Spatial trends of organochlorinated pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers in Atlantic Anguillid eels

Byer, Jonathan D.; Lebeