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Goossens J, Woillez M, Wright S, Edwards JE, De Putter G, Torreele E, Verhelst P, Sheehan E, Moens T, Reubens J. Elucidating the migrations of European seabass from the southern north sea using mark-recapture data, acoustic telemetry and data storage tags. Sci Rep 2024; 14:13180. [PMID: 38849378 PMCID: PMC11161488 DOI: 10.1038/s41598-024-63347-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024] Open
Abstract
The movement ecology of European seabass, Dicentrarchus labrax, remains poorly understood, especially in the northern ranges of its distribution. To investigate migration patterns of seabass from the southern North Sea, we combined data from different projects from four countries using various tagging techniques. This resulted in 146 recaptures (out of 5598 externally marked seabass), 138 detected animals (out of 162 seabass fitted with an acoustic transmitter) and 76 archived depth and temperature series (out of 323 seabass with an archival tag). Using geolocation modelling, we distinguished different migration strategies, whereby individual fish migrated to the eastern English Channel (15.1%), the western English Channel (28.3%), the Celtic Sea and the norther part of the Bay of Biscay (17.0%), or stayed in the North Sea (39.6%). A high number of seabass exhibited fidelity to the North Sea (90.5% of recaptures, 55.3% for acoustic transmitters and 44.7% of archival tags). Although seabass are generally considered to migrate southwards in winter, a large number of individuals (n = 62) were observed in the southern North Sea, where spawning might potentially occur in a particular deep location along the coast of Norfolk in the UK. Our results highlight the need to consider fine-scaled population structuring in fisheries assessment, and indicate that current seasonal fisheries closures are not aligned with the ecology of seabass in the North Sea.
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Affiliation(s)
- Jolien Goossens
- Department of Biology, Marine Biology Research Group, Krijgslaan 281 - S8, 9000, Ghent, Belgium.
| | - Mathieu Woillez
- DECOD Ecosystem Dynamics and Sustainability, IFREMER, 1625 Route de Sainte-Anne, 29280, Plouzané, France
| | - Serena Wright
- Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT, UK
| | - Jena E Edwards
- Coastal Systems, Royal Netherlands Institute for Sea Research, 1797 SZ, Den Hoorn, The Netherlands
- Aquaculture and Fisheries Group, Wageningen University & Research, 6700 AH, Wageningen, The Netherlands
| | | | - Els Torreele
- Flanders Research Institute for Agriculture, Fisheries and Food, ILVO Marine Research, Jacobsenstraat 1, 8400, Ostend, Belgium
| | - Pieterjan Verhelst
- Research Institute for Nature and Forest (INBO), Havenlaan 88, Bus 73, 1000, Brussels, Belgium
| | - Emma Sheehan
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Tom Moens
- Department of Biology, Marine Biology Research Group, Krijgslaan 281 - S8, 9000, Ghent, Belgium
| | - Jan Reubens
- Flanders Marine Institute, Jacobsenstraat 1, 8400, Ostend, Belgium
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Kalipci E, Cüce H, Ustaoğlu F, Dereli MA, Türkmen M. Toxicological health risk analysis of hazardous trace elements accumulation in the edible fish species of the Black Sea in Türkiye using multivariate statistical and spatial assessment. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 97:104028. [PMID: 36455837 DOI: 10.1016/j.etap.2022.104028] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/15/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
In the current study, the levels of eleven hazardous trace elements (HTEs) were measured in five different fish species frequently consumed in eleven cities along the Black Sea coast of Türkiye. And also the maximum permissible limits (MPLs) specified by international standards are compared to 11 HTEs levels. In addition, human health risk levels from fish consumption were assessed using multiple approaches. The highest metal concentrations of Fe, Mn, Co, Cr, Ni, Cd and Hg were detected in the fish sampled from Samsun city. It was determined that Cu, Zn, Pb and As metal concentrations were the highest in fish sampled from Düzce city. In the demersal Mullus barbatus (MB), the highest quantities of As, Cr, Mn, Fe, Co, Ni, Hg, and Pb were discovered. The highest concentrations of Zn and Cd were found in Engraulis encrasicolus (EE), which is a topminnow fish. The highest concentrations of Cu were found in Sarda sarda (SS), which is a topminnow fish. For all HTEs, the metal hazard index (MPI) and target hazard quotients (THQ) from metal intake by ingesting fish species were less than 1, indicating no risk from consumption. All investigated fish species were acceptable (10-4 to 10-6) in terms of carcinogenic risks (CR) from exposure to inorganic arsenic (iAs). Additionally, because the hazard index (HI) is less than 1, it has been determined that consuming certain fish species will not pose a risk to public health. The predicted daily intakes of HTEs in each fish species were far lower than their corresponding acceptable daily intakes, indicating that consuming fish would not put consumers at risk for health problems from daily intakes of HTEs. In addition, the multivariate statistical analysis justified that HTEs were from anthropogenic and lithogenic origin.
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Affiliation(s)
- Erkan Kalipci
- Deparment of Geomatics Engineering, Giresun University, Giresun 28200, Türkiye.
| | - Hüseyin Cüce
- Deparment of Geomatics Engineering, Giresun University, Giresun 28200, Türkiye
| | - Fikret Ustaoğlu
- Department of Biology, Giresun University, Giresun 28200, Türkiye
| | - Mehmet Ali Dereli
- Deparment of Geomatics Engineering, Giresun University, Giresun 28200, Türkiye
| | - Mustafa Türkmen
- Department of Biology, Giresun University, Giresun 28200, Türkiye
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Godéré M, Marchand P, Vénisseau A, Guiffard I, Leblanc JC, Le Bizec B, Dervilly G. Health risk assessment to polychlorinated naphthalenes dioxin-like compounds in French sea food consumers. CHEMOSPHERE 2022; 308:136563. [PMID: 36167201 DOI: 10.1016/j.chemosphere.2022.136563] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/15/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
There has been a recent revival of interest in some historical contaminants such as polychlorinated naphthalenes (PCNs). However, occurrence data are still lacking in some countries although industrial production of PCNs has been reported. This observation led to the first ever assessment of their presence in fish and seafood products in France in the present work. Their analysis was integrated in an already validated method applied for polychlorinated dibenzodioxins/furans (PCDD/Fs) and polychlorinated biphenyls (PCBs), based on the structural similarity existing between these POPs. Performances of the method (LODs in the range 0.10-0.28 pg g-1 wet weight (ww), LOQs in the range 0.33-0.93 pg g-1 ww), enabled monitoring 69 di-to octachlorinated congeners in a large representative set of fish and seafood samples collected in 2005 in four coastal areas of the French mainland (n > 30). Their systematic presence was demonstrated in all the investigated seafood products, with levels (ΣPCNs in the range 2-440 pg g-1 wet weight) close to those already reported in other European fish and seafood sampled at a similar period. In addition, the robust measurement of almost all possible PCNs (69/75) allowed a fine interpretation of the observed profiles, highlighting in particular the specificities between species and fishing areas. Compared to the PCDD/Fs, PCBs, and polybrominated diphenylethers levels also measured for this set of samples, PCNs were observed as minor contributors to total concentrations (0.05-3.2%). The specific PCN related dietary dioxin-like exposure could be evaluated at 0.028-0.051 pg of toxic equivalent (TEQ) per kg of body weight per week for an adult, based on fish and seafood consumption only. Overall, this study provides the first baseline data on the occurrence of a large number of PCNs in France, which will allow future evaluation of temporal trends and associated risks.
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Affiliation(s)
| | | | | | | | - Jean-Charles Leblanc
- ANSES, Laboratory for Food Safety, University of Paris-Est, 94700, Maisons-Alfort, France
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Ngoubeyou PSK, Wolkersdorfer C, Ndibewu PP, Augustyn W. Toxicity of polychlorinated biphenyls in aquatic environments - A review. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 251:106284. [PMID: 36087490 DOI: 10.1016/j.aquatox.2022.106284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/25/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
The assessment of polychlorinated biphenyls (PCBs) and their congeners resulting from the pollution of all environmental media is inherently related to its persistence and ubiquitous nature. In principle, determination of this class of contaminants are limited to the determination of their concentrations in the various environmental matrices. For solving many problems in this context, knowledge of the emission sources of PCBs, transport pathways, and sites of contamination and biomagnification is of great benefit to scientists and researchers, as well as many regulatory organizations. By far the largest amounts of PCBs, regardless of their discharged points, end up in the soil, sediment and finally in different aquatic environments. By reviewing relevant published materials, the source of origin of PCBs in the environment particularly from different pollution point sources, it is possible to obtain useful information on the nature of different materials that are sources of PCBs, or their concentrations and their toxicity or health effects and how they can be removed from contaminated media. This review focuses on the sources of PCBs in aquatic environments and critically reviews the toxicity of PCBs in aquatic animals and plants. The review also assesses the toxicity equivalency factors (TEFs) of PCBs providing valuable knowledge to other scientists and researchers that enables regulatory laws to be formulated based on selective determination of concentrations regarding their maximum permissible limits (MPLs) allowed. This review also supplies a pool of valuable information useful for designing decontamination technologies for PCBs in media like soil, sediment, and wastewaters.
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Affiliation(s)
| | - Christian Wolkersdorfer
- Tshwane University of Technology, SARChI Chair for Mine Water Treatment, Department of Environmental, Water and Earth Sciences, Private Bag X680, Pretoria, 0001, South Africa
| | - Peter Papoh Ndibewu
- Tshwane University of Technology, Department of Chemistry, Pretoria 0001, South Africa.
| | - Wilma Augustyn
- Tshwane University of Technology, Department of Chemistry, Pretoria 0001, South Africa
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Rahman MS, Akther S, Ahmed ASS, Saha N, Rahman LS, Ahmed MK, Arai T, Idris AM. Distribution and source apportionment of toxic and trace elements in some benthic and pelagic coastal fish species in Karnaphuli River Estuary, Bangladesh: Risk to human health. MARINE POLLUTION BULLETIN 2022; 183:114044. [PMID: 36007270 DOI: 10.1016/j.marpolbul.2022.114044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
The Karnaphuli River is one of the prime and most important streams in the southeastern part of Bangladesh. The favorable water current and the geographic location have rendered the Karnaphuly River estuary a suitable habitat and a breeding ground for diverse fish species. Reversely, this estuary has been polluted by discharges from many point and non-point sources due to its location in the catchment area of a heavily industrialized area, Chattagram port city. However, published research concerning the status of toxic and trace elements in some commercially important benthic and pelagic coastal fish species in Karnaphuli River estuary was not found in the existing literature. Therefore, it's an important field of study on the assessment of toxic and trace elements concentration in the commercially important benthic and pelagic coastal fish species and their health taxation in the Karnaphuli River Estuary. Energy dispersive X-ray fluorescence (ED-XRF) was used to quantify trace metal concentration in edible parts of the fish species. This study revealed that the rank of the trace metals concentration was as follows (mg/kg): Zn (37.1) > Mn (16.12) > V (11.16) > Cu (9.49) > Rb (5.62) > Pb (2.98) > Cr (1.59) > Co (1.17). The F-test showed that a significant difference at 95 % confidence level in the distribution pattern of trace metals concentration among the examined fish species in the study area. The metal pollution index (MPI) in the muscle of fishes were found to be in the following order: L. bata > P. monodon > T. cirratus > M. bleekeri > O. pabda > H. nehereus > L. calcarifer > P. argenteus > P. paradiseus > T. toli, and the MPIs for most of the benthic fish species were higher compared to the pelagic fishes. On the other hand, the examined fish species were significantly bio-accumulative with the highest bio-accumulation factor value for benthic species. The multivariate analysis identified that the sources of the trace metals were associated with anthropogenic activities. For the human health risk assessment concern, estimated daily intake, target hazard quotient and cancer-causing risk were estimated. The results for non-cancer hazardous index values were found to be lower than unity. On the other hand, the total cancer risk data ranging from 1.24E-05 to 1.70E-05 were fallen within the range for the threshold values (1.0E-06 to 1.0E-04). However, considering the suggested values set by the environmental and regulatory agencies, it has been recommended that no significant non-carcinogenic and cancer-causing health risk for humans was seen due to the consumption of the studied fish species.
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Affiliation(s)
- M Safiur Rahman
- Water Quality Research Laboratory, Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh; Air Particulate Research Laboratory, Chemistry Division, Bangladesh Atomic Energy Commission, Shahbag, Dhaka 1000, Bangladesh.
| | - Sharmin Akther
- Department of Oceanography, Faculty of Earth and Environmental Science, University of Dhaka, Dhaka 1000, Bangladesh
| | | | - Narottam Saha
- Sustainable Minerals Institute, Center for Mined Land Rehabilitation, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Lamisa S Rahman
- Faculty of Science, Dalhousie University, 1355 Oxford Street, Halifax, NS B3H 4R2, Canada
| | - Md Kawser Ahmed
- Department of Oceanography, Faculty of Earth and Environmental Science, University of Dhaka, Dhaka 1000, Bangladesh
| | - Takaomi Arai
- Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Abubakr M Idris
- Department of Chemistry, College of Science, King Khalid University, Abha 62529, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 62529, Saudi Arabia
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Lebigre C, Aminot Y, Munschy C, Drogou M, Le Goff R, Briant N, Chouvelon T. Trace metal elements and organic contaminants are differently related to the growth and body condition of wild European sea bass juveniles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 248:106207. [PMID: 35635982 DOI: 10.1016/j.aquatox.2022.106207] [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: 09/22/2021] [Revised: 04/28/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
Chemical contaminants are one of the causes of the ongoing degradation of coastal and estuarine nurseries, key functional habitats in which the juveniles of many marine species grow. As chemical contaminants can cause a decrease in the energy available and induce defence mechanisms reducing the amount of energy allocated to life history traits, quantifying their effect on the fitness of juvenile fish is key to understand their population-level consequences. However, these effects are primarily estimated experimentally or in the wild but on a limited number of contaminants or congeners that do not reflect the wide variety of chemical contaminants to which juvenile fish are exposed. To address this issue, we measured concentrations of 14 trace metal elements (TMEs) and bioaccumulative organic contaminants (OCs) in European sea bass juveniles (1-year-old) from three major French nurseries (Seine, Loire and Gironde estuaries). We tested the hypotheses that (i) levels and profiles of contaminants differed among studied nurseries, and ii) fish growth and body condition (based on morphometric measurements and muscle C:N ratio) were lower in individuals with higher contaminant concentrations. Multivariate analyses showed that each nursery had distinct contaminant profiles for both TMEs and OCs, confirming the specific contamination of each estuary, and the large array of contaminants accumulated by sea bass juveniles. Increasing concentrations in some TMEs were associated to decreased growth, and TMEs were consistently related to lower fish body condition. The effect of OCs was more difficult to pinpoint possibly due to operational constraints (i.e., analyses on pooled fish) with contrasting results (i.e., higher growth and decreased body condition). Overall, this study shows that chemical contaminants are related to lower fish growth and body condition at an early life stage in the wild, an effect that can have major consequences if sustained in subsequent ages and associated with a decline in survival and/or reproductive success.
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Affiliation(s)
- Christophe Lebigre
- UMR DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, ZI Pointe du Diable, Plouzané F-29280, France.
| | - Yann Aminot
- IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, Nantes F-44000, France
| | - Catherine Munschy
- IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, Nantes F-44000, France
| | - Mickaël Drogou
- UMR DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, ZI Pointe du Diable, Plouzané F-29280, France
| | - Ronan Le Goff
- UMR DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAE, Institut Agro, ZI Pointe du Diable, Plouzané F-29280, France
| | - Nicolas Briant
- IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, Nantes F-44000, France
| | - Tiphaine Chouvelon
- IFREMER, CCEM Contamination Chimique des Écosystèmes Marins, Nantes F-44000, France; Observatoire Pelagis, UAR 3462, La Rochelle Université - CNRS, La Rochelle F-17000, France
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Arisekar U, Shakila RJ, Shalini R, Jeyasekaran G, Padmavathy P. Effect of household culinary processes on organochlorine pesticide residues (OCPs) in the seafood (Penaeus vannamei) and its associated human health risk assessment: Our vision and future scope. CHEMOSPHERE 2022; 297:134075. [PMID: 35218780 DOI: 10.1016/j.chemosphere.2022.134075] [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: 12/14/2021] [Revised: 02/05/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Food safety is crucial in today's competitive trading market, as it directly affects human health and promotes seafood exports. The effects of thermal processing (boiling, frying, grilling, and microwave cooking) on pesticide residues (PR) in P. vannamei were assessed. The PR in raw and processed shrimp ranged from 0.007 to 0.703 μg/kg for uncooked/raw, not detected (ND) to 0.917 μg/kg for boiled, ND to 0.506 μg/kg for fried, ND to 0.573 μg/kg for grilled and ND to 0.514 μg/kg for microwave cooked shrimps. The Endrin, endosulfan sulfate, and heptachlor were predominant PR found in the raw and processed shrimp. The PR content in raw and cooked shrimps were below the maximum residue limits (MRL) set by the Codex Alimentarius Commission (2021) and the European Commission (86/363/1986 and 57/2007). The estimated daily intake (EDI) of PR from raw and processed shrimps were below the ADI prescribed by CAC. The hazard quotient (HQ) and hazard ratio (HR) values were <1, indicating no non-carcinogenic or carcinogenic health implications through shrimp consumption. The estimated maximum allowable shrimp consumption rate (CRlim) suggests an adult can eat >100 shrimp meals/month, which is over the USEPA's (2000)recommendation of >16 meals/month without health issues. The Effect of thermal processing was detected in the following order: boiling < grilling < frying < microwave cooking. The processing factor (PF < 0.7), paired t-test (t < 0.05), Tukey post hoc (p < 0.05) test, Bray-Curtis similarity index, and matrix plot exhibited that all the four thermal processing methods have a considerable impact on pesticides in the processed shrimps. But frying (59.4%) and microwave cooking (60.3%) reduced PR far beyond boiling (48.8%) and grilling (51.3%). Hence, we recommend frying and microwave processing are better methods for minimizing PR in seafood than boiling or grilling.
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Affiliation(s)
- Ulaganathan Arisekar
- Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tuticorin, 628 008, Tamil Nadu, India.
| | - Robinson Jeya Shakila
- Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tuticorin, 628 008, Tamil Nadu, India.
| | - Rajendran Shalini
- Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Department of Fish Quality Assurance and Management, Fisheries College and Research Institute, Tuticorin, 628 008, Tamil Nadu, India
| | - Geevaretnam Jeyasekaran
- Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Nagapattinam, 611002, Tamil Nadu, India
| | - Pandurangan Padmavathy
- Department of Aquatic Environment and Management, Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University (TNJFU), Tuticorin, 628 008, Tamil Nadu, India
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Matouke MM, Sanusi HM, Eneojo AS. Interaction of copper with titanium dioxide nanoparticles induced hematological and biochemical effects in Clarias gariepinus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67646-67656. [PMID: 34255260 DOI: 10.1007/s11356-021-15148-y] [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: 06/26/2020] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
The increasing demand for engineered nanomaterials induces potential harmful impact into aquatic ecosystems and is a great concern for freshwater biodiversity. The present study showed that enhancing toxic property of titanium dioxide nanoparticles (TiO2 NPs) with copper (Cu) was responsible for the disruption of hormonal, hematological, and biochemical activities, in Clarias gariepinus. The study revealed that C. gariepinus intravenously injected with safe concentrations of TiO2 NPs (3μg g) and Cu (2.5 μg g) alone and binary mixtures (TiO2 NPs (3μg g) + Cu (2.5μg g)) for a period of 96h remarkably changed hormonal activities and hematological and biochemical indices of the fish. Our findings indicated that both chemicals accumulated in vital organs (the brain, serum, heart, gonad, liver, gills, serum, and kidney) and the presence of TiO2 NPs enhanced the bioavailability of copper. Fish exposed to TiO2 NPs alone significantly increased thyroxine (T4) and further decreased triidothyronine (T3). In addition, the binary mixtures showed antagonistic effects on both hormones. The hematological indices (WBC, RBC, HGt, MCV, MCH, MCHC, and Hct) were altered in all treatment groups. Decrease in WBC, RBC, HGt, Hct, and MCV were observed. Furthermore, the co-exposure further decreased WBC (60.28%), RBC (47.10%), HGt (75.99%), Hct (25.34%), and MCV (16.18%), in contrast, MCH and MCHC increased by of 2 folds, respectively. Metabolic enzymes alanine aminotransferase (ALT), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH) showed significant (p<0.05) increase, with additive effect in co-exposure. However, the alkaline phosphatase (ALP) activity decreased significantly in co-exposure. Significant (p<0.05) decrease of antioxidants, superoxide dismutase (SOD), glutathione transferase (GST), catalase (CAT), and metallothionein (Met) was observed in all the treatments with additive effect of 64.9%, 30.77%, and 91.31% in SOD, GST, and CAT, respectively. However, there was an increase in lipid peroxidation (MDA) in all treated fish. The results indicate that combined mixture influences the accumulation, hormonal, hematological, and biochemical factors which could affect the health of the fish.
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Squadrone S, Abete MC, Miedico O, Gavinelli S, Neri B, Busico F, Berretta S, Carosielli L, Carrabs G, Chiaravalle AE. Poaching of endangered species in Mediterranean Sea: Alopias vulpinus. MARINE POLLUTION BULLETIN 2021; 168:112456. [PMID: 33991986 DOI: 10.1016/j.marpolbul.2021.112456] [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: 01/07/2021] [Revised: 04/27/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
A thresher shark poached by fishermen in the stretch of sea between the island of Ponza and the coast of Terracina (Lazio, Central Italy, Mediterranean Sea) and confiscated by the Italian health authorities was evaluated for the presence of chemical contaminants. Hg mean concentration of 2.1 mg kg-1 was found in muscle; speciation analysis confirmed it was almost in the toxic organic form of MeHg (2.0 mg kg-1). The Se:Hg molar ratio was <1 not protective against the toxic effect of Hg. 137Cs was detected at a mean concentration of 0.53 Bq kg-1, and 40K, radioisotope of natural origin was found at 91 Bq kg-1. Dioxins and PCBs were found in the common thresher shark at mean concentrations of 0.012 and 0.088 pg TEQ-WHO g-1 w.w. while NDL PCBs at 4.5 ng g-1 w.w., lower than limits set by European Regulation. The major concern is constituted by the presence of Hg twice the maximum limit set by EU Regulation, then the consumption of thresher shark flesh should be strongly discouraged.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY.
| | - Maria Cesarina Abete
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY
| | - Oto Miedico
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Centro di Referenza Nazionale Radioattività, via Manfredonia 20, 71121 Foggia, ITALY
| | - Stefania Gavinelli
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY
| | - Bruno Neri
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | - Fabio Busico
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | - Sesto Berretta
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | | | | | - Antonio E Chiaravalle
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Centro di Referenza Nazionale Radioattività, via Manfredonia 20, 71121 Foggia, ITALY
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Tang D, Liu X, He H, Cui Z, Gan H, Xia Z. Distribution, sources and ecological risks of organochlorine compounds (DDTs, HCHs and PCBs) in surface sediments from the Pearl River Estuary, China. MARINE POLLUTION BULLETIN 2020; 152:110942. [PMID: 32479303 DOI: 10.1016/j.marpolbul.2020.110942] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/24/2020] [Accepted: 01/25/2020] [Indexed: 06/11/2023]
Abstract
The Pearl River Estuary is an important sink of organochlorine compounds (OCs), and OC pollution levels in surface sediments remain largely unknown at present. We collected and analysed residual DDTs, HCHs and PCBs of 45 surface sediments from the Pearl River Estuary in 2017. The values of DDTs (1.83 to 6.98 ng·g-1) and HCHs (0.43 to 2.14 ng·g-1) were higher in the Humen outlet, and the values of PCBs (4.6 to 187.4 ng·g-1) were higher in the coastal areas of Shenzhen. The DDTs and HCHs have generally decreased while the PCBs have been rapidly increasing in recent decades. The DDTs might originate from technical DDT and dicofol. The major source of HCHs was lindane. The main potential sources of PCBs were increased industrial products, ship painting, E-waste disassembly, maricultural and agricultural pollution. The total PCBs and DDTs had medium ecological risks according to the sediment quality guidelines.
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Affiliation(s)
- Dehao Tang
- Guangzhou Marine Geological Survey, Guangzhou 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China.
| | - Xingjian Liu
- Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China; CAS Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Guangzhou 510301, China; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, (ISEE, CAS), Guangzhou 510301, China
| | - Haijun He
- Guangzhou Marine Geological Survey, Guangzhou 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| | - Zhenang Cui
- Guangzhou Marine Geological Survey, Guangzhou 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| | - Huayang Gan
- Guangzhou Marine Geological Survey, Guangzhou 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China
| | - Zhen Xia
- Guangzhou Marine Geological Survey, Guangzhou 510075, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China.
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Zanuttini C, Gally F, Scholl G, Thomé JP, Eppe G, Das K. High pollutant exposure level of the largest European community of bottlenose dolphins in the English Channel. Sci Rep 2019; 9:12521. [PMID: 31515499 PMCID: PMC6742642 DOI: 10.1038/s41598-019-48485-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 07/16/2019] [Indexed: 11/10/2022] Open
Abstract
The objective of this study was to assess the levels of persistent organic pollutants (POPs) and mercury (T-Hg) in the blubber and skin, respectively, of the free-ranging bottlenose dolphins, Tursiops truncatus, from the Normanno-Breton Gulf, one of the largest identified coastal population in Europe. Among all the POPs analysed in this study, the ∑NDL-PCBs were the most abundant compounds found in the blubber (mean: 1.33 × 105-0.65 × 105 ng.g-1 lipid weight (lw) for males and females respectively), followed by ∑DDX (1.11 × 104-4.67 × 103 ng.g-1 lw) > ∑DL-PCBs (8.06 × 103-2.62 × 103ng.g-1 lw) > ∑PBDEs (1.95 × 103-0.64 × 103ng.g-1 lw) > dieldrin (1.86 × 103-0.18 × 103 ng.g-1 lw) > ∑endosulfan (405-62 ng.g-1 lw) > HCB (86-52 ng.g-1 lw) > ∑HCHs (47-60 ng.g-1 lw) > ∑chlordane (24-0.97 ng.g-1 lw) > ∑PCDFs (0.3-0.1 ng.g-1 lw) > ∑PCDDs (0.06-0.05 ng.g-1 lw). The T-Hg concentrations were highly variable between individuals (2.45 × 103 ng.g-1 to 21.3 × 103 ng.g-1 dry weight, dw). The reported concentrations are among the highest reported for cetaceans. We strongly recommend that the Normanno-Breton Gulf be a special area of conservation (cSAC) candidate because it contains the last large European population of bottlenose dolphins (rare or threatened within a European context) designated under the EC Habitats Directive.
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Affiliation(s)
- Cyrielle Zanuttini
- Groupe d'Etude des Cétacés du Cotentin (GECC), Place des Justes, 50130, Cherbourg-Octeville, France
| | - François Gally
- Groupe d'Etude des Cétacés du Cotentin (GECC), Place des Justes, 50130, Cherbourg-Octeville, France
| | - Georges Scholl
- CART, UR MolSys B6c, University of Liège, 4000, Liège, Belgium
| | - Jean-Pierre Thomé
- CART-LEAE, Freshwater and Oceanic sciences Unit of reSearch (FOCUS- CART-LEAE), B6C, University of Liège, Liège, Belgium
| | - Gauthier Eppe
- CART, UR MolSys B6c, University of Liège, 4000, Liège, Belgium
| | - Krishna Das
- Freshwater and Oceanic sciences Unit of reSearch (FOCUS-Oceanology), B6C, University of Liège, Liège, Belgium.
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12
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Marengo M, Durieux EDH, Ternengo S, Lejeune P, Degrange E, Pasqualini V, Gobert S. Comparison of elemental composition in two wild and cultured marine fish and potential risks to human health. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 158:204-212. [PMID: 29704791 DOI: 10.1016/j.ecoenv.2018.04.034] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/13/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Among all available species, fish are a powerful model for risk-benefit assessments to study the effects of contaminants on human health. Gilthead seabream (Sparus aurata, Linnaeus 1758) and european seabass (Dicentrarchus labrax, Linnaeus 1758) are two species of great economic importance, representing very large production volumes in the Mediterranean. The objective of this study is (1) to analyze the concentrations of Trace Elements (TE) between wild and cultured seabream and seabass specimens, (2) to compare the determined concentrations with other studies, and (3) to increase the data about the potential risks to human health. Our results point to significant intra- and interspecies-specific differences between wild and cultured fish for several trace elements. Several strong and moderate inter-elemental correlations in fish muscle were observed through correlation analysis. In our study, the mean levels of trace elements were still below the standard safety values for fish intended for human consumption. The same results were reached for all the parameters analyzed (international legal limits, estimated weekly intake, provisional tolerable weekly intake, target hazard quotient, target cancer risk), with trace element levels in fish below those that could pose a risk to human health. Consequently, these fish can be considered safe for human consumption. A better understanding of the levels of trace elements in fish would also better inform consumers about the potential risks of exposure to contaminants.
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Affiliation(s)
- Michel Marengo
- Université de Liège, Centre MARE, Laboratoire d'Océanologie, Sart-Tilman, B6c, 4000 Liège, Belgium; Université de Corse Pascal Paoli, UMR 6134 CNRS-UCPP Sciences pour l'Environnement, 20250 Corte, France; STAtion de REcherche Sous-marines et Océanographiques (STARESO), 20260 Calvi, France.
| | - Eric D H Durieux
- Université de Corse Pascal Paoli, UMR 6134 CNRS-UCPP Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pascal Paoli, UMS 3514 CNRS-UCPP Plateforme marine Stella Mare, 20620 Biguglia, France.
| | - Sonia Ternengo
- Université de Corse Pascal Paoli, UMR 6134 CNRS-UCPP Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pascal Paoli, UMS 3514 CNRS-UCPP Plateforme marine Stella Mare, 20620 Biguglia, France.
| | - Pierre Lejeune
- STAtion de REcherche Sous-marines et Océanographiques (STARESO), 20260 Calvi, France.
| | - Elise Degrange
- Université de Liège, Centre MARE, Laboratoire d'Océanologie, Sart-Tilman, B6c, 4000 Liège, Belgium.
| | - Vanina Pasqualini
- Université de Corse Pascal Paoli, UMR 6134 CNRS-UCPP Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pascal Paoli, UMS 3514 CNRS-UCPP Plateforme marine Stella Mare, 20620 Biguglia, France.
| | - Sylvie Gobert
- Université de Liège, Centre MARE, Laboratoire d'Océanologie, Sart-Tilman, B6c, 4000 Liège, Belgium; STAtion de REcherche Sous-marines et Océanographiques (STARESO), 20260 Calvi, France.
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Le Croizier G, Lacroix C, Artigaud S, Le Floch S, Raffray J, Penicaud V, Coquillé V, Autier J, Rouget ML, Le Bayon N, Laë R, Tito De Morais L. Significance of metallothioneins in differential cadmium accumulation kinetics between two marine fish species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:462-476. [PMID: 29414371 DOI: 10.1016/j.envpol.2018.01.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 12/26/2017] [Accepted: 01/02/2018] [Indexed: 06/08/2023]
Abstract
Impacted marine environments lead to metal accumulation in edible marine fish, ultimately impairing human health. Nevertheless, metal accumulation is highly variable among marine fish species. In addition to ecological features, differences in bioaccumulation can be attributed to species-related physiological processes, which were investigated in two marine fish present in the Canary Current Large Marine Ecosystem (CCLME), where natural and anthropogenic metal exposure occurs. The European sea bass Dicentrarchus labrax and Senegalese sole Solea senegalensis were exposed for two months to two environmentally realistic dietary cadmium (Cd) doses before a depuration period. Organotropism (i.e., Cd repartition between organs) was studied in two storage compartments (the liver and muscle) and in an excretion vector (bile). To better understand the importance of physiological factors, the significance of hepatic metallothionein (MT) concentrations in accumulation and elimination kinetics in the two species was explored. Accumulation was faster in the sea bass muscle and liver, as inferred by earlier Cd increase and a higher accumulation rate. The elimination efficiency was also higher in the sea bass liver compared to sole, as highlighted by greater biliary excretion. In the liver, no induction of MT synthesis was attributed to metal exposure, challenging the relevance of using MT concentration as a biomarker of metal contamination. However, the basal MT pools were always greater in the liver of sea bass than in sole. This species-specific characteristic might have enhanced Cd biliary elimination and relocation to other organs such as muscle through the formation of more Cd/MT complexes. Thus, MT basal concentrations seem to play a key role in the variability observed in terms of metal concentrations in marine fish species.
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Affiliation(s)
- Gaël Le Croizier
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France.
| | - Camille Lacroix
- Centre of Documentation, Research and Experimentation on Accidental Water Pollution (CEDRE), 715 rue Alain Colas, CS 41836, Brest 29218-Cedex 2, France
| | - Sébastien Artigaud
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Stéphane Le Floch
- Centre of Documentation, Research and Experimentation on Accidental Water Pollution (CEDRE), 715 rue Alain Colas, CS 41836, Brest 29218-Cedex 2, France
| | - Jean Raffray
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Virginie Penicaud
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Valérie Coquillé
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Julien Autier
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Marie-Laure Rouget
- Institut Universitaire Européen de la Mer (IUEM), Université de Bretagne Occidentale (UBO), CNRS UMS 3113, 29280 Plouzané, France
| | - Nicolas Le Bayon
- Ifremer, Unité de Physiologie Fonctionnelle des Organismes Marins, LEMAR UMR 6539, Ifremer, Centre de Brest, Laboratoire PFOM/ARN, BP 70, 29280 Plouzané, France
| | - Raymond Laë
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
| | - Luis Tito De Morais
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, BP 70, 29280 Plouzané, France
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14
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Sobral MMC, Cunha SC, Faria MA, Ferreira IM. Domestic Cooking of Muscle Foods: Impact on Composition of Nutrients and Contaminants. Compr Rev Food Sci Food Saf 2018; 17:309-333. [PMID: 33350087 DOI: 10.1111/1541-4337.12327] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/20/2017] [Accepted: 11/24/2017] [Indexed: 01/16/2023]
Abstract
Meat and fish are muscle foods rich in valuable nutrients, such as high-quality proteins, vitamins, and minerals, and, in the case of fish, also unsaturated fatty acids. The escalation of meat and fish production has increased the occurrence of pesticide and antibiotic residues, as result of pest control on feed crops, and antibiotics used to fight infections in animals. Meat and fish are usually cooked to enrich taste, soften texture, increase safety, and improve nutrient digestibility. However, the impact of cooking on nutritional properties and formation of deleterious compounds must be understood. This review summarizes studies, published in the last decade, that have focused on how domestic cooking affects: (i) composition of nutrients (protein, fatty acids, vitamins, and minerals); (ii) antibiotic and pesticide residue contents; and (iii) the formation of cooking-induced contaminants (heterocyclic aromatic amines, polycyclic aromatic hydrocarbons, and thermal degradation products of antibiotics and pesticides). Cooking affects the nutritional composition of meat and fish; frying is the cooking method that causes the greatest impact. Cooking may reduce the pesticide and antibiotic residues present in contaminated raw meat and fish; however, it may result in the formation of degradation products of unknown identity and toxicity. Control of cooking time and temperature, use of antioxidant-rich marinades, and avoiding the dripping of fat during charcoal grilling can reduce the formation of cooking-induced contaminants.
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Affiliation(s)
- M Madalena C Sobral
- LAQV/REQUIMTE, Dept. de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia - Univ. do Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Sara C Cunha
- LAQV/REQUIMTE, Dept. de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia - Univ. do Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Miguel A Faria
- LAQV/REQUIMTE, Dept. de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia - Univ. do Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Isabel Mplvo Ferreira
- LAQV/REQUIMTE, Dept. de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia - Univ. do Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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15
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Cransveld A, Amouroux D, Tessier E, Koutrakis E, Ozturk AA, Bettoso N, Mieiro CL, Bérail S, Barre JPG, Sturaro N, Schnitzler J, Das K. Mercury Stable Isotopes Discriminate Different Populations of European Seabass and Trace Potential Hg Sources around Europe. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:12219-12228. [PMID: 28942649 DOI: 10.1021/acs.est.7b01307] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Our study reports the first data on mercury (Hg) isotope composition in marine European fish, for seven distinct populations of the European seabass, Dicentrarchus labrax. The use of δ202Hg and Δ199Hg values in SIBER enabled us to estimate Hg isotopic niches, successfully discriminating several populations. Recursive-partitioning analyses demonstrated the relevance of Hg stable isotopes as discriminating tools. Hg isotopic values also provided insight on Hg contamination sources for biota in coastal environment. The overall narrow range of δ202Hg around Europe was suggested to be related to a global atmospheric contamination while δ202Hg at some sites was linked either to background contamination, or with local contamination sources. Δ199Hg was related to Hg levels of fish but we also suggest a relation with ecological conditions. Throughout this study, results from the Black Sea population stood out, displaying a Hg cycling similar to fresh water lakes. Our findings bring out the possibility to use Hg isotopes in order to discriminate distinct populations, to explore the Hg cycle on a large scale (Europe) and to distinguish sites contaminated by global versus local Hg source. The interest of using Hg sable isotopes to investigate the whole European Hg cycle is clearly highlighted.
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Affiliation(s)
- Alice Cransveld
- Laboratory for Oceanology - MARE, University of Liège , 15 Allée du 6 Août, 4000 Liège, Belgium
| | - David Amouroux
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR5254 , 64000, PAU, France
| | - Emmanuel Tessier
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR5254 , 64000, PAU, France
| | - Emmanuil Koutrakis
- Fisheries Research Institute , Hellenic Agricultural Organisation, 640 07 Nea Peramos, Kavala Greece
| | - Ayaka A Ozturk
- Faculty of Fisheries, Istanbul University , Istanbul, Turkey
| | - Nicola Bettoso
- Agenzia Regionale per la Protezione dell'Ambiente del Friuli Venezia Giulia (ARPA FVG) , via A. La Marmora 13, 34139 Trieste, Italy
| | - Cláudia L Mieiro
- CESAM and Departamento de Biologia, Universidade de Aveiro , Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sylvain Bérail
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR5254 , 64000, PAU, France
| | - Julien P G Barre
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR5254 , 64000, PAU, France
| | - Nicolas Sturaro
- Laboratory for Oceanology - MARE, University of Liège , 15 Allée du 6 Août, 4000 Liège, Belgium
| | - Joseph Schnitzler
- Laboratory for Oceanology - MARE, University of Liège , 15 Allée du 6 Août, 4000 Liège, Belgium
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation , 25761 Büsum, Schleswig-Holstein Germany
| | - Krishna Das
- Laboratory for Oceanology - MARE, University of Liège , 15 Allée du 6 Août, 4000 Liège, Belgium
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Dupuy C, Galland C, Pichereau V, Sanchez W, Riso R, Labonne M, Amara R, Charrier G, Fournier M, Laroche J. Assessment of the European flounder responses to chemical stress in the English Channel, considering biomarkers and life history traits. MARINE POLLUTION BULLETIN 2015; 95:634-645. [PMID: 25499967 DOI: 10.1016/j.marpolbul.2014.11.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 10/31/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
A multi-biomarker approach was developed to evaluate responses of European flounder (Platichthys flesus) in three contrasted estuaries over the English Channel: the Canche (pristine site), Tamar (heavy metals and PAHs contamination) and Seine (heavily pollution with a complex cocktail of contaminants). The condition factor and several biomarkers of the immune system, antioxidant enzymes, energetic metabolism and detoxification processes were investigated in young-of-the-year (0+) and one-year-old (1+) flounder. Results underlined the difference between the pristine site and the Seine estuary which showed a lower condition factor, a modulation of the immune system, a higher Cytochrome C oxidase activity, and an up-regulation of BHMT expression. The moderate biomarker responses in the Tamar fish could be linked to the specific contamination context of this estuary. Flounder life history traits were analyzed by otolith microchemistry, in order to depict how the fish use their habitat and thus respond to chemical stress in estuaries.
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Affiliation(s)
- Célie Dupuy
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Institut National de la Recherche Scientifique, Institut Armand-Frappier (INRS-IAF), 31 Boulevard des Prairies, Laval, Québec H7V 1B7, Canada.
| | - Claire Galland
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Vianney Pichereau
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Wilfried Sanchez
- Institut National de l'Environnement Industriel et des Risques, Pôle "Dangers et impact sur le vivant", Unité d'écotoxicologie in vitro et in vivo, Parc Technologique ALATA, 60550 Verneuil en Halatte, France
| | - Ricardo Riso
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Maylis Labonne
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France; Centre IRD de Bretagne, BP 70, 29280 Plouzané, France
| | - Rachid Amara
- Université Lille Nord de France, ULCO LOG, CNRS UMR 8187, F-62930 Wimereux, France
| | - Grégory Charrier
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
| | - Michel Fournier
- Institut National de la Recherche Scientifique, Institut Armand-Frappier (INRS-IAF), 31 Boulevard des Prairies, Laval, Québec H7V 1B7, Canada
| | - Jean Laroche
- Université Européenne de Bretagne, Université de Bretagne Occidentale, UMR 6539 CNRS/UBO/IRD/Ifremer, Laboratoire des Sciences de l'Environnement Marin LEMAR, Institut Universitaire Européen de la Mer, 29280 Plouzané, France
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17
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Abstract
Polychlorinated biphenyls (PCBs) are widespread persistent anthropogenic contaminants that can accumulate in tissues of fish. The toxicity of PCBs and their transformation products has been investigated for nearly 50 years, but there is a lack of consensus regarding the effects of these environmental contaminants on wild fish populations. The objective of this review is to critically examine these investigations and evaluate publicly available databases for evidence of effects of PCBs in wild fish. Biological activity of PCBs is limited to a small proportion of PCB congeners [e.g., dioxin-like PCBs (DL-PCBs)] and occurs at concentrations that are typically orders of magnitude higher than PCB levels detected in wild fish. Induction of biomarkers consistent with PCB exposure (e.g., induction of cytochrome P450 monooxygenase system) has been evaluated frequently and shown to be induced in fish from some environments, but there does not appear to be consistent reports of damage (i.e., biomarkers of effect) to biomolecules (i.e., oxidative injury) in these fish. Numerous investigations of endocrine system dysfunction or effects on other organ systems have been conducted in wild fish, but collectively there is no consistent evidence of PCB effects on these systems in wild fish. Early life stage toxicity of DL-PCBs does not appear to occur at concentrations reported in wild fish embryos, and results do not support an association between PCBs and decreased survival of early life stages of wild fish. Overall, there appears to be little evidence that PCBs have had any widespread effect on the health or survival of wild fish.
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Affiliation(s)
- T B Henry
- a School of Life Sciences, John Muir Building, Heriot-Watt University , Edinburgh, EH14 4AS , UK.,b The University of Tennessee Center for Environmental Biotechnology , 676 Dabney Hall, Knoxville , Tennessee 37996, USA.,c Department of Forestry , Wildlife and Fisheries, The University of Tennessee , 274 Ellington Plant Sciences Building, Knoxville , Tennessee , 37996, USA
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18
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Loaiza I, Hurtado D, Miglio M, Orrego H, Mendo J. Tissue-specific Cd and Pb accumulation in Peruvian scallop (Argopecten purpuratus) transplanted to a suspended and bottom culture at Sechura Bay, Peru. MARINE POLLUTION BULLETIN 2015; 91:429-440. [PMID: 25444617 DOI: 10.1016/j.marpolbul.2014.09.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 09/09/2014] [Accepted: 09/29/2014] [Indexed: 06/04/2023]
Abstract
In order to understand the effect of different culture systems on Cd and Pb accumulation, suspended long-line and bottom cultures of Argopecten purpuratus were conducted during January until April 2010 (120 days). The Cd tissue levels were the highest at the middle of the experiment (30-d till 70-d) for suspended-cultured individuals, while bottom-cultured individuals showed an increasing trend. Gonad Pb levels were also higher during the same period for all cultures, while adductor muscle exhibited no considerable variations. Cd and Pb tissue concentrations were mainly greater in deeper cultures. There were no significant differences in Cd and Pb accumulation between individual sizes. The Cd and Pb levels in edible tissue (gonad+adductor muscle) did not exceed the EU and FDA maximum levels. Based on the target hazard quotient (THQ) and the provisional tolerance weekly intake (PTWI), no risk (THQ<1 and %PTWI<30) was found for human consumption.
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Affiliation(s)
- Iván Loaiza
- Department of Fisheries, Management and Environment, Faculty of Fisheries, La Molina National Agrarian University (UNALM), Haras de la Molina, La Molina, Lima 12, Peru.
| | - Daniela Hurtado
- Department of Fisheries, Management and Environment, Faculty of Fisheries, La Molina National Agrarian University (UNALM), Haras de la Molina, La Molina, Lima 12, Peru
| | - Maria Miglio
- Department of Fisheries, Management and Environment, Faculty of Fisheries, La Molina National Agrarian University (UNALM), Haras de la Molina, La Molina, Lima 12, Peru
| | - Henry Orrego
- Department of Fisheries, Management and Environment, Faculty of Fisheries, La Molina National Agrarian University (UNALM), Haras de la Molina, La Molina, Lima 12, Peru
| | - Jaime Mendo
- Department of Fisheries, Management and Environment, Faculty of Fisheries, La Molina National Agrarian University (UNALM), Haras de la Molina, La Molina, Lima 12, Peru
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Di Poi C, Evariste L, Serpentini A, Halm-Lemeille MP, Lebel JM, Costil K. Toxicity of five antidepressant drugs on embryo-larval development and metamorphosis success in the Pacific oyster, Crassostrea gigas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:13302-13314. [PMID: 24122267 DOI: 10.1007/s11356-013-2211-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 10/01/2013] [Indexed: 06/02/2023]
Abstract
Unlike conventional pollutants, pharmaceutical residues are continuously discharged at low levels (low to mid ng l(-1) concentrations), which results in the chronic contamination of non-target organisms, but little is known about the effects of these residues. The purpose of this study was to provide the first assessment of the ecotoxicity of five antidepressants (selective serotonin reuptake inhibitors [SSRIs] fluoxetine and sertraline, tricyclic antidepressants [TCAs] clomipramine and amitriptyline, and serotonin norepinephrine reuptake inhibitor [SNRI] duloxetine) at a wide range of concentrations from 0.1 to 100,000 μg l(-1) on two early life stages in the Pacific oyster. The toxicity was quantified in D-shaped larvae after 36 h of exposure, and in 21-day-old pediveliger larvae after 24 h of exposure using the percentage of normal larval development and the metamorphosis rate as endpoints, respectively. The embryotoxicity assays reported that the EC50 values were within the same range of concentrations (67 to 192 μg l(-1)) for all of the tested molecules. The metamorphosis tests revealed that the antidepressants can be ranked along an increasing severity gradient: clomipramine < amitriptyline < duloxetine ~ fluoxetine. Sertraline appeared to be the less toxic molecule on this endpoint; however, a different concentration range was used. The embryotoxicity test was more sensitive than the metamorphosis bioassay for three of the five molecules tested, but the latter test showed more practical benefits. Overall, the obtained toxicity values were at least 10,000-fold higher than the reported environmental concentrations.
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20
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Di Poi C, Bidel F, Dickel L, Bellanger C. Cryptic and biochemical responses of young cuttlefish Sepia officinalis exposed to environmentally relevant concentrations of fluoxetine. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 151:36-45. [PMID: 24439571 DOI: 10.1016/j.aquatox.2013.12.026] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 12/22/2013] [Accepted: 12/24/2013] [Indexed: 06/03/2023]
Abstract
Antidepressants released in the environment have the potential to generate neural disrupting effects in non-target organisms, yet their putative effects on behaviors have never been studied in cephalopod molluscs. This study assessed the impact of the antidepressant fluoxetine (FLX) on the efficiency of cryptic behaviors (body patterns on uniform, checkerboard and sandy substrates), locomotor activity, and brain chemistry in young cuttlefish exposed to environmental concentrations (1 and 100ngL(-1) of FLX) during the perinatal period. Behavioral responses of cuttlefish were monitored at hatching and two weeks later, and brain monoamine contents were quantified at one month of age. FLX significantly altered the camouflage efficiencies on uniform and sandy backgrounds only at the lowest concentration, but not at 100ngL(-1). Hatchlings exposed to 1ngL(-1) of FLX exhibited a duration exposure-dependent decrease in the uniform camouflage. They also showed a significant increase of the frequency of sand digging behaviors which might make them highly visible to predators in nature. When tested again two weeks later, cuttlefish seemed to have recovered and no more behavioral alterations were observed showing a transitory effect of the antidepressant. FLX did not affect the levels of serotonin, norepinephrine and their metabolites; however, it seemed to influence dopaminergic activity between the two FLX-exposed groups. The results show for the time that environmentally realistic concentrations of a single SSRI significantly impair the cryptic performances of newly hatched cuttlefish, and may ultimately reduce their chance for survival.
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Affiliation(s)
- Carole Di Poi
- Université de Caen Basse-Normandie, France; Groupe Mémoire et Plasticité comportementale, EA 4259, F-14032 Caen cedex, France.
| | - Flavie Bidel
- Université de Caen Basse-Normandie, France; Groupe Mémoire et Plasticité comportementale, EA 4259, F-14032 Caen cedex, France.
| | - Ludovic Dickel
- Université de Caen Basse-Normandie, France; Groupe Mémoire et Plasticité comportementale, EA 4259, F-14032 Caen cedex, France.
| | - Cécile Bellanger
- Université de Caen Basse-Normandie, France; Groupe Mémoire et Plasticité comportementale, EA 4259, F-14032 Caen cedex, France.
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21
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Bodin N, Tapie N, Le Ménach K, Chassot E, Elie P, Rochard E, Budzinski H. PCB contamination in fish community from the Gironde Estuary (France): blast from the past. CHEMOSPHERE 2014; 98:66-72. [PMID: 24238912 DOI: 10.1016/j.chemosphere.2013.10.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 09/24/2013] [Accepted: 10/01/2013] [Indexed: 06/02/2023]
Abstract
The contamination of the Gironde Estuary, southwest of France, by polychlorinated biphenyls (PCBs) was assessed using six fish of high ecological and economic importance as bioindicator species. The concentrations of 21 PCB congeners and total fat contents were determined in the muscle and liver of eels (Anguilla anguilla), seabass (Dicentrarchus labrax), flounders (Platichthys flesus), meagres (Argyrosomus regius), mullets (Liza ramada), and soles (Solea vulgaris). In addition, information regarding the trophic ecology of the studied fish was obtained through the analysis of carbon and nitrogen stable isotopes (i.e., δ(13)C and δ(15)N) in muscle. Results revealed high PCB concentrations in fish compared to monitored European estuaries. The muscle of eels was by far the most contaminated fish flesh (Σ7PCBs=1000±440 ng g(-1) on a dry weight basis), while the higher PCB concentrations in liver were measured in flounder (Σ7PCBs=2040±1160 ng g(-1) d.w.). A quantile regression approach allowed to investigate the fate of PCBs in the Gironde estuarine fish assemblage, and revealed a general process of trophic magnification. Finally, most of the analysed fish presented PCB concentrations in muscle meat above the current European maximum limits for sea products, while the derived "Toxic Equivalent Quantity" (TEQ) revealed human health concerns only for high-fat fish consumption.
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Affiliation(s)
- N Bodin
- CNRS, UMR 5805 EPOC, Université Bordeaux 1, F-33400 Talence, France; IRD, UMR 212 EME, BP 570, Victoria, Mahé, Seychelles
| | - N Tapie
- CNRS, UMR 5805 EPOC, Université Bordeaux 1, F-33400 Talence, France
| | - K Le Ménach
- CNRS, UMR 5805 EPOC, Université Bordeaux 1, F-33400 Talence, France
| | - E Chassot
- IRD, UMR 212 EME, BP 570, Victoria, Mahé, Seychelles
| | - P Elie
- IRSTEA, 50 Avenue de Verdun Gazinet, 33612 Cestas, France
| | - E Rochard
- IRSTEA, 50 Avenue de Verdun Gazinet, 33612 Cestas, France
| | - H Budzinski
- CNRS, UMR 5805 EPOC, Université Bordeaux 1, F-33400 Talence, France.
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Mottier A, Kientz-Bouchart V, Serpentini A, Lebel JM, Jha AN, Costil K. Effects of glyphosate-based herbicides on embryo-larval development and metamorphosis in the Pacific oyster, Crassostrea gigas. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 128-129:67-78. [PMID: 23277103 DOI: 10.1016/j.aquatox.2012.12.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 11/22/2012] [Accepted: 12/02/2012] [Indexed: 05/25/2023]
Abstract
Pesticides may be involved in oyster summer mortality events, not necessarily as a single causative agent but as an additional stressor. In this context, the present study aimed to assess the toxicity of glyphosate, its by-product, aminomethylphosphonic acid (AMPA) and two commercial formulations, Roundup Express(®) (R(EX)) and Roundup Allées et Terrasses(®) (R(AT)), containing glyphosate as the active ingredient, on the early life stages of the Pacific oyster, Crassostrea gigas. The embryotoxicity of these chemicals were quantified by considering both the rates of abnormalities and the arrested development or types of abnormalities in D-shaped larvae after 48 h exposure. The success of metamorphosis was examined in pediveliger larvae exposed for 24 h. Experiments involving both endpoints included range finding experiments for herbicide concentrations ranging from 0.1 to 100,000 μg L(-1). This range was then narrowed down in order to determine precise EC(50) values. Actual concentrations of the herbicide were determined at the beginning and after 48 h (embryotoxicity) and 24 h (metamorphosis) to evaluate the potential temporal variation in the concentrations. During embryo-larval development, no mortalities were recorded at any of the concentrations of glyphosate and AMPA, whereas no embryos or D-shaped larvae could be observed after exposure to 10,000 μg L(-1) of R(EX) or R(AT). Compared with the controls, no effects on embryo-larval development were recorded between 0.1 and 1000 μg L(-1), regardless of the chemical tested. Above a threshold, which varied according to the chemical used, the gradient of herbicide concentrations correlated with a gradient of severity of abnormality ranging from normal larvae to arrested development (an "old embryo" stage). The EC(50) values were 28,315 and 40,617 μg L(-1) for glyphosate and its metabolite, respectively, but much lowered values of 1133 and 1675 μg L(-1) for R(EX) and R(AT), respectively. Metamorphosis tests also revealed a significant difference between molecules, as the EC(50) values exceeded 100,000 μg L(-1) for glyphosate and AMPA but were as low as 6366 and 6060 μg L(-1) for the commercial formulations, which appeared relatively more toxic. Overall, the embryo-larval development of C. gigas was more sensitive to glyphosate-based herbicides compared to various endpoints studied in regulatory model organisms, and embryos and D-shaped larvae were more sensitive compared to pediveliger larvae.
