the next future. High PBDE concentrations above the toxicity threshold and stationary trends have been related to continuous import of PBDE-containing products in cetaceans of Brazil and Australia, where PBDEs have never been produced. Non-decreasing levels documented in cetaceans from the Northwest Pacific Ocean might be linked to the increased e-waste import and ongoing production and use of deca-BDE that is still allowed in China. Moreover, high levels of PBDEs in some endangered species such as beluga whales (Delphinapterus leucas) in St. Lawrence Estuary and Southern Resident killer whales (Orcinus Orca) are influenced by the discharge of contaminated waters deriving from wastewater treatment plants. Climate change related processes such as enhanced long-range transport, re-emissions from secondary sources and shifts in migration habits could lead to greater exposure and accumulation of PBDEs in cetaceans, above all in those species living in the Arctic. In addition, increased rainfall could carry greater amount of contaminants to the marine environment, thereby, enhancing the exposure and accumulation especially for coastal species. Synergic effects of all these factors and ongoing emissions of PBDEs, expected to continue at least until 2050, could increase the degree of exposure and menace for cetacean populations. In this regard, it is necessary to improve current regulations on PBDEs and broader the knowledge about their toxicological effects, in order to assess health risks and support regulatory protection for cetacean species.
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Affiliation(s)
- Alice Bartalini
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain; Unit of Histology and Pathology, Institute of Animal Health (IUSA), Veterinary School, University of Las Palmas, 35413 Arucas, Las Palmas de Gran Canaria, Spain
| | - Juan Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
| | - Natalia García-Álvarez
- Unit of Histology and Pathology, Institute of Animal Health (IUSA), Veterinary School, University of Las Palmas, 35413 Arucas, Las Palmas de Gran Canaria, Spain
| | - Antonio Fernández
- Unit of Histology and Pathology, Institute of Animal Health (IUSA), Veterinary School, University of Las Palmas, 35413 Arucas, Las Palmas de Gran Canaria, Spain
| | - Begoña Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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Cuccaro A, De Marchi L, Oliva M, Monni G, Miragliotta V, Fumagalli G, Freitas R, Pretti C. The influence of salinity on the toxicity of chemical UV-filters to sperms of the free-spawning mussel Mytilus galloprovincialis (Lamark, 1819). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 250:106263. [PMID: 35939883 DOI: 10.1016/j.aquatox.2022.106263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Marine-coastal systems have been increasingly exposed to multiple stressors, including anthropogenic pollution and variations of Climate Change (CC) related factors, whose coexistence could create associated environmental and ecotoxicological risks. Among emergent stressors, 4-methylbenzylidenecamphor (4-MBC) and benzophenone-3 (BP-3) UV-filters are compounds widely used in increasing consumer products, resulting in their ubiquity in aquatic environments and possible pressing challenges on gamete susceptibility. Since most marine invertebrates reproduce by external fertilization, after spawning, gametes may be exposed to several pressures, affecting reproductive success and outcome. The present study focuses on the spermiotoxicity of the environmentally relevant UV-filters 4-MBC and BP-3 combined with salinity shifts, as potential modulators of their harmful effects. For this, Mytilus galloprovincialis male gametes were exposed in vitro to environmentally relevant and slightly higher concentrations (1, 10 and 100 µg/L) of 4-MBC or BP-3 under three different salinities (S 20, 30 and 40). Sperm quality endpoints associated with oxidative status, viability, motility, kinetics, and genotoxicity were evaluated. Similarities and differences in sperm responses among all conditions were highlighted by principal coordinates analysis (PCO). Results showed that salinity acting alone posed greater sperms impairments at the lowest (20) and highest (40) tested levels. When salinity acts as a co-varying stressor, salinity-dominant interactive effects resulted evident, especially for 4-MBC at S 40 and BP-3 at S 20. These findings were pointed out as the worst exposure conditions for M. galloprovincialis sperms, since caused major toxicological effects in terms of: (I) oxidative stress, sperm structural impairments, motility and kinetic alterations in 4-MBC-exposed sperms; (II) DNA damage, compromised mitochondrial activity and hyperactivation in BP-3-exposed ones. Overall, it stands out that salinity influences UV-filter toxicological pathways and, thereby, the potential environmental risk of these contaminants on M. galloprovincialis male gametes, especially in an expected salinity stress scenario.
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Affiliation(s)
- Alessia Cuccaro
- Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro 3810-193, Portugal
| | - Lucia De Marchi
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", Livorno 57128, Italy
| | - Matteo Oliva
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", Livorno 57128, Italy
| | - Gianfranca Monni
- Department of Veterinary Sciences, University of Pisa, Via Livornese Lato Monte, San Piero a Grado, PI 56122, Italy
| | - Vincenzo Miragliotta
- Department of Veterinary Sciences, University of Pisa, Via Livornese Lato Monte, San Piero a Grado, PI 56122, Italy
| | - Giorgia Fumagalli
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", Livorno 57128, Italy
| | - Rosa Freitas
- Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro 3810-193, Portugal
| | - Carlo Pretti
- Interuniversity Consortium of Marine Biology and Applied Ecology "G. Bacci", Livorno 57128, Italy; Department of Veterinary Sciences, University of Pisa, Via Livornese Lato Monte, San Piero a Grado, PI 56122, Italy.
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26
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Simond AÉ, Noël M, Loseto L, Houde M, Kirk J, Elliott A, Brown TM. A Multi-Matrix Metabolomic Approach in Ringed Seals and Beluga Whales to Evaluate Contaminant and Climate-Related Stressors. Metabolites 2022; 12:813. [PMID: 36144217 PMCID: PMC9502077 DOI: 10.3390/metabo12090813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022] Open
Abstract
As a high trophic-level species, ringed seals (Pusa hispida) and beluga whales (Delphinapterus leucas) are particularly vulnerable to elevated concentrations of biomagnifying contaminants, such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and mercury (Hg). These species also face climate-change-related impacts which are leading to alterations in their diet and associated contaminant exposure. The metabolomic profile of marine mammal tissues and how it changes to environmental stressors is poorly understood. This study characterizes the profiles of 235 metabolites across plasma, liver, and inner and outer blubber in adult ringed seals and beluga whales and assesses how these profiles change as a consequence of contaminants and dietary changes. In both species, inner and outer blubber were characterized by a greater proportion of lipid classes, whereas the dominant metabolites in liver and plasma were amino acids, carbohydrates, biogenic amines and lysophosphatidylcholines. Several metabolite profiles in ringed seal plasma correlated with δ13C, while metabolite profiles in blubber were affected by hexabromobenzene in ringed seals and PBDEs and Hg in belugas. This study provides insight into inter-matrix similarities and differences across tissues and suggests that plasma and liver are more suitable for studying changes in diet, whereas liver and blubber are more suitable for studying the impacts of contaminants.
