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Lin W, Li D, Pan L, Li M, Tong Y. Cyanobacteria-cyanophage interactions between freshwater and marine ecosystems based on large-scale cyanophage genomic analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175201. [PMID: 39102952 DOI: 10.1016/j.scitotenv.2024.175201] [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: 04/11/2024] [Revised: 07/30/2024] [Accepted: 07/30/2024] [Indexed: 08/07/2024]
Abstract
The disparities in harmful algal blooms dynamics are largely attributed to variations in cyanobacteria populations within aquatic ecosystems. However, cyanobacteria-cyanophage interactions and their role in shaping cyanobacterial populations has been previously underappreciated. To address this knowledge gap, we isolated and sequenced 42 cyanophages from diverse water sources in China, with the majority (n = 35) originating from freshwater sources. We designated these sequences as the "Novel Cyanophage Genome sequence Collection" (NCGC). NCGC displayed notable genetic variations, with 95 % (40/42) of the sequences representing previously unidentified taxonomic ranks. By integrating NCGC with public data of cyanophages and cyanobacteria, we found evidence for more frequent historical cyanobacteria-cyanophage interactions in freshwater ecosystems. This was evidenced by a higher prevalence of prophage integrase-related genes in freshwater cyanophages (37.97 %) than marine cyanophages (7.42 %). In addition, freshwater cyanophages could infect a broader range of cyanobacteria orders (n = 4) than marine ones (n = 0). Correspondingly, freshwater cyanobacteria harbored more defense systems per million base pairs in their genomes, indicating more frequent phage infections. Evolutionary and cyanophage epidemiological studies suggest that interactions between cyanobacteria and cyanophages in freshwater and marine ecosystems are interconnected, and that brackish water can act as a transitional zone for freshwater and marine cyanophages. In conclusion, our research significantly expands the genetic information database of cyanophage, offering a wider selection of cyanophages to control harmful cyanobacterial blooms. Additionally, we represent a pioneering large-scale and comprehensive analysis of cyanobacteria and cyanophage sequencing data, and it provides theoretical guidance for the application of cyanophages in different environments.
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Affiliation(s)
- Wei Lin
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dengfeng Li
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Lingting Pan
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Mengzhe Li
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Yigang Tong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), Beijing University of Chemical Technology, Beijing 100029, China.
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2
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Bergström P, Hargrave M, Hassellöv J, Sanders C, Lindegarth M. Spatial and seasonal variability in benthic impact of mussel farms: Predicting and mitigating impacts using ambient oxygen conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 949:175258. [PMID: 39098415 DOI: 10.1016/j.scitotenv.2024.175258] [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: 02/26/2024] [Revised: 07/12/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
Environmental impacts are a cause for concern when developing and expanding aquaculture and to be sustainable potential negative effects need to be addressed. The intensity and extent of these impacts likely vary among sites and seasons, depending on multiple factors including the physical and biological setting and operational aspects. Using a combination of sampling techniques, we investigated the spatial variability in epibenthic impacts in eleven commercial mussel farms, on the Swedish west coast. We found increased levels of organic content, changes in epibenthic macrofauna and increased cover of Beggiatoa sp., a documented indicator of hypoxia. The extent of these impacts was generally limited to the extent of the farms. Because the cover of Beggiatoa sp. was particularly clear and because oxygen conditions in the sediment is of great importance to the structure and function of these habitats, we analysed spatial patterns using an index of the benthic footprint (BFI) accounting for both intensity and extent of impacts. In the summer, the BFI varied strongly among farm-sites and subsequent analyses showed that it highly correlated with ambient bottom oxygen concentration. Repeated sampling during early spring, however, showed that impacts were quickly reversible also in the most impacted sites. Thus, we conclude that in Swedish coastal waters the benthic footprint calculated on the % cover of Beggiatoa sp. is highly dependent on ambient oxygen concentration. We suggest that knowledge about spatial and temporal patterns of oxygen in the bottom water can be used to predict the severity of impacts and provide an important criterion in a site-selection process aimed at developing a sustainable food industry.
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Affiliation(s)
- Per Bergström
- Department of Marine Sciences Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden.
| | - Matthew Hargrave
- Department of Marine Sciences Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Jesper Hassellöv
- Department of Marine Sciences Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Christophe Sanders
- Department of Marine Sciences Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden
| | - Mats Lindegarth
- Department of Marine Sciences Tjärnö, University of Gothenburg, SE-452 96 Strömstad, Sweden
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3
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Courtene-Jones W, Cheung SWH, Thompson RC, Hanley ME. Effect of biodegradable and conventional microplastic exposure in combination with seawater inundation on the coastal terrestrial plant Plantago coronopus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124573. [PMID: 39029863 DOI: 10.1016/j.envpol.2024.124573] [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: 05/21/2024] [Revised: 06/28/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
Coastal ecosystems face a multitude of pressures including plastic pollution and increased flood risk due to sea level rise and the frequency and severity of storms. Experiments seldom examine multiple stressors such as these, but here we quantified the effect of microplastics (polyethylene terephthalate (PET): a durable plastic and polybutylene adipate terephthalate (PBAT): a biodegradable polymer), in combination with simulated seawater inundation on the coastal species Plantago coronopus. After 35-days exposure to plastic (0.02 g.Kg-1, <300 μm diameter), P. coronopus were flooded to pot height with artificial seawater for 72-h, drained and grown for a further 24-days. Plant mortality, necrosis and photosynthetic efficiency (Fv/Fm) were recorded throughout, with root:shoot biomass and scape production (flower stalks) quantified at harvest. There were significant interactions between microplastics and seawater on the root:shoot ratio; a measure of resource allocation. The allocation to belowground biomass increased significantly under the PET + inundation treatment compared to the PBAT + inundation and the no plastic + inundation treatments, with potential consequences on the capture of water, nutrients and sunlight, which can affect plant performance. Plant necrosis significantly increased, and Fv/Fm declined as a result of seawater inundation. While not significant, plant Fv/Fm responses were influenced by microplastics (17% and 7% reduction in PBAT and PET exposure respectively compared to the no plastic control). Plants mediated this stress response with no discernible treatment-specific effects detected in Fv/Fm 14-days after seawater introduction. Plastic exposure significantly influenced potential reproductive output, with lower average scape numbers across PBAT treatments, but higher in PET treatments. This study highlights the complex interactions and potential for microplastics to present an elevated risk when in combination with additional stressors like seawater flooding; establishing the threat presented to ecosystem resilience in a changing world is a priority.
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Affiliation(s)
- W Courtene-Jones
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, UK.
| | - S W H Cheung
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, UK
| | - R C Thompson
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, UK
| | - M E Hanley
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, UK
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4
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Navon G, Nordland O, Kaplan A, Avisar D, Shenkar N. Detection of 10 commonly used pharmaceuticals in reef-building stony corals from shallow (5-12 m) and deep (30-40 m) sites in the Red Sea. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124698. [PMID: 39122171 DOI: 10.1016/j.envpol.2024.124698] [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: 05/28/2024] [Revised: 07/07/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Although pharmaceutically-active compounds (PhACs) are increasingly being found to be present in marine environments, their presence in coral reefs, already under threat from various stressors, has remains unexplored. This study focused on PhAC presence in two stony-coral genera, collected from different depths and sites in the Red Sea. The findings reveal the presence of ten different PhACs, with elevated concentrations detected in corals from shallow sites and in areas with heavy human activity. Notably, all samples contained at least one PhAC, with the antibiotic sulfamethoxazole being the most prevalent compound, detected in 93% of the samples, at concentrations ranging from 1.5 to 2080 ng/g dry weight (dw) tissue, with an average concentration of 106 ng/g dw. These findings underscore the urgent need for conservation initiatives aimed at protecting coral-reef ecosystems from the escalating threat of anthropogenic contamination, including such potential risks as the development of antibiotic resistance in marine organisms and the disruption of critical spawning synchrony among coral populations.
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Affiliation(s)
- Gal Navon
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Olivia Nordland
- The Water Research Center, Porter School of the Environment and Earth Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Aviv Kaplan
- The Water Research Center, Porter School of the Environment and Earth Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Dror Avisar
- The Water Research Center, Porter School of the Environment and Earth Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Noa Shenkar
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, 69978, Israel; The Steinhardt Museum of Natural History and National Research Center, Tel Aviv University, Tel Aviv, 69978, Israel.
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5
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Sambolino A, Alves F, Rodriguez M, Weyn M, Ferreira R, Correia AM, Rosso M, Kaufmann M, Cordeiro N, Dinis A. Phthalates and fatty acid markers in free-ranging cetaceans from an insular oceanic region: Ecological niches as drivers of contamination. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124693. [PMID: 39122173 DOI: 10.1016/j.envpol.2024.124693] [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: 09/11/2023] [Revised: 07/15/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Plastic additives, such as phthalates, are ubiquitous contaminants that can have detrimental impacts on marine organisms and overall ecosystems' health. Valuable information about the status and resilience of marine ecosystems can be obtained through the monitoring of key indicator species, such as cetaceans. In this study, fatty acid profiles and phthalates were examined in blubber biopsies of free-ranging individuals from two delphinid species (short-finned pilot whale - Globicephala macrorhynchus, n = 45; common bottlenose dolphin - Tursiops truncatus, n = 39) off Madeira Island (NE Atlantic). This investigation aimed to explore the relations between trophic niches (epipelagic vs. mesopelagic), contamination levels, and the health status of individuals within different ecological and biological groups (defined by species, residency patterns and sex). Multivariate analysis of selected dietary fatty acids revealed a clear niche segregation between the two species. Di-n-butylphthalate (DBP), diethyl phthalate (DEP), and bis(2-ethylhexyl) phthalate (DEHP) were the most prevalent among the seven studied phthalates, with the highest concentration reached by DEHP in a bottlenose dolphin (4697.34 ± 113.45 ng/g). Phthalates esters (PAEs) concentration were higher in bottlenose dolphins (Mean ∑ PAEs: 947.56 ± 1558.34 ng/g) compared to pilot whales (Mean ∑ PAEs: 229.98 ± 158.86 ng/g). In bottlenose dolphins, DEHP was the predominant phthalate, whereas in pilot whales, DEP and DBP were more prevalent. Health markers suggested pilot whales might suffer from poorer physiological conditions than bottlenose dolphins, although high metabolic differences were seen between the two species. Phthalate levels showed no differences by ecological or biological groups, seasons, or years. This study is the first to assess the extent of plastic additive contamination in free-ranging cetaceans from a remote oceanic island system, underscoring the intricate relationship between ecological niches and contaminant exposure. Monitoring these chemicals and their potential impacts is vital to assess wild population health, inform conservation strategies, and protect critical species and habitats.
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Affiliation(s)
- Annalisa Sambolino
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; LB3, Faculty of Exact Science and Engineering, University of Madeira, Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal.
| | - Filipe Alves
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal
| | - Marta Rodriguez
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; LB3, Faculty of Exact Science and Engineering, University of Madeira, Funchal, Madeira Island, Portugal
| | - Mieke Weyn
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal; Department of Biology, University of Évora, Évora, Portugal
| | - Rita Ferreira
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal
| | - Ana M Correia
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Porto, Portugal
| | - Massimiliano Rosso
- International Center for Environmental Monitoring - CIMA Research Foundation, Savona, Italy
| | - Manfred Kaufmann
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal
| | - Nereida Cordeiro
- LB3, Faculty of Exact Science and Engineering, University of Madeira, Funchal, Madeira Island, Portugal; CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Matosinhos, Portugal
| | - Ana Dinis
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Madeira Island, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Madeira Island, Portugal
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6
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Toumi C, Gauthier O, Grall J, Thiébaut É, Boyé A. Disentangling the effect of space, time, and environmental and anthropogenic drivers on coastal macrobenthic β diversity in contrasting habitats over 15 years. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:173919. [PMID: 38889817 DOI: 10.1016/j.scitotenv.2024.173919] [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: 03/15/2024] [Revised: 05/22/2024] [Accepted: 06/09/2024] [Indexed: 06/20/2024]
Abstract
Coastal zones are biodiversity hotspots and deliver essential ecosystem functions and services, yet they are exposed to multiple and interacting anthropogenic and environmental constraints. The individual and cumulative effects of these constraints on benthic communities, a key component of coastal ecosystems, and their variability across space and time, remains to be thoroughly quantified to guide conservation actions. Here, we explored how the presence of biogenic habitats influences the response of benthic communities to natural and anthropogenic constraints. We investigated this effect in both intertidal and subtidal habitats exposed to different pressures. We used data collected in the North-East Atlantic over 15 years (2005-2019) as part of the REBENT monitoring program, covering 38 sites of bare sediments, intertidal seagrass beds and maerl beds. We collected a range of environmental variables and proxies of anthropogenic pressures and used variation and hierarchical partitioning with redundancy analyses to estimate their relative effect on macrobenthic communities. We used descriptors modeling spatial and temporal structures (dbMEMs) to explore the scale of their effects and potential missing predictors. The selected variables explained between 53 % and 64 % of macrobenthic β diversity depending on habitat and depth. Fishing pressures, sedimentary and hydrodynamics variables stood out as the most important predictors across all habitats while proxies of anthropogenic pressures were overall more important in intertidal habitats. In the intertidal, presence of biogenic habitat strongly modulated the amount of explained variance and the identity of the selected variable. Across both tidal levels, analysis of models' residuals further indicated that biogenic habitats might mitigate the effect of extreme environmental events. Our study provides a hierarchy of the most important drivers of benthic communities across different habitats and tidal levels, emphasizing the prominence of anthropogenic pressures on intertidal communities and the role of biogenic habitats in mitigating environmental changes.
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Affiliation(s)
- Chirine Toumi
- LEMAR, Univ Brest, CNRS, IRD, Ifremer, 29280 Plouzané, France.
| | - Olivier Gauthier
- LEMAR, Univ Brest, CNRS, IRD, Ifremer, 29280 Plouzané, France; OSU IUEM, Univ Brest, CNRS, IRD, 29280 Plouzané, France
| | - Jacques Grall
- LEMAR, Univ Brest, CNRS, IRD, Ifremer, 29280 Plouzané, France; OSU IUEM, Univ Brest, CNRS, IRD, 29280 Plouzané, France
| | - Éric Thiébaut
- Sorbonne Université, CNRS, Station Biologique de Roscoff, UMR7144, Adaptation et Diversité en Milieu Marin, Place Georges Teissier, CS90074, 29688 Roscoff Cedex, France; Sorbonne Université, CNRS, OSU STAMAR, UAR2017, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Aurélien Boyé
- Ifremer, Centre de Bretagne, DYNECO, Laboratory of Coastal Benthic Ecology, 29280 Plouzané, France
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Beauvieux A, Bourjea J, Fromentin JM, Jean C, Ciccione S, Ballorain K, Romero D, Dbouk Z, Hirschler A, Bertile F, Schull Q. Tracing troubles: Unveiling the hidden impact of inorganic contamination on juvenile green sea turtle. MARINE POLLUTION BULLETIN 2024; 208:117048. [PMID: 39368147 DOI: 10.1016/j.marpolbul.2024.117048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 09/09/2024] [Accepted: 09/23/2024] [Indexed: 10/07/2024]
Abstract
Human activities and climate change have negatively affected the world's oceans, leading to a decline of 30 to 60 % in coastal ecosystems' biodiversity and habitats. The projected increase in the human population to 9.7 billion by 2050 raises concerns about the sustainability of marine ecosystem conservation and exploitation. Marine turtles, as sentinel species, accumulate contaminants, including trace elements, due to their extensive migration and long-life span. However, there is a lack of data on the degree of contamination and their effects on marine turtles' health. This study focuses on assessing in-situ inorganic contamination in juvenile green sea turtles from La Réunion Island and its short-term impact on individual health, using conventional biomarkers and proteomics. The goals include examining contamination patterns in different tissues and identifying potential new biomarkers for long-term monitoring and conservation efforts. The study identified differential metal contamination between blood and scute samples, which could help illuminate temporal exposure to trace elements in turtle individuals. We also found that some conventional biomarkers were related to trace element exposure, while the proteome responded differently to various contaminant mixtures. Immune processes, cellular organization, and metabolism were impacted, indicating that contaminant mixtures in the wild would have an effect on turtle's health. Fifteen biomarker candidates associated with strong molecular responses of sea turtle to trace element contamination are proposed for future long-term monitoring. The findings emphasize the importance of using proteomic approaches to detect subtle physiological responses to contaminants in the wild and support the need for non-targeted analysis of trace elements in the biomonitoring of sea turtle health.
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Affiliation(s)
| | - Jérôme Bourjea
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
| | | | - Claire Jean
- Centre d'Etude et de Découverte des Tortues Marines (CEDTM) Saint-Leu, Reunion Island, France
| | - Stéphane Ciccione
- Centre d'Etude et de Découverte des Tortues Marines (CEDTM) Saint-Leu, Reunion Island, France
| | - Katia Ballorain
- Kélonia, The Marine Turtle Observatory of Reunion Island, 46 rue du Gal de Gaulle, Saint-Leu, Reunion Island, France
| | - Diego Romero
- Toxicology Department, Faculty of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain
| | - Zahraa Dbouk
- Université de Strasbourg, CNRS, IPHC UMR 7178, 23 rue du Loess, 67037, Strasbourg Cedex 2, France; Infrastructure Nationale de Protéomique ProFI, FR2048 CNRS CEA, Strasbourg 67087, France
| | - Aurélie Hirschler
- Université de Strasbourg, CNRS, IPHC UMR 7178, 23 rue du Loess, 67037, Strasbourg Cedex 2, France; Infrastructure Nationale de Protéomique ProFI, FR2048 CNRS CEA, Strasbourg 67087, France
| | - Fabrice Bertile
- Université de Strasbourg, CNRS, IPHC UMR 7178, 23 rue du Loess, 67037, Strasbourg Cedex 2, France; Infrastructure Nationale de Protéomique ProFI, FR2048 CNRS CEA, Strasbourg 67087, France
| | - Quentin Schull
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
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8
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Shahbazian M, Zamani A, Mehdinia A, Khosravi Y, Mahdavi V. Polychlorinated biphenyls (PCBs) in the Persian Gulf and Gulf of Oman: baseline report on occurrence, distribution, and ecological risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:1003. [PMID: 39356347 DOI: 10.1007/s10661-024-13099-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 09/06/2024] [Indexed: 10/03/2024]
Abstract
In the present study, 18 polychlorinated biphenyl (PCB) compounds were measured in marine sediments collected from 49 offshore stations in the Persian Gulf and the Gulf of Oman in 2019. After the last oceanographic cruise in 2006, no study has been performed on the offshore sediments of this region, and this is the first study on the PCBs in this area. The total amount of PCB compounds in the sediment samples ranged from 74.38 ng kg-1 (near Abu Musa Island) to 1212.98 ng kg-1 (near Siri and Kish Island). The maximum and minimum values of the individual detected PCB compounds were 175.88 ng kg-1 (PCB52) and 2.09 ng kg-1 (PCB156), respectively. The levels of total PCBs detected in sediments were lower than the Canadian interim sediment quality guideline value of 21500 ng kg-1 for marine sediments. The sedimentary mass inventories for Σ18PCBs were 0.6 and 0.2 mt for the Persian Gulf and Gulf of Oman, respectively.
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Affiliation(s)
- Maryam Shahbazian
- Department of Environmental Science, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Abbasali Zamani
- Department of Environmental Science, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Ali Mehdinia
- Iranian National Institute for Oceanography and Atmospheric Science, Tehran, Iran.
| | - Younes Khosravi
- Department of Environmental Science, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Vahideh Mahdavi
- Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
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9
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Zhao C, Zheng M, Ge Y. The quantifying, mapping, and risk analysis of human-related stressors in the high seas. Sci Prog 2024; 107:368504241288373. [PMID: 39360494 PMCID: PMC11459562 DOI: 10.1177/00368504241288373] [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] [Indexed: 10/04/2024]
Abstract
Objectives: Marine biodiversity and ecosystem services in the high seas are threatened by numerous stress factors caused by human activities, including global shipping, high-sea fishing, marine plastic pollution, and anthropogenic climate change. Socioeconomic factors are one of the criteria for the establishment of area-based management tools in the high seas for marine biodiversity conservation beyond national jurisdiction. The aim of the work is to propose a spatiotemporal approach to identify risks from marine human activities and recommendations for high seas governance. Methods: Data related to human activities from 2014 to 2022 were used to calculate the distribution and changes of human-related stressors, and the risk to marine biodiversity in the high seas caused by human activities. Results: The North Atlantic, Philippine Sea, Arabian Sea, Bay of Bengal, and East Central Atlantic show high and increasing intensities of human-related stressors, and are therefore particularly at need for the protection and conservation of marine biodiversity. Risks from human activities vary within the marine areas that are prioritized for biodiversity protection. The study recommends that the designation of high seas protected areas should take into account the types of risks to which the different marine areas are exposed, and that the high seas protected areas should be established gradually. At the same time, appropriate management measures should be formulated according to the intensity of human activities in the different marine areas. Conclusions: Quantifying and classifying the risk from human-related stressors could help identify solution for the protection and conservation and facilitate the marine spatial planning, establishment area based management tools, including marine protected areas in the high seas.
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Affiliation(s)
- Chang Zhao
- Faculty of Geographical Science, Beijing Normal University, Beijing, China
- China Institute for Marine Affairs, Ministry of Natural Resources, Beijing, China
| | - Miaozhuang Zheng
- China Institute for Marine Affairs, Ministry of Natural Resources, Beijing, China
| | - Yuejing Ge
- Faculty of Geographical Science, Beijing Normal University, Beijing, China
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10
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Mauro M, Vazzana M, Ceraulo M, de Vita C, di Fiore V, Giacalone VM, Grammauta R, Lazzara V, Papale E, Vizzini A, Buscaino G. Effects of seismic water guns on the peristomial membrane of sea urchins (Arbacia lixula, Linnaeus 1758). MARINE POLLUTION BULLETIN 2024; 207:116892. [PMID: 39232412 DOI: 10.1016/j.marpolbul.2024.116892] [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: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 09/06/2024]
Abstract
The seismic water gun is widely used and plays an important role in seabed imaging acquisition; however, acoustic impacts on marine organisms are currently poorly understood. The aim of this study was to analyse the biochemical responses on the peristomial membrane (PM) of the sea urchin, Arbacia lixula, when exposed to water gun shots in open water. The PM (located around the mouth) is involved in vital functions, such as nutrition and protection. Individuals of sea urchins (n = 7 for each time slot) were sampled before, at the end, and at intervals of 3 h and 24 h after acoustic emission (duration of 20 min). Significant increases in superoxide dismutase, peroxidase, esterase and alkaline were observed immediately after water gun shots, highlighting an increase in the oxidative and inflammatory state of the tissue. Our results showed that acoustic impacts could interfere with PM vital functions, compromising the health, survival and ultimately the conservation of the species. Understanding these effects is crucial to predicting consequences on sea urchin populations and marine ecosystems.
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Affiliation(s)
- M Mauro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy
| | - M Vazzana
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy
| | - M Ceraulo
- Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, 90133 Palermo, Italy.
| | - C de Vita
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy; Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy
| | - V di Fiore
- Institute of Heritage Science, National Research Council (CNR), Via Cardinale Guglielmo Sanfelice 8, 80134 Napoli (NA), Italy
| | - V M Giacalone
- Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy
| | - R Grammauta
- Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy
| | - V Lazzara
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy
| | - E Papale
- Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy
| | - A Vizzini
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy
| | - G Buscaino
- Institute of Anthropic Impact and Sustainability in the Marine Environment (IAS), National Research Council (CNR), UOS Torretta Granitola (TP) Campobello di Mazara, Trapani 91021, Italy
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11
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O’Hara CC, Frazier M, Valle M, Butt N, Kaschner K, Klein C, Halpern BS. Cumulative human impacts on global marine fauna highlight risk to biological and functional diversity. PLoS One 2024; 19:e0309788. [PMID: 39292645 PMCID: PMC11410257 DOI: 10.1371/journal.pone.0309788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/19/2024] [Indexed: 09/20/2024] Open
Abstract
Anthropogenic stressors to marine ecosystems from climate change and human activities increase extinction risk of species, disrupt ecosystem integrity, and threaten important ecosystem services. Addressing these stressors requires understanding where and to what extent they are impacting marine biological and functional diversity. We model cumulative risk of human impact upon 21,159 marine animal species by combining information on species-level vulnerability and spatial exposure to a range of anthropogenic stressors. We apply this species-level assessment of human impacts to examine patterns of species-stressor interactions within taxonomic groups. We then spatially map impacts across the global ocean, identifying locations where climate-driven impacts overlap with fishing, shipping, and land-based stressors to help inform conservation needs and opportunities. Comparing species-level modeled impacts to those based on marine habitats that represent important marine ecosystems, we find that even relatively untouched habitats may still be home to species at elevated risk, and that many species-rich coastal regions may be at greater risk than indicated from habitat-based methods alone. Finally, we incorporate a trait-based metric of functional diversity to identify where impacts to functionally unique species might pose greater risk to community structure and ecosystem integrity. These complementary lenses of species, function, and habitat provide a richer understanding of threats to marine biodiversity to help inform efforts to meet conservation targets and ensure sustainability of nature's contributions to people.
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Affiliation(s)
- Casey C. O’Hara
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, Santa Barbara, California, United States of America
| | - Melanie Frazier
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, Santa Barbara, California, United States of America
| | - Mireia Valle
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, Santa Barbara, California, United States of America
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
- Basque Centre for Climate Change (BC3), Scientific Campus of the University of the Basque Country (UPV-EHU), Leioa, Spain
| | - Nathalie Butt
- The Nature Conservancy, South Brisbane, Queensland, Australia
- Centre for Biodiversity and Conservation Science, School of the Environment, The University of Queensland, Brisbane, Queensland, Australia
| | - Kristin Kaschner
- Department of Biometry and Environmental System Analysis, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Carissa Klein
- Centre for Biodiversity and Conservation Science, School of the Environment, The University of Queensland, Brisbane, Queensland, Australia
| | - Benjamin S. Halpern
- National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, Santa Barbara, California, United States of America
- Bren School of Environmental Science & Management, University of California, Santa Barbara, Santa Barbara, California, United States of America
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12
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Li J, Wang S, Liu P, Peng J, Liu X, Sun Q, Zhou B, Lei K. Environmental DNA metabarcoding reveals the influence of environmental heterogeneity on microeukaryotic plankton in the offshore waters of East China Sea. ENVIRONMENTAL RESEARCH 2024; 262:119921. [PMID: 39233035 DOI: 10.1016/j.envres.2024.119921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 08/17/2024] [Accepted: 09/02/2024] [Indexed: 09/06/2024]
Abstract
Microeukaryotic plankton are essential to marine food webs and biogeochemical cycles, with coastal seas playing a critical role in aquatic ecosystems. Understanding the diversity of microeukaryotic plankton, deciphering their community structure and succession patterns, and identifying the key factors influencing these dynamics remain central challenges in coastal ecology. In this study, we examine patterns of biodiversity, community structure, and co-occurrence using environmental DNA (eDNA)-based methods. Our results show a linear correlation between α-diversity and distance from the shore, with nutrient-related factors, especially inorganic nitrogen, being the primary determinants of the spatial distribution of plankton communities. Alternation of coastal habitat have shifted the succession patterns of coastal eukaryotic plankton communities from stochastic to deterministic processes. Additionally, our observations indicate that the topology and structure of eukaryotic plankton symbiotic patterns and networks are significantly influenced by environmental heterogeneity such as nutrients, which increase the vulnerability and decrease the stability of offshore ecological networks. Overall, our study demonstrates that the distribution of microeukaryotic plankton communities is influenced by factors related to environmental heterogeneity.
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Affiliation(s)
- Jiangnan Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266000, China; Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Shuping Wang
- Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Pengxia Liu
- Ecological Environment Monitoring and Scientific Research Center, Taihu Basin & East China Sea Ecological Environment Supervision and Administration Bureau, Ministry of Ecology and Environment, Shanghai, 200125, China
| | - Jiayu Peng
- Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Xinmei Liu
- Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Qianhang Sun
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266000, China; Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Bo Zhou
- Chinese Research Academy of Environmental Sciences, Beijing, 100000, China
| | - Kun Lei
- Chinese Research Academy of Environmental Sciences, Beijing, 100000, China.
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13
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Mallik A, Chakraborty P, Ramteke KK, Bhavan SG, Jaiswar AK, Nayak BB, Pal P, Bhushan S. Diet characteristics of tidal creek-associated fishes of the northeastern Arabian Sea with special reference to microplastic ingestion. CHEMOSPHERE 2024; 363:142886. [PMID: 39033860 DOI: 10.1016/j.chemosphere.2024.142886] [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: 04/18/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
The present study assessed the diet characteristics, trophic guild structure, and microplastics (MPs) ingestion by a group of fish sourced from the tidal creeks of the Mumbai coast along the Eastern Arabian Sea. The diet patterns were characterized using gastro-somatic index (GaSI), relative length of gut (RGL), diet overlap (α), diet breadth (Bi), and relative abundance of food items (%IOP), with a special emphasis on MPs contamination. The findings revealed that teleost and shrimps are the most preferred food items for these species. Whereas MPs contribute 5.50% of the total diet composition of the selected fishes. Additionally, we tried to find out the influence of fish size and dietary attributes on MP ingestion, identifying trophic level as a significant factor influencing contamination levels. Using the Polymer Hazard Index (PHI), the potential risks posed by MPs in fish samples were assessed, revealing notable discrepancies among polymers. For instance, polyvinyl chloride showed the highest PHI score of 198.75 and a hazard score reaching the highest risk category (IV), indicating substantial environmental risk. In summary, our findings highlight the impact of fish diet characteristics on MPs contamination and the varying levels of MP risks along the Mumbai coast, categorized according to polymer type from low to high risk.
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Affiliation(s)
- Abhijit Mallik
- ICAR-Central Institute of Fisheries Education, Mumbai, 400061, India.
| | - Puja Chakraborty
- ICAR-Central Institute of Fisheries Education, Mumbai, 400061, India
| | | | | | | | | | - Prasenjit Pal
- College of Fisheries, Central Agricultural University(I), 799210, India
| | - Shashi Bhushan
- ICAR-Central Institute of Fisheries Education, Mumbai, 400061, India.
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14
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Luan G, Peng Z, Zhao F, Xia J, Zou F, Xiong Y, Wang Z, Zhang Y, Wang X, Sun W. Spatiotemporal dynamics of ecosystem supply service intensity in China: Patterns, drivers, and implications for sustainable development. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 367:122042. [PMID: 39083947 DOI: 10.1016/j.jenvman.2024.122042] [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: 04/17/2024] [Revised: 07/18/2024] [Accepted: 07/27/2024] [Indexed: 08/02/2024]
Abstract
With the steady development of global economy and the rapid increase of population, it is of great significance to quantify the supply capacity of ecosystem services and reveal its driving factors for sustainable development. We quantify the ecosystem supply service intensity (ESSI) using multiple sources of natural and cultural data from 2000 to 2020. We then jointly analyze this data with the information entropy of the land to obtain the temporal and spatial evolution law of ESSI under multiple scales in China. At the same time, according to the spatial distribution of ESSI in China, the concept of China's ecosystem supply service intensity development equilibrium line (ESSIL) is innovatively put forward. The results show that the spatial distribution pattern of China's ESSI is symmetrical with the ESSIL which is nearly orthogonal to Hu Huanyong line. Because of the different regional development policies, different regions with different economic levels have different driving effects on land change. Furthermore, due to the country's large size, the primary ESSI drivers vary greatly throughout its various regions. The assessment of the ESSI changes in China from multi-scale, combined with the effects of land cover change, climate and human activities, and put forward a new pattern distribution mode of ESSI in China, which provides a new perspective for formulating ecologically sustainable development strategies in large-scale areas.
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Affiliation(s)
- Guize Luan
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming, 650500, China
| | - Zhiyan Peng
- School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
| | - Fei Zhao
- School of Earth Sciences, Yunnan University, Kunming, 650500, China; Technology Innovation Center for Natural Ecosystem Carbon Sink, Ministry of Natural Resources, Kunming, 650111, China; Department of Strategic and Advanced Interdisciplinary Research, Pengcheng Laboratory, Shenzhen, 518000, China.
| | - Jisheng Xia
- School of Earth Sciences, Yunnan University, Kunming, 650500, China; Technology Innovation Center for Natural Ecosystem Carbon Sink, Ministry of Natural Resources, Kunming, 650111, China.
| | - Fuyan Zou
- Technology Innovation Center for Natural Ecosystem Carbon Sink, Ministry of Natural Resources, Kunming, 650111, China
| | - Yinhong Xiong
- Technology Innovation Center for Natural Ecosystem Carbon Sink, Ministry of Natural Resources, Kunming, 650111, China
| | - Zhensheng Wang
- Department of Strategic and Advanced Interdisciplinary Research, Pengcheng Laboratory, Shenzhen, 518000, China
| | - Yiyang Zhang
- School of Earth Sciences, Yunnan University, Kunming, 650500, China
| | - Xinrui Wang
- School of Earth Sciences, Yunnan University, Kunming, 650500, China
| | - Wen Sun
- School of Earth Sciences, Yunnan University, Kunming, 650500, China
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15
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Heuschele J, Dinh KV, Lode T, Jager T, Borgå K. Arctic copepod copper sensitivity and comparison with Antarctic and temperate copepods. ECOTOXICOLOGY (LONDON, ENGLAND) 2024:10.1007/s10646-024-02796-2. [PMID: 39196504 DOI: 10.1007/s10646-024-02796-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Accepted: 08/13/2024] [Indexed: 08/29/2024]
Abstract
The ongoing global climate crisis increases temperatures in polar regions faster and with greater magnitude than elsewhere. The decline of Arctic sea ice opens up new passages, eventually leading to higher anthropogenic activities such as shipping, fishing, and mining. Climate change and anthropogenic activities will increase contaminant transport from temperate to Arctic regions. The shipping industry uses copper as an antifouling coating. Copper is an essential element but becomes toxic at excess concentrations, and its use may inadvertently affect non-target organisms such as copepods. Copper affects copepods by lowering reproductive output, prolonging developmental time, and causing increased mortality. As data on copper sensitivity of polar copepods at low temperatures are rare, we conducted onboard survival experiments with the Arctic region's most common copepod species (Calanus finmarchicus, C. glacialis, C. hyperboreus). Acute survival tests were done for up to 8 days on individuals in 70 ml bottles at 1 °C with nominal copper concentrations ranging from 3 to 480 μg L-1. We used a reduced General Unified Threshold model for Survival (GUTS) to analyse the data, and placed our results in the context of the few published copper sensitivity data of the Antarctic and temperate copepod species at low temperatures. The sensitivity of Cu exposure was similar between the three Calanus species. However, a model comparison suggests that the tested C. glacialis population is less sensitive than the other two species in our experiments. Compared to published data, the three Arctic species appear slightly less sensitive to copper compared to their Antarctic counterparts but more compared to their temperate ones. Our literature search revealed only a few available studies on the copper sensitivity of polar copepods. In the future, this species group will be exposed to more pollutants, which warrants more studies to predict potential risks, especially given possible interactions with environmental factors.
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Affiliation(s)
- Jan Heuschele
- Department of Biosciences, University of Oslo, P.O Box 1066, Blindern, 0316, Oslo, Norway.
| | - Khuong V Dinh
- Department of Biosciences, University of Oslo, P.O Box 1066, Blindern, 0316, Oslo, Norway
| | - Torben Lode
- Department of Biosciences, University of Oslo, P.O Box 1066, Blindern, 0316, Oslo, Norway
| | | | - Katrine Borgå
- Department of Biosciences, University of Oslo, P.O Box 1066, Blindern, 0316, Oslo, Norway
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16
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Dujon AM, Ujvari B, Tissot S, Meliani J, Rieu O, Stepanskyy N, Hamede R, Tokolyi J, Nedelcu A, Thomas F. The complex effects of modern oncogenic environments on the fitness, evolution and conservation of wildlife species. Evol Appl 2024; 17:e13763. [PMID: 39100750 PMCID: PMC11294924 DOI: 10.1111/eva.13763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/16/2024] [Accepted: 07/18/2024] [Indexed: 08/06/2024] Open
Abstract
Growing evidence indicates that human activities are causing cancer rates to rise in both human and wildlife populations. This is due to the inability of ancestral anti-cancer defences to cope with modern environmental risks. The evolutionary mismatch between modern oncogenic risks and evolved cancer defences has far-reaching effects on various biological aspects at different timeframes, demanding a comprehensive study of the biology and evolutionary ecology of the affected species. Firstly, the increased activation of anti-cancer defences leads to excessive energy expenditure, affecting other biological functions and potentially causing health issues like autoimmune diseases. Secondly, tumorigenesis itself can impact important fitness-related parameters such as competitiveness, predator evasion, resistance to parasites, and dispersal capacity. Thirdly, rising cancer risks can influence the species' life-history traits, often favoring early reproduction to offset fitness costs associated with cancer. However, this strategy has its limits, and it may not ensure the sustainability of the species if cancer risks continue to rise. Lastly, some species may evolve additional anti-cancer defences, with uncertain consequences for their biology and future evolutionary path. In summary, we argue that the effects of increased exposure to cancer-causing substances on wildlife are complex, ranging from immediate responses to long-term evolutionary changes. Understanding these processes, especially in the context of conservation biology, is urgently needed.
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Affiliation(s)
- Antoine M. Dujon
- School of Life and Environmental SciencesDeakin UniversityWaurn PondsVictoriaAustralia
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224–CNRS 5290–Université de MontpellierMontpellierFrance
| | - Beata Ujvari
- School of Life and Environmental SciencesDeakin UniversityWaurn PondsVictoriaAustralia
| | - Sophie Tissot
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224–CNRS 5290–Université de MontpellierMontpellierFrance
| | - Jordan Meliani
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224–CNRS 5290–Université de MontpellierMontpellierFrance
| | - Océane Rieu
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224–CNRS 5290–Université de MontpellierMontpellierFrance
| | - Nikita Stepanskyy
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224–CNRS 5290–Université de MontpellierMontpellierFrance
| | - Rodrigo Hamede
- School of Natural SciencesUniversity of TasmaniaHobartTasmaniaAustralia
| | - Jácint Tokolyi
- Department of Evolutionary Zoology, MTA‐DE “Momentum” Ecology, Evolution and Developmental Biology Research GroupUniversity of DebrecenDebrecenHungary
| | - Aurora Nedelcu
- Department of BiologyUniversity of new BrunswickFrederictonNew BrunswickCanada
| | - Frédéric Thomas
- School of Life and Environmental SciencesDeakin UniversityWaurn PondsVictoriaAustralia
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17
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Lear KO, Ebner BC, Fazeldean T, Bateman RL, Morgan DL. Effects of coastal development on sawfish movements and the need for marine animal crossing solutions. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024; 38:e14263. [PMID: 38578170 DOI: 10.1111/cobi.14263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/22/2023] [Accepted: 01/23/2024] [Indexed: 04/06/2024]
Abstract
Although human-made barriers to animal movement are ubiquitous across many types of ecosystems, the science behind these barriers and how to ameliorate their effects lags far behind in marine environments compared with terrestrial and freshwater realms. Using juvenile sawfish in an Australian nursery habitat as a model system, we aimed to assess the effects of a major anthropogenic development on the movement behavior of coastal species. We compared catch rates and movement behavior (via acoustic telemetry) of juvenile green sawfish (Pristis zijsron) before and after a major coastal structure was built in an important nursery habitat. Acoustic tracking and catch data showed that the development did not affect levels of sawfish recruitment in the nursery, but it did constrain movements of juveniles moving throughout the nursery, demonstrating the reluctance of shoreline-associated species to travel around large or unfamiliar coastal structures. Given the current lack of information on human-made movement barriers in the marine environment, these findings highlight the need for further research in this area, and we propose the development of and experimentation with marine animal crossings as an important area of emerging research.
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Affiliation(s)
- Karissa O Lear
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
| | - Brendan C Ebner
- Department of Primary Industries, Grafton Fisheries Centre, Grafton, New South Wales, Australia
- TropWATER, James Cook University, Townsville, Queensland, Australia
| | - Travis Fazeldean
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
| | - Rebecca L Bateman
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
| | - David L Morgan
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
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18
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Geraldi NR, Acinas SG, Alam I, Gasol JM, Fernández-de-Puelles ML, Giner CR, Hernández León S, Logares R, Massana R, Sánchez P, Bajic V, Gojobori T, Duarte CM. Assessing patterns of metazoans in the global ocean using environmental DNA. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240724. [PMID: 39144493 PMCID: PMC11321857 DOI: 10.1098/rsos.240724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/16/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024]
Abstract
Documenting large-scale patterns of animals in the ocean and determining the drivers of these patterns is needed for conservation efforts given the unprecedented rates of change occurring within marine ecosystems. We used existing datasets from two global expeditions, Tara Oceans and Malaspina, that circumnavigated the oceans and sampled down to 4000 m to assess metazoans from environmental DNA (eDNA) extracted from seawater. We describe patterns of taxonomic richness within metazoan phyla and orders based on metabarcoding and infer the relative abundance of phyla using metagenome datasets, and relate these data to environmental variables. Arthropods had the greatest taxonomic richness of metazoan phyla at the surface, while cnidarians had the greatest richness in pelagic zones. Half of the marine metazoan eDNA from metagenome datasets was from arthropods, followed by cnidarians and nematodes. We found that mean surface temperature and primary productivity were positively related to metazoan taxonomic richness. Our findings concur with existing knowledge that temperature and primary productivity are important drivers of taxonomic richness for specific taxa at the ocean's surface, but these correlations are less evident in the deep ocean. Massive sequencing of eDNA can improve understanding of animal distributions, particularly for the deep ocean where sampling is challenging.
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Affiliation(s)
- Nathan R. Geraldi
- Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | | | - Intikhab Alam
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Josep M. Gasol
- Institut de Ciències del Mar, CSIC, Barcelona, Catalunya, Spain
- Center for Marine Ecosystem Research, Edith Cowan University, Joondalup, Western Australia, Australia
| | | | - Caterina R. Giner
- Institut de Ciències del Mar, CSIC, Barcelona, Catalunya, Spain
- Institute for the Oceans and Fisheries, University of British Columbia, UBC-AERL, Vancouver, Canada
| | - Santiago Hernández León
- Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, Campus de Taliarte, Telde, Gran Canaria, Canary Islands35214, Spain
| | - Ramiro Logares
- Institut de Ciències del Mar, CSIC, Barcelona, Catalunya, Spain
| | - Ramon Massana
- Institut de Ciències del Mar, CSIC, Barcelona, Catalunya, Spain
| | - Pablo Sánchez
- Institut de Ciències del Mar, CSIC, Barcelona, Catalunya, Spain
| | - Vladimir Bajic
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Takashi Gojobori
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Carlos M. Duarte
- Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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19
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Mohanty B, Muduli PR, Das MT. Biomonitoring of petroleum hydrocarbon residues in commercially important fish and shrimp species from a tropical coastal ecosystem Chilika, India: Associated human health risk assessment. MARINE POLLUTION BULLETIN 2024; 205:116702. [PMID: 38996757 DOI: 10.1016/j.marpolbul.2024.116702] [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: 04/08/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024]
Abstract
Petroleum hydrocarbons (PHCs) residues in commercially important fish and shrimp species from Asia's largest brackish water lagoon, Chilika and their dietary risk factors like Bioaccumulation factor (BAF), Estimated dietary intake (EDI) and Exposure risk index (ERI) were investigated. The PHCs in water samples were found within the range of 2.21 to 9.41 μg/l; while in organisms, PHCs varied from 0.74 to 3.16 μg/g (wet weight). The lowest and highest PHCs concentration was observed in Etroplus suratensis (0.74 ± 0.12; crude fat 0.57 %) and Nematalosa nasus (3.16 ± 0.12; crude fat 6.43 %) respectively. From human health risk view point, the calculated BAF, EDI, ERI were within the prescribed safe limits. Our finding suggests that Nematalosa nasus can be used as biomonitor species for petroleum hydrocarbon contamination status for this ecosystem and also continuous pollution monitoring programs must be conducted by the concerned authorities to safeguard this important aquatic ecosystem.
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Affiliation(s)
- Bita Mohanty
- Department of Environmental Science, Fakir Mohan University, Vyasavihar, Balasore 756089, Odisha, India
| | - Pradipta Ranjan Muduli
- Wetland Research and Training Center, Chilika Development Authority, Barkul, Khurda 752030, Odisha, India
| | - Mihir Tanay Das
- Department of Environmental Science, Fakir Mohan University, Vyasavihar, Balasore 756089, Odisha, India; Centre of Excellence for Bioresource Management and Energy Conservation Material Development, Fakir Mohan University, Vyasavihar, Balasore 756089, Odisha, India.
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20
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Ten Brink H, van Leeuwen A. Impacts of estuarine habitat degradation on the modeled life history of marine estuarine-dependent and resident fish species. JOURNAL OF FISH BIOLOGY 2024; 105:577-602. [PMID: 39048523 DOI: 10.1111/jfb.15877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/27/2024]
Abstract
Shallow coastal and estuarine habitats play an essential role in the life cycles of many fish species, providing spawning, nursery, feeding, and migration areas. However, these ecologically valuable habitats are increasingly threatened by anthropogenic activities, causing substantial changes in both habitat availability and quality. Fish species use these shallow coastal habitats and estuaries during various life stages, leading to their categorization into guilds based on how and when they rely on these areas. This differential functional use of estuaries means that changes to these habitats may affect each guild differently. To understand the impact of estuarine habitat degradation on fish populations, it is therefore necessary to consider the full life cycle of fish and when they rely on these coastal habitats. Here, we use conceptual size-structured population models to study how estuarine habitat degradation affects two functionally different guilds. We use these models to predict how reduced food productivity in the estuary affects the demographic rates and population dynamics of these groups. Specifically, we model estuarine residents, which complete their entire life cycle in estuaries, and marine estuarine-dependent species, which inhabit estuaries during early life before transitioning offshore. We find that total fish biomass for both guilds decreases with decreasing food productivity. However, the density of juveniles of the marine estuarine-dependent guild can, under certain conditions, increase in the estuary. This occurs due to a shift in the population biomass distribution over different life stages and a simultaneous shift in which life stage is most limited by food. At the individual level, somatic growth of juveniles belonging to the estuarine-dependent guild decreased with lower food supply in the estuary, due to increased competition for food. The somatic growth rates of fish belonging to the resident guild were largely unaffected by low food supply, as the total fish density decreased at the same time and therefore the per-capita food availability was similar. These outcomes challenge the assumption that responses to habitat degradation are similar between fish guilds. Our study highlights the need to assess not only fish biomass but also size distributions, survival, and somatic growth rates for a comprehensive understanding of the effects of habitat degradation on fish populations. This understanding is crucial not only for estuary fish communities but also for successful conservation and management of commercially harvested offshore population components.
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Affiliation(s)
- Hanna Ten Brink
- Department of Coastal Systems (COS), Royal Netherlands Institute for Sea Research (NIOZ), Den Burg, The Netherlands
| | - Anieke van Leeuwen
- Department of Coastal Systems (COS), Royal Netherlands Institute for Sea Research (NIOZ), Den Burg, The Netherlands
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21
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Lima GDS, Pedrobom JH, Suarez CA, Torres-Florez JP, Vidal LG, Domit C, Menegario AA. Bioaccumulation of trace elements in marine mammals: New data and transplacental transfer on threatened species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174854. [PMID: 39032751 DOI: 10.1016/j.scitotenv.2024.174854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Coastal areas are affected by urban, industrial and agriculture pollutants runoff, wastewater and stormwater discharges, making this environment the final repository of chemical contaminants. These contaminants have the potential to spread out to the entire food chain, impacting marine life and the quality of their habitat. In this aspect, the concept of marine mammals as bioindicators provides an approach to the degree of contamination in the environment and to the identification and management of multiple sources of contaminants. The present study analyzed several elements like As, Ba, Cd, Cr, Cu, Hg, Mn, Mo, Ni, Pb, V and Zn in liver tissue from two dolphin species: Sotalia guianensis, a near-threatened species, and the vulnerable Pontoporia blainvillei. In the study, we also investigated if dolphins (population) recorded using the heaviest urban areas have higher concentrations of contaminants in their tissues. Dolphin samples (n = 40 S. guianensis; n = 97 P. blainvillei) were collected by daily monitoring carried out by Santos Basin Beach Monitoring Project (PMP-BS), from stranded individuals found in São Paulo state. The Spearman's rank correlation showed distinct correlations in the accumulation of trace elements by both species, indicating different sources of exposure to the elements studied or distinct biochemical processes between species. Interspecific and intraspecific variations were observed, possibly related to the individual distribution and feeding habits. Correlations were observed between age and concentrations of trace elements, positive for Cd, Hg and Mo. Finally, our findings indicate high levels of Cu, Zn, and concentrations of As, V and Hg in fetuses, in particular, an analysis was performed on a fetus found inside a stranded individual, indicating placental transfer as the first route of exposure for some elements.
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Affiliation(s)
- Guilherme Dos Santos Lima
- Environmental Studies Center (CEA), São Paulo State University (UNESP), Rio Claro, SP 13506-900, Brazil; Postgraduate Program in Geosciences and Environment, Institute of Geosciences and Exact Sciences (IGCE), Rio Claro, SP 13506-900, Brazil
| | - Jorge Henrique Pedrobom
- Environmental Studies Center (CEA), São Paulo State University (UNESP), Rio Claro, SP 13506-900, Brazil; Nova Analitica Company, Diadema, SP 09941-202, Brazil
| | - Carlos Alfredo Suarez
- Environmental Studies Center (CEA), São Paulo State University (UNESP), Rio Claro, SP 13506-900, Brazil
| | - Juan Pablo Torres-Florez
- Department of Marine Research, Fujairah Research Centre, Sakamkam Road, Fujairah, United Arab Emirates; Centro Ballena Azul / Blue Whale Center, Valdivia, Chile
| | - Lara Gama Vidal
- Laboratory of Ecology and Conservation, Federal University of Paraná (UFPR), Pontal do Paraná, PR 83255-000, Brazil; Postgraduate Program in Coastal and Oceanic Systems (PGSISCO), Federal University of Paraná (UFPR), Pontal do Paraná, PR 83255-000, Brazil
| | - Camila Domit
- Laboratory of Ecology and Conservation, Federal University of Paraná (UFPR), Pontal do Paraná, PR 83255-000, Brazil; Postgraduate Program in Coastal and Oceanic Systems (PGSISCO), Federal University of Paraná (UFPR), Pontal do Paraná, PR 83255-000, Brazil
| | - Amauri Antonio Menegario
- Environmental Studies Center (CEA), São Paulo State University (UNESP), Rio Claro, SP 13506-900, Brazil; Postgraduate Program in Geosciences and Environment, Institute of Geosciences and Exact Sciences (IGCE), Rio Claro, SP 13506-900, Brazil.
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22
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Borja A, Berg T, Gundersen H, Hagen AG, Hancke K, Korpinen S, Leal MC, Luisetti T, Menchaca I, Murray C, Piet G, Pitois S, Rodríguez-Ezpeleta N, Sample JE, Talbot E, Uyarra MC. Innovative and practical tools for monitoring and assessing biodiversity status and impacts of multiple human pressures in marine systems. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:694. [PMID: 38963575 DOI: 10.1007/s10661-024-12861-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/22/2024] [Indexed: 07/05/2024]
Abstract
Human activities at sea can produce pressures and cumulative effects on ecosystem components that need to be monitored and assessed in a cost-effective manner. Five Horizon European projects have joined forces to collaboratively increase our knowledge and skills to monitor and assess the ocean in an innovative way, assisting managers and policy-makers in taking decisions to maintain sustainable activities at sea. Here, we present and discuss the status of some methods revised during a summer school, aiming at better management of coasts and seas. We include novel methods to monitor the coastal and ocean waters (e.g. environmental DNA, drones, imaging and artificial intelligence, climate modelling and spatial planning) and innovative tools to assess the status (e.g. cumulative impacts assessment, multiple pressures, Nested Environmental status Assessment Tool (NEAT), ecosystem services assessment or a new unifying approach). As a concluding remark, some of the most important challenges ahead are assessing the pros and cons of novel methods, comparing them with benchmark technologies and integrating these into long-standing time series for data continuity. This requires transition periods and careful planning, which can be covered through an intense collaboration of current and future European projects on marine biodiversity and ecosystem health.
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Affiliation(s)
- Angel Borja
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia, Portualdea S/N, 20110, Pasaia, Spain.
| | - Torsten Berg
- MariLim Aquatic Research GmbH, 24232, Schönkirchen, Germany
| | - Hege Gundersen
- Norwegian Institute for Water Research (NIVA), Oslo, Norway
| | | | - Kasper Hancke
- Norwegian Institute for Water Research (NIVA), Oslo, Norway
| | - Samuli Korpinen
- Finnish Environment Institute, Marine Research Centre, Helsinki, Finland
| | - Miguel C Leal
- Science Crunchers, Scitation Lda, TecLabs - Campus da FCUL, 1749-016, Lisbon, Portugal
| | | | - Iratxe Menchaca
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia, Portualdea S/N, 20110, Pasaia, Spain
| | - Ciaran Murray
- NIVA Denmark Water Research, 2300, Copenhagen S, Denmark
| | - GerJan Piet
- Wageningen University and Research, Wageningen Marine Research, P.O. Box 57, 1780 AB, Den Helder, the Netherlands
| | | | - Naiara Rodríguez-Ezpeleta
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Txatxarramendi Ugartea Z/G, 48395, Sukarrieta, Spain
| | - James E Sample
- Norwegian Institute for Water Research (NIVA), Oslo, Norway
| | - Elizabeth Talbot
- Plymouth Marine Laboratory, Prospect Place, Plymouth, PL1 3DH, UK
| | - María C Uyarra
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia, Portualdea S/N, 20110, Pasaia, Spain
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23
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Della Torre C, Villa S, Chiarore A, Cannavacciuolo A, Rizzi C, Musco L, Nigro L, Munari M. Biomonitoring of human activities recovery following lockdown in a highly touristic Mediterranean Island using Mytilus galloprovincialis. MARINE POLLUTION BULLETIN 2024; 204:116533. [PMID: 38833949 DOI: 10.1016/j.marpolbul.2024.116533] [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: 04/21/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/06/2024]
Abstract
Coastal waters face significant anthropogenic stress, particularly from tourism, exacerbating pollution, especially in areas like touristic islands. Ischia, the largest island in the Gulf of Naples and part of the Regno di Nettuno Marine Protected Area, suffers from pollution due to tourism and maritime traffic. During the initial SARS-CoV-2 lockdown from March to June 2020, Ischia was isolated, providing a unique opportunity to study pollutant release and its impact on coastal ecosystems. Adult Mytilus galloprovincialis mussels were transplanted to three sites on the island for active biomonitoring. Accumulation of chemicals in tissues and biomarkers related to metabolism, detoxification, and oxidative stress were measured. Results indicated that pollutants from daily activities entered the sea, affecting filter feeders. Translocated organisms showed modulated metabolic functions and biochemical changes, highlighting coastal vulnerability and calling for conservation efforts.
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Affiliation(s)
- Camilla Della Torre
- Department of Biosciences, University of Milan, Italy; Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Sara Villa
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy
| | - Antonia Chiarore
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
| | | | - Cristiana Rizzi
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, Italy
| | - Luigi Musco
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy; Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, Italy; NBFC, National Biodiversity Future Center, Palermo, Italy
| | - Lara Nigro
- Department of Biosciences, University of Milan, Italy
| | - Marco Munari
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy; Department of Biology, Stazione Idrobiologica 'Umberto d'Ancona', University of Padova, Chioggia, Italy.
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24
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Smith CS, Zhang YS, Hensel MJS, Pennings SC, Silliman BR. Long-term data reveal that grazer density mediates climatic stress in salt marshes. Ecology 2024; 105:e4323. [PMID: 38769601 DOI: 10.1002/ecy.4323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/22/2024] [Accepted: 04/09/2024] [Indexed: 05/22/2024]
Abstract
Understanding how climate and local stressors interact is paramount for predicting future ecosystem structure. The effects of multiple stressors are often examined in small-scale and short-term field experiments, limiting understanding of the spatial and temporal generality of the findings. Using a 22-year observational dataset of plant and grazer abundance in a southeastern US salt marsh, we analyzed how changes in drought and grazer density combined to affect plant biomass. We found: (1) increased drought severity and higher snail density both correlated with lower plant biomass; (2) drought and snail effects interacted additively; and, (3) snail effects had a threshold, with additive top-down effects only occurring when snails were present at high densities. These results suggest that the emergence of multiple stressor effects can be density dependent, and they validate short-term experimental evidence that consumers can augment environmental stress. These findings have important implications for predicting future ecosystem structure and managing natural ecosystems.
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Affiliation(s)
- Carter S Smith
- Nicholas School of the Environment, Duke University Marine Lab, Beaufort, North Carolina, USA
| | - Y Stacy Zhang
- Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, USA
| | - Marc J S Hensel
- Department of Biological Sciences, Virginia Institute of Marine Sciences, College of William and Mary, Gloucester, Virginia, USA
- Nature Coast Biological Station, University of Florida, Cedar Key, Florida, USA
| | - Steven C Pennings
- Department of Biology and Biochemistry, University of Houston, Houston, Texas, USA
| | - Brian R Silliman
- Nicholas School of the Environment, Duke University Marine Lab, Beaufort, North Carolina, USA
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25
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Fleury AG, O’Hara CC, Butt N, Restrepo J, Halpern BS, Klein CJ, Kuempel CD, Gaynor KM, Bentley LK, Richardson AJ, Dunn DC. Spatial and life history variation in a trait-based species vulnerability and impact model. PLoS One 2024; 19:e0305950. [PMID: 38905300 PMCID: PMC11192397 DOI: 10.1371/journal.pone.0305950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 06/09/2024] [Indexed: 06/23/2024] Open
Abstract
Anthropogenic pressures threaten biodiversity, necessitating conservation actions founded on robust ecological models. However, prevailing models inadequately capture the spatiotemporal variation in environmental pressures faced by species with high mobility or complex life histories, as data are often aggregated across species' life histories or spatial distributions. We highlight the limitations of static models for dynamic species and incorporate life history variation and spatial distributions for species and stressors into a trait-based vulnerability and impact model. We use green sea turtles in the Greater Caribbean Region to demonstrate how vulnerability and anthropogenic impact for a dynamic species change across four life stages. By incorporating life stages into a trait-based vulnerability model, we observed life stage-specific vulnerabilities that were otherwise unnoticed when using an aggregated trait value set. Early life stages were more vulnerable to some stressors, such as inorganic pollution or marine heat waves, and less vulnerable to others, such as bycatch. Incorporating spatial distributions of stressors and life stages revealed impacts differ for each life stage across spatial areas, emphasizing the importance of stage-specific conservation measures. Our approach showcases the importance of incorporating dynamic processes into ecological models and will enable better and more targeted conservation actions for species with complex life histories and high mobility.
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Affiliation(s)
- Aharon G. Fleury
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
| | - Casey C. O’Hara
- Bren School of Environmental Science and Management, University of California–Santa Barbara, Santa Barbara, California, United States of America
- National Center for Ecological Analysis and Synthesis, University of California–Santa Barbara, Santa Barbara, California, United States of America
| | - Nathalie Butt
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
| | - Jaime Restrepo
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
| | - Benjamin S. Halpern
- Bren School of Environmental Science and Management, University of California–Santa Barbara, Santa Barbara, California, United States of America
- National Center for Ecological Analysis and Synthesis, University of California–Santa Barbara, Santa Barbara, California, United States of America
| | - Carissa J. Klein
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
| | - Caitlin D. Kuempel
- Australian Rivers Institute, Coastal and Marine Research Centre, Griffith University, Nathan, Queensland, Australia
| | - Kaitlyn M. Gaynor
- Departments of Zoology and Botany, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lily K. Bentley
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
| | - Anthony J. Richardson
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
- CSIRO Environment, Queensland Biosciences Precinct, St Lucia, Queensland, Australia
| | - Daniel C. Dunn
- Centre for Biodiversity and Conservation Science, The School of the Environment, The University of Queensland, St. Lucia, Queensland, Australia
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26
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Wang B, Hua L, Al-Mohaimeed AM, Zhao N. Ocean carbon emission prediction and management measures based on artificial intelligence remote sensing estimation in the context of carbon neutrality. ENVIRONMENTAL RESEARCH 2024; 251:118591. [PMID: 38428561 DOI: 10.1016/j.envres.2024.118591] [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: 10/13/2023] [Revised: 02/08/2024] [Accepted: 02/27/2024] [Indexed: 03/03/2024]
Abstract
With rapid economic development, the gradual deterioration of the natural environment has posed unprecedented challenges to human social civilization. The marine economy, as an important part of economic development, is the breakthrough of economic transformation for many coastal countries. Additionally, green development and environmental impact assessment have become the focus of research in these countries. This study employs remote sensing technology, an efficient observational method, to significantly enhance the efficiency of ocean information observation. It investigates ocean carbon emissions within the framework of carbon neutrality. First, we identified the ships along the coastline based on marine remote sensing information through the YOLO (you only look once) framework. Second, we applied the LSTM (long short-term memory) method to combine the target identification results and the historical data of carbon emissions to complete the corresponding carbon emission data fitting. Finally, carbon emission data from the past three years in the offshore area of Dalian were used to make accurate predictions. The results suggested that the recognition rate of the proposed target detection method could reach 88%, and the LSTM method has shown the best performance in terms of absolute error for the subsequent short-term carbon emission prediction. This framework not only provides essential technical support for analyzing remote sensing information within the context of carbon neutrality but also introduces innovative insights for carbon emission prediction.
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Affiliation(s)
- Bin Wang
- School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
| | - Lijuan Hua
- CMA Earth System Modeling and Prediction Centre, Beijing 100081, China; State Key Laboratory of Severe Weather (LASW), Chinese Academy of Meteorological Sciences, Beijing 100081, China; Key Laboratory of Earth System Modeling and Prediction China Meteorological Administration, Beijing 100081, China
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Ning Zhao
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
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27
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Gragnolati M, Rolim FA, Pereira-Filho GH, Athayde ACS, Ciotti ÁM, Motta FS. Vertical structure of reef fish assemblages and light penetration reveal new boundaries of mesophotic ecosystems in the subtropical Southwestern Atlantic. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106527. [PMID: 38688110 DOI: 10.1016/j.marenvres.2024.106527] [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: 09/26/2023] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
In the Southwest Atlantic, fisheries and in situ observations suggest that mesophotic reefs occur further south than has been reported in the literature, and a description of these subtropical regions is still lacking. We used Baited Remote Underwater stereo-Videos to explore unrevealed patterns in the vertical structure of fish assemblages on subtropical Atlantic reefs, contrasting shallow and mesophotic habitats. Our data on species turnover and light penetration reveal that in the subtropical Atlantic, the boundaries between shallow and mesophotic habitats occur at depths of 18 m, which is shallower than most previous studies have shown. Generalized additive mixed models identified different environmental and management factors as important predictor variables that explain distribution of fish assemblages' attributes. Besides adding new evidence about mesophotic limits, we described variations in the vertical structure of fish assemblages, providing important information for the description and conservation of mesophotic environments in subtropical regions.
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Affiliation(s)
- Maisha Gragnolati
- Laboratório de Ecologia e Conservação Marinha (LABECMar), Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Dr. Carvalho de Mendonça, 144, 11070-100, Santos, São Paulo, Brazil.
| | - Fernanda A Rolim
- Laboratório de Ecologia e Conservação Marinha (LABECMar), Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Dr. Carvalho de Mendonça, 144, 11070-100, Santos, São Paulo, Brazil
| | - Guilherme H Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha (LABECMar), Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Dr. Carvalho de Mendonça, 144, 11070-100, Santos, São Paulo, Brazil
| | - Ana Clara S Athayde
- Laboratório de Ecologia e Conservação Marinha (LABECMar), Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Dr. Carvalho de Mendonça, 144, 11070-100, Santos, São Paulo, Brazil
| | - Áurea M Ciotti
- Aquarela Lab, Rodovia Manoel Hypólito do Rego, Km 131, 50 S/N, Centro de Biologia Marinha, Universidade de São Paulo, 11600-000, São Sebastião, São Paulo, Brazil
| | - Fabio S Motta
- Laboratório de Ecologia e Conservação Marinha (LABECMar), Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Dr. Carvalho de Mendonça, 144, 11070-100, Santos, São Paulo, Brazil.
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28
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Kawiyani R, Ben-Hasan A, Mohsen K, Almojil D. Status, threats, and conservation considerations of selected marine habitats and organisms in the Arabian/Persian Gulf. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106556. [PMID: 38761491 DOI: 10.1016/j.marenvres.2024.106556] [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: 12/02/2023] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Many studies indicated that marine habitats and organisms in the Arabian/Persian Gulf ('Gulf') are broadly deteriorating. However, this likely results from the generalization of a few declining habitats or organisms in some locations. Here, we conduct a review to evaluate the status of selected habitats (mangroves, seagrasses, and coral reefs) and organisms (exploited bony fish, sharks, rays, dolphins, whales, and dugongs) and identify major threats to them in each Gulf country (except Iraq and Oman). We show that out of 52 habitats and organisms in the six countries, the predominant status (63.5%) is "Data-deficient", followed by "Decline" (21.2%) and "Increase-stable" (15.4%). The major threats to these habitats and organisms are coastal development, desalination plants, climate change, and fishing. However, our findings differentiate that some of these threats are causing severe degradation (i.e., have "Observed" impacts) while other threats, such as desalination plants, have potential impacts that are derived from laboratory experiments or modelling work. Our results can be used to guide conservation efforts in the region.
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Affiliation(s)
- Reem Kawiyani
- Marine Science Department, College of Science, Kuwait University, Kuwait.
| | | | - Kawthar Mohsen
- Marine Science Department, College of Science, Kuwait University, Kuwait
| | - Dareen Almojil
- New York University Abu Dhabi, Saadiyat Island, Abu Dhabi, United Arab Emirates
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29
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Zhang Z, Zhang Q, Chen B, Yu Y, Wang T, Xu N, Fan X, Penuelas J, Fu Z, Deng Y, Zhu YG, Qian H. Global biogeography of microbes driving ocean ecological status under climate change. Nat Commun 2024; 15:4657. [PMID: 38822036 PMCID: PMC11143227 DOI: 10.1038/s41467-024-49124-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 05/23/2024] [Indexed: 06/02/2024] Open
Abstract
Microbial communities play a crucial role in ocean ecology and global biogeochemical processes. However, understanding the intricate interactions among diversity, taxonomical composition, functional traits, and how these factors respond to climate change remains a significant challenge. Here, we propose seven distinct ecological statuses by systematically considering the diversity, structure, and biogeochemical potential of the ocean microbiome to delineate their biogeography. Anthropogenic climate change is expected to alter the ecological status of the surface ocean by influencing environmental conditions, particularly nutrient and oxygen contents. Our predictive model, which utilizes machine learning, indicates that the ecological status of approximately 32.44% of the surface ocean may undergo changes from the present to the end of this century, assuming no policy interventions. These changes mainly include poleward shifts in the main taxa, increases in photosynthetic carbon fixation and decreases in nutrient metabolism. However, this proportion can decrease significantly with effective control of greenhouse gas emissions. Our study underscores the urgent necessity for implementing policies to mitigate climate change, particularly from an ecological perspective.
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Affiliation(s)
- Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, 312000, PR China
| | - Bingfeng Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Yitian Yu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Tingzhang Wang
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, 310012, PR China
| | - Nuohan Xu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
- College of Chemistry & Chemical Engineering, Shaoxing University, Shaoxing, 312000, PR China
| | - Xiaoji Fan
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, 310012, PR China
| | - Josep Penuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, 08193, Barcelona, Catalonia, Spain
- CREAF, Campus Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Catalonia, Spain
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Ye Deng
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China
| | - Yong-Guan Zhu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 100085, Beijing, PR China
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China.
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Lombó M, Giommi C, Zarantoniello M, Chemello G. A Pretty Kettle of Fish: A Review on the Current Challenges in Mediterranean Teleost Reproduction. Animals (Basel) 2024; 14:1597. [PMID: 38891644 PMCID: PMC11171123 DOI: 10.3390/ani14111597] [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: 05/06/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
The Mediterranean region is facing several environmental changes and pollution issues. Teleosts are particularly sensitive to these challenges due to their intricate reproductive biology and reliance on specific environmental cues for successful reproduction. Wild populations struggle with the triad of climate change, environmental contamination, and overfishing, which can deeply affect reproductive success and population dynamics. In farmed species, abiotic factors affecting reproduction are easier to control, whereas finding alternatives to conventional diets for farmed teleosts is crucial for enhancing broodstock health, reproductive success, and the sustainability of the aquaculture sector. Addressing these challenges involves ongoing research into formulating specialized diets, optimizing feeding strategies, and developing alternative and sustainable feed ingredients. To achieve a deeper comprehension of these challenges, studies employing model species have emerged as pivotal tools. These models offer advantages in understanding reproductive mechanisms due to their well-defined physiology, genetic tractability, and ease of manipulation. Yet, while providing invaluable insights, their applicability to diverse species remains constrained by inherent variations across taxa and oversimplification of complex environmental interactions, thus limiting the extrapolation of the scientific findings. Bridging these gaps necessitates multidisciplinary approaches, emphasizing conservation efforts for wild species and tailored nutritional strategies for aquaculture, thereby fostering sustainable teleost reproduction in the Mediterranean.
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Affiliation(s)
- Marta Lombó
- Department of Life and Environmental Sciences (DiSVA), Università Politecnica delle Marche, 60131 Ancona, Italy; (M.L.); (C.G.)
- INBB—Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
- Department of Molecular Biology, Faculty of Biology and Environmental Sciences, Universidad de León, 24071 León, Spain
| | - Christian Giommi
- Department of Life and Environmental Sciences (DiSVA), Università Politecnica delle Marche, 60131 Ancona, Italy; (M.L.); (C.G.)
- INBB—Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
| | - Matteo Zarantoniello
- Department of Life and Environmental Sciences (DiSVA), Università Politecnica delle Marche, 60131 Ancona, Italy; (M.L.); (C.G.)
| | - Giulia Chemello
- Department of Life and Environmental Sciences (DiSVA), Università Politecnica delle Marche, 60131 Ancona, Italy; (M.L.); (C.G.)
- INBB—Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
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Jacquemont J, Loiseau C, Tornabene L, Claudet J. 3D ocean assessments reveal that fisheries reach deep but marine protection remains shallow. Nat Commun 2024; 15:4027. [PMID: 38773096 PMCID: PMC11109251 DOI: 10.1038/s41467-024-47975-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 04/17/2024] [Indexed: 05/23/2024] Open
Abstract
The wave of new global conservation targets, the conclusion of the High Seas Treaty negotiations, and the expansion of extractive use into the deep sea call for a paradigm shift in ocean conservation. The current reductionist 2D representation of the ocean to set targets and measure impacts will fail at achieving effective biodiversity conservation. Here, we develop a framework that overlays depth realms onto marine ecoregions to conduct the first three-dimensional spatial analysis of global marine conservation achievements and fisheries footprint. Our novel approach reveals conservation gaps of mesophotic, rariphotic, and abyssal depths and an underrepresentation of high protection levels across all depths. In contrast, the 3D footprint of fisheries covers all depths, with benthic fishing occurring down to the lower bathyal and mesopelagic fishing peaking in areas overlying abyssal depths. Additionally, conservation efforts are biased towards areas where the lowest fishing pressures occur, compromising the effectiveness of the marine conservation network. These spatial mismatches emphasize the need to shift towards 3D thinking to achieve ocean sustainability.
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Affiliation(s)
- Juliette Jacquemont
- School of Aquatic and Fishery Sciences, University of Washington, 1122 NE Boat St, Seattle, WA, USA.
- National Center for Scientific Research, PSL Université Paris, CRIOBE, CNRS-EPHE-UPVD, Maison de l'Océan, 195 rue Saint-Jacques, Paris, France.
| | - Charles Loiseau
- National Center for Scientific Research, PSL Université Paris, CRIOBE, CNRS-EPHE-UPVD, Maison de l'Océan, 195 rue Saint-Jacques, Paris, France
| | - Luke Tornabene
- School of Aquatic and Fishery Sciences, University of Washington, 1122 NE Boat St, Seattle, WA, USA
| | - Joachim Claudet
- National Center for Scientific Research, PSL Université Paris, CRIOBE, CNRS-EPHE-UPVD, Maison de l'Océan, 195 rue Saint-Jacques, Paris, France.
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Henderson CJ, Gilby BL, Turschwell MP, Goodridge Gaines LA, Mosman JD, Schlacher TA, Borland HP, Olds AD. Long term declines in the functional diversity of sharks in the coastal oceans of eastern Australia. Commun Biol 2024; 7:611. [PMID: 38773323 PMCID: PMC11109089 DOI: 10.1038/s42003-024-06308-0] [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: 01/15/2024] [Accepted: 05/08/2024] [Indexed: 05/23/2024] Open
Abstract
Human impacts lead to widespread changes in the abundance, diversity and traits of shark assemblages, altering the functioning of coastal ecosystems. The functional consequences of shark declines are often poorly understood due to the absence of empirical data describing long-term change. We use data from the Queensland Shark Control Program in eastern Australia, which has deployed mesh nets and baited hooks across 80 beaches using standardised methodologies since 1962. We illustrate consistent declines in shark functional richness quantified using both ecological (e.g., feeding, habitat and movement) and morphological (e.g., size, morphology) traits, and this corresponds with declining ecological functioning. We demonstrate a community shift from targeted apex sharks to a greater functional richness of non-target species. Declines in apex shark functional richness and corresponding changes in non-target species may lead to an anthropogenically induced trophic cascade. We suggest that repairing diminished shark populations is crucial for the stability of coastal ecosystems.
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Affiliation(s)
- Christopher J Henderson
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia.
| | - Ben L Gilby
- School of Science, Technology and Engineering, University of the Sunshine Coast, Petrie, QLD, 4558, Australia
| | - Mischa P Turschwell
- Coastal and Marine Research Centre, Australian Rivers Institute, Griffith University, Nathan, QLD, 4111, Australia
| | - Lucy A Goodridge Gaines
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Jesse D Mosman
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Thomas A Schlacher
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Hayden P Borland
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Andrew D Olds
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
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Luo X, Fu W, Li L, Qin Z, Wan H, Zhang Z, Zhang Q. The complete chloroplast genome sequence of Hydrocotyle vulgaris L. (Araliaceae). Mitochondrial DNA B Resour 2024; 9:647-651. [PMID: 38770144 PMCID: PMC11104692 DOI: 10.1080/23802359.2024.2349333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/24/2024] [Indexed: 05/22/2024] Open
Abstract
Hydrocotyle vulgaris is a perennial wetland clonal plant in the Araliaceae family, which was introduced to China as an ornamental plant in the 1990s. Although H. vulgaris is now considered a potential invasiveness species in China, it also plays a significant role in the remediation of water pollution. Here, we reported its complete chloroplast genome and analyzed the basic characteristics. The chloroplast genome was 153,165 bp in length, including a pair of inverted repeat (IR) regions of 25,072 bp separated by a large single-copy (LSC) region of 84,291 bp and a small single-copy (SSC) region of 18,730 bp. The H. vulgaris chloroplast genome contained 132 predicted genes, and its overall GC content was 37.60%. Phylogenetic analysis revealed that H. vulgaris was closely related to H. verticillata. The H. vulgaris chloroplast genome presented in this study will lay a foundation for further genetic and genomic studies of the genus Hydrocotyle.
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Affiliation(s)
- Xingwu Luo
- College of Biological and Food Engineering, Hubei University for Nationalities, Enshi, China
| | - Wei Fu
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
| | - Lin Li
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
| | - Zhanghui Qin
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
| | - Haiying Wan
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
| | - Zhexian Zhang
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
| | - Qiaohui Zhang
- Enshi Tujia and Miao Autonomous Prefecture Academy of Agricultural Sciences, Enshi, China
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Helias M, Grall J, Jardim VL, Toumi C, Burel T. Changes in maerl-associated macroalgal community dynamics as evidence of anthropogenic pressure. ANNALS OF BOTANY 2024; 133:1025-1040. [PMID: 38502708 PMCID: PMC11089261 DOI: 10.1093/aob/mcae042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/18/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND AND AIMS Maerl-associated communities have received considerable attention due to their uniqueness, biodiversity and functional importance. Although the impacts of human activities are well documented for maerl-associated macrofauna, the spatio-temporal variations of macroalgae have comparatively been neglected, and the drivers that influence their dynamics are poorly known. We investigate the links between maerl-associated macroalgal communities, anthropogenic pressures and environmental conditions, and hypothesize that sites under human pressure would exhibit different dynamics when compared to reference sites. METHODS To better understand community variation through space and time, four subtidal maerl beds under different pressures were consistently monitored over one year in the bay of Brest, Brittany, France. Both macroalgae community monitoring and environmental data were acquired through field sampling and available models. KEY RESULTS Higher macroalgal biomass was observed within eutrophic sites, especially in summer (more than ten times higher than in the Unimpacted site), caused by free-living forms of opportunistic red macroalgae. The Dredged site also exhibited distinct macroalgal communities during summer from the Unimpacted site. Nutrient concentrations and seasonality proved to be key factors affecting the macroalgal community composition, although dredging and its effects on granulometry also had a strong influence. Over the long term, fewer than half of the species identified during historical surveys were found, indicating major temporal changes. CONCLUSIONS Human pressures have strong impacts on maerl-associated macroalgal communities. Nutrient concentrations and dredging pressure appear as the main anthropogenic factors shaping maerl-associated macroalgal communities. Additionally, our results suggest historical changes in maerl-associated macroalgal communities over 25 years in response to changes in local human pressure management. This study suggests that maerl-associated macroalgal communities could be used as indicators of anthropogenically driven changes in this habitat.
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Affiliation(s)
- Mathieu Helias
- UMS 3113, Observatoire Marin, Université de Brest, Plouzané, Brittany, France
| | - Jacques Grall
- Université de Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, Brittany, France
- UMS 3113, Observatoire Marin, Université de Brest, Plouzané, Brittany, France
| | - Victor L Jardim
- Université de Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, Brittany, France
| | - Chirine Toumi
- Université de Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, Brittany, France
| | - Thomas Burel
- Université de Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, Brittany, France
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Wang H, Liu F, Wang M, Bettarel Y, Eissler Y, Chen F, Kan J. Planktonic eukaryotes in the Chesapeake Bay: contrasting responses of abundant and rare taxa to estuarine gradients. Microbiol Spectr 2024; 12:e0404823. [PMID: 38606959 PMCID: PMC11064499 DOI: 10.1128/spectrum.04048-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 03/15/2024] [Indexed: 04/13/2024] Open
Abstract
Phytoplankton are important drivers of aquatic ecosystem function and environmental health. Their community compositions and distributions are directly impacted by environmental processes and human activities, including in the largest estuary in North America, the Chesapeake Bay. It is crucial to uncover how planktonic eukaryotes play fundamental roles as primary producers and trophic links and sustain estuarine ecosystems. In this study, we investigated the detailed community structure and spatiotemporal variations of planktonic eukaryotes in the Chesapeake Bay across space and time for three consecutive years. A clear seasonal and spatial shift of total, abundant, and rare planktonic eukaryotes was evident, and the pattern recurred interannually. Multiple harmful algal species have been identified in the Bay with varied distribution patterns, such as Karlodinium, Heterosigma akashiwo, Protoperidinium sp., etc. Compared to abundant taxa, rare subcommunities were more sensitive to environmental disturbance in terms of richness, diversity, and distribution. The combined effects of temporal variation (13.3%), nutrient availability (10.0%), and spatial gradients (8.8%) structured the distribution of eukaryotic microbial communities in the Bay. Similar spatiotemporal patterns between planktonic prokaryotes and eukaryotes suggest common mechanisms of adjustment, replacement, and species interaction for planktonic microbiomes under strong estuarine gradients. To our best knowledge, this work represents the first systematic study on planktonic eukaryotes in the Bay. A comprehensive view of the distribution of planktonic microbiomes and their interactions with environmental processes is critical in understanding the underlying microbial mechanisms involved in maintaining the stability, function, and environmental health of estuarine ecosystems. IMPORTANCE Deep sequencing analysis of planktonic eukaryotes in the Chesapeake Bay reveals high community diversity with many newly recognized phytoplankton taxa. The Chesapeake Bay planktonic eukaryotes show distinct seasonal and spatial variability, with recurring annual patterns of total, abundant, and rare groups. Rare taxa mainly contribute to eukaryotic diversity compared to abundant groups, and they are more sensitive to spatiotemporal variations and environmental filtering. Temporal variations, nutrient availability, and spatial gradients significantly affect the distribution of eukaryotic microbial communities. Similar spatiotemporal patterns in prokaryotes and eukaryotes suggest common mechanisms of adjustment, substitution, and species interactions in planktonic microbiomes under strong estuarine gradients. Interannually recurring patterns demonstrate that diverse eukaryotic taxa have well adapted to the estuarine environment with a long residence time. Further investigations of how human activities impact estuarine planktonic eukaryotes are critical in understanding their essential ecosystem roles and in maintaining environmental safety and public health.
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Affiliation(s)
- Hualong Wang
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Lab of Polar Oceanography and Global Ocean Change, Ocean University of China, Qingdao, China
| | - Feilong Liu
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Lab of Polar Oceanography and Global Ocean Change, Ocean University of China, Qingdao, China
| | - Min Wang
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Lab of Polar Oceanography and Global Ocean Change, Ocean University of China, Qingdao, China
| | - Yvan Bettarel
- ECOSYM (Ecologie des systèmes marins côtiers)- UMR 5119, Universite de Montpellier, Montpellier, France
| | - Yoanna Eissler
- Laboratorio de Virología, Centro de Neurobiología y Fisiopatología Integrativa, Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Feng Chen
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, Maryland, USA
| | - Jinjun Kan
- Microbiology Division, Stroud Water Research Center, Avondale, Arizona, USA
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Sguotti C, Vasilakopoulos P, Tzanatos E, Frelat R. Resilience assessment in complex natural systems. Proc Biol Sci 2024; 291:20240089. [PMID: 38807517 DOI: 10.1098/rspb.2024.0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 04/09/2024] [Indexed: 05/30/2024] Open
Abstract
Ecological resilience is the capability of an ecosystem to maintain the same structure and function and avoid crossing catastrophic tipping points (i.e. undergoing irreversible regime shifts). While fundamental for management, concrete ways to estimate and interpret resilience in real ecosystems are still lacking. Here, we develop an empirical approach to estimate resilience based on the stochastic cusp model derived from catastrophe theory. The cusp model models tipping points derived from a cusp bifurcation. We extend cusp in order to identify the presence of stable and unstable states in complex natural systems. Our Cusp Resilience Assessment (CUSPRA) has three characteristics: (i) it provides estimates on how likely a system is to cross a tipping point (in the form of a cusp bifurcation) characterized by hysteresis, (ii) it assesses resilience in relation to multiple external drivers and (iii) it produces straightforward results for ecosystem-based management. We validate our approach using simulated data and demonstrate its application using empirical time series of an Atlantic cod population and marine ecosystems in the North Sea and the Mediterranean Sea. We show that Cusp Resilience Assessment is a powerful method to empirically estimate resilience in support of a sustainable management of our constantly adapting ecosystems under global climate change.
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Affiliation(s)
- Camilla Sguotti
- Department of Biology, University of Padova , Padova 35100, Italy
- Institute of Marine Ecosystems and Fishery Science (IMF), Center for Earth System Research and Sustainability (CEN), University of Hamburg , Hamburg 22767, Germany
| | | | | | - Romain Frelat
- PO Box 30709, International Livestock Research Institute , Nairobi 00100, Kenya
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Pine MK, Hague E, Kebke A, McWhinnie L, Findlay CR. Not so silent spectators: How spectator vessels at international sailing regattas alter marine soundscapes. MARINE POLLUTION BULLETIN 2024; 202:116309. [PMID: 38564818 DOI: 10.1016/j.marpolbul.2024.116309] [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: 12/15/2023] [Revised: 03/26/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
International sailing regattas are major sporting events often held within coastal marine environments which overlap with the habitats of marine species. Although races are confined to courses, the popularity of these events can attract large spectator flotillas, sometimes composed of hundreds of motorized vessels. Underwater noise from these flotillas can potentially alter soundscapes experienced by marine species. To understand how these flotillas may alter soundscapes, acoustic recordings were taken around racecourses during the 36th America's Cup in the Hauraki Gulf, New Zealand in 2021. Sustained increases in broadband underwater sound levels during the regatta (up to 17 dB re 1 μPa rms; 0.01-24 kHz) that extended beyond racecourse boundaries (>8.5 km) and racing hours were observed; very likely attributable to the increase in regatta-related vessel activity. Underwater noise pollution from spectator flotillas attending larger regattas should be considered during event planning stages, particularly when events occur in ecologically significance areas.
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Affiliation(s)
- Matthew K Pine
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, United Kingdom; Juanes Lab, Department of Biology, University of Victoria, Victoria, BC V8W 3R4, Canada.
| | - Emily Hague
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, United Kingdom
| | - Anna Kebke
- School of Biodiversity, One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Lauren McWhinnie
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, United Kingdom; Department of Geography, University of Victoria, Victoria, BC V8W 3R4, Canada
| | - Charlotte R Findlay
- Department of Biology, Section for Zoophysiology, Aarhus University, Aarhus 8000, Denmark
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Yadav NK, Patel AB, Singh SK, Mehta NK, Anand V, Lal J, Dekari D, Devi NC. Climate change effects on aquaculture production and its sustainable management through climate-resilient adaptation strategies: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:31731-31751. [PMID: 38652188 DOI: 10.1007/s11356-024-33397-5] [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: 08/01/2023] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Aquaculture witnessed a remarkable growth as one of the fastest-expanding sector in the food production industry; however, it faces serious threat from the unavoidable impacts of climate change. Understanding this threat, the present review explores the consequences of climate change on aquaculture production and provides need based strategies for its sustainable management, with a particular emphasis on climate-resilient approaches. The study examines the multi-dimensional impacts of climate change on aquaculture which includes the shifts in water temperature, sea-level rise, ocean acidification, harmful algal blooms, extreme weather events, and alterations in ecological dynamics. The review subsequently investigates innovative scientific interventions and climate-resilient aquaculture strategies aimed at strengthening the adaptive capacity of aquaculture practices. Some widely established solutions include selective breeding, species diversification, incorporation of ecosystem-based management practices, and the implementation of sustainable and advanced aquaculture systems (aquaponics and recirculating aquaculture systems (RAS). These strategies work towards fortifying aquaculture systems against climate-induced disturbances, thereby mitigating risks and ensuring sustained production. This review provides a detailed insight to the ongoing discourse on climate-resilient aquaculture, emphasizing an immediate need for prudent measures to secure the future sustainability of fish food production sector.
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Affiliation(s)
- Nitesh Kumar Yadav
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India.
| | - Arun Bhai Patel
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Soibam Khogen Singh
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- Krishi Vigyan Kendra, ICAR Research Complex for NEH Region, Imphal, Manipur, 795142, India
| | - Naresh Kumar Mehta
- Department of Fish Processing Technology, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Vishwajeet Anand
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- ICAR - Central Institute of Fisheries Education, Mumbai, 400061, Maharashtra, India
| | - Jham Lal
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Debojit Dekari
- Department of Aquatic Health and Environment, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
| | - Ng Chinglembi Devi
- Department of Aquaculture, College of Fisheries, Central Agriculture University (Imphal), Lembucherra, Tripura (West), 799210, India
- Department of Aquaculture, Dr. M.G.R Fisheries College and Research Institute, Thiruvallur District, Ponneri, 601 204, Tamil Nadu, India
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Fathy RF. Divergent perspectives on the synergistic impacts of thermal-chemical stress on aquatic biota within the framework of climate change scenarios. CHEMOSPHERE 2024; 355:141810. [PMID: 38554872 DOI: 10.1016/j.chemosphere.2024.141810] [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: 01/25/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Climate change, including global warming, leads to rising temperatures in aquatic ecosystems, which is one of the numerous repercussions it brings. Furthermore, water warming can indirectly impact aquatic organisms by modifying the toxicity levels of pollutants. Nevertheless, numerous studies have explored the potential impacts of chemical stress on aquatic biota, but little is known about how such chemicals and toxins interact with climate change factors, especially elevated temperatures. As such, this review paper focuses on exploring the potential effects of thermochemical stress on a wide sector of aquatic organisms, including aquatic vertebrates and invertebrates, in various aquatic ecosystems (freshwater and marine systems). Herein, the objective of this study is to explore the most up-to-date the impact of water warming (without chemical stress) and thermochemical stress on various biochemical and physiological processes in aquatic fauna and how this greatly affects biodiversity and sustainability. Therefore, there is a growing need to understand and evaluate this synergistic mechanism and its potential hazardous impacts. However, we need further investigations and scientific reports to address this serious environmental issue in order to confront anthropogenic pollutants regarding climate change and chemical pollution risks in the near future and subsequently find sustainable solutions for them.
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Affiliation(s)
- Ragaa F Fathy
- Hydrobiology Department, Veterinary Research Institute, National Research Centre (NRC), 33 El-Buhouth St, 12622 Dokki, Giza, Egypt.
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40
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Sirota R, Winters G, Levy O, Marques J, Paytan A, Silverman J, Sisma-Ventura G, Rahav E, Antler G, Bar-Zeev E. Impacts of Desalination Brine Discharge on Benthic Ecosystems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5631-5645. [PMID: 38516811 DOI: 10.1021/acs.est.3c07748] [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: 03/23/2024]
Abstract
Seawater reverse osmosis (SWRO) desalination facilities produce freshwater and, at the same time, discharge hypersaline brine that often includes various chemical additives such as antiscalants and coagulants. This dense brine can sink to the sea bottom and creep over the seabed, reaching up to 5 km from the discharge point. Previous reviews have discussed the effects of SWRO desalination brine on various marine ecosystems, yet little attention has been paid to the impacts on benthic habitats. This review comprehensibly discusses the effects of SWRO brine discharge on marine benthic fauna and flora. We review previous studies that indicated a suite of impacts by SWRO brine on benthic organisms, including bacteria, seagrasses, polychaetes, and corals. The effects within the discharge mixing zones range from impaired activities and morphological deformations to changes in the community composition. Recent modeling work demonstrated that brine could spread over the seabed, beyond the mixing zone, for up to several tens of kilometers and impair nutrient fluxes from the sediment to the water column. We also provide a possible perspective on brine's impact on the biogeochemical process within the mixing zone subsurface. Desalination brine can infiltrate into the sandy bottom around the discharge area due to gravity currents. Accumulation of brine and associated chemical additives, such as polyphosphonate-based antiscalants and ferric-based coagulants in the porewater, may change the redox zones and, hence, impact biogeochemical processes in sediments. With the demand for drinking water escalating worldwide, the volumes of brine discharge are predicted to triple during the current century. Future efforts should focus on the development and operation of viable technologies to minimize the volumes of brine discharged into marine environments, along with a change to environmentally friendly additives. However, the application of these technologies should be partly subsidized by governmental stakeholders to safeguard coastal ecosystems around desalination facilities.
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Affiliation(s)
- Ryan Sirota
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer 84990, Israel
- The Dead Sea and Arava Science Center, Masada National Park, Mount Masada 869100, Israel
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, Haifa 31080, Israel
- The Interuniversity Institute for Marine Sciences in Eilat (IUI), Eilat 8810302, Israel
| | - Gidon Winters
- The Dead Sea and Arava Science Center, Masada National Park, Mount Masada 869100, Israel
- Ben-Gurion University of the Negev, Eilat Campus, Eilat 881000, Israel
| | - Oren Levy
- Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Joseane Marques
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer 84990, Israel
- The Interuniversity Institute for Marine Sciences in Eilat (IUI), Eilat 8810302, Israel
| | - Adina Paytan
- Earth and Planetary Science, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Jack Silverman
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, Haifa 31080, Israel
| | - Guy Sisma-Ventura
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, Haifa 31080, Israel
| | - Eyal Rahav
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, Haifa 31080, Israel
| | - Gilad Antler
- The Interuniversity Institute for Marine Sciences in Eilat (IUI), Eilat 8810302, Israel
- Department of Earth and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Edo Bar-Zeev
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer 84990, Israel
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McIlroy SE, Guibert I, Archana A, Chung WYH, Duffy JE, Gotama R, Hui J, Knowlton N, Leray M, Meyer C, Panagiotou G, Paulay G, Russell B, Thompson PD, Baker DM. Life goes on: Spatial heterogeneity promotes biodiversity in an urbanized coastal marine ecosystem. GLOBAL CHANGE BIOLOGY 2024; 30:e17248. [PMID: 38581126 DOI: 10.1111/gcb.17248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 02/09/2024] [Accepted: 02/18/2024] [Indexed: 04/08/2024]
Abstract
Both human populations and marine biodiversity are concentrated along coastlines, with growing conservation interest in how these ecosystems can survive intense anthropogenic impacts. Tropical urban centres provide valuable research opportunities because these megacities are often adjacent to mega-diverse coral reef systems. The Pearl River Delta is a prime exemplar, as it encompasses one of the most densely populated and impacted regions in the world and is located just northwest of the Coral Triangle. However, the spatial and taxonomic complexity of this biodiversity, most of which is small, cryptic in habitat and poorly known, make comparative analyses challenging. We deployed standardized settlement structures at seven sites differing in the intensity of human impacts and used COI metabarcoding to characterize benthic biodiversity, with a focus on metazoans. We found a total of 7184 OTUs, with an average of 665 OTUs per sampling unit; these numbers exceed those observed in many previous studies using comparable methods, despite the location of our study in an urbanized environment. Beta diversity was also high, with 52% of the OTUs found at just one site. As expected, we found that the sites close to point sources of pollution had substantially lower diversity (44% less) relative to sites bathed in less polluted oceanic waters. However, the polluted sites contributed substantially to the total animal diversity of the region, with 25% of all OTUs occurring only within polluted sites. Further analysis of Arthropoda, Annelida and Mollusca showed that phylogenetic clustering within a site was common, suggesting that environmental filtering reduced biodiversity to a subset of lineages present within the region, a pattern that was most pronounced in polluted sites and for the Arthropoda. The water quality gradients surrounding the PRD highlight the unique role of in situ studies for understanding the impacts of complex urbanization pressures on biodiversity.
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Affiliation(s)
- Shelby E McIlroy
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
- Simon F.S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, P.R. China
| | - Isis Guibert
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
| | - Anand Archana
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
- San Francisco State University, San Francisco, California, USA
| | - Wing Yi Haze Chung
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
| | - J Emmett Duffy
- MarineGEO Program and Smithsonian Environmental Research Center, Edgewater, Maryland, USA
| | - Rinaldi Gotama
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
- Indo Ocean Project, Banjar Adegan Kawan, Desa Ped, Bali, Indonesia
| | - Jerome Hui
- Simon F.S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, P.R. China
| | - Nancy Knowlton
- National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, USA
| | - Matthieu Leray
- MarineGEO Program and Smithsonian Environmental Research Center, Edgewater, Maryland, USA
- Smithsonian Tropical Research Institute, Smithsonian Institution, Panama City, Balboa, Ancon, Republic of Panama
| | - Chris Meyer
- National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, USA
| | - Gianni Panagiotou
- Department of Microbiome Dynamics, Leibniz Institute for Natural Product Research and Infection Biology, Hans-Knoell-Institute, Jena, Germany
- Friedrich Schiller University, Faculty of Biological Sciences, Jena, Germany
- Department of Medicine and State Key Laboratory of Pharmaceutical Biotechnology, University of Hong Kong, Hong Kong, China
| | - Gustav Paulay
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Bayden Russell
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
| | - Philip D Thompson
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
| | - David M Baker
- School of Biological Sciences, The Swire Institute of Marine Science, The University of Hong Kong, Hong Kong, P.R. China
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42
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Broekman MJE, Hilbers JP, Hoeks S, Huijbregts MAJ, Schipper AM, Tucker MA. Environmental drivers of global variation in home range size of terrestrial and marine mammals. J Anim Ecol 2024; 93:488-500. [PMID: 38459628 DOI: 10.1111/1365-2656.14073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 02/25/2024] [Indexed: 03/10/2024]
Abstract
As animal home range size (HRS) provides valuable information for species conservation, it is important to understand the driving factors of HRS variation. It is widely known that differences in species traits (e.g. body mass) are major contributors to variation in mammal HRS. However, most studies examining how environmental variation explains mammal HRS variation have been limited to a few species, or only included a single (mean) HRS estimate for the majority of species, neglecting intraspecific HRS variation. Additionally, most studies examining environmental drivers of HRS variation included only terrestrial species, neglecting marine species. Using a novel dataset of 2800 HRS estimates from 586 terrestrial and 27 marine mammal species, we quantified the relationships between HRS and environmental variables, accounting for species traits. Our results indicate that terrestrial mammal HRS was on average 5.3 times larger in areas with low human disturbance (human footprint index [HFI] = 0), compared to areas with maximum human disturbance (HFI = 50). Similarly, HRS was on average 5.4 times larger in areas with low annual mean productivity (NDVI = 0), compared to areas with high productivity (NDVI = 1). In addition, HRS increased by a factor of 1.9 on average from low to high seasonality in productivity (standard deviation (SD) of monthly NDVI from 0 to 0.36). Of these environmental variables, human disturbance and annual mean productivity explained a larger proportion of HRS variance than seasonality in productivity. Marine mammal HRS decreased, on average, by a factor of 3.7 per 10°C decline in annual mean sea surface temperature (SST), and increased by a factor of 1.5 per 1°C increase in SST seasonality (SD of monthly values). Annual mean SST explained more variance in HRS than SST seasonality. Due to the small sample size, caution should be taken when interpreting the marine mammal results. Our results indicate that environmental variation is relevant for HRS and that future environmental changes might alter the HRS of individuals, with potential consequences for ecosystem functioning and the effectiveness of conservation actions.
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Affiliation(s)
- Maarten J E Broekman
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
| | - Jelle P Hilbers
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
| | - Selwyn Hoeks
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
| | - Mark A J Huijbregts
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
| | - Aafke M Schipper
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
- PBL Netherlands Environmental Assessment Agency, The Hague, The Netherlands
| | - Marlee A Tucker
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, The Netherlands
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43
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Bockel T, Marre G, Delaruelle G, Agel N, Boissery P, Guilhaumon F, Mouquet N, Mouillot D, Guilbert A, Deter J. Early signals of Posidonia oceanica meadows recovery in a context of wastewater treatment improvements. MARINE POLLUTION BULLETIN 2024; 201:116193. [PMID: 38428047 DOI: 10.1016/j.marpolbul.2024.116193] [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: 12/18/2023] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 03/03/2024]
Abstract
Natural ecological restoration is a cornerstone of modern conservation science and managers need more documented "success stories" to lead the way. In French mediterranean sea, we monitored Posidonia oceanica lower limit using acoustic telemetry and photogrammetry and investigated the descriptors driving its variations, at a national scale and over more than a decade. We showed significant effects of environmental descriptors (region, sea surface temperature and bottom temperature) but also of wastewater treatment plant (WWTP) effluents proxies (size of WWTP, time since conformity, and distance to the closest effluent) on the meadows lower limit progression. This work indicates a possible positive response of P. oceanica meadows to improvements in wastewater treatment and a negative effect of high temperatures. While more data is needed, the example of French wastewater policy should inspire stakeholders and coastal managers in their efforts to limit anthropogenic pressures on vulnerable ecosystems.
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Affiliation(s)
- Thomas Bockel
- Andromède océanologie, 7 place Cassan, Carnon plage, 34130 Mauguio, France; MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université Montpellier, 34095 Montpellier Cedex, France.
| | - Guilhem Marre
- Andromède océanologie, 7 place Cassan, Carnon plage, 34130 Mauguio, France
| | | | - Noémie Agel
- Andromède océanologie, 7 place Cassan, Carnon plage, 34130 Mauguio, France
| | - Pierre Boissery
- Agence de l'Eau Rhône-Méditerranée-Corse, Délégation de Marseille, immeuble CMCI, 2 rue Henri Barbusse, CS 90464, 13207 Marseille Cedex 01, France
| | - François Guilhaumon
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université Montpellier, 34095 Montpellier Cedex, France
| | - Nicolas Mouquet
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université Montpellier, 34095 Montpellier Cedex, France; FRB - CESAB, Institut Bouisson Bertrand, 5, rue de l'École de médecine, 34000 Montpellier, France
| | - David Mouillot
- MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université Montpellier, 34095 Montpellier Cedex, France
| | - Antonin Guilbert
- Andromède océanologie, 7 place Cassan, Carnon plage, 34130 Mauguio, France
| | - Julie Deter
- Andromède océanologie, 7 place Cassan, Carnon plage, 34130 Mauguio, France; MARBEC, UMR IRD-CNRS-UM-IFREMER 9190, Université Montpellier, 34095 Montpellier Cedex, France
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44
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Steger J, Bogi C, Lubinevsky H, Galil BS, Zuschin M, Albano PG. Ecological baselines in the Eastern Mediterranean Sea shifted long before the availability of observational time series. GLOBAL CHANGE BIOLOGY 2024; 30:e17272. [PMID: 38623753 DOI: 10.1111/gcb.17272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 04/17/2024]
Abstract
Native biodiversity loss and invasions by nonindigenous species (NIS) have massively altered ecosystems worldwide, but trajectories of taxonomic and functional reorganization remain poorly understood due to the scarcity of long-term data. Where ecological time series are available, their temporal coverage is often shorter than the history of anthropogenic changes, posing the risk of drawing misleading conclusions on systems' current states and future development. Focusing on the Eastern Mediterranean Sea, a region affected by massive biological invasions and the largest climate change-driven collapse of native marine biodiversity ever documented, we followed the taxonomic and functional evolution of an emerging "novel ecosystem", using a unique dataset on shelled mollusks sampled in 2005-2022 on the Israeli shelf. To quantify the alteration of observed assemblages relative to historical times, we also analyzed decades- to centuries-old ecological baselines reconstructed from radiometrically dated death assemblages, time-averaged accumulations of shells on the seafloor that constitute natural archives of past community states. Against expectations, we found no major loss of native biodiversity in the past two decades, suggesting that its collapse had occurred even earlier than 2005. Instead, assemblage taxonomic and functional richness increased, reflecting the diversification of NIS whose trait structure was, and has remained, different from the native one. The comparison with the death assemblage, however, revealed that modern assemblages are taxonomically and functionally much impoverished compared to historical communities. This implies that NIS did not compensate for the functional loss of native taxa, and that even the most complete observational dataset available for the region represents a shifted baseline that does not reflect the actual magnitude of anthropogenic changes. While highlighting the great value of observational time series, our results call for the integration of multiple information sources on past ecosystem states to better understand patterns of biodiversity loss in the Anthropocene.
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Affiliation(s)
- Jan Steger
- Department of Palaeontology, University of Vienna, Vienna, Austria
| | - Cesare Bogi
- Gruppo Malacologico Livornese, c/o Museo di Storia Naturale del Mediterraneo, Livorno, Italy
| | - Hadas Lubinevsky
- National Institute of Oceanography, Israel Oceanographic and Limnological Research, Haifa, Israel
| | - Bella S Galil
- The Steinhardt Museum of Natural History and Israel National Center for Biodiversity Studies, Tel Aviv University, Tel Aviv, Israel
| | - Martin Zuschin
- Department of Palaeontology, University of Vienna, Vienna, Austria
| | - Paolo G Albano
- Department of Palaeontology, University of Vienna, Vienna, Austria
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Naples, Italy
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45
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Feyrer LJ, Stanistreet JE, Moors-Murphy HB. Navigating the unknown: assessing anthropogenic threats to beaked whales, family Ziphiidae. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240058. [PMID: 38633351 PMCID: PMC11021932 DOI: 10.1098/rsos.240058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 04/19/2024]
Abstract
This review comprehensively evaluates the impacts of anthropogenic threats on beaked whales (Ziphiidae)-a taxonomic group characterized by cryptic biology, deep dives and remote offshore habitat, which have challenged direct scientific observation. By synthesizing information published in peer-reviewed studies and grey literature, we identified available evidence of impacts across 14 threats for each Ziphiidae species. Threats were assessed based on their pathways of effects on individuals, revealing many gaps in scientific understanding of the risks faced by beaked whales. By applying a comprehensive taxon-level analysis, we found evidence that all beaked whale species are affected by multiple stressors, with climate change, entanglement and plastic pollution being the most common threats documented across beaked whale species. Threats assessed as having a serious impact on individuals included whaling, military sonar, entanglement, depredation, vessel strikes, plastics and oil spills. This review emphasizes the urgent need for targeted research to address a range of uncertainties, including cumulative and population-level impacts. Understanding the evidence and pathways of the effects of stressors on individuals can support future assessments, guide practical mitigation strategies and advance current understanding of anthropogenic impacts on rare and elusive marine species.
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Affiliation(s)
- Laura J. Feyrer
- Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Nova ScotiaB2Y 4A2, Canada
- Department of Biology, Dalhousie University, Halifax, Nova ScotiaB3H 4R2, Canada
| | - Joy E. Stanistreet
- Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Nova ScotiaB2Y 4A2, Canada
| | - Hilary B. Moors-Murphy
- Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Nova ScotiaB2Y 4A2, Canada
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46
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Longo GO. Seagrass vulnerability to tropicalization-induced herbivory. Nat Ecol Evol 2024; 8:600-601. [PMID: 38366131 DOI: 10.1038/s41559-024-02345-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Affiliation(s)
- Guilherme O Longo
- Marine Ecology Laboratory, Department of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Natal, Brazil.
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47
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Griffiths LL, Williams J, Buelow CA, Tulloch VJ, Turschwell MP, Campbell MD, Harasti D, Connolly RM, Brown CJ. A data-driven approach to multiple-stressor impact assessment for a marine protected area. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2024; 38:e14177. [PMID: 37668099 DOI: 10.1111/cobi.14177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 07/18/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
The coastal environment is not managed in a way that considers the impact of cumulative threats, despite being subject to threats from all realms (marine, land, and atmosphere). Relationships between threats and species are often nonlinear; thus, current (linear) approaches to estimating the impact of threats may be misleading. We developed a data-driven approach to assessing cumulative impacts on ecosystems and applied it to explore nonlinear relationships between threats and a temperate reef fish community. We used data on water quality, commercial fishing, climate change, and indicators of recreational fishing and urbanization to build a cumulative threat map of the northern region in New South Wales, Australia. We used statistical models of fish abundance to quantify associations among threats and biophysical covariates and predicted where cumulative impacts are likely to have the greatest impact on fish. We also assessed the performance of no-take zones (NTZs), to protect fish from cumulative threats across 2 marine protected area networks (marine parks). Fishing had a greater impact on fish than water quality threats (i.e., percent increase above the mean for invertivores was 337% when fishing was removed and was 11% above the mean when water quality was removed inside NTZs), and fishing outside NTZs affected fish abundances inside NTZs. Quantifying the spatial influence of multiple threats enables managers to understand the multitude of management actions required to address threats.
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Affiliation(s)
- Laura L Griffiths
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - Joel Williams
- Fisheries Research, NSW Department of Primary Industries, Nelson Bay, New South Wales, Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Christina A Buelow
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - Vivitskaia J Tulloch
- Department of Forest and Conservation Science, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mischa P Turschwell
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - Max D Campbell
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - David Harasti
- Fisheries Research, NSW Department of Primary Industries, Nelson Bay, New South Wales, Australia
| | - Rod M Connolly
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
| | - Christopher J Brown
- Coastal and Marine Research Centre, Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Queensland, Australia
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48
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Rangel-Buitrago N, Galgani F, Neal WJ. Addressing the global challenge of coastal sewage pollution. MARINE POLLUTION BULLETIN 2024; 201:116232. [PMID: 38457879 DOI: 10.1016/j.marpolbul.2024.116232] [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: 02/06/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Coastal environments, essential for about half of the world's population living near coastlines, face severe threats from human-induced activities such as intensified urbanization, aggressive development, and particularly, coastal sewage pollution. This type of pollution, comprising untreated sewage discharging nutrients, pathogens, heavy metals, microplastics, and organic compounds, significantly endangers these ecosystems. The issue of sewage in coastal areas is complex, influenced by factors like inadequate sewage systems, septic tanks, industrial and agricultural runoff, and natural processes like coastal erosion, further complicated by oceanic dynamics like tides and currents. A global statistic reveals that over 80 % of sewage enters the environment without treatment, contributing significantly to nitrogen pollution in coastal ecosystems. This pollution not only harms marine life and ecosystems through chemical contaminants and eutrophication, leading to hypoxic zones and biodiversity loss, but also affects human health through waterborne diseases and seafood contamination. Additionally, it has substantial economic repercussions, impacting tourism, recreation, and fisheries, and causing revenue and employment losses. Addressing this issue globally involves international agreements and national legislations, but their effectiveness is hindered by infrastructural disparities, particularly in developing countries. Thus, effective management requires a comprehensive approach including advanced treatment technologies, stringent regulations, regular monitoring, and international cooperation. The international scientific community plays a crucial role in fostering a collaborative and equitable response to this pressing environmental challenge.
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Affiliation(s)
- Nelson Rangel-Buitrago
- Programade Física, Facultad de Ciencias Básicas, Universidad del Atlántico, Barranquilla, Atlántico, Colombia.
| | - Francois Galgani
- Unité Ressources marines en Polynésie Francaise, Institut français de recherche pour l'exploitation de la mer (Ifremer), BP 49, Vairao, Tahiti, French Polynesia
| | - William J Neal
- Department of Geology, Grand Valley State University, The Seymour K. & Esther R. Padnos Hall of Science 213A, Allendale, MI, USA
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49
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Sbrana A, Maiello G, Gravina MF, Cicala D, Galli S, Stefani M, Russo T. Environmental DNA metabarcoding reveals the effects of seafloor litter and trawling on marine biodiversity. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106415. [PMID: 38395681 DOI: 10.1016/j.marenvres.2024.106415] [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: 11/10/2023] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024]
Abstract
Environmental DNA (eDNA) techniques are emerging as promising tools for monitoring marine communities. However, they have not been applied to study the integrated effects of anthropogenic pressures on marine biodiversity. This study examined the relationships between demersal community species composition, key environmental features, and anthropogenic impacts such as fishing effort and seafloor litter using eDNA data in the central Tyrrhenian Sea. The results indicated that both fishing effort and seafloor litter influenced species composition and diversity. The adaptive traits of marine species played a critical role in their response to debris accumulation and fishing. Mobile species appeared to use relocation strategies, while sessile species showed flexibility in the face of disturbance. Epibiotic species relied on passive transport. The use of eDNA-based methods is a valuable resource for monitoring anthropogenic impacts during scientific surveys, enhancing our ability to monitor marine ecosystems and more effectively assess the effects of pollution.
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Affiliation(s)
- Alice Sbrana
- Laboratory of Experimental Ecology and Aquaculture - Department of Biology - University of Rome "Tor Vergata", via della Ricerca Scientifica snc, 00133, Rome, Italy; PhD program in Evolutionary Biology and Ecology, University of Rome Tor Vergata, via della Ricerca Scientifica 1, 00133, Rome, Italy.
| | - Giulia Maiello
- School of Biological and Environmental Sciences, Liverpool John Moores University, L33AF, Liverpool, UK
| | - Maria Flavia Gravina
- Laboratory of Experimental Ecology and Aquaculture - Department of Biology - University of Rome "Tor Vergata", via della Ricerca Scientifica snc, 00133, Rome, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
| | - Davide Cicala
- Laboratory of Experimental Ecology and Aquaculture - Department of Biology - University of Rome "Tor Vergata", via della Ricerca Scientifica snc, 00133, Rome, Italy
| | - Simone Galli
- CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
| | - Matteo Stefani
- Laboratory of Experimental Ecology and Aquaculture - Department of Biology - University of Rome "Tor Vergata", via della Ricerca Scientifica snc, 00133, Rome, Italy; PhD program in Evolutionary Biology and Ecology, University of Rome Tor Vergata, via della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Tommaso Russo
- Laboratory of Experimental Ecology and Aquaculture - Department of Biology - University of Rome "Tor Vergata", via della Ricerca Scientifica snc, 00133, Rome, Italy; CoNISMa, Piazzale Flaminio 9, 00196, Rome, Italy
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50
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Vellani V, Cuccaro A, Oliva M, Pretti C, Renzi M. Assessing combined effects of long-term exposure to copper and marine heatwaves on the reef-forming serpulid Ficopomatus enigmaticus through a biomarker approach. MARINE POLLUTION BULLETIN 2024; 201:116269. [PMID: 38531206 DOI: 10.1016/j.marpolbul.2024.116269] [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: 11/02/2023] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024]
Abstract
Sessile benthic organisms can be affected by global changes and local pressures, such as metal pollution, that can lead to damages at different levels of biological organization. Effects of exposure to marine heatwaves (MHWs) alone and in combination with environmentally relevant concentration of copper (Cu) were evaluated in the reef-forming tubeworm Ficopomatus enigmaticus using a multi-biomarker approach. Biomarkers of cell membrane damage, enzymatic antioxidant defences, metabolic activity, neurotoxicity, and DNA integrity were analyzed. The exposure to Cu alone did not produce any significant effect. Exposure to MHWs alone produced effects only on metabolic activity (increase of glutathione S-transferase) and energy reserves (decrease in protein content). MHWs in combination with copper was the condition that most influenced the status of cell homeostasis of exposed F. enigmaticus. The combination of MHWs plus Cu exposure induced increase of protein carbonylation and glutathione S-transferase activity, decrease in protein/carbohydrate content and carboxylesterase activity. This study on a reef-forming organism highlighted the additive effect of a climate change-related stressor to metals pollution of marine and brackish waters.
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Affiliation(s)
- Verdiana Vellani
- Department of Life Sciences, University of Trieste, 34127 Trieste, TS, Italy; CoNiSMa, Piazzale Flaminio 9, 00196 Roma, Italy
| | - Alessia Cuccaro
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Matteo Oliva
- Interuniversity Consortium of Marine Biology of Leghorn 'G. Bacci', 57128 Leghorn, Italy
| | - Carlo Pretti
- Interuniversity Consortium of Marine Biology of Leghorn 'G. Bacci', 57128 Leghorn, Italy; Department of Veterinary Sciences, University of Pisa, San Piero a Grado, PI 56122, Italy.
| | - Monia Renzi
- Department of Life Sciences, University of Trieste, 34127 Trieste, TS, Italy; CoNiSMa, Piazzale Flaminio 9, 00196 Roma, Italy
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