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Jha AK, Kishore P, Chinnadurai S, Verma SK, Kumar R, Sreejith S, Sarika K. Heavy metals and trace minerals in commonly available shark species from North East Arabian Sea: A human health risk perspective. ENVIRONMENTAL RESEARCH 2024; 252:118979. [PMID: 38685303 DOI: 10.1016/j.envres.2024.118979] [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: 01/04/2024] [Revised: 04/16/2024] [Accepted: 04/20/2024] [Indexed: 05/02/2024]
Abstract
Shark is a seafood commodity that is a good source of minerals and accumulates heavy metals and trace elements through biomagnification, which can pose health risk if taken above the permissible limit. A study was conducted on commonly landed eleven shark species (Scoliodon laticaudus, Rhizopriodon oligolinx, Sphyrna lewini (CR), Carcharhinus macloti, Carcharinus limbatus, Carcharhinus amblyrhynchoides, Carcharhinus sorrah, Carcharinus falciformes(VU), Glaucostegus granulatus, Chiloscyllium arabicum, Loxodon macrorhinus) and analyzed for their heavy metal content, Hazard Index, Total Hazard Quotient, Metal Pollution Index, and also calculated the health risk associated with the consumption. Most of the heavy metals and trace minerals were found to be within the acceptable limit. The Targeted Hazard Quotient (THQ) and the Hazard Index (HI) of all the species except two were less than 1 (HI ≤ 1.0). The Metal Pollution Index (MPI) is showing either no impact or very low contamination. An overall study on hazard identification and health risk characterization in terms of heavy metals shows contamination of some heavy metals in sharks, but there is no potential human health risk associated with consumption.
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Affiliation(s)
- Ashish Kumar Jha
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India.
| | - Pankaj Kishore
- Central Institute of Fisheries Technology, ICAR-CIFT, Matsyapuri, Willingdon Island, Cochin, 682029, India
| | | | - Sumit Kumar Verma
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - Rajan Kumar
- Veraval Regional Station of ICAR-CMFRI, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - S Sreejith
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
| | - K Sarika
- Veraval Research Centre of ICAR-CIFT, Matyabhavan, Bhidia, Veraval, Gujarat, 362269, India
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Adebowale A, O'Riain J, Rogers T, Naidoo K, Dicken M, Naude V. Bioaccumulated trace element toxicity in commercially harvested bronze whaler sharks (Carcharhinus brachyurus) of South Africa. Food Chem 2024; 457:140081. [PMID: 38908246 DOI: 10.1016/j.foodchem.2024.140081] [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: 02/14/2024] [Revised: 06/04/2024] [Accepted: 06/10/2024] [Indexed: 06/24/2024]
Abstract
Shark meat consumption may pose a significant risk to human health as high levels of toxic pollutants bioaccumulate in muscular tissue. Commercial harvest of Carcharhinus brachyurus meat in South Africa is estimated at 100-300 filleted tons per annum. Muscle tissue samples from 41 sharks were collected from the southern and eastern coastlines of South Africa in 2022 and analysed for 10 trace elements and 8 polychlorinated biphenyl congeners. All trace elements were found to be lower than the regulatory maximum limits for human consumption in most samples irrespective of shark length, sex, and sampling region. However, the estimated daily intake for Mercury and Arsenic exceeded the oral reference dose set by international agencies. The meat from this shark may be consumed due to its low toxic potential for human health, however long-term exposure to C. brachyurus meat should be avoided as it could pose detrimental health risks to consumers.
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Affiliation(s)
- Adetola Adebowale
- Institute for Communities and Wildlife in Africa (iCWild), University of Cape Town, South Africa
| | - Justin O'Riain
- Institute for Communities and Wildlife in Africa (iCWild), University of Cape Town, South Africa
| | - Toby Rogers
- Institute for Communities and Wildlife in Africa (iCWild), University of Cape Town, South Africa; Shark Spotters, Cape Town, South Africa
| | - Kristina Naidoo
- KwaZulu Natal Sharks Board, Umhlanga Rocks, 4320, South Africa
| | - Matt Dicken
- KwaZulu Natal Sharks Board, Umhlanga Rocks, 4320, South Africa; Institute for Coastal and Marine Research, Ocean Sciences Campus, Nelson Mandela University, Gqeberha 6031, South Africa
| | - Vincent Naude
- Department of Conservation Ecology and Entomology, University of Stellenbosch, Matieland, 7602, South Africa.
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Zhu C, Liu Q, Wang Y, Wang X, Ma Y, Yang F, Dong W, Ji H. A screening for optimal selenium enrichment additives for selenium-enriched fish production: Application of a HPLC-ICP-MS method. Food Chem X 2024; 21:101088. [PMID: 38226325 PMCID: PMC10788228 DOI: 10.1016/j.fochx.2023.101088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024] Open
Abstract
The production of selenium-enriched fish contributes to alleviating selenium deficiency for humans. In this study, selenium nanoparticles (SeNPs) comparable in bioavailability to selenomethionine (SeMet), increased SeMet content in O. macrolepis (Onychostoma macrolepis) muscle. Additionally, dietary SeNPs significantly enhanced selenocysteine (SeCys2) and methylselenocysteine (MeSeCys) levels in O. macrolepis muscle. The effect of SeNPs on selenium speciation in grass carp muscle was consistent with O. macrolepis results. SeCys2 and MeSeCys showed antioxidant capacity in HEK293T cells, indicating enhanced health benefits of Se-enriched fish produced using SeNPs. Furthermore, the addition of 0.3 mg/kg SeNPs significantly improved the flesh quality of O. macrolepis by reducing the content of crude fat and heavy metals, as well as increasing the levels of crude protein, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the ratio of n-3/n-6 polyunsaturated fatty acids (PUFAs). Therefore, selenium-enriched fish produced from SeNPs is a good source for improving human dietary selenium intake.
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Affiliation(s)
- Chao Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
- Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qimin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaolin Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuxuan Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
- Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
- Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hong Ji
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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Zhu C, Wu Z, Liu Q, Wang X, Zheng L, He S, Yang F, Ji H, Dong W. Selenium nanoparticles in aquaculture: Unique advantages in the production of Se-enriched grass carp ( Ctenopharyngodon idella). ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 16:189-201. [PMID: 38357572 PMCID: PMC10864761 DOI: 10.1016/j.aninu.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/26/2023] [Accepted: 11/23/2023] [Indexed: 02/16/2024]
Abstract
The production of selenium-enriched fish can contribute to alleviating selenium deficiency in human diets. However, it is still unclear which selenium source, as an additive, can efficiently and cost-effectively produce high-quality selenium-enriched fish. This study evaluated the effects of selenium nanoparticles (SeNP), selenite, and selenomethionine (SeMet) on the growth, antioxidant capacity, selenium content, selenium speciation, and meat quality of grass carp. Ten diets were prepared, including a basal diet (BD) and three concentrations (0.1, 0.3, and 0.9 mg/kg) of SeNP, selenite, and SeMet. A total of 600 fish (250.79 ± 1.57 g) were randomly assigned to 30 tanks (3 tanks/group). Fish were fed the experimental diet three times daily for 60 d. In this study, SeNP most significantly promoted the growth and antioxidant capacity of grass carp, with 0.3 mg/kg SeNP identified as the optimal additive concentration. Additionally, SeNP demonstrated equally excellent bioavailability as SeMet and significantly increased the content of SeMet in grass carp (Ctenopharyngodon idella) muscle. Furthermore, compared to SeMet and selenite, dietary SeNP could more significantly enhance the content of selenocysteine (SeCys2) and methylselenocysteine (MeSeCys) in grass carp muscle tissue. In addition, we have demonstrated that SeCys2 and MeSeCys promote apoptosis of cancer cells (HeLa) through the mitochondrial apoptotic pathway (involving Bax and Bcl-2). Furthermore, as an additive, 0.3 mg/kg SeNP significantly improved the flesh quality of grass carp by reducing crude fat and heavy metal content, as well as increasing the levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and the ratio of n-3/n-6 polyunsaturated fatty acid (PUFA). In summary, SeNP is the most suitable additive for producing selenium-enriched fish.
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Affiliation(s)
- Chao Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zifang Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qimin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaolin Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lijuan Zheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Shuyang He
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Hong Ji
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Mourão AO, Santos MS, da Costa ASV, da Silva HT, Maia LFO, Faria MCDS, Rodriguez MDVR, Rodrigues JL. Assessment of Health Risk and Presence of Metals in Water and Fish Samples from Doce River, Brazil, After Fundão Dam Collapse. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 84:377-388. [PMID: 37009918 DOI: 10.1007/s00244-023-00991-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
The rupture of the Fundão dam released about 50 million m3 of mining tailings in the Doce river basin. To assess the potential for environmental contamination and the risks of residual exposure of the human population generated by these tailings, water and fish samples from the Doce river were collected 25 days after the accident and analyzed the physicochemical parameters of the water and levels of metals by ICP-MS, in addition to the temporal variability of the concentration of these elements through other studies. This was the first study to carry out an assessment of the health risk associated with the consumption of fish contaminated by metals from the areas affected by the disaster. The values of turbidity (5460 NTU), electrical conductivity (74.8 μS cm-1), total dissolved solids (892 mg L-1) and total suspended solids (772 mg L-1) were above the maximum limit allowed by Brazilian legislation, due to the presence of large amounts of solid materials released after the dam rupture. The analysis of metals in water samples indicated high concentrations of Al (1,906.71 μg L-1), Mn (370.32 μg L-1), Fe (8,503.50 μg L-1) and Hg (34.25 μg L-1), while for the fish samples, only As (1,033.98 μg kg-1) and Hg (herbivorous: 505.32 μg kg-1; predatory: 1,184.09 μg kg-1) presented levels above those established by Brazilian legislation. The health risk assessment showed that the estimated daily intake for Hg was higher than the reference dose, reinforcing the need for monitoring the area affected by the disaster.
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Affiliation(s)
- Amanda Oliveira Mourão
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil
| | - Mayra Soares Santos
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil
| | - Alexandre Sylvio Vieira da Costa
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil
| | - Heberson Teixeira da Silva
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil
| | | | - Márcia Cristina da Silva Faria
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil
| | | | - Jairo Lisboa Rodrigues
- Instituto de Ciência, Engenharia e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Teófilo Otoni, MG, 39803-371, Brazil.
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Erasmus JH, Smit NJ, Gerber R, Schaeffner BC, Nkabi N, Wepener V. Total mercury concentrations in sharks, skates and rays along the South African coast. MARINE POLLUTION BULLETIN 2022; 184:114142. [PMID: 36182787 DOI: 10.1016/j.marpolbul.2022.114142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Global declines in elasmobranch populations resulting from several stressors raises conservation concern. Additionally, apex predators bioaccumulate high concentrations of total mercury (THg), due to biomagnification. Although South Africa is considered one of the top ten contributors of Hg emissions globally, information on Hg concentrations in elasmobranchs is limited. The aim of this study was to evaluate the THg concentrations in 22 species of elasmobranchs along the South African coastline. Concentrations ranged between 0.22 and 5.8 mg/kg in Haploblepharus pictus (dark shysharks) and Rostroraja alba (white skates) on the south coast, respectively. Along the east coast it ranged between 0.21 and 17.8 mg/kg in Mobula kuhlii (shortfin devil rays) and Sphyrna lewini (scalloped hammerheads), respectively. Mercury concentrations on the east coast were in the same range or higher compared to the same species sampled between 2005-10 from the same region, with generally higher concentrations compared to the same species sampled globally.
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Affiliation(s)
- J H Erasmus
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom 2520, South Africa.
| | - N J Smit
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom 2520, South Africa.
| | - R Gerber
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom 2520, South Africa; South African Shark Conservancy, Old Harbour, 22 Marine Drive, Hermanus 7200, South Africa.
| | - B C Schaeffner
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom 2520, South Africa; South African Shark Conservancy, Old Harbour, 22 Marine Drive, Hermanus 7200, South Africa; Institute for Experimental Pathology at Keldur, University of Iceland, Keldnavegur 3, 112 Reykjavík, Iceland.
| | - N Nkabi
- KwaZulu-Natal Sharks Board, 1a Herrwood Drive, Umhlanga Rocks 4320, South Africa.
| | - V Wepener
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom 2520, South Africa.
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Chen CF, Chen CW, Ju YR, Wang MH, Lim YC, Tsai WP, Dong CD. Evaluation of polycyclic aromatic hydrocarbons in silky sharks Carcharhinus falciformis collected from Western Indian Ocean and human health risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153675. [PMID: 35124066 DOI: 10.1016/j.scitotenv.2022.153675] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/26/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
The silky shark (Carcharhinus falciformis) is the most abundant and widely distributed shark species in the marine system of tropical regions. However, it appears that there is limited information on USEPA 16 polycyclic aromatic hydrocarbons (PAHs) concentration in silky shark muscle tissue, which has together with the lack of a health risk assessment of human consumption of silky shark filets. The potential toxicity of PAHs in muscles of silky sharks and cancer and non-cancer risk of consumers were assessed. Results showed that the total PAHs (TPAHs) concentration in the muscle tissue of silky sharks was between 62 and 657 ng/g ww, with an average of 234 ± 221 (mean ± standard deviation) ng/g ww, and can be considered as minimally to moderately contaminated level. Naphthalene (NA), phenanthrene (PH), and fluoranthene (FLU) are the most abundant PAHs in silky sharks muscle tissue, accounting for 38.6%, 11.0%, and 19.0% of TPAHs, respectively. The average values of toxic benzo[a]pyrene (BaP) equivalent (TEQcarc) and toxic dioxin equivalent (TEQfish) of PAHs equal to the potency of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in silky shark muscle are 13.5 ± 16.4 ng BaP/g ww and 34.1 ± 77.4 pg TCDD/g ww, respectively, and they showed a good linear relationship (r = 0.928; p < 0.001). The TEQcarc of silky sharks muscle is higher than USEPA's screening value of PAHs of 3.2 ng BaP/g ww for adults, indicating a potential negative impact on public health. The calculated hazard index (HI) of PAHs is less than 1, suggesting that residents eating silky shark muscle will not expect to cause significant non-cancer risk. However, the incremental lifetime cancer risk (ILCR) of BaP as 10.6-26.3% and 8.2-32.4% in males and females, respectively, may pose a significant cancer risk. In general, children and the elderly have relatively higher risks, as well as males have a higher cancer and non-cancer risk than females.
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Affiliation(s)
- Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Yun-Ru Ju
- Department of Safety, Health and Environmental Engineering, National United University, Miaoli 36063, Taiwan
| | - Ming-Huang Wang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Yee Cheng Lim
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Wen-Pei Tsai
- Department of Fisheries Production and Management, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan.
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Le Croizier G, Sonke JE, Lorrain A, Renedo M, Hoyos-Padilla M, Santana-Morales O, Meyer L, Huveneers C, Butcher P, Amezcua-Martinez F, Point D. Foraging plasticity diversifies mercury exposure sources and bioaccumulation patterns in the world's largest predatory fish. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127956. [PMID: 34986563 DOI: 10.1016/j.jhazmat.2021.127956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/16/2021] [Accepted: 11/28/2021] [Indexed: 05/04/2023]
Abstract
Large marine predators exhibit high concentrations of mercury (Hg) as neurotoxic methylmercury, and the potential impacts of global change on Hg contamination in these species remain highly debated. Current contaminant model predictions do not account for intraspecific variability in Hg exposure and may fail to reflect the diversity of future Hg levels among conspecific populations or individuals, especially for top predators displaying a wide range of ecological traits. Here, we used Hg isotopic compositions to show that Hg exposure sources varied significantly between and within three populations of white sharks (Carcharodon carcharias) with contrasting ecology: the north-eastern Pacific, eastern Australasian, and south-western Australasian populations. Through Δ200Hg signatures in shark tissues, we found that atmospheric Hg deposition pathways to the marine environment differed between coastal and offshore habitats. Discrepancies in δ202Hg and Δ199Hg signatures among white sharks provided evidence for intraspecific exposure to distinct sources of marine methylmercury, attributed to population and ontogenetic shifts in foraging habitat and prey composition. We finally observed a strong divergence in Hg accumulation rates between populations, leading to three times higher Hg concentrations in large Australasian sharks compared to north-eastern Pacific sharks, and likely due to different trophic strategies adopted by adult sharks across populations. This study illustrates the variety of Hg exposure sources and bioaccumulation patterns that can be found within a single species and suggests that intraspecific variability needs to be considered when assessing future trajectories of Hg levels in marine predators.
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Affiliation(s)
- Gaël Le Croizier
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France; Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Av. Joel Montes Camarena S/N, Mazatlán, Sin 82040, Mexico.
| | - Jeroen E Sonke
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
| | - Anne Lorrain
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
| | - Marina Renedo
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
| | - Mauricio Hoyos-Padilla
- Pelagios-Kakunjá A.C, Sinaloa 1540, Col. Las Garzas, C.P. 23070 La Paz, B.C.S., Mexico; Fins Attached: Marine Research and Conservation, 19675 Still Glen Drive, Colorado Springs, CO 80908, USA
| | | | - Lauren Meyer
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia; Georgia Aquarium, Atlanta, GA 30313, USA
| | - Charlie Huveneers
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
| | - Paul Butcher
- NSW Department of Primary Industries, National Marine Science Centre, Coffs Harbour, NSW 2450, Australia
| | - Felipe Amezcua-Martinez
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Av. Joel Montes Camarena S/N, Mazatlán, Sin 82040, Mexico
| | - David Point
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
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Determination of Mercury, Methylmercury and Selenium Concentrations in Elasmobranch Meat: Fish Consumption Safety. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020788. [PMID: 35055610 PMCID: PMC8775502 DOI: 10.3390/ijerph19020788] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 11/17/2022]
Abstract
This study measures total mercury (THg), methylmercury (MeHg) and selenium (Se) concentrations in elasmobranch fish from an Italian market with the aim of evaluating the risk-benefit associated with their consumption, using estimated weekly intake (EWI), permissible safety level (MeHgPSL), selenium health benefit value (HBVSe) and monthly consumption rate limit (CRmm) for each species. THg and Se were analysed by atomic absorption spectrometry, while MeHg was determined by HrGc/Ms. THg and MeHg concentrations ranged from 0.61 to 1.25 μg g-1 w.w. and from 0.57 to 0.97 μg g-1 w.w., respectively, whereas Se levels were 0.49-0.65 μg g-1 w.w. In most samples European Community limits for THg were surpassed, while for MeHg none of the fish had levels above the limit adopted by FAO/WHO. EWIs for THg and MeHg in many cases were above the provisional tolerable weekly intakes (PTWIs). MeHgPSL estimate showed that fish should contain approximately 50% of the concentration measured to avoid exceeding the PTWI. Nevertheless, the HBVSe index indicated that solely skates were safe for human consumption (HBVSe = 3.57-6.22). Our results highlight the importance of a constant monitoring of THg and MeHg level in fish, especially in apex predators, to avoid the risk of overexposure for consumers.
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Veron A, Dell'Anno A, Angelidis MO, Aloupi M, Danovaro R, Radakovitch O, Poirier A, Heussner S. Pollutant Pb burden in Mediterranean Centroscymnus coelolepis deep-sea sharks. MARINE POLLUTION BULLETIN 2022; 174:113245. [PMID: 34995885 DOI: 10.1016/j.marpolbul.2021.113245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 12/01/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
We report lead (Pb) analyses in juvenile (n = 37; mean length = 24.7 ± 2.3 cm) and adult (n = 16; mean length = 52.3 ± 9.3 cm) Centroscymnus coelolepis Mediterranean deep-sea sharks that are compared to Pb content in bathy-demersal, pelagic and shallow coastal sharks. Median Pb concentrations of C. coelolepis muscle (0.009-0.056 wet ppm) and liver (0.023-0.061 wet ppm) are among the lowest encountered in shark records. Stable Pb isotope imprints in adult C. coelolepis muscles highlight that most of Pb in C. coelolepis is from human origin. Lead isotopes reveal the persistence of gasoline Pb emitted in the 1970s in low-turnover adult shark's muscle while associated liver imprints are in equilibrium with recent pollutant Pb signatures suggesting an efficient pollutant Pb turnover metabolism. The comparison of Pb distribution between adult and juvenile cohorts suggests the role of dietary exposure and possible maternal offloading of Pb during gestation, likely associated to vitellogenesis in this aplacental viviparous deep-sea shark.