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Affiliation(s)
- Antoine É. Simond
- Pacific Science Enterprise Centre, Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC V7V 1N6, Canada
- School of Resource and Environmental Management, Simon Fraser University, 4160 Marine Drive, West Vancouver, BC V7V 1N6, Canada
| | - Marie Noël
- Ocean Wise, 101-440 Cambie Street, Vancouver, BC V6B 2N5, Canada
| | - Lisa Loseto
- Freshwater Institute, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, MB R3T 2N6, Canada
- Centre for Earth Observation Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Magali Houde
- Centre St-Laurent, Environment and Climate Change Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada
| | - Jane Kirk
- Canada Centre for Inland Waters, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON L7S 1A1, Canada
| | - Ashley Elliott
- Freshwater Institute, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, MB R3T 2N6, Canada
| | - Tanya M. Brown
- Pacific Science Enterprise Centre, Fisheries and Oceans Canada, 4160 Marine Drive, West Vancouver, BC V7V 1N6, Canada
- School of Resource and Environmental Management, Simon Fraser University, 4160 Marine Drive, West Vancouver, BC V7V 1N6, Canada
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27
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Climate Change Implications for Metal and Metalloid Dynamics in Aquatic Ecosystems and its Context within the Decade of Ocean Sciences. WATER 2022. [DOI: 10.3390/w14152415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Anthropogenic activities are affecting marine ecosystems, notably coastal ones, in multiple ways and at increasing rates, leading to habitat degradation, loss of biodiversity, and greater exposure of flora and fauna to chemical contaminants, with serious effects on ocean health. Chemical pollution, in particular, is a significant negative stressor for aquatic ecosystems, both oceanic and coastal, and has recently been identified as a priority for conservation efforts. Metals and metalloids, in particular, present environmental persistence, bioavailability, tendency to bioaccumulate along the trophic chain, and potential toxic effects. However, the current scenario of climate change is increasingly affecting the aquatic environment, altering water mass flows and the transport of pollutants, aggravating toxic effects and ecological risks. Moreover, although traditional sources of contamination have been studied for decades, many knowledge gaps persist, in addition to the emerging effects of climate change that are still poorly studied. In this regard, this review aims to discuss climate change implications for metal and metalloid dynamics in aquatic ecosystems and its context within the Decade of Ocean Sciences. We also discuss how an increasing interest in plastic pollution has led to contamination by metals and metalloids being neglected, requiring mutual efforts to move forward in the understating of the negative and often lethal impacts of this type of pollutants, thus aiming at prioritizing contamination by metals and metalloids not just in the oceans, but in all water bodies.
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Guo Y, Yu RQ, Zhang L, Liang Y, Liu Z, Sun X, Wu Y. Cross-Generational Impacts of Diet Shift on Bisphenol Analogue Loads in Indo-Pacific Humpback Dolphins ( Sousa chinensis). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:10764-10774. [PMID: 35861411 DOI: 10.1021/acs.est.2c02222] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Bisphenol analogues (BPs) are ubiquitous pollutants to marine organisms as endocrine disruptive chemicals. However, the residue contamination and the trophic transfer of BPs in the apex predator nearshore dolphins are poorly studied. Here, we measured the concentrations of six BPs, including bisphenol A (BPA), bisphenol AF (BPAF), bisphenol B (BPB), bisphenol F (BPF), bisphenol P (BPP), and bisphenol S (BPS) in the liver of Indo-Pacific humpback dolphin (Sousa chinensis) (n = 75) collected from the Pearl River Estuary during a period with significant dietary changes (2004-2020). BPA and BPAF were the dominant components of the residue ∑BPs in the liver, with a proportion of 80%. Sex, maturity, and stranding location had no significant effects on BP levels. The generalized additive models indicated that BPA levels in juveniles and adults decreased from 2004 to 2013 while increasing from 2013 to 2020. The temporal trend of BPA levels was likely driven by the shift of the dominant diet from Harpadon nehereus to Thryssa spp. The concurrent increase of BPA loads in calves and juveniles and adults over the recent decades suggested that the diet-mediated variations of maternal BPA levels could be redistributed to their offspring.
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Affiliation(s)
- Yongwei Guo
- School of Marine Sciences, Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Sun Yat-Sen University, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519082, China
| | - Ri-Qing Yu
- Department of Biology, Center for Environment, Biodiversity and Conservation, The University of Texas at Tyler, Tyler, Texas 75799, United States
| | - Li Zhang
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yuqin Liang
- School of Marine Sciences, Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Sun Yat-Sen University, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519082, China
| | - Zhiwei Liu
- School of Ecology, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xian Sun
- School of Marine Sciences, Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Sun Yat-Sen University, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519082, China
| | - Yuping Wu
- School of Marine Sciences, Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Sun Yat-Sen University, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519082, China
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Alava JJ, McMullen K, Jones J, Barragán-Paladines MJ, Hobbs C, Tirapé A, Calle P, Alarcón D, Muñoz-Pérez JP, Muñoz-Abril L, Townsend KA, Denkinger J, Uyaguari M, Domínguez GA, Espinoza E, Reyes H, Piedrahita P, Fair P, Galloway T, Grove JS, Lewis C, Schofield J. Multiple anthropogenic stressors in the Galápagos Islands' complex social-ecological system: Interactions of marine pollution, fishing pressure, and climate change with management recommendations. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022. [PMID: 35893578 DOI: 10.1002/ieam.4661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
For decades, multiple anthropogenic stressors have threatened the Galápagos Islands. Widespread marine pollution such as oil spills, persistent organic pollutants, metals, and ocean plastic pollution has been linked to concerning changes in the ecophysiology and health of Galápagos species. Simultaneously, illegal, unreported, and unregulated fishing are reshaping the composition and structure of endemic and native Galápagos pelagic communities. In this novel review, we discuss the impact of anthropogenic pollutants and their associated ecotoxicological implications for Galápagos species in the face of climate change stressors. We emphasize the importance of considering fishing pressure and marine pollution, in combination with climate-change impacts, when assessing the evolutionary fitness of species inhabiting the Galápagos. For example, the survival of endemic marine iguanas has been negatively affected by organic hydrocarbons introduced via oil spills, and endangered Galápagos sea lions exhibit detectable concentrations of DDT, triggering potential feminization effects and compromising the species' survival. During periods of ocean warming (El Niño events) when endemic species undergo nutritional stress, climate change may increase the vulnerability of these species to the impacts of pollutants, resulting in the species reaching its population tipping point. Marine plastics are emerging as a deleterious and widespread threat to endemic species. The Galápagos is treasured for its historical significance and its unparalleled living laboratory and display of evolutionary processes; however, this unique and iconic paradise will remain in jeopardy until multidisciplinary and comprehensive preventative management plans are put in place to mitigate and eliminate the effects of anthropogenic stressors facing the islands today. We present a critical analysis and synthesis of anthropogenic stressors with some progress from local and international institutional efforts and call to action more precautionary measures along with new management philosophies focused on understanding the processes of change through research to champion the conservation of the Galápagos. Integr Environ Assess Manag 2022;00:1-26. © 2022 SETAC.
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Affiliation(s)
- Juan José Alava
- Ocean Pollution Research Unit, Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
- School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Karly McMullen
- Ocean Pollution Research Unit, Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
| | - Jen Jones
- Galápagos Conservation Trust, London, UK
- College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
| | | | - Catherine Hobbs
- College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
| | - Ana Tirapé
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, ESPOL Polytechnic University, Guayaquil, Ecuador
| | - Paola Calle
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, ESPOL Polytechnic University, Guayaquil, Ecuador
| | - Daniela Alarcón
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC) Av. Alsacio Northia, Isla San Cristóbal, Galápagos, Ecuador
- School of Science, Technology, and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Juan Pablo Muñoz-Pérez
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC) Av. Alsacio Northia, Isla San Cristóbal, Galápagos, Ecuador
- School of Science, Technology, and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Laia Muñoz-Abril
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC) Av. Alsacio Northia, Isla San Cristóbal, Galápagos, Ecuador
- Facultad de Ciencias del Mar, Universidad Estatal Península de Santa Elena (UPSE), Santa Elena, Ecuador
| | - Kathy Ann Townsend
- School of Science, Technology, and Engineering, University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Judith Denkinger
- Universidad San Francisco de Quito (USFQ) & UNC-Chapel Hill Galápagos Science Center (GSC) Av. Alsacio Northia, Isla San Cristóbal, Galápagos, Ecuador
| | - Miguel Uyaguari
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Gustavo A Domínguez
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, ESPOL Polytechnic University, Guayaquil, Ecuador
| | - Eduardo Espinoza
- Direccion del Parque Nacional Galápagos (Galápagos National Park), Ministerio del Ambiente, Puerto Ayora, Santa Cruz, Galápagos, Ecuador
| | - Harry Reyes
- Direccion del Parque Nacional Galápagos (Galápagos National Park), Ministerio del Ambiente, Puerto Ayora, Santa Cruz, Galápagos, Ecuador
| | - Paolo Piedrahita
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, ESPOL Polytechnic University, Guayaquil, Ecuador
| | - Patricia Fair
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Tamara Galloway
- College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
| | - Jack Stein Grove
- Galápagos Education & Research Alliance, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ceri Lewis
- College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
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Ingeman KE, Zhao LZ, Wolf C, Williams DR, Ritger AL, Ripple WJ, Kopecky KL, Dillon EM, DiFiore BP, Curtis JS, Csik SR, Bui A, Stier AC. Glimmers of hope in large carnivore recoveries. Sci Rep 2022; 12:10005. [PMID: 35864129 PMCID: PMC9304400 DOI: 10.1038/s41598-022-13671-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 05/05/2022] [Indexed: 11/09/2022] Open
Abstract
In the face of an accelerating extinction crisis, scientists must draw insights from successful conservation interventions to uncover promising strategies for reversing broader declines. Here, we synthesize cases of recovery from a list of 362 species of large carnivores, ecologically important species that function as terminal consumers in many ecological contexts. Large carnivores represent critical conservation targets that have experienced historical declines as a result of direct exploitation and habitat loss. We examine taxonomic and geographic variation in current extinction risk and recovery indices, identify conservation actions associated with positive outcomes, and reveal anthropogenic threats linked to ongoing declines. We find that fewer than 10% of global large carnivore populations are increasing, and only 12 species (3.3%) have experienced genuine improvement in extinction risk, mostly limited to recoveries among marine mammals. Recovery is associated with species legislation enacted at national and international levels, and with management of direct exploitation. Conversely, ongoing declines are robustly linked to threats that include habitat modification and human conflict. Applying lessons from cases of large carnivore recovery will be crucial for restoring intact ecosystems and maintaining the services they provide to humans.
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Affiliation(s)
- Kurt E Ingeman
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA. .,David H. Smith Conservation Research Program, Society for Conservation Biology, Washington, DC, USA.
| | - Lily Z Zhao
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Christopher Wolf
- Global Trophic Cascades Program, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
| | - David R Williams
- School of Earth and Environment, University of Leeds, Leeds, UK.,Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, USA
| | - Amelia L Ritger
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - William J Ripple
- Global Trophic Cascades Program, Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA
| | - Kai L Kopecky
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Erin M Dillon
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Bartholomew P DiFiore
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Joseph S Curtis
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Samantha R Csik
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - An Bui
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA
| | - Adrian C Stier
- Department of Ecology, Evolution, and Marine Biology, University of California, 2018 Noble Hall, Santa Barbara, CA, 93106, USA.
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Cossa D, Knoery J, Bănaru D, Harmelin-Vivien M, Sonke JE, Hedgecock IM, Bravo AG, Rosati G, Canu D, Horvat M, Sprovieri F, Pirrone N, Heimbürger-Boavida LE. Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3840-3862. [PMID: 35244390 DOI: 10.1021/acs.est.1c03044] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mercury (Hg) and especially its methylated species (MeHg) are toxic chemicals that contaminate humans via the consumption of seafood. The most recent UNEP Global Mercury Assessment stressed that Mediterranean populations have higher Hg levels than people elsewhere in Europe. The present Critical Review updates current knowledge on the sources, biogeochemical cycling, and mass balance of Hg in the Mediterranean and identifies perspectives for future research especially in the context of global change. Concentrations of Hg in the Western Mediterranean average 0.86 ± 0.27 pmol L-1 in the upper water layer and 1.02 ± 0.12 pmol L-1 in intermediate and deep waters. In the Eastern Mediterranean, Hg measurements are in the same range but are too few to determine any consistent oceanographical pattern. The Mediterranean waters have a high methylation capacity, with MeHg representing up to 86% of the total Hg, and constitute a source of MeHg for the adjacent North Atlantic Ocean. The highest MeHg concentrations are associated with low oxygen water masses, suggesting a microbiological control on Hg methylation, consistent with the identification of hgcA-like genes in Mediterranean waters. MeHg concentrations are twice as high in the waters of the Western Basin compared to the ultra-oligotrophic Eastern Basin waters. This difference appears to be transferred through the food webs and the Hg content in predators to be ultimately controlled by MeHg concentrations of the waters of their foraging zones. Many Mediterranean top-predatory fish still exceed European Union regulatory Hg thresholds. This emphasizes the necessity of monitoring the exposure of Mediterranean populations, to formulate adequate mitigation strategies and recommendations, without advising against seafood consumption. This review also points out other insufficiencies of knowledge of Hg cycling in the Mediterranean Sea, including temporal variations in air-sea exchange, hydrothermal and cold seep inputs, point sources, submarine groundwater discharge, and exchanges between margins and the open sea. Future assessment of global change impacts under the Minamata Convention Hg policy requires long-term observations and dedicated high-resolution Earth System Models for the Mediterranean region.
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Affiliation(s)
- Daniel Cossa
- Université Grenoble Alpes, ISTerre, CS 40700, 38058 Grenoble Cedex 9, France
| | - Joël Knoery
- Ifremer, Centre Atlantique de Nantes, BP 44311, 44980 Nantes, France
| | - Daniela Bănaru
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
| | - Mireille Harmelin-Vivien
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
| | - Jeroen E Sonke
- Géosciences Environnement Toulouse, CNRS/Observatoire Midi-Pyrénées (OMP)/Université de Toulouse, 31400 Toulouse, France
| | - Ian M Hedgecock
- Istituto sull'inquinamento atmosferico, CNR-IIA, 87036 Rende, Italy
| | | | - Ginevra Rosati
- Istituto Nazionale di Oceanografia e di Geofisca Sperimentale (OGS), 34010 Trieste, Italy
| | - Donata Canu
- Istituto Nazionale di Oceanografia e di Geofisca Sperimentale (OGS), 34010 Trieste, Italy
| | | | | | - Nicola Pirrone
- Istituto sull'inquinamento atmosferico, CNR-IIA, 87036 Rende, Italy
| | - Lars-Eric Heimbürger-Boavida
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
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Alves LMF, Lemos MFL, Cabral H, Novais SC. Elasmobranchs as bioindicators of pollution in the marine environment. MARINE POLLUTION BULLETIN 2022; 176:113418. [PMID: 35150988 DOI: 10.1016/j.marpolbul.2022.113418] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 01/21/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
Bioindicator species are increasingly valuable in environmental pollution monitoring, and elasmobranch species include many suitable candidates for that role. By measuring contaminants and employing biomarkers of effect in relevant elasmobranch species, scientists may gain important insights about the impacts of pollution in marine ecosystems. This review compiles biomarkers applied in elasmobranchs to assess the effect of pollutants (e.g., metals, persistent organic pollutants, and plastics), and the environmental changes induced by anthropogenic activities (e.g., shifts in marine temperature, pH, and oxygenation). Over 30 biomarkers measured in more than 12 species were examined, including biotransformation biomarkers (e.g., cytochrome P450 1A), oxidative stress-related biomarkers (e.g., superoxide anion, lipid peroxidation, catalase, and vitamins), stress proteins (e.g., heat shock protein 70), reproductive and endocrine biomarkers (e.g., vitellogenin), osmoregulation biomarkers (e.g., trimethylamine N-oxide, Na+/K+-ATPase, and plasma ions), energetic and neurotoxic biomarkers (e.g., lactate dehydrogenase, lactate, and cholinesterases), and histopathological and morphologic biomarkers (e.g., tissue lesions and gross indices).
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Affiliation(s)
- Luís M F Alves
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal.
| | - Marco F L Lemos
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal
| | | | - Sara C Novais
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, Portugal
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Tartu S, Blévin P, Bustamante P, Angelier F, Bech C, Bustnes JO, Chierici M, Fransson A, Gabrielsen GW, Goutte A, Moe B, Sauser C, Sire J, Barbraud C, Chastel O. A U-Turn for Mercury Concentrations over 20 Years: How Do Environmental Conditions Affect Exposure in Arctic Seabirds? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:2443-2454. [PMID: 35112833 DOI: 10.1021/acs.est.1c07633] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mercury (Hg) is highly toxic in its methylated form (MeHg), and global change is likely to modify its bioavailability in the environment. However, it is unclear how top predators will be impacted. We studied blood Hg concentrations of chick-rearing black-legged kittiwakes Rissa tridactyla (2000-2019) in Svalbard (Norway). From 2000 to 2019, Hg concentrations followed a U-shaped trend. The trophic level, inferred from nitrogen stable isotopes, and chlorophyll a (Chl a) concentrations better predicted Hg concentrations, with positive and U-shaped associations, respectively. As strong indicators of primary productivity, Chl a concentrations can influence production of upper trophic levels and, thus, fish community assemblage. In the early 2000s, the high Hg concentrations were likely related to a higher proportion of Arctic prey in kittiwake's diet. The gradual input of Atlantic prey in kittiwake diet could have resulted in a decrease in Hg concentrations until 2013. Then, a new shift in the prey community, added to the shrinking sea ice-associated release of MeHg in the ocean, could explain the increasing trend of Hg observed since 2014. The present monitoring provides critical insights about the exposure of a toxic contaminant in Arctic wildlife, and the reported increase since 2014 raises concern for Arctic seabirds.
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Affiliation(s)
- Sabrina Tartu
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
| | - Pierre Blévin
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
- Fram Centre, Akvaplan-niva AS, Tromsø 9296, Norway
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS, La Rochelle Université, La Rochelle 17000, France
- Institut Universitaire de France (IUF), Paris 75005, France
| | - Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
| | - Claus Bech
- Norwegian University of Science and Technology (NTNU), Trondheim 7491, Norway
| | - Jan Ove Bustnes
- Fram Centre, Norwegian Institute for Nature Research (NINA), Tromsø 9296, Norway
| | - Melissa Chierici
- Fram Centre, Institute of Marine Research (IMR), Tromsø 9296, Norway
| | | | | | - Aurélie Goutte
- EPHE, PSL Research University, UMR 7619 METIS, Paris F-75005, France
| | - Børge Moe
- Norwegian Institute for Nature Research (NINA), Trondheim 7034, Norway
| | - Christophe Sauser
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
| | - Julien Sire
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
| | - Christophe Barbraud
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
| | - Olivier Chastel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS, La Rochelle Université, Villiers-en-Bois 79360, France
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Manhães BMR, Vannuci-Silva M, Brião JA, Guari EB, Botta S, Colosio AC, Ramos HGC, Barbosa LA, Cunha IAG, Azevedo AF, Cunha HA, Bisi TL, Lailson-Brito J. Temporal trends of trace elements bioaccumulation by a vulnerable cetacean (Pontoporia blainvillei) before and after one of the largest mining disasters worldwide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 804:150196. [PMID: 34798738 DOI: 10.1016/j.scitotenv.2021.150196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/24/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
One of the largest environmental disasters worldwide occurred on November 5th, 2015, when the Fundão dam collapsed in Mariana (Minas Gerais State, Southeast Brazil). The tailing mud flooded the Doce River basin and reached the sea in the coast of Espírito Santo State (ES), Southeast Brazil. This coastal region is the habitat of the most isolated population of franciscana dolphins (Pontoporia blainvillei), with the lowest populational census and lowest genetic diversity in Franciscana Management Area Ia (FMA Ia) - 18° 25'S and 21° 17'S. This study aimed to assess the bioaccumulation of trace-elements (As, Cd, Cu, Fe, Hg, Mn, and Zn) in muscle, liver and kidney of franciscana dolphins collected near the Doce River's mouth before (n = 32) and after (n = 19) the tailing mud reached the sea. The Generalized Additive Model (GAM) showed increasing temporal trends of Hg and Zn in muscle and liver after the dam failure, probably related to higher concentrations and bioavailability in the water column and sediments from the Doce River. Declining trends were found for As and Cu muscular and hepatic concentrations and Fe concentrations in kidney due to their lower bioavailability after the disaster, caused by association with tailings mud trapped in the riverbanks and suspended particulate material. Additionally, higher As and Hg concentrations found in the first period of sampling may be due to historical contamination by mining activities. The full extent of the impacts caused by the Fundão dam failure is still unknown. However, due to their rapid increase and remobilization process, toxic effects can be induced in the biota by these elements. Elements' bioaccumulation in this study contributes to the knowledge of franciscana dolphins from FMA Ia. Considering the conservation concern regarding this franciscana population and its scarce knowledge, the impact of this disaster can be alarming for species conservation.
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Affiliation(s)
- B M R Manhães
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil.
| | - M Vannuci-Silva
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - J A Brião
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - E B Guari
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - S Botta
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Brazil
| | - A C Colosio
- Instituto Baleia Jubarte, Caravelas, Bahia, Brazil
| | - H G C Ramos
- Instituto Baleia Jubarte, Caravelas, Bahia, Brazil
| | - L A Barbosa
- Instituto ORCA, Vila Velha, Espírito Santo, Brazil
| | - I A G Cunha
- Instituto ORCA, Vila Velha, Espírito Santo, Brazil
| | - A F Azevedo
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - H A Cunha
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - T L Bisi
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
| | - J Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores "Profª Izabel Gurgel", Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Rio de Janeiro, Brazil
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de Oliveira-Ferreira N, Carvalho RR, Santos-Neto EB, Manhães BMR, Guari EB, Domit C, Secchi ER, Botta S, Cunha HA, Azevedo AF, Bisi TL, Lailson-Brito J. Long-Term Consequences of High Polychlorinated Biphenyl Exposure: Projected Decline of Delphinid Populations in a Hotspot for Chemical Pollution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:15149-15161. [PMID: 34726395 DOI: 10.1021/acs.est.1c03837] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rough-toothed dolphins, Steno bredanensis, are closely associated with coastal waters in the Southwestern Atlantic Ocean, increasing the exposure to multiple stressors, such as chemical pollution. Persistent organic pollutants (POPs) are known to affect the health of cetacean species. To comprehend the potential impacts of POPs on populations' viability, it is necessary to distinguish populations and predict their risk of long-term exposure. Blubbers of rough-toothed dolphins (n = 28) collected along the southeastern (SE) and southern (S) Brazilian coast were screened for polychlorinated biphenyls (PCBs) and pesticides in a gas chromatograph coupled to a mass spectrometer. Based on the contamination profile, a discriminant function analysis separated the rough-toothed dolphins into three ecological populations: two coastal and one offshore. POP concentrations were the highest reported for the species worldwide and highest among the delphinids in Brazilian waters, reaching 647.9 μg g-1 lw for PCBs. The SE population presented 212.9 ± 163.0, S population presented 101.0 ± 96.7, and OCS/S population presented 183.3 ± 85.3 μg g-1 lw (mean ± SD) of PCBs. The potential risk of effects triggered by elevated PCB concentrations was assessed in an individual-based model. A risk of severe decline in population size is projected for the three populations in the next 100 years, especially in SE Brazil, varying between 67 and 99%.
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Affiliation(s)
- Nara de Oliveira-Ferreira
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
- Programa de Pós-Graduação em Ecologia e Evolução (PPGEE), Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Rafael R Carvalho
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Elitieri B Santos-Neto
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Bárbara M R Manhães
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Emi B Guari
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Camila Domit
- Laboratório de Ecologia e Conservação (LEC), Centro de Estudos do Mar (CEM), Universidade Federal do Paraná (UFPR), Avenida Beira Mar s/n, 83255-000 Pontal do Paraná, Paraná, Brasil
| | - Eduardo R Secchi
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália, km 8, 96203-900 Rio Grande, Rio Grande do Sul, Brasil
| | - Silvina Botta
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália, km 8, 96203-900 Rio Grande, Rio Grande do Sul, Brasil
| | - Haydée A Cunha
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Alexandre F Azevedo
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - Tatiana L Bisi
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
| | - José Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, 20550-013 Rio de Janeiro, Brasil
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Bertucci JI, Bellas J. Combined effect of microplastics and global warming factors on early growth and development of the sea urchin (Paracentrotus lividus). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 782:146888. [PMID: 33848869 DOI: 10.1016/j.scitotenv.2021.146888] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/22/2021] [Accepted: 03/28/2021] [Indexed: 06/12/2023]
Abstract
The aim of this work was to estimate the potential risk of the combined effect of global change factors (acidification, temperature increase) and microplastic (MP) pollution on the growth and development of the sea urchin P. lividus. Embryo-larval bioassays were conducted to determine growth and morphology after 48 h of incubation with MP (1000 and 3000 particles/mL); with filtered sea water at pH = 7.6; and with their combinations. A second experiment was conducted to study the effect of pH and MP in combination with a temperature increase of 4 °C compared to control (20 °C). We found that the inhibition of growth in embryos reared at pH = 7.6 was around 75%. Larvae incubated at 3000 MP particles/mL showed a 20% decrease in growth compared to controls. The exposure to MP also induced an increase in the postoral arm separation or rounded vertices. The combined exposure to a pH 7.6 and MP caused a significant decrease of larval growth compared to control, to MP and to pH 7.6 treatments. Morphological alterations were observed in these treatments, including the development of only two arms. Increasing the temperature resulted in an increased growth in control, in pH 7.6 and pH 7.6 + MP3000 treatments, but the relative stomach volume decreased. However, when growth parameters were expressed per Degree-Days the lower growth provoked by the thermal stress was evidenced in all treatments. In this work we demonstrated that MP could aggravate the effect of a decreased pH and that an increase in water temperature generated an additional stress on P. lividus larvae, manifested in a lower growth and an altered development. Therefore, the combined stress caused by ocean warming, ocean acidification, and microplastic pollution, could threaten sea urchin populations leading to a potential impact on coastal ecosystems.
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Affiliation(s)
- J I Bertucci
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía, IEO, Subida a Radio Faro, 50, 36390 Vigo, Pontevedra, Spain.
| | - J Bellas
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía, IEO, Subida a Radio Faro, 50, 36390 Vigo, Pontevedra, Spain
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Lauringson M, Nousiainen I, Kahar S, Burimski O, Gross R, Kaart T, Vasemägi A. Climate change-driven disease in sympatric hosts: Temporal dynamics of parasite burden and proliferative kidney disease in wild brown trout and Atlantic salmon. JOURNAL OF FISH DISEASES 2021; 44:689-699. [PMID: 33428789 DOI: 10.1111/jfd.13330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Global climate change is altering the abundance and spread of various parasites, which has important consequences not only for host-parasite interactions but also for the relationships between different host species. Here, we focus on the myxozoan endoparasite Tetracapsuloides bryosalmonae that causes temperature-dependent proliferative kidney disease (PKD) in salmonids. We characterized the temporal changes in the parasite load and the severity of PKD signs (renal hyperplasia, haematocrit) in two sympatric populations of wild brown trout (Salmo trutta) and Atlantic salmon (Salmo salar). We found that both the parasite load and disease signs vary considerably between individuals, species, rivers and sampling periods. We showed that Atlantic salmon was able to slow down the initial parasite proliferation rate and subsequently tolerate high parasite burden without obvious disease signs. In contrast, the initial parasite proliferation rate was much higher in brown trout, which was followed by the development of severe PKD signs. Thus, the speed of parasite proliferation, rather than the absolute number of the parasites in the host kidney, may play an important role in interspecific variation in PKD susceptibility. To conclude, this study illustrates the usefulness of temporal perspective for understanding host defence mechanisms and climate change-mediated impacts in the wild.
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Affiliation(s)
- Magnus Lauringson
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Ilkka Nousiainen
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Siim Kahar
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Oksana Burimski
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Riho Gross
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Tanel Kaart
- Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
| | - Anti Vasemägi
- Aquaculture, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Tartu, Estonia
- Department of Aquatic Resources, Institute of Freshwater Research, Swedish University of Agricultural Sciences, Drottningholm, Sweden
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Brown CT, Yahn JM, Karasov WH. Warmer temperature increases toxicokinetic elimination of PCBs and PBDEs in Northern leopard frog larvae (Lithobates pipiens). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 234:105806. [PMID: 33819675 DOI: 10.1016/j.aquatox.2021.105806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/03/2021] [Accepted: 03/05/2021] [Indexed: 05/14/2023]
Abstract
We studied the temperature dependence of accumulation and elimination of two polychlorinated biphenyls (PCBs; PCB-70 and PCB-126) and a commercial mixture of congeners of polybrominated diphenyl ethers (PBDEs; DE-71™)) in Northern leopard frog (Lithobates pipiens) tadpoles. We reared tadpoles at 18, 23, or 27 °C for 5.3 or up to 13.6 weeks (longer at cooler temperature where development is slower) on diets containing the toxicants, each at several different toxicant concentrations, and compared tissue concentrations as a function of food concentration and rearing temperature. Following > 1 month of accumulation, tissue concentrations of all three toxicants in exposed tadpoles were linearly related to dietary concentrations as expected for first order kinetics, with no significant effect of rearing temperature.We also raised free-swimming L. pipiens tadpoles for 14 days on foods containing either toxicant at 18 or 27 °C during an accumulation phase, and then during depuration (declining toxicant) phase of 14 days we provided food without toxicants and measured the decline of toxicants in tadpole tissue. All the congeners were eliminated faster at warmer rearing temperature, as expected. Using Arrhenius' equation, we calculated that the apparent activation energy for elimination of both PCB congeners by tadpoles was 1.21 eV (95% confidence interval 0.6-1.8 eV). We discuss how this value was within the range of estimates for metabolic reactions generally (range 0.2 - 1.2 eV), which might include metabolic pathways for biotransformation and elimination of PCBs. Furthermore, we discuss how the lack of an effect of rearing temperature on tadpole near-steady-state tissue residue levels suggests that faster elimination at the warmer temperature was balanced by faster uptake, which is plausible considering the similar temperature sensitivities (i.e., activation energies) of all these processes. Although interactions between toxicants and temperature can be complex and likely toxicant-dependent, it is plausible that patterns observed in tadpoles might apply to other aquatic organisms. Published data on depuration in 11 fish species eliminating 8 other organic toxicants indicated that they also had similar apparent activation energy for elimination (0.82 ± 0.12 eV; 95% confidence interval 0.56 - 1.08 eV), even though none of those studied toxicants were PCBs or PBDEs. Additional research on toxicant-temperature interactions can help improve our ability to predict toxicant bioaccumulation in warming climate scenarios.
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Affiliation(s)
- Cherry T Brown
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Jeremiah M Yahn
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - William H Karasov
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, United States.
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Hao Z, Xu H, Feng Z, Zhang C, Zhou X, Wang Z, Zheng J, Zou X. Spatial distribution, deposition flux, and environmental impact of typical persistent organic pollutants in surficial sediments in the Eastern China Marginal Seas (ECMSs). JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124343. [PMID: 33144015 DOI: 10.1016/j.jhazmat.2020.124343] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 10/14/2020] [Accepted: 10/17/2020] [Indexed: 06/11/2023]
Abstract
High emissions of synthetic compounds are damaging the marine environment and threatening human health. This study represents the first extensive and comprehensive analysis of three typical persistent organic pollutants (POPs), i.e., organochlorine pesticides (n = 228), perfluoroalkyl substances (n = 202), and short-chain chlorinated paraffins (n = 162), using a highly resolved spatial dataset. The results revealed the complex distribution of POPs in the Eastern China Marginal Seas (ECMSs). POPs in the surface sediments of the ECMSs showed spatial heterogeneity, with high levels observed mainly in areas with fine-grained sediments (e.g., the Yellow River and Changjiang River estuaries and the central south Yellow Sea). Strong positive correlations were identified between POP concentration and sediment grain size/components/longitude/latitude in the ECMSs, suggesting that POP distribution was significantly influenced by river input and regional hydrodynamics. The annual deposition fluxes of POPs in the ECMSs were also calculated and high values were recorded in the Yellow River Estuary and East China Sea. Human-induced changes in the catchments could affect the fate of POPs in the ECMSs and other river-dominated marginal seas worldwide. Our findings highlight concerns regarding local aquaculture and provide a basis for government decision-making. We also suggest the need for increased attention to be paid to the effects of marine organic pollution on aquaculture on a global scale.
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Affiliation(s)
- Zhe Hao
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; School of Geographic and Oceanographic Sciences, Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing 210093, China
| | - Hengtao Xu
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China.
| | - Ziyue Feng
- School of Geographic and Oceanographic Sciences, Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China
| | - Chuchu Zhang
- School of Geographic and Oceanographic Sciences, Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China
| | - Xin Zhou
- First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Zhifu Wang
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
| | - Jiaheng Zheng
- First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Xinqing Zou
- School of Geographic and Oceanographic Sciences, Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing 210093, China.
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40
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Piscopo R, Almeida Â, Coppola F, De Marchi L, Esteves VI, Soares AMVM, Pretti C, Morelli A, Chiellini F, Polese G, Freitas R. How temperature can alter the combined effects of carbon nanotubes and caffeine in the clam Ruditapes decussatus? ENVIRONMENTAL RESEARCH 2021; 195:110755. [PMID: 33556353 DOI: 10.1016/j.envres.2021.110755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/07/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Nowadays, multi-walled carbon nanotubes are considered to be emerging contaminants and their impact in ecosystem has drawn special research attention, while other contaminants, such as caffeine, have more coverage in literature. Despite this, the effects of a combination of the two has yet to be evaluated, especially considering predicted temperature rise. In the present study a typical bioindicator species for marine environment, the clam Ruditapes decussatus, and classical tools, such as biomarkers and histopathological indices, were used to shed light on the species' response to these contaminants, under actual and predicted warming scenarios. The results obtained showed that both contaminants have a harmful effect at tissue level, as shown by higher histopathological index, especially in digestive tubules. Temperatures seemed to induce greater biochemical impacts than caffeine (CAF) and -COOH functionalized multi-walled carbon nanotubes (f-MWCNTs) when acting alone, namely in terms of antioxidant defences and energy reserves content, which were exacerbated when both contaminants were acting in combination (MIX treatment). Overall, the present findings highlight the complex response of clams to both pollutants, evidencing the role of temperature on clams' sensitivity, especially to mixture of pollutants.
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Affiliation(s)
- Raffaele Piscopo
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology, University of Naples Federico II, 80126, Italy
| | - Ângela Almeida
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal
| | - Francesca Coppola
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal
| | - Lucia De Marchi
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal; Department of Biology, University of Pisa, 56126, Pisa, Italy
| | - Valdemar I Esteves
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Portugal
| | - Amadeu M V M Soares
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, 56126, Italy
| | - Andrea Morelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56126, Italy
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56126, Italy
| | - Gianluca Polese
- Department of Biology, University of Naples Federico II, 80126, Italy
| | - Rosa Freitas
- Department of Biology, University of Aveiro, 3810-193, Portugal; Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal.
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Svavarsson J, Guls HD, Sham RC, Leung KMY, Halldórsson HP. Pollutants from shipping - new environmental challenges in the subarctic and the Arctic Ocean. MARINE POLLUTION BULLETIN 2021; 164:112004. [PMID: 33540274 DOI: 10.1016/j.marpolbul.2021.112004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/19/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Maritime activities in the subarctic and Arctic Ocean are predicted to substantially increase in the future due to climate change and declining sea ice cover. Inevitably, the consequences will be seen in impacts on marine ecosystems in this region at many different levels, such as increased pollution load due to antifouling biocides, polycyclic aromatic hydrocarbons, metals and pharmaceuticals. Here we discuss the current situation and evaluate the effect of increased shipping on the environmental status of subarctic and Arctic waters, in relation to elevated loads of both legacy and emerging pollutants in the region. It is of high importance to evaluate the current levels of selected pollutants, which will most likely rise in near future. Furthermore, it is important to improve our understanding of the effects of these pollutants on marine organisms at high latitudes, as the pollutants may behave differently in cold environments compared to organisms at lower latitudes, due to dissimilar physiological responses and adaptations of the cold-water organisms. Integrative studies are needed to better understand the impact of pollutants on the marine fauna while monitoring programmes and research should be continued, with an increased capacity for emerging pollutants of concern.
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Affiliation(s)
- Jörundur Svavarsson
- Department of Life and Environmental Sciences, University of Iceland, Sturlugata 7, 102 Reykjavík, Iceland; The University of Iceland's Research Centre in Suðurnes, Garðvegi 1, 245 Suðurnesjabær, Iceland
| | - Hermann Dreki Guls
- The University of Iceland's Research Centre in Suðurnes, Garðvegi 1, 245 Suðurnesjabær, Iceland.
| | - Ronia C Sham
- Department of Science and Environmental Studies, the Education University of Hong Kong, Tai Po, Hong Kong, China
| | - Kenneth M Y Leung
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Hong Kong, China
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Deidda I, Russo R, Bonaventura R, Costa C, Zito F, Lampiasi N. Neurotoxicity in Marine Invertebrates: An Update. BIOLOGY 2021; 10:161. [PMID: 33670451 PMCID: PMC7922589 DOI: 10.3390/biology10020161] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/20/2021] [Accepted: 02/11/2021] [Indexed: 12/13/2022]
Abstract
Invertebrates represent about 95% of existing species, and most of them belong to aquatic ecosystems. Marine invertebrates are found at intermediate levels of the food chain and, therefore, they play a central role in the biodiversity of ecosystems. Furthermore, these organisms have a short life cycle, easy laboratory manipulation, and high sensitivity to marine pollution and, therefore, they are considered to be optimal bioindicators for assessing detrimental chemical agents that are related to the marine environment and with potential toxicity to human health, including neurotoxicity. In general, albeit simple, the nervous system of marine invertebrates is composed of neuronal and glial cells, and it exhibits biochemical and functional similarities with the vertebrate nervous system, including humans. In recent decades, new genetic and transcriptomic technologies have made the identification of many neural genes and transcription factors homologous to those in humans possible. Neuroinflammation, oxidative stress, and altered levels of neurotransmitters are some of the aspects of neurotoxic effects that can also occur in marine invertebrate organisms. The purpose of this review is to provide an overview of major marine pollutants, such as heavy metals, pesticides, and micro and nano-plastics, with a focus on their neurotoxic effects in marine invertebrate organisms. This review could be a stimulus to bio-research towards the use of invertebrate model systems other than traditional, ethically questionable, time-consuming, and highly expensive mammalian models.
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Kippler M, Gyllenhammar I, Glynn A, Levi M, Lignell S, Berglund M. Total mercury in hair as biomarker for methylmercury exposure among women in central Sweden- a 23 year long temporal trend study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115712. [PMID: 33022548 DOI: 10.1016/j.envpol.2020.115712] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/31/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Exposure to methylmercury (MeHg) through fish is a global public health problem. Exposure monitoring is essential for health risk assessment, especially in pregnant women and children due to the documented neurotoxicity. Herein, we evaluate a time series of MeHg exposure via fish in primiparous Swedish women, covering a time period of 23 years (1996-2019). The 655 included mothers were part of the POPUP study (Persistent Organic Pollutants in Uppsala Primiparas) conducted by the Swedish Food Agency (SFA). MeHg exposure was assessed via measurements of total mercury (Hg) in hair using either cold vapor atomic fluorescence spectrophotometry or inductively coupled plasma mass spectrometry, showing very good linear agreement (R2 = 0.97). Maternal characteristics and fish consumption were obtained via questionnaires. The median concentration of total Hg in hair was 0.38 mg/kg (range 0.17-1.5) in 1996 and 0.25 mg/kg (range 0.03-1.1) in 2019. On average the women consumed 11 ± 8.2 meals of fish per month, and fish consumption was positively correlated with total Hg in hair (Spearman correlation: 0.39; p < 0.001). In multiple regression analyses, the geometric mean annual decrease of total Hg in hair was -2.5% (95% CI: -3.2, -1.8%). Total fish consumption increased up to 2011 (B: 0.32 times/month per year; 95% CI 0.17, 0.46) after which it started to decline (B: -0.66 times/month per year; 95% CI -0.92, -0.40). Moreover, both total Hg in hair and fish consumption was positively associated with maternal age and education, and inversely associated with pre-pregnancy BMI. In conclusion, the exposure to MeHg via fish appears to be slowly declining among Swedish pregnant women.
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Affiliation(s)
- Maria Kippler
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Irina Gyllenhammar
- Swedish Food Agency, Uppsala, Sweden; Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Anders Glynn
- Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - Michael Levi
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Marika Berglund
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Houde M, Taranu ZE, Wang X, Young B, Gagnon P, Ferguson SH, Kwan M, Muir DC. Mercury in Ringed Seals (Pusa hispida) from the Canadian Arctic in Relation to Time and Climate Parameters. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:2462-2474. [PMID: 33025637 PMCID: PMC7756774 DOI: 10.1002/etc.4865] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/16/2020] [Accepted: 08/19/2020] [Indexed: 05/05/2023]
Abstract
Mercury is found in Arctic marine mammals that are important in the diet of northern Indigenous peoples. The objectives of the present long-term study, spanning a 45-yr period, were to 1) investigate the temporal trends of total mercury (THg; muscle and liver) and selenium (Se; liver) in ringed seals (Pusa hispida) from different regions of the Canadian Arctic; and 2) examine possible relationships with age, diet, and climate parameters such as air temperature, precipitation, climatic indices, and ice-coverage. Ringed seals were collected by hunters in northern communities in the Beaufort Sea, Central Arctic, Eastern Baffin Island, Hudson Bay, and Ungava/Nunatsiavut regions (Canada) between 1972 and 2017. Mercury levels did not change through time in seal liver, but THg levels in muscle decreased in seals from Hudson Bay (-0.91%/yr) and Ungava/Nunatsiavut (-1.30%/yr). Carbon stable isotope values in seal muscle decreased significantly through time in 4 regions. Selenium-to-THg ratios were found to be >1 for all years and regions. Variation partitioning analyses across regions indicated that THg trends in seals were mostly explained by age (7.3-21.7%), climate parameters (3.5-12.5%), and diet (up to 9%); climate indices (i.e., Arctic and North Atlantic Oscillations, Pacific/North American pattern) explained the majority of the climate portion. The THg levels had a positive relationship with Arctic Oscillation for multiple regions. Associations of THg with air temperature, total precipitation, and sea-ice coverage, as well as with North Atlantic Oscillation and Pacific/North American pattern were found to vary with tissue type and geographical area. Environ Toxicol Chem 2020;39:2462-2474. © 2020 Her Majesty the Queen in Right of Canada. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. Reproduced with the permission of the Minister of Fisheries and Oceans Canada.
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Affiliation(s)
- Magali Houde
- Environment and Climate Change CanadaMontrealQuebecCanada
| | | | - Xiaowa Wang
- Environment and Climate Change CanadaBurlingtonOntarioCanada
| | - Brent Young
- Arctic Aquatic Research DivisionDepartment of Fisheries and OceansWinnipegManitobaCanada
| | - P. Gagnon
- Environment and Climate Change CanadaMontrealQuebecCanada
| | - Steve H. Ferguson
- Arctic Aquatic Research DivisionDepartment of Fisheries and OceansWinnipegManitobaCanada
| | | | - Derek C.G. Muir
- Environment and Climate Change CanadaBurlingtonOntarioCanada
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Rosati G, Solidoro C, Canu D. Mercury dynamics in a changing coastal area over industrial and postindustrial phases: Lessons from the Venice Lagoon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140586. [PMID: 32659553 DOI: 10.1016/j.scitotenv.2020.140586] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
During the industrial period, significant amounts of mercury (Hg) were discharged into the Venice Lagoon. Here, a spatially explicit model was implemented to reconstruct the temporal evolution of the total mercury (HgT) and methylmercury (MeHgT) concentrations in lagoon water and sediments over two centuries (1900-2100), from preindustrial to postindustrial phases. The model simulates the transport and transformations of particulate and dissolved Hg species. It is forced with time-variable Hg inputs and environmental conditions, including scenarios of future atmospheric deposition, reconstructed according to local and global socioeconomic scenarios. Since 1900, ~36 Mg of HgT and ~380 kg of MeHgT were delivered to the lagoon, and stored in the sediments. The deposition of Hg from the water to the seafloor increased during a period of eutrophication (1980s); however, the reverse fluxes increased during a period of high sediment resuspension caused by the unregulated fishing of Manila clams (1990s). In the current postindustrial phase, the lagoon sediments have acted as a secondary source to the lagoon waters, delivering Hg (~38 kg y-1) and MeHg (~0.07 kg y-1). The MeHg inputs from the watershed (~0.28 kg y-1) appear to be higher than the secondary fluxes from the sediments. The estimated HgT export to the Adriatic Sea is ~56 kg y-1. Since HgT and MeHgT outputs slightly exceed inputs, the concentrations are slowly decreasing. While the decreasing trend is maintained in all scenarios, the future level of atmospheric deposition will affect Hg concentrations and sediment recovery times. Though limited by inherent simplifications, this work results show that the reconstruction of historical dynamics using a holistic approach, supported by data, can improve our understanding of the pollutants distribution and the quantification of local emissions. Downscaling from trends predicted at the global scale taking into account for regional differences seems useful to investigate the pollutants fate.
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Affiliation(s)
- Ginevra Rosati
- National Institute of Oceanography and Applied Geophysics - OGS, Trieste, Italy.
| | - Cosimo Solidoro
- National Institute of Oceanography and Applied Geophysics - OGS, Trieste, Italy
| | - Donata Canu
- National Institute of Oceanography and Applied Geophysics - OGS, Trieste, Italy
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Bai Z, Wang M. Warmer temperature increases mercury toxicity in a marine copepod. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110861. [PMID: 32544748 DOI: 10.1016/j.ecoenv.2020.110861] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/23/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Marine biota have been co-challenged with ocean warming and mercury (Hg) pollution over many generations because of human activities; however, the molecular mechanisms to explain their combined effects are not well understood. In this study, a marine planktonic copepod Pseudodiaptomus annandalei was acutely exposed to different temperature (22 and 25 °C) and Hg (0 and 118 μg/L) treatments in a 24-h cross-factored experiment. Hg accumulation and its subcellular fractions were determined in the copepods after exposure. The expression of the genes of superoxide dismutase (SOD), glutathione peroxidase (GPx), metallothionein1 (mt1), heat shock protein 70 (hsp70), hsp90, hexokinase (hk), and pyruvate kinase (pk) was also analyzed. Both the Hg treatment alone and the combined exposure of warmer temperature plus Hg pollution remarkably facilitated Hg bioaccumulation in the exposed copepods. Compared with the Hg treatment alone, the combined exposure increased total Hg accumulation and also the amount of Hg stored in the metal-sensitive fractions (MSF), suggesting elevated Hg toxicity in P. annandalei under a warmer environment, given that the MSF is directly related to metal toxicity. The warmer temperature significantly up-regulated the mRNA levels of mt1, hsp70, hsp90, and hk, indicating the copepods suffered from thermal stress. With exposure to Hg, the mRNA level of SOD increased strikingly but the transcript levels of hsp90, hk, and pk decreased significantly, indicating that Hg induced toxic events (e.g., oxidative damage and energy depletion). Particularly, in contrast to the Hg treatment alone, the combined exposure significantly down-regulated the mRNA levels of SOD and GPx but up-regulated the mRNA levels of mt1, hsp70, hsp90, hk, and pk. Collectively, the results of this study indicate that ocean warming will potentially boost Hg toxicity in the marine copepod P. annandalei, which is information that will increase the accuracy of the projections of marine ecosystem responses to the joint effects of climate change stressors and metal pollution on the future ocean.