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Affiliation(s)
- Antoine Mottier
- CNRS-INEE FRE 3484 BioMEA (Biologie de Mollusques Marins et des Ecosystèmes Associés), University of Caen Basse-Normandie, Caen, France
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23
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Bocquené G, Abarnou A. Organochlorinated pesticides, PCBs, dioxins, and PBDEs in grey mullets (Liza ramada) and allis shads (Alosa alosa) from the Vilaine estuary (France). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:667-675. [PMID: 23014954 DOI: 10.1007/s11356-012-1206-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Accepted: 09/17/2012] [Indexed: 06/01/2023]
Abstract
This study aimed to compare the contamination levels of various organohalogenated compounds in two migratory fish species in the Vilaine River in western France. Organochlorinated pesticides, polychlorinated biphenyls (PCBs), dioxins (polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/Fs)), and polybrominated diphenyl ethers (PBDEs) were analyzed in two diadromous species from the Vilaine estuary, the grey mullet (Liza ramada)-an amphihaline species, and the allis shad (Alosa alosa)-an anadromous species. Fish were collected in spring 2004 and spring 2005, upstream and downstream of the Arzal Dam. PCB contamination varied from 27 to 200 ng g(-1) dry weight (d.w.). PCDDs/Fs, expressed in toxicity equivalent quantity (TEQ) varied from 0.4 to 2.8 pg g(-1) d.w. Dioxins and dioxin-like PCBs expressed in total TEQ varied from 1.4 to 18.8 pg g(-1) d.w. PBDE47 was present at around 2-10 ng g(-1) d.w. and concentrations of the insecticide dichlorodiphenyltrichloroethane breakdown product p,p'-dichlorodiphenylchloroethylene varied from 1 to 14 ng g(-1) d.w. For both species, specimens collected upstream were more contaminated. The grey mullet specimens were less contaminated than the allis shad when taken downstream of the dam but were more contaminated upstream. The allis shads presented intermediate contaminant concentrations with a less pronounced difference between upstream and downstream specimens. However, it is thought that shads do not feed when they spawn in the upstream parts of rivers, which should modify the contaminant concentrations. However, measurements in upstream shad samples show an unexpected increase of the contamination, which remains unexplained.
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Affiliation(s)
- Gilles Bocquené
- Ifremer, Centre Atlantique, Unité de Biogéochimie & Écotoxicologie, Cellule d'Analyse de Risque Chimique, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France.
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24
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Mieiro CL, Coelho JP, Pacheco M, Duarte AC, Pereira ME. Trace elements in two marine fish species during estuarine residency: non-essential versus essential. MARINE POLLUTION BULLETIN 2012; 64:2844-2848. [PMID: 23017951 DOI: 10.1016/j.marpolbul.2012.08.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 08/28/2012] [Accepted: 08/31/2012] [Indexed: 06/01/2023]
Abstract
Trace element levels in fish are of particular interest, owing the potential risk to human health. In accordance, juveniles of Dicentrarchus labrax and of Liza aurata were sampled and arsenic, cadmium, chromium, selenium and zinc were determined in the muscle. The levels of trace elements in muscle demonstrated to be similar for both species and sites, with the exception of selenium levels at reference, which seemed to be higher in D. labrax. Moreover, apart from arsenic levels in muscle, all elements were in conformity with the existent regulatory guidelines for fish consumption. The dietary intake of each element was also calculated, with arsenic and selenium showing intakes above the recommended dietary allowances. Nevertheless, no arsenic speciation was carried out and thus no accurate risk evaluation could be established. Additionally, selenium levels never exceeded the dietary allowances more than five times, which are considered safe.
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Affiliation(s)
- C L Mieiro
- Chemistry Department of the University of Aveiro & CESAM, 3810-193 Aveiro, Portugal.
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25
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Schnitzler JG, Klaren PHM, Bouquegneau JM, Das K. Environmental factors affecting thyroid function of wild sea bass (Dicentrarchuslabrax) from European coasts. CHEMOSPHERE 2012; 87:1009-1017. [PMID: 22169207 DOI: 10.1016/j.chemosphere.2011.11.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Revised: 11/02/2011] [Accepted: 11/06/2011] [Indexed: 05/31/2023]
Abstract
Thyroid functional status of wild fish in relation with the contamination of their environment deserves further investigation. We here applied a multi-level approach of thyroid function assessment in 87 wild sea bass collected near several estuaries: namely the Scheldt, the Seine, the Loire, the Charente and the Gironde. Thyroxine (T(4)) and triiodothyronine (T(3)) concentrations in muscle were analyzed by radioimmunoassay. The activity of hepatic enzymes involved in extrathyroidal pathways of thyroid hormone metabolism, viz. deiodination, glucuronidation and sulfatation were analyzed. Last, follicle diameter and epithelial cell heights were measured. We observed changes that are predicted to lead to an increased conversion of T(4)-T(3) and lowered thyroid hormone excretion. The changes in the metabolic pathways of thyroid hormones can be interpreted as a pathway to maintain thyroid hormone homeostasis. From all compounds tested, the higher chlorinated PCBs seemed to be the most implicated in this perturbation.
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Affiliation(s)
- Joseph G Schnitzler
- Mare Centre, Laboratory for Oceanology B6c, Liège University, Liège, Belgium.
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Schnitzler JG, Celis N, Klaren PHM, Blust R, Dirtu AC, Covaci A, Das K. Thyroid dysfunction in sea bass (Dicentrarchus labrax): underlying mechanisms and effects of polychlorinated biphenyls on thyroid hormone physiology and metabolism. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2011; 105:438-47. [PMID: 21872555 DOI: 10.1016/j.aquatox.2011.07.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 07/26/2011] [Accepted: 07/29/2011] [Indexed: 05/20/2023]
Abstract
The current study examines the effect of subchronic exposure to a mixture of Aroclor standards on thyroid hormone physiology and metabolism in juvenile sea bass. The contaminant mixture was formulated to reflect the persistent organic pollution to which the European sea bass population could conceivably be exposed (0.3, 0.6 and 1.0 μg Σ7PCBs per g food pellets) and higher (10 μg Σ7PCBs per g food pellets). After 120 days of exposure, histomorphometry of thyroid tissue, muscular thyroid hormone concentration and activity of enzymes involved in metabolism of thyroid hormones were assessed. Mean concentrations of 8, 86, 142, 214 and 2279 ng g(-1)ww (Σ7 ICES PCB congeners) were determined after 120 days exposure. The results show that the effects of PCB exposures on the thyroid system are dose-dependent. Exposure to environmentally relevant doses of PCB (0.3-1.0 μg Σ7PCBs per g food pellets) induced a larger variability of the follicle diameter and stimulated hepatic T(4) outer ring deiodinase. Muscular thyroid hormone levels were preserved thanks to the PCB induced changes in T(4) dynamics. At 10 times higher concentrations (10 μg Σ7PCBs per g food pellets) an important depression of T(3) and T(4) levels could be observed which are apparently caused by degenerative histological changes in the thyroid tissue.
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Affiliation(s)
- Joseph G Schnitzler
- Mare Centre, Laboratory for Oceanology B6c, Liège University, Liège, Belgium.
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