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Affiliation(s)
- A Veron
- CEREGE, UMR7330 CNRS, AMU, IRD, Coll. France, INRAE, Technopole Arbois, BP80, 13545 Aix en Provence cedex 4, France; GEOTOP, Université du Québec à Montréal, CP8888 Centre-Ville, Montréal, QC H3C3P8, Canada.
| | - A Dell'Anno
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - M O Angelidis
- Department of Environment, University of the Aegean, University Hill, 81100 Mytilini, Greece
| | - M Aloupi
- Department of Environment, University of the Aegean, University Hill, 81100 Mytilini, Greece
| | - R Danovaro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
| | - O Radakovitch
- CEREGE, UMR7330 CNRS, AMU, IRD, Coll. France, INRAE, Technopole Arbois, BP80, 13545 Aix en Provence cedex 4, France; Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-SRTE-LRTA, Cadarache, France
| | - A Poirier
- GEOTOP, Université du Québec à Montréal, CP8888 Centre-Ville, Montréal, QC H3C3P8, Canada
| | - S Heussner
- CEFREM, UMR5110 CNRS, Université de Perpignan Via Domitia, Avenue Paul Alduy, 66860 Perpignan, France
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11
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Wosnick N, Chaves AP, Leite RD, Nunes JLS, Saint'Pierre TD, Willmer IQ, Hauser-Davis RA. Nurse sharks, space rockets and cargo ships: Metals and oxidative stress in a benthic, resident and large-sized mesopredator, Ginglymostoma cirratum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 288:117784. [PMID: 34329051 DOI: 10.1016/j.envpol.2021.117784] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/15/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
It is widely recognized that apex predators, such as large sharks with highly migratory behavior, are particularly vulnerable to pollution, mainly due to biomagnification processes. However, in highly impacted areas, mesopredator sharks with resident behavior can be as vulnerable as apex sharks. In this context, this study evaluated cadmium (Cd), mercury (Hg), lead (Pb), and rubidium (Rb) concentrations, as well as the potentially protective effects of selenium (Se) and the behavior of two non-enzymatic biomarkers, metallothionein (MT) and reduced glutathione (GSH), employing the Atlantic nurse shark Ginglymostoma cirratum as a study model and compared the results with other resident benthic sharks, as well as highly mobile apex sharks. Muscle tissue samples from 28 nurse sharks opportunistically sampled from the Brazilian Amazon Coast were analyzed. Lower metal concentrations were observed for Pb, Rb and Se in the rainy season, while statistically significant correlations between metals were observed only between Hg and Cd and Pb and Se. Molar ratio calculations indicate potential protective Se effects against Pb, but not against Cd and Hg. No associations between MT and the determined metals were observed, indicating a lack of detoxification processes via the MT detoxification route. The same was noted for GSH, indicating no induction of this primary cellular antioxidant defense. Our results indicate that benthic/mesopredator sharks with resident behavior are, in fact, as impacted as highly mobile apex predators, with the traditional detoxification pathways seemingly inefficient for the investigated species. Moreover, considering the studied population and other literature data, pollution should be listed as a threat to the species in future risk assessments.
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Affiliation(s)
- Natascha Wosnick
- Programa de Pós-Graduação em Zoologia, Universidade Federal do Paraná, Paraná, Brazil
| | - Ana Paula Chaves
- Analytical and System Toxicology Laboratory, Faculdade de Ciências Farmacêuticas de Ribeirão Preto (USP), São Paulo, Brazil
| | - Renata Daldin Leite
- Programa de Pós-Graduação em Zoologia, Universidade Federal do Paraná, Paraná, Brazil
| | | | | | - Isabel Quental Willmer
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil; Laboratório de Biologia e Tecnologia Pesqueira, Centro de Ciências da Saúde, Instituto de Biologia, Departamento de Biologia Marinha, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil.
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12
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Boldrocchi G, Spanu D, Mazzoni M, Omar M, Baneschi I, Boschi C, Zinzula L, Bettinetti R, Monticelli D. Bioaccumulation and biomagnification in elasmobranchs: A concurrent assessment of trophic transfer of trace elements in 12 species from the Indian Ocean. MARINE POLLUTION BULLETIN 2021; 172:112853. [PMID: 34425367 DOI: 10.1016/j.marpolbul.2021.112853] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/29/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
We provided the first multi-species study investigating the presence and organotropism of trace elements in three tissues of 12 elasmobranch species. Shark species showed comparable TE loads, although milk sharks and juvenile scalloped hammerhead sharks exhibited the highest Cd and Hg levels, respectively. Fins accumulated higher levels of Pb, Co, and Cr; muscles higher V, As, and Hg; livers higher Se and Cd levels. The organotropism of TEs calls for cautious when choosing a tissue to be sampled since certain tissues, like fin clips, do not provide reliable surrogate for the internal loads of some TEs. Strong correlations between essential and toxic TEs indicated detoxification mechanisms, while the TMF provided evidence for Hg, As and Se biomagnification along the food-web. Considering the difficulties in assessing elasmobranchs contamination from different areas, the proposed multi-species approach represents a valuable way to estimate the species-specific accumulation and transfer of pollutants in sharks.
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Affiliation(s)
- G Boldrocchi
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy.
| | - D Spanu
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, Como, Italy
| | - M Mazzoni
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy
| | - M Omar
- Centre d'Etude et de Recherche de Djibouti Route de l'aéroport, Djibouti
| | - I Baneschi
- Institute of Geosciences and Earth Resources - National Research Council of Italy, Pisa, Italy
| | - C Boschi
- Institute of Geosciences and Earth Resources - National Research Council of Italy, Pisa, Italy
| | - L Zinzula
- Centro di Educazione Ambientale e alla Sostenibilità Laguna di Nora, Pula, CA, Italy
| | - R Bettinetti
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio 11, Como, Italy.
| | - D Monticelli
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, Como, Italy.
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13
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Souza-Araujo J, Souza-Junior OG, Guimarães-Costa A, Hussey NE, Lima MO, Giarrizzo T. The consumption of shark meat in the Amazon region and its implications for human health and the marine ecosystem. CHEMOSPHERE 2021; 265:129132. [PMID: 33307506 DOI: 10.1016/j.chemosphere.2020.129132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
Here, we evaluated the levels of As, Hg, Pb, and Cd in shark meat sold along the Amazon Coast of Brazil and used nitrogen stable isotope values to determine trophic position and to assess element biomagnification. From market samples, a total of 13 species were identified via molecular analysis, including those listed as endangered and vulnerable by the IUCN Red List. Arsenic was present in significantly higher concentrations than all other elements, followed by Hg, with the highest mean concentrations recorded in M. higmani (As: 19.46 ± 8.79 μg/g ww) and C. acronotus (Hg: 1.12 ± 0.68 μg/g ww). Lead and Cd were recorded at much lower levels in all species. The EWI of individual elements were above PTWI for all species when considering Hg, seven species for inorganic arsenic (iAs), and one species for Pb. The weekly consumption of 10 species should be reduced to less than 416.39 g, which is equivalent to the daily estimated fish consumption rate in the region. The mean (±SD) δ15N values of species ranged from 10.7 ± 0.51‰ in M. higmani to 14.2 ± 0.59‰ in C. porosus, indicating feeding over >1 trophic level. Arsenic was negatively correlated with δ15N values, while Hg was positively correlated indicating biodilution and biomagnification, respectively. Our results indicate that the sale and consumption of shark meat will expose consumers to potentially harmful levels of iAs and Hg, as well as contributing to the population decline of species including those that are currently categorized as threatened.
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Affiliation(s)
- J Souza-Araujo
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal Do Pará, Av. Perimetral 2651, 66040170, Belém, PA, Brazil.
| | - O G Souza-Junior
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal Do Pará, Av. Perimetral 2651, 66040170, Belém, PA, Brazil.
| | - A Guimarães-Costa
- Instituto de Estudos Costeiros, Universidade Federal Do Pará, Alameda Leandro Ribeiro, 68600 - 000, Bragança, PA, Brazil.
| | - N E Hussey
- Integrative Biology, University of Windsor, Windsor, Ontario, N9B 3P4, Canada.
| | - M O Lima
- Instituto Evandro Chagas. Seção de Meio Ambiente. Rodovia BR-316, Km 7, S/N, 67030000, Ananindeua, PA, Brazil.
| | - T Giarrizzo
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal Do Pará, Av. Perimetral 2651, 66040170, Belém, PA, Brazil.
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14
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Ju YR, Chen CF, Chen CW, Wang MH, Joung SJ, Yu CJ, Liu KM, Tsai WP, Vanson Liu SY, Dong CD. Profile and consumption risk assessment of trace elements in megamouth sharks (Megachasma pelagios) captured from the Pacific Ocean to the east of Taiwan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116161. [PMID: 33302089 DOI: 10.1016/j.envpol.2020.116161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Focusing on 27 rare filter-feeding megamouth sharks (Megachasma pelagios) captured as a by-catch of drift gillnet fishery in the Pacific Ocean to the east of Taiwan, this study analyzes the concentrations of 24 elements in their muscle, discusses the bioaccumulation of each element and the correlation between different elements, and assesses the potential health risks of consuming megamouth shark muscle. Among the 24 elements, mean concentrations of Ga, Ag, Li, Bi, Hg, Co, and Cd were relatively low ranging from 10-3 to 10-1 mg/kg, those of Pb, Ba, Mn, Ni, As, Cr, B, Sr, Cu, and Zn ranged from 10-1-101 mg/kg, and those of Fe, Ca, Al, K, Mg, Ti, and Na were relatively high ranging from 101 to 103 mg/kg. The toxic element content index was most significantly correlated with the concentration of Cu. Hence, this study recommends that the concentration of Cu could be used as an indicator of metal accumulation in megamouth shark muscle. The log bioconcentration factor (BCF) ranged from less than 0 to 7.85 in shark muscle. For elements with a concentration of less than 100 μg/L in seawater, the log BCF was inversely proportional to their concentration in seawater. According to the correlation analysis, the accumulation of elements in muscle of megamouth sharks is primarily affected by the concentrations of dissolved elements in seawater, except that the accumulation of Hg, As, Cu, Ti, Al, and Fe appears to be mainly affected by feeding behaviors. The assessment of the health risk of consuming megamouth shark muscle showed that its total hazard index was greater than 1. This suggests that the long-term or high-frequency consumption of megamouth shark muscle may cause health hazards due to the accumulation of trace elements, particularly those with a large contribution of health risk, including As, Hg, and Cu.
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Affiliation(s)
- Yun-Ru Ju
- Department of Safety, Health and Environmental Engineering, National United University, Miaoli, 36063, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Ming-Huang Wang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Shoou-Jeng Joung
- Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Chi-Ju Yu
- Department of Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Kwang-Ming Liu
- Institute of Marine Affairs and Resource Management, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Wen-Pei Tsai
- Department of Fisheries Production and Management, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Shang Yin Vanson Liu
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan.
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15
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Shipley ON, Lee CS, Fisher NS, Sternlicht JK, Kattan S, Staaterman ER, Hammerschlag N, Gallagher AJ. Metal concentrations in coastal sharks from The Bahamas with a focus on the Caribbean Reef shark. Sci Rep 2021; 11:218. [PMID: 33420176 PMCID: PMC7794238 DOI: 10.1038/s41598-020-79973-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 12/10/2020] [Indexed: 12/28/2022] Open
Abstract
Over the last century anthropogenic activities have rapidly increased the influx of metals and metalloids entering the marine environment, which can bioaccumulate and biomagnify in marine top consumers. This may elicit sublethal effects on target organisms, having broad implications for human seafood consumers. We provide the first assessment of metal (Cd, Pb, Cr, Mn, Co, Cu, Zn, As, Ag, and THg) and metalloid (As) concentrations in the muscle tissue of coastal sharks from The Bahamas. A total of 36 individual sharks from six species were evaluated, spanning two regions/study areas, with a focus on the Caribbean reef shark (Carcharhinus perezi), and to a lesser extent the tiger shark (Galeocerdo cuvier). This is due their high relative abundance and ecological significance throughout coastal Bahamian and regional ecosystems. Caribbean reef sharks exhibited some of the highest metal concentrations compared to five other species, and peaks in the concentrations of Pb, Cr, Cu were observed as individuals reached sexual maturity. Observations were attributed to foraging on larger, more piscivorous prey, high longevity, as well a potential slowing rate of growth. We observed correlations between some metals, which are challenging to interpret but may be attributed to trophic level and ambient metal conditions. Our results provide the first account of metal concentrations in Bahamian sharks, suggesting individuals exhibit high concentrations which may potentially cause sublethal effects. Finally, these findings underscore the potential toxicity of shark meat and have significant implications for human consumers.
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Affiliation(s)
- Oliver N Shipley
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, 11794, USA.
| | - Cheng-Shiuan Lee
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, 11794, USA
- New York State Center for Clean Water Technology, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Nicholas S Fisher
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, 11794, USA
| | | | - Sami Kattan
- Beneath the Waves, PO Box 126, Herndon, VA, USA
| | | | - Neil Hammerschlag
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, 33149, USA
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16
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Le Croizier G, Lorrain A, Sonke JE, Hoyos-Padilla EM, Galván-Magaña F, Santana-Morales O, Aquino-Baleytó M, Becerril-García EE, Muntaner-López G, Ketchum J, Block B, Carlisle A, Jorgensen SJ, Besnard L, Jung A, Schaal G, Point D. The Twilight Zone as a Major Foraging Habitat and Mercury Source for the Great White Shark. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:15872-15882. [PMID: 33238094 DOI: 10.1021/acs.est.0c05621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The twilight zone contains the largest biomass of the world's ocean. Identifying its role in the trophic supply and contaminant exposure of marine megafauna constitutes a critical challenge in the context of global change. The white shark (Carcharodon carcharias) is a threatened species with some of the highest concentrations of neurotoxin methylmercury (MeHg) among marine top predators. Large white sharks migrate seasonally from coastal habitats, where they primarily forage on pinnipeds, to oceanic offshore habitats. Tagging studies suggest that while offshore, white sharks may forage at depth on mesopelagic species, yet no biochemical evidence exists. Here, we used mercury isotopic composition to assess the dietary origin of MeHg contamination in white sharks from the Northeast Pacific Ocean. We estimated that a minimum of 72% of the MeHg accumulated by white sharks originates from the consumption of mesopelagic prey, while a maximum of 25% derives from pinnipeds. In addition to highlighting the potential of mercury isotopes to decipher the complex ecological cycle of marine predators, our study provides evidence that the twilight zone constitutes a crucial foraging habitat for these large predators, which had been suspected for over a decade. Climate change is predicted to expand the production of mesopelagic MeHg and modify the mesopelagic biomass globally. Considering the pivotal role of the twilight zone is therefore essential to better predict both MeHg exposure and trophic supply to white sharks, and effectively protect these key vulnerable predators.
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Affiliation(s)
- Gaël Le Croizier
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
| | - Anne Lorrain
- Univ Brest, CNRS, Ifremer, LEMAR, 29280 Plouzané, France
| | - Jeroen E Sonke
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
| | - E Mauricio Hoyos-Padilla
- Pelagios-Kakunjá A.C., Sinaloa 1540, Col. Las Garzas, 23070 La Paz, Baja California Sur, México
- Fins Attached: Marine Research and Conservation, 19675 Still Glen Drive, Colorado Springs, Colorado 80908, United States
| | - Felipe Galván-Magaña
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n., 23096 La Paz, Baja California Sur, México
| | | | - Marc Aquino-Baleytó
- Pelagios-Kakunjá A.C., Sinaloa 1540, Col. Las Garzas, 23070 La Paz, Baja California Sur, México
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n., 23096 La Paz, Baja California Sur, México
| | - Edgar E Becerril-García
- Pelagios-Kakunjá A.C., Sinaloa 1540, Col. Las Garzas, 23070 La Paz, Baja California Sur, México
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n., 23096 La Paz, Baja California Sur, México
| | - Gádor Muntaner-López
- Pelagios-Kakunjá A.C., Sinaloa 1540, Col. Las Garzas, 23070 La Paz, Baja California Sur, México
- Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Av. IPN s/n., 23096 La Paz, Baja California Sur, México
| | - James Ketchum
- Pelagios-Kakunjá A.C., Sinaloa 1540, Col. Las Garzas, 23070 La Paz, Baja California Sur, México
| | - Barbara Block
- Hopkins Marine Station, Stanford University, Pacific Grove, California 93950, United States
| | - Aaron Carlisle
- School of Marine Science and Policy, University of Delaware, Lewes, Delaware 19958, United States
| | - Salvador J Jorgensen
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Lucien Besnard
- Univ Brest, CNRS, Ifremer, LEMAR, 29280 Plouzané, France
| | - Armelle Jung
- Des Requins et Des Hommes (DRDH), BLP/Technopole Brest-Iroise, 15 rue Dumont d'Urville, Plouzané 29860, France
| | | | - David Point
- UMR Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), 14 avenue Edouard Belin, 31400 Toulouse, France
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17
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Somerville R, Fisher M, Persson L, Ehnert-Russo S, Gelsleichter J, Bielmyer-Fraser G. Analysis of Trace Element Concentrations and Antioxidant Enzyme Activity in Muscle Tissue of the Atlantic Sharpnose Shark, Rhizoprionodon terraenovae. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 79:371-390. [PMID: 32865634 DOI: 10.1007/s00244-020-00753-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Metals occur naturally in the environment; however, anthropogenic practices have greatly increased metal concentrations in waterways, sediments, and biota. Metals pose health risks to marine organisms and have been associated with oxidative stress, which can lead to protein denaturation, DNA mutations, and cellular apoptosis. Sharks are important species ecologically, recreationally, and commercially. Because they occupy a high trophic level, assessing muscle tissue metal concentrations in sharks may reflect metal transfer in marine food webs. In this study, concentrations of cadmium, copper, lead, nickel, selenium, silver, and zinc were measured in the muscle of Rhizoprionodon terraenovae (Atlantic sharpnose shark) from 12 sites along the coast of the southeastern United States. Activities of antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase) also were examined in the muscle tissue of R. terraenovae. A total of 165 samples were analyzed, and differences in trace element bioaccumulation and enzyme activity were observed across sites. R. terraenovae samples collected from South Florida and South Carolina had the highest cumulative trace element concentrations whereas those collected from North Carolina and Alabama had the lowest cumulative concentrations. Trace element concentrations in shark muscle tissue were significantly correlated to antioxidant enzyme activity, particularly with glutathione peroxidase, suggesting that this enzyme may serve as a non-lethal, biomarker of metal exposure in R. terraenovae. This is one of the most extensive studies providing reference levels of trace elements and oxidative stress enzymes in a single elasmobranch species within the U.S.
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Affiliation(s)
- Rachel Somerville
- Jacksonville University, 2800 University Blvd N, Jacksonville, FL, 32211, USA.
| | - Maya Fisher
- Jacksonville University, 2800 University Blvd N, Jacksonville, FL, 32211, USA
| | - Louise Persson
- Jacksonville University, 2800 University Blvd N, Jacksonville, FL, 32211, USA
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18
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Le Croizier G, Lorrain A, Sonke JE, Jaquemet S, Schaal G, Renedo M, Besnard L, Cherel Y, Point D. Mercury isotopes as tracers of ecology and metabolism in two sympatric shark species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114931. [PMID: 32590319 DOI: 10.1016/j.envpol.2020.114931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/27/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
In coastal ecosystems, top predators are exposed to a wide variety of nutrient and contaminant sources due to the diversity of trophic webs within inshore marine habitats. Mercury contamination could represent an additional threat to shark populations that are declining worldwide. Here we measured total mercury, carbon and nitrogen isotopes, as well as mercury isotopes, in two co-occurring shark species (the bull shark Carcharhinus leucas and the tiger shark Galeocerdo cuvier) and their potential prey from a coastal ecosystem of the western Indian Ocean (La Réunion Island). Our primary goals were to (i) determine the main trophic Hg sources for sharks and (ii) better characterize their diet composition and foraging habitat. Hg isotope signatures (Δ199Hg and δ202Hg) of shark prey suggested that bull sharks were exposed to methylmercury (MeHg) produced in offshore epipelagic waters, while tiger sharks were exposed to offshore mesopelagic MeHg with additional microbial transformation in slope sediments. Δ199Hg values efficiently traced the ecology of the two predators, demonstrating that bull sharks targeted coastal prey in shallow waters while tiger sharks were mainly foraging on mesopelagic species in the deeper waters of the island slope. Unexpectedly, we found a positive shift in δ202Hg (>1‰) between sharks and their prey, leading to high δ202Hg values in the two shark species (e.g. 1.91 ± 0.52‰ in bull sharks). This large shift in δ202Hg indicates that sharks may display strong MeHg demethylation abilities, possibly reflecting evolutionary pathways for mitigating their MeHg contamination.
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Affiliation(s)
- Gaël Le Croizier
- Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), UMR 5563 CNRS/IRD/Université Paul Sabatier, 14 avenue Edouard Belin, 31400, Toulouse, France.
| | - Anne Lorrain
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | - Jeroen E Sonke
- Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), UMR 5563 CNRS/IRD/Université Paul Sabatier, 14 avenue Edouard Belin, 31400, Toulouse, France
| | - Sébastien Jaquemet
- Laboratoire ENTROPIE, UMR 9220 CNRS/IRD/Université de La Réunion, 15 Avenue René Cassin, BP 92003, 97744, Saint-Denis, La Réunion, France
| | - Gauthier Schaal
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | - Marina Renedo
- Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), UMR 5563 CNRS/IRD/Université Paul Sabatier, 14 avenue Edouard Belin, 31400, Toulouse, France
| | - Lucien Besnard
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280, Plouzané, France
| | - Yves Cherel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 du CNRS-La Rochelle Université, 79360, Villiers-en-Bois, France
| | - David Point
- Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées (OMP), UMR 5563 CNRS/IRD/Université Paul Sabatier, 14 avenue Edouard Belin, 31400, Toulouse, France
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19
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de Paula Gutiérrez BF, Agudelo CAR. Fish as bioindicators: coal and mercury pollution in Colombia's ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27541-27562. [PMID: 32418107 DOI: 10.1007/s11356-020-09159-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Mining in Colombia affects 488,672 ha (298,391 in coal mining and 190,281 in gold mining). However, Colombia has insufficient studies on mining and its repercussions, which limits estimates of mining impacts on ecosystems and the human population. Due to the rise of mining activities in Colombia, the negative impacts generated by coal and Hg will also continue to increase. This review analyzes national information levels on coal and Hg in island/coastal/marine as well as freshwater ecosystems and human groups using fishery resources as a framework. This is because fish are the main source of animal protein in marine coastal-island and mainland communities. Here, 15 of 32 Colombian departments have records on total mercury (THg) in water, sediments, fish, and human communities. Around 205 ton/year of mercury is discharged into the ecosystem. In human hair for example (15.3 to 50.15 μg/g), mercury exceeds the international maximum levels allowed (ILA) and the national standard (5.0 μg/g). Mercury levels in freshwater fish show 3.3 μg/g of THg and levels in marine and coastal-island fish are 1.2 μg/g THg exceeding the ILA (0.5 μg/g) standard for fish that will be consumed. Carnivorous species have a THg between 0.04 and 2.55 μg/g suggesting bioaccumulation and magnification of heavy metals. These findings were then compared with available international information.
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Affiliation(s)
| | - César Augusto Ruiz Agudelo
- Doctoral Program in Environmental Sciences and Sustainability, Jorge Tadeo Lozano - Bogotá University, Carrera 4 # 22-61, Bogotá, Colombia.
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20
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Sall ML, Fall B, Diédhiou I, Dièye EH, Lo M, Diaw AKD, Gningue-Sall D, Raouafi N, Fall M. Toxicity and Electrochemical Detection of Lead, Cadmium and Nitrite Ions by Organic Conducting Polymers: A Review. CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s42250-020-00157-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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21
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Boldrocchi G, Monticelli D, Butti L, Omar M, Bettinetti R. First concurrent assessment of elemental- and organic-contaminant loads in skin biopsies of whale sharks from Djibouti. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 722:137841. [PMID: 32199374 DOI: 10.1016/j.scitotenv.2020.137841] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 02/16/2020] [Accepted: 03/08/2020] [Indexed: 06/10/2023]
Abstract
The Gulf of Tadjoura (Djibouti) is an important site where the whale shark (Rhincodon typus Smith, 1828) aggregates seasonally. Because of the proximity to the port of Djibouti that is located along one of the busiest shipping areas in the world, whale sharks are potentially exposed to relatively high levels of trace elements and organochlorines. To assess their contamination status, concentrations of 15 trace elements, DDTs and PCBs were concurrently assessed for the first time in skin biopsies of 20 whale sharks. Additionally, 12 zooplankton samples were collected and analyzed for trace elements content. Concentration of As, Cu, Zn and Se were higher than in previous studies on this species. Whale shark samples exceeded the maximum allowable limits for foodstuffs for Cr, Pb Se, Cd and Zn. Results from this study suggests that Cr, Ni and Mo may biomagnify in this species. With regard to PCBs, the predominant congener were Tetra-CB, accounting for 41% of total PCBs and Penta-CB for 23%, while for DDTs, the predominant metabolite was DDE contributing for 51% of total compounds. The maximum residue limit for DDTs and for the ind-PCBs in fish set by U.S. EPA and by the EU regulation, respectively, was exceeded in 62% of whale sharks. Moreover, the p,p'DDE/ΣDDT ratios were higher than the critical value of 0.6, indicating possible recent inputs of technical DDTs in the area. This study suggests some concerns for the contamination status of whale sharks in Djibouti and, since major threats for this species include bycatch and illegal fisheries, highlights some level of risk from the exposure to elemental- and organic-contaminant via shark consumption.
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Affiliation(s)
- G Boldrocchi
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio, 11 22100 Como, Italy.
| | - D Monticelli
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - L Butti
- Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100 Como, Italy
| | - Moussa Omar
- Centre d' Etude et de Recherche de Djibouti Route de l'aéroport, Djibouti, Djibouti
| | - R Bettinetti
- Department of Human Sciences, Innovation and Territory, University of Insubria, Via Valleggio, 11 22100 Como, Italy.
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22
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Medina-Morales SA, Corro-Espinosa D, Escobar-Sánchez O, Delgado-Alvarez CG, Ruelas-Inzunza J, Frías-Espericueta MG, Jara-Marini ME, Páez-Osuna F. Mercury (Hg) and selenium (Se) content in the shark Mustelus henlei (Triakidae) in the northern Mexican Pacific. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:16774-16783. [PMID: 32133613 DOI: 10.1007/s11356-020-08198-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
Mercury and selenium were assessed in Mustelus henlei, which is a carnivorous predatory shark that is important for the coastal communities of the northern Mexican Pacific (NMP). Sixty-two individuals were sampled; muscle and liver were isolated and analyzed by atomic absorption spectrophotometry. The mean Hg concentrations (wet weight) obtained for muscle (0.08 ± 0.10 μg g-1) and liver (0.09 ± 0.26 μg g-1) were below the allowed limits (< 1.0 μg g-1 Hg). The average Se concentration was 0.03 ± 0.01 μg g-1 in muscle and 0.13 ± 0.05 μg g-1 in liver. The Se/Hg molar ratio of muscle was 1.83; however, the selenium health benefit value (HBVSe) was of 0.08. We calculated that an adult man (70 kg), an adult woman (60 kg), and a child (16 kg) could consume 1595, 838, and 223 g/week of M. henlei muscle, respectively, without risks to health. In conclusion, the concentrations and molar ratio of Hg and Se in M. henlei muscle mean that consumption of this shark's meat does not represent neither a benefit nor a public health risk.
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Affiliation(s)
- Sergio Alonzo Medina-Morales
- Facultad de Ciencias del Mar (FACIMAR), Universidad Autónoma de Sinaloa (UAS), Paseo Claussen S/N. Col. Los Pinos, 82000, Mazatlán, Sinaloa, Mexico
| | - David Corro-Espinosa
- Centro Regional de Investigaciones Acuícolas y Pesqueras de Mazatlán, INAPESCA, Calzada Sábalo-Cerritos S/N, Contiguo al Estero El Yugo, 82112, Mazatlán, Sinaloa, Mexico
| | - Ofelia Escobar-Sánchez
- Facultad de Ciencias del Mar (FACIMAR), Universidad Autónoma de Sinaloa (UAS), Paseo Claussen S/N. Col. Los Pinos, 82000, Mazatlán, Sinaloa, Mexico.
- Dirección de Cátedras CONACYT, CONACYT, Av. Insurgentes Sur 1582, Col Crédito Constructor, Del. Benito Juárez, 03940, Mexico City, Mexico.
| | | | - Jorge Ruelas-Inzunza
- Sección Ambiental, Instituto Tecnológico de Mazatlán, Corsario 1, No. 203, Col. Urías, 82070, Mazatlán, Sinaloa, Mexico
| | - Martin Gabriel Frías-Espericueta
- Facultad de Ciencias del Mar (FACIMAR), Universidad Autónoma de Sinaloa (UAS), Paseo Claussen S/N. Col. Los Pinos, 82000, Mazatlán, Sinaloa, Mexico
| | - Martin Enrique Jara-Marini
- Centro de Investigación en Alimentación y Desarrollo, A.C. Carretera Gustavo Astiazarán Rosas 46, Colonia La Victoria, 83304, Hermosillo, Sonora, Mexico
| | - Federico Páez-Osuna
- Universidad Nacional Autónoma de México, Instituto de Ciencias del Mar y Limnología, P.O. Box 811, 82040, Mazatlán, Sinaloa, Mexico
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Ruelas-Inzunza J, Amezcua F, Coiraton C, Páez-Osuna F. Cadmium, mercury, and selenium in muscle of the scalloped hammerhead Sphyrna lewini from the tropical Eastern Pacific: Variation with age, molar ratios and human health risk. CHEMOSPHERE 2020; 242:125180. [PMID: 31698208 DOI: 10.1016/j.chemosphere.2019.125180] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 10/11/2019] [Accepted: 10/20/2019] [Indexed: 06/10/2023]
Abstract
With the aim of assessing health risk to shark consumers, cadmium, mercury, and selenium were measured in muscle of Sphyrna lewini from four coastal states (Baja California Sur, Sinaloa, Nayarit, and Colima) in western Mexico. According to length of specimens, three age modes were found: juveniles and neonates (the majority of the individuals), preadults and adults. Average concentrations (μg g-1 dry weight) in all the studied individuals followed the order cadmium (0.06), selenium (0.94), and mercury (1.56). The mean concentrations of cadmium and mercury increased significantly (p < 0.001) with mean length of specimens. Overall, hazard quotient and hazard index values were below one so there is no health risk to consumers. According to molar ratios of Hg and Se in the edible portion (muscle) of sharks, and depending on the areas of collection, individuals from Baja California Sur might not be beneficial to consumers.
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Affiliation(s)
- Jorge Ruelas-Inzunza
- Instituto Tecnológico de Mazatlán, Calle Corsario 1, No. 203, Col. Urías, 82070, Mazatlán, Sinaloa, Mexico.
| | - Felipe Amezcua
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, 82040, Mazatlán, Sinaloa, Mexico
| | - Claire Coiraton
- Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Av. Ciudad Universitaria 3000, Coyoacán, Mexico City, 04510, Mexico
| | - Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Joel Montes Camarena s/n, 82040, Mazatlán, Sinaloa, Mexico
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24
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Pei F, Wang Y, Fang Y, Li P, Yang W, Ma N, Ma G, Hu Q. Concentrations of heavy metals in muscle and edible offal of pork in Nanjing city of China and related health risks. J Food Sci 2020; 85:493-499. [PMID: 31985835 DOI: 10.1111/1750-3841.15014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 10/28/2019] [Accepted: 11/14/2019] [Indexed: 02/03/2023]
Abstract
The concentrations of heavy metals, such as chromium (Cr), arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb), in different muscles and edible offal of consumed pork from the city of Nanjing and related health risks were evaluated. The results showed that the detected Hg concentrations from 6 of 80 samples exceeded the maximum allowable concentration (GB 2762-2017). Moreover, most of the edible offal, especially the kidneys, contained more heavy metals than the other parts, although the concentrations among the samples were significantly different (P < 0.05). In addition, the health risk evaluation revealed that the estimated daily intake of all the samples was far below the recommended limit, and all the target hazard quotients and total target hazard quotients were less than 1, which is considered safe for human health. Nevertheless, the Hg concentrations over the acceptable limit should receive sufficient attention, considering the long-term consumption of pork. PRACTICAL APPLICATION: Currently, no reports have been available on the heavy metal assessment of pork, though pork is widely consumed in many non-Muslim communities. In this study, the concentrations of heavy metals in different muscles and edible offal of consumed pork were determined and their related health risks were evaluated. This study will provide a significant reference to understand the quality and safety of pork in China or other similar developing countries.
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Affiliation(s)
- Fei Pei
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Yueying Wang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Yong Fang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Peng Li
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Wenjian Yang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Ning Ma
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Gaoxing Ma
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
| | - Qiuhui Hu
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing Univ. of Finance and Economics, Nanjing, 210023, China
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25
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Sallam KI, Abd-Elghany SM, Mohammed MA. Heavy Metal Residues in Some Fishes from Manzala Lake, Egypt, and Their Health-Risk Assessment. J Food Sci 2019; 84:1957-1965. [PMID: 31242536 DOI: 10.1111/1750-3841.14676] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 05/04/2019] [Accepted: 05/08/2019] [Indexed: 11/26/2022]
Abstract
A total of 600 freshly caught fish samples (200 each of Nile tilapia, flathead grey mullet, and African catfish) were collected from Manzala Lake, Egypt, and analyzed for determination of heavy metal residues using an atomic absorption spectrophotometer. Metal concentrations (µg/g wet weight) were detected in all examined samples in quantities of 0.045, 0.0145, and 0.017 µg/g for Hg; 0.511, 0.621, and 0.568 µg/g for As; 0.704, 0.635, and 0.64 µg/g for Pb; and 0.024, 0.006, and 0.020 µg/g for Cd in Nile tilapia, flathead grey mullet, and African catfish, respectively. The mean concentrations of Hg, Pb, and Cd among the three fish species tested followed the order Nile tilapia > African catfish > flathead grey mullet; meanwhile, As concentration followed the order flathead grey mullet > African catfish > Nile tilapia. The contamination levels of Hg and Cd showed significant differences between summer and winter in the three different fish species examined. Both the mullet and catfish tested revealed significant negative correlations between fish size and their residual levels of Hg, Pb, and Cd. Health-risk assessment indices suggesting that consuming such fishes from Manzala Lake could have a potential health hazard to consumers.
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Affiliation(s)
- Khalid Ibrahim Sallam
- Authors are with Dept. of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura Univ., Mansoura, 35516, Egypt
| | - Samir Mohammed Abd-Elghany
- Authors are with Dept. of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura Univ., Mansoura, 35516, Egypt
| | - Mahmoud Ahmed Mohammed
- Authors are with Dept. of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura Univ., Mansoura, 35516, Egypt
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26
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Firth DC, Salie K, O'Neill B, Hoffman LC. Monitoring of trace metal accumulation in two South African farmed mussel species, Mytilus galloprovincialis and Choromytilus meridionalis. MARINE POLLUTION BULLETIN 2019; 141:529-534. [PMID: 30955765 DOI: 10.1016/j.marpolbul.2019.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Mussels pose health risks to consumers through accumulation of trace metals from the ocean. Saldanha Bay, South Africa, has heavy industry and international shipping, creating concerns over pollution levels for aquaculture facilities. Samples of C. meridionalis and M. galloprovincialis were collected from mussel rafts over two-years and analysed for trace metal content using Inductively Coupled Plasma Mass Spectrometry. Aluminium, Cr, Fe, Zn, Cd and Pb were higher in M. galloprovincialis, while C. meridionalis accumulated more Cu and Mn. Temporal fluctuations occurred for Fe and As concentrations in C. meridionalis, and Fe, As, Hg and Pb in M. galloprovincialis. Arsenic exceeded South African regulatory limits (3 mg/kg) once in each species (max = 3.4 mg/kg w.w.). Lead concentrations in M. galloprovincialis were within EU regulatory limits for bivalves (1.5 mg/kg) but exceeded SA regulatory limits for fish (0.5 mg/kg) four times. Overall, farmed mussels from Saldanha Bay were determined to be safe for human consumption.
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Affiliation(s)
- D C Firth
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7600, South Africa
| | - K Salie
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7600, South Africa.
| | - B O'Neill
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7600, South Africa
| | - L C Hoffman
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7600, South Africa; Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Coopers Plains, QLD 4108, Australia.
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27
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Terrazas-López R, Arreola-Mendoza L, Galván-Magaña F, S B S, M P J. Understanding the antagonism of Hg and Se in two shark species from Baja California South, México. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:202-209. [PMID: 30196220 DOI: 10.1016/j.scitotenv.2018.08.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Rafael Terrazas-López
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Laura Arreola-Mendoza
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico.
| | - Felipe Galván-Magaña
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Sujitha S B
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico
| | - Jonathan M P
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico
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28
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Saher NU, Kanwal N. Assessment of some heavy metal accumulation and nutritional quality of shellfish with reference to human health and cancer risk assessment: a seafood safety approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:5189-5201. [PMID: 30607839 DOI: 10.1007/s11356-018-3764-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
This study was conducted to assess the proximate analysis (protein, carbohydrate, lipid, and moisture content) and concentration levels of metals (Zn, Cu, Cd, Pb, and Cr) in the muscles of selected shellfish (Portunus reticulatus, P. segnis, P. sanguinolentus, Scylla olivaceae, Penaeus monodon, and P. indicus) species. The concentration of metals showed significant difference (p > 0.05) among species. The detected concentrations of the analyzed heavy metals were below the daily intake and legal limits set by national and international standards. The THQs and CR index were calculated to evaluate the risk estimation of the metal contamination associated with the human health. The THQ values of all metals were below 1 in all species, indicated that there is no risk of adverse health effect, but the risk of elevated intakes of heavy metals adversely affecting food safety for the studied species. The CR index indicated that Cd and Pb caused the greatest cancer risk. The correlation and multivariate (principle component analysis) among metal concentration and nutritional quality were also evaluated. The carbohydrate and moisture showed the positive correlation (p > 0.05) with metals. The biochemical results of the present work clearly indicate that there was a significant difference in the muscles of shellfish. It was concluded that more effective controls should be focused on Cd and Pb to reduce pollution for quality and seafood safety concern.
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Affiliation(s)
- Noor Us Saher
- Centre of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan.
| | - Nayab Kanwal
- Centre of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan
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29
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Ding B, Liu C, Wu Q, Wang Y, Li L, Yang H. A Label-free and Highly Sensitive Fluorescence Strategy for Mercury Ion Detection Based on Exonuclease III-aided Recycling Amplification. ANAL SCI 2018. [PMID: 29526891 DOI: 10.2116/analsci.34.259] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, we describe a simple and highly sensitive fluorescence strategy of mercury ions based on exonuclease III (Exo III)-aided target recycling amplification to ensure sensitivity. With an ultra high sensitivity (1 pM), our strategy has been simple and cost-effective, which does not need any artificial modification fluorescence groups, and can be carried out in a pot. It also shows excellent selectivity. Therefore, our new method provides an effective platform for mercury-ion detection.
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Affiliation(s)
- Baomiao Ding
- Jingchu Food Research and Development Center, College of Life Science, Yangtze University
| | - Chenguang Liu
- Edible and Medicinal Fungi Research Center, College of Life Science, Yangtze University
| | - Qinghua Wu
- Jingchu Food Research and Development Center, College of Life Science, Yangtze University
| | - Yun Wang
- Edible and Medicinal Fungi Research Center, College of Life Science, Yangtze University
| | - Li Li
- Edible and Medicinal Fungi Research Center, College of Life Science, Yangtze University
| | - Hualin Yang
- Edible and Medicinal Fungi Research Center, College of Life Science, Yangtze University
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30
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Fakhri Y, Saha N, Miri A, Baghaei M, Roomiani L, Ghaderpoori M, Taghavi M, Keramati H, Bahmani Z, Moradi B, Bay A, Pouya RH. Metal concentrations in fillet and gill of parrotfish (Scarus ghobban) from the Persian Gulf and implications for human health. Food Chem Toxicol 2018; 118:348-354. [PMID: 29782897 DOI: 10.1016/j.fct.2018.05.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 05/05/2018] [Accepted: 05/17/2018] [Indexed: 12/16/2022]
Abstract
Despite the benefits of seafood's consumption, the bioaccumulation of metals in fish can endanger consumers' health. This study analyzed lead (Pb), mercury (Hg), Arsenic (As), and Cadmium (Cd) concentrations in fillet and gill of parrotfish (Scarus ghobban) using flame atomic adsorption spectroscopy (FAAS). The potential non-carcinogenic and carcinogenic health risks due to consumption of Scarus ghobban fillet were assessed by estimating average target hazard quotient (THQ) and total target hazard quotient (TTHQ) and Incremental Lifetime Cancer Risk cancer risk (ILCR) of the analyzed metals. This study indicated that Cd, Pb, As and Hg concentrations were significantly (p < 0.05) lower than Food and Agriculture Organization (FAO) and national standard limits. The meal concentrations (μg/kg dry weight) in both fillet and gill were ranked as follows Pb > Cd > As > Hg. THQ and TTHQ were lower than 1 for adults and children, indicating that consumers were not at considerable non-carcinogenic risk. However, ILCR value for As was greater than 10-4, indicating that consumers are at carcinogenic risk. Overall, this research highlighted that although the consumption of parrotfish from the Persian Gulf does not pose non-carcinogenic health risks, carcinogenic risks derived from toxic As can be detrimental for local consumers.
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Affiliation(s)
- Yadolah Fakhri
- Department of Environmental Health Engineering, Student Research Committee, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Narottam Saha
- School of Earth and Environmental Sciences, The University of Queensland, Queensland, Australia
| | - Ali Miri
- Department of Nutrition, School of Health, Zabol University of Medical Sciences, Zabol, Iran
| | - Mehdi Baghaei
- Department of Environmental Engineering-Water and Wastewater, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran.
| | - Laleh Roomiani
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
| | - Mansour Ghaderpoori
- Department of Environmental Health Engineering, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mahmoud Taghavi
- Department of Environmental Health Engineering, School of Public Health, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Hassan Keramati
- Department of Environmental Health Engineering, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran
| | - Zohreh Bahmani
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Bigard Moradi
- Department of Health Public, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Abotaleb Bay
- Environmental Health Research Center, Golstan University of Medical Sciences, Golstan, Iran.
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Azizi M, Seidi S, Rouhollahi A. A novel N,N′-bis(acetylacetone)ethylenediimine functionalized silica-core shell magnetic nanosorbent for manetic dispersive solid phase extraction of copper in cereal and water samples. Food Chem 2018; 249:30-37. [DOI: 10.1016/j.foodchem.2017.12.085] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 11/03/2017] [Accepted: 12/27/2017] [Indexed: 10/18/2022]
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Gbogbo F, Arthur-Yartel A, Bondzie JA, Dorleku WP, Dadzie S, Kwansa-Bentum B, Ewool J, Billah MK, Lamptey AM. Risk of heavy metal ingestion from the consumption of two commercially valuable species of fish from the fresh and coastal waters of Ghana. PLoS One 2018; 13:e0194682. [PMID: 29570730 PMCID: PMC5865748 DOI: 10.1371/journal.pone.0194682] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 03/07/2018] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND The need to evaluate the human health safety of fishery resources remain urgent in the mist of the ever-increasing fear of heavy metal toxicity from the consumption of Ghana's fisheries resource, as a consequence of pollution from several anthropogenic activities including artisanal gold mining. Nevertheless, the bigeye grunt (Brachydeuterus auritus) and Bagrid catfish (Chrysichthys nigrodigitatus) remain commercially valuable fish species in West Africa and continue to attract high patronage. METHOD Forty-five specimens each of C. nigrodigitatus and B. auritus collected from the Weija Dam and the Tema Fishing Habour in Ghana, between June and September 2016, were analysed for seven heavy metals using Atomic Absorption Spectrometry. RESULT Lead and Cadmium were below detection in all samples while Cu was not detected in B. auritus. Levels of the remaining metals (mg kg-1) were below FAO/WHO maximum permissible limits in fish and occurred in the rank order Se (3.5) > Zn (2.34) > Cu (0.59) > As (0.37) > Hg (0.19) in C. nigrodigitatus and Se (2.97) > Zn (2.28) > Hg (0.31) > As (0.21) in B. auritus. Only As in C. nigrodigitatus recorded Estimated Weekly Intake (EWI) greater than FAO/WHO Provisional Tolerable Weekly Intake (PTWI). Also, As in C. nigrodigitatus and Hg in B. auritus had Targeted Hazard Quotient (THQ) greater than 1 for individuals consuming the fishes on daily basis and therefore, raising concerns. However, for both species of fish, cancer risk of As was 1 in 10,000,000,000 and modified Health Benefits values of Se (HBVSe) were positive indicating the health risks that might accompany Hg exposure would be negated. Since toxicity depends on the concentration and quantity of a pollutant consumed, safe maximum consumption rate of C. nigrodigitatus based on As concentrations was 0.21 mg per day and that of B. auritus was 0.058 mg per day for Hg. With an average of 0.227 kg fish per meal of an adult human, these translated into not more than 24 C. nigrodigitatus and nine (9) B. auritus meals in a month but because fish is consumed at 0.0685 kg per person per day in Ghana, these values respectively translates to 93 and 30 safe days of consumption per month. CONCLUSION At the rate of 0.0685 kg fish per person per day that fish is consumed in Ghana, the consumption of the two species of fish in Ghana would essentially be of little or no consequence to consumers.
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Affiliation(s)
- Francis Gbogbo
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
- * E-mail:
| | - Anna Arthur-Yartel
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Josephine A. Bondzie
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Winfred-Peck Dorleku
- Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Legon, Accra, Ghana
| | - Stephen Dadzie
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Bethel Kwansa-Bentum
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Julliet Ewool
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Maxwell K. Billah
- Department of Animal Biology and Conservation Science, University of Ghana, Legon, Accra, Ghana
| | - Angela M. Lamptey
- Department of Marine and Fisheries Sciences, University of Ghana, Legon, Accra, Ghana
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Adel M, Copat C, Saeidi Asl MR, Conti GO, Babazadeh M, Ferrante M. Bioaccumulation of trace metals in banded Persian bamboo shark (Chiloscyllium arabicum) from the Persian Gulf: A food safety issue. Food Chem Toxicol 2018; 113:198-203. [PMID: 29366870 DOI: 10.1016/j.fct.2018.01.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 01/11/2018] [Accepted: 01/17/2018] [Indexed: 01/05/2023]
Abstract
Persian bamboo shark (Chiloscyllium arabicum) was collected from two sites of the Khozestan province, northern basin of Persian Gulf, with the aim to identify differences in metal concentrations between fishing areas as well as the risk for human health due to consumption of the selected species. We analyzed Zn, Cu, Pb, Hg, Cd and Ni in muscle and liver tissues of specimens from both areas of study using atomic adsorption spectrometry. Statistical elaborations revealed higher bioaccumulation of metals in livers than muscle as well as in the site of worthy of Musa as regards Zn, Pb and Ni than the site of worthy of Darvis, due to the more intensive anthropogenic input. The risk for consumers is low for the most of metals, with the exception of the THQ for Hg, which resulted next to the level of risk with high frequencies of consumption.
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Affiliation(s)
- Milad Adel
- Department of Aquatic Animal Health and Diseases, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
| | - Chiara Copat
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy
| | - Mohammad Reza Saeidi Asl
- Department of Food Science and Technology, Islamic Azad University, Sabzevar Branch, Sabzevar, Iran
| | - Gea Oliveri Conti
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy
| | - Mehdi Babazadeh
- Department of Fisheries, Islamic Azad University, Savadekoh Branch, Savadekoh, Mazandaran, Iran
| | - Margherita Ferrante
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy.
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O'Neill B, Bosch AC, Kerwath SE, Sigge GO, Hoffman LC. Presence, concentration and trends of metals: A baseline study of blacktail (Diplodus sargus capensis) and hottentot (Pachymetopon blochii) along the South African coastline. MARINE POLLUTION BULLETIN 2017; 121:352-356. [PMID: 28602312 DOI: 10.1016/j.marpolbul.2017.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/26/2017] [Accepted: 06/06/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Bernadette O'Neill
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Adina C Bosch
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa; Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Sven E Kerwath
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa; Department of Agriculture Forestry and Fisheries, Private Bag X2, Rogge Bay 8012, South Africa
| | - Gunnar O Sigge
- Department of Food Science, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Louwrens C Hoffman
- Department of Animal Sciences, Faculty of AgriSciences, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.