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Affiliation(s)
- Zhuoan Bai
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies/College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China.
| | - Minghua Wang
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies/College of the Environment & Ecology, Xiamen University, Xiamen, 361102, China.
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Machovsky-Capuska GE, von Haeften G, Romero MA, Rodríguez DH, Gerpe MS. Linking cadmium and mercury accumulation to nutritional intake in common dolphins (Delphinus delphis) from Patagonia, Argentina. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114480. [PMID: 32283460 DOI: 10.1016/j.envpol.2020.114480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/04/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Bioaccumulation of Hg and Cd from food is a complex ecological process that has been oversimplified in the past. Common dolphins (Delphinus delphis) provide a powerful model to biomonitor metal concentrations in marine environments worldwide. We combined proportions-based nutritional geometry with metal analysis, stomach content analysis and the proximate composition of prey, to yield novel insights into the accumulation of Hg and Cd. Our analysis showed an age-related accumulation trend for Cd and Hg in kidney and liver, with highest concentrations found at 18 years of age. When viewed through the lens of nutritional ecology, Argentine anchovy (58.1 Mass %) and South American long-finned squid (22.7 Mass %), provided most of the dietary intake of protein (P) and lipids (L) (P:L ratio = 2.6:1.0) and also represented the main source for Cd and Hg levels accumulated in their bodies. This study presents unprecedented evidence on metal accumulation in relation to age and nutritional intake in a marine predator.
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Affiliation(s)
| | | | - M Alejandra Romero
- Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni", Güemes 1030, San Antonio Oeste, 8520, Rio Negro, Argentina; Escuela Superior de Ciencias Marinas, Universidad Nacional del Comahue, San Martín 247, San Antonio Oeste, Rio Negro, Argentina
| | - Diego H Rodríguez
- Instituto de Investigaciones Marinas y Costeras, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CONICET, Funes 3350, Mar del Plata, B7602AYL, Argentina; Laboratorio de Mamíferos Marinos, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Marcela S Gerpe
- Instituto de Investigaciones Marinas y Costeras, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, CONICET, Funes 3350, Mar del Plata, B7602AYL, Argentina; Laboratorio de Ecotoxicología, Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
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Ocean Acidification and Human Health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124563. [PMID: 32599924 PMCID: PMC7344635 DOI: 10.3390/ijerph17124563] [Citation(s) in RCA: 169] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/19/2020] [Accepted: 06/20/2020] [Indexed: 12/12/2022]
Abstract
The ocean provides resources key to human health and well-being, including food, oxygen, livelihoods, blue spaces, and medicines. The global threat to these resources posed by accelerating ocean acidification is becoming increasingly evident as the world's oceans absorb carbon dioxide emissions. While ocean acidification was initially perceived as a threat only to the marine realm, here we argue that it is also an emerging human health issue. Specifically, we explore how ocean acidification affects the quantity and quality of resources key to human health and well-being in the context of: (1) malnutrition and poisoning, (2) respiratory issues, (3) mental health impacts, and (4) development of medical resources. We explore mitigation and adaptation management strategies that can be implemented to strengthen the capacity of acidifying oceans to continue providing human health benefits. Importantly, we emphasize that the cost of such actions will be dependent upon the socioeconomic context; specifically, costs will likely be greater for socioeconomically disadvantaged populations, exacerbating the current inequitable distribution of environmental and human health challenges. Given the scale of ocean acidification impacts on human health and well-being, recognizing and researching these complexities may allow the adaptation of management such that not only are the harms to human health reduced but the benefits enhanced.
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Häder DP, Banaszak AT, Villafañe VE, Narvarte MA, González RA, Helbling EW. Anthropogenic pollution of aquatic ecosystems: Emerging problems with global implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:136586. [PMID: 31955090 DOI: 10.1016/j.scitotenv.2020.136586] [Citation(s) in RCA: 216] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 01/05/2020] [Accepted: 01/06/2020] [Indexed: 04/15/2023]
Abstract
Aquatic ecosystems cover over two thirds of our planet and play a pivotal role in stabilizing the global climate as well as providing a large array of services for a fast-growing human population. However, anthropogenic activities increasingly provoke deleterious impacts in aquatic ecosystems. In this paper we discuss five sources of anthropogenic pollution that affect marine and freshwater ecosystems: sewage, nutrients and terrigenous materials, crude oil, heavy metals and plastics. Using specific locations as examples, we show that land-based anthropogenic activities have repercussions in freshwater and marine environments, and we detail the direct and indirect effects that these pollutants have on a range of aquatic organisms, even when the pollutant source is distant from the sink. While the issues covered here do focus on specific locations, they exemplify emerging problems that are increasingly common around the world. All these issues are in dire need of stricter environmental policies and legislations particularly for pollution at industrial levels, as well as solutions to mitigate the effects of anthropogenic pollutants and restore the important services provided by aquatic ecosystems for future generations.
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Affiliation(s)
- Donat-P Häder
- Friedrich-Alexander Universität, Dept. Biology, Neue Str. 9, D-91096 Möhrendorf, Germany.
| | - Anastazia T Banaszak
- Unidad Académica de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Mexico
| | - Virginia E Villafañe
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Estación de Fotobiología Playa Unión, Casilla de Correos N° 15, 9103 Rawson, Chubut, Argentina
| | - Maite A Narvarte
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos Almirante Storni, Escuela Superior de Ciencias Marinas, Universidad Nacional del Comahue, San Martín 247, 8520 San Antonio Oeste, Río Negro, Argentina
| | - Raúl A González
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos Almirante Storni, Escuela Superior de Ciencias Marinas, Universidad Nacional del Comahue, San Martín 247, 8520 San Antonio Oeste, Río Negro, Argentina
| | - E Walter Helbling
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Estación de Fotobiología Playa Unión, Casilla de Correos N° 15, 9103 Rawson, Chubut, Argentina
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50
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Ndraha N, Wong HC, Hsiao HI. Managing the risk of Vibrio parahaemolyticus infections associated with oyster consumption: A review. Compr Rev Food Sci Food Saf 2020; 19:1187-1217. [PMID: 33331689 DOI: 10.1111/1541-4337.12557] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/15/2020] [Accepted: 03/02/2020] [Indexed: 12/15/2022]
Abstract
Vibrio parahaemolyticus is a Gram-negative bacterium that is naturally present in the marine environment. Oysters, which are water filter feeders, may accumulate this pathogen in their soft tissues, thus increasing the risk of V. parahaemolyticus infection among people who consume oysters. In this review, factors affecting V. parahaemolyticus accumulation in oysters, the route of the pathogen from primary production to consumption, and the potential effects of climate change were discussed. In addition, intervention strategies for reducing accumulation of V. parahaemolyticus in oysters were presented. A literature review revealed the following information relevant to the present study: (a) managing the safety of oysters (for human consumption) from primary production to consumption remains a challenge, (b) there are multiple factors that influence the concentration of V. parahaemolyticus in oysters from primary production to consumption, (c) climate change could possibly affect the safety of oysters, both directly and indirectly, placing public health at risk, (d) many intervention strategies have been developed to control and/or reduce the concentration of V. parahaemolyticus in oysters to acceptable levels, but most of them are mainly focused on the downstream steps of the oyster supply chain, and (c) although available regulation and/or guidelines governing the safety of oyster consumption are mostly available in developed countries, limited food safety information is available in developing countries. The information provided in this review may serve as an early warning for managing the future effects of climate change on the safety of oyster consumption.
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Affiliation(s)
- Nodali Ndraha
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (R.O.C.)
| | - Hin-Chung Wong
- Department of Microbiology, Soochow University, Taipei, Taiwan (R.O.C.)
| | - Hsin-I Hsiao
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (R.O.C.).,Institute of Food Safety and Risk Management, National Taiwan Ocean University, Keelung, Taiwan (R.O.C.)
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