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Naidoo K, Chuturgoon A, Cliff G, Singh S, Ellis M, Otway N, Vosloo A, Gregory M. Possible maternal offloading of metals in the plasma, uterine and capsule fluid of pregnant ragged-tooth sharks (Carcharias taurus) on the east coast of South Africa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:16798-16805. [PMID: 28567684 DOI: 10.1007/s11356-017-9281-1] [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: 01/11/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
We studied the possible metal offloading onto the progeny of three pregnant female ragged-tooth sharks (Carcharias taurus) (C. taurus). The presences of five metals, i.e. aluminium (Al), arsenic (As), cadmium (Cd), lead (Pb) and selenium (Se) were validated by mass spectrometry in the maternal plasma as well as the intracapsular and uterine fluids (UF) in which embryos develop. Metals were ranked in a decreasing concentration as follows: Plasma: As > Al > Se > Pb > Cd; ICF: As > Se > Al > Cd > Pb and UF: As > Se > Al > Cd > Pb. As was present in the highest concentration in all three sharks. Al, Pb and Cd were found to be the highest within the plasma, while concentrations of Se were similar in all three fluids. These results indicate that C. taurus embryos are exposed to metals during early development, but the impact of this exposure remains unknown. To the best of our knowledge, this is the first investigation to confirm the presence of metals in the fluids that surround the developing C. taurus embryos, a species that is already listed as vulnerable.
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Affiliation(s)
- Kristina Naidoo
- Discipline of Medical Biochemistry, University of KwaZulu-Natal (UKZN), Durban, South Africa
| | - Anil Chuturgoon
- Discipline of Medical Biochemistry, University of KwaZulu-Natal (UKZN), Durban, South Africa.
| | - Geremy Cliff
- KwaZulu-Natal Sharks Board (KZNSB), Umhlanga, South Africa
- Biomedical Resource Unit, University of KwaZulu-Natal (UKZN), Durban, South Africa
| | - Sanil Singh
- Biomedical Resource Unit, University of KwaZulu-Natal (UKZN), Durban, South Africa
| | - Megan Ellis
- Gladstone Ports Corporation, Gladstone, QLD, Australia
| | - Nicholas Otway
- New South Wales Department of Primary Industries, Port Stephens Fisheries Institute, Taylors Beach, NSW, Australia
| | - Andre Vosloo
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal (UKZN), Durban, South Africa
| | - Michael Gregory
- School of Health Sciences, University of KwaZulu-Natal (UKZN), Durban, South Africa
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Maccotta A, Cosentino C, Coccioni R, Frontalini F, Scopelliti G, Caruso A. Distribution of Cr and Pb in artificial sea water and their sorption in marine sediments: an example from experimental mesocosms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:24068-24080. [PMID: 27638807 DOI: 10.1007/s11356-016-7630-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
The uptake of two heavy metals (chromium and lead) in sediments in experimental mesocosms under exposure to different metal concentrations was evaluated by monitoring their concentrations over time both in seawater and in sediment. Two separate experiments under laboratory-controlled conditions were carried out for the two metals. Sediments were collected from a protected natural area characterized by low anthropic influence and were placed in mesocosms that were housed in aquaria each with seawater at a different metal concentration. At pre-established time intervals, seawater and sediment samples were collected from each mesocosm for chemical analyses. Quantification of chromium and lead concentration in seawater and sediment samples was carried out by atomic absorption spectrometer with graphite furnace. Low doses of chromium and lead (<1 mg L-1) do not entail an uptake in sediments and waters. At doses ≥1 mg L-1, evolution of concentrations over time shows significant differences between these two metals: (i) chromium absorption from seawater is twice faster than lead; (ii) lead accumulates in considerable amount in sediments. The different behaviour of the two investigated heavy metals could be ascribed to different interactions existing between metal ions and different components of sediment.
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Affiliation(s)
- A Maccotta
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi 20-22, 90123, Palermo, Italy
| | - Claudia Cosentino
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi 20-22, 90123, Palermo, Italy.
| | - R Coccioni
- Dipartimento di Scienze Pure e Applicate, Università di Urbino "Carlo BO", via Ca' le Suore, 61029, Urbino, Italy
| | - F Frontalini
- Dipartimento di Scienze Pure e Applicate, Università di Urbino "Carlo BO", via Ca' le Suore, 61029, Urbino, Italy
| | - G Scopelliti
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi 20-22, 90123, Palermo, Italy
| | - A Caruso
- Dipartimento di Scienze della Terra e del Mare, Università degli Studi di Palermo, Via Archirafi 20-22, 90123, Palermo, Italy
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Adel M, Oliveri Conti G, Dadar M, Mahjoub M, Copat C, Ferrante M. Heavy metal concentrations in edible muscle of whitecheek shark, Carcharhinus dussumieri (elasmobranchii, chondrichthyes) from the Persian Gulf: A food safety issue. Food Chem Toxicol 2016; 97:135-140. [PMID: 27593900 DOI: 10.1016/j.fct.2016.09.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 10/21/2022]
Abstract
Together with several health benefits, fish meat could lead to heavy metal intoxication of consumers. In this study, we discuss Zn, Cu, Pb, Hg and Cd concentrations in fillets of forty specimens of Carcharhinus dussumieri, analyzed with atomic adsorption spectroscopy (AAS). The potential human health risks due to consumption of C. dussumieri was assessed by estimating average daily intake (EDI) and target hazard quotient (THQ) of metals. The average concentrations of metals measured in this study were (ppm dry weight): Cu 7.49 ± 0.25; Zn 3.47 ± 0.26; Pb 0.12 ± 0.03; Hg 0.028 ± 0.02; Cd 0.11 ± 0.03. Our results showed that no metal exceeded the EC and FAO limits. Cu and Cd accumulate in muscles with a body length (age)-dependent manner. The exposure daily intake of all toxic metals analyzed was found lower than the PTDI provided by WHO and the THQ resulted lower than 1, suggesting no risk for human health derived from consumption.
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Affiliation(s)
- Milad Adel
- Department of Aquatic Animal Health and Diseases, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
| | - Gea Oliveri Conti
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy.
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Masoud Mahjoub
- Department of Aquatic Animal Health and Diseases, Iranian Shrimp Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Bushehr, Iran
| | - Chiara Copat
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy
| | - Margherita Ferrante
- Department of Medical Sciences, Surgical and Advanced Technologies "G.F. Ingrassia"- Hygiene and Public Health, Laboratory of Environmental and Food Hygiene (LIAA), University of Catania, Via S. Sofia, 87, 95123 Catania, Italy
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Terrazas-López R, Arreola-Mendoza L, Galván-Magaña F, Anguiano-Zamora M, Sujitha SB, Jonathan MP. Cadmium concentration in liver and muscle of silky shark (Carcharhinus falciformis) in the tip of Baja California south, México. MARINE POLLUTION BULLETIN 2016; 107:389-392. [PMID: 27016957 DOI: 10.1016/j.marpolbul.2016.03.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/12/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
Cadmium concentrations were determined in the tissues of muscle and liver of Carcharhinus falciformis (silky shark) sampled in Todos Santos, Baja California South, Mexico. This is one of the main shark species for human consumption in Mexico. Results indicate that accumulation of Cd varied in both sexes, based on its metabolism, sex, maturity and other biological characteristics. High Cd values were observed in the liver of adults of male (529.61μgg(-1)) and female (457.43μgg(-1)), whereas, in muscular tissues it was low (0.37μgg(-1)) than the prescribed permissible limits for seafood (0.5μgg(-1)). Substantial correlations were observed between body length and Cd values in adults except young male due to faster growth rate and its metabolism. The study indicated the impact of environmental conditions in the accumulation of Cd and its risk to the food web structure in the marine environment and health hazard for humans.
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Affiliation(s)
- Rafael Terrazas-López
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Polo de Santa Rita, C.P. 23096, La Paz, Baja California Sur, México
| | - Laura Arreola-Mendoza
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P.07340, Distrito Federal, México.
| | - Felipe Galván-Magaña
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Polo de Santa Rita, C.P. 23096, La Paz, Baja California Sur, México
| | - Marlene Anguiano-Zamora
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P.07340, Distrito Federal, México
| | - S B Sujitha
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P.07340, Distrito Federal, México
| | - M P Jonathan
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, C.P.07340, Distrito Federal, México
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Morris T, Avenant-Oldewage A, Lamberth S, Reed C. Shark parasites as bio-indicators of metals in two South African embayments. MARINE POLLUTION BULLETIN 2016; 104:221-228. [PMID: 26856641 DOI: 10.1016/j.marpolbul.2016.01.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 01/14/2016] [Accepted: 01/19/2016] [Indexed: 06/05/2023]
Abstract
Concentrations of metals in the tissues of the sharks Callorhinchus capensis, Rhinobatos annulatus and Rhinobatos blochii collected in False Bay and Saldanha Bay, South Africa, in 2013 were investigated. Metal concentrations in the tissue of the parasites Gyrocotyle plana infecting the spiral intestine of C. capensis and Proleptus obtusus infecting the stomach of R. annulatus and R. blochii were also analysed. G. plana showed accumulation of arsenic (4073.52±5561.54 μg/g), manganese (522.16±578.21 μg/g), lead (64.87±101.7 μg/g), titanium (1821.42±1348.16 μg/g) and zinc (12439.57±9743.60 μg/g). These results when compared to baseline values, showed that accumulation of the metals in G. plana are orders of magnitude higher than those in the surrounding environment and 2 to 6 times the concentration of the surrounding host's tissues. These results show the usefulness of marine endoparasites as early warning indicators of heavy metal pollution.
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Affiliation(s)
- Thomas Morris
- Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7701, South Africa
| | - Annemariè Avenant-Oldewage
- Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Stephen Lamberth
- Fisheries Management, Department of Agriculture, Forestry and Fisheries, Private Bag X2, Rogge Bay, Cape Town 8012, South Africa
| | - Cecile Reed
- Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch, Cape Town 7701, South Africa.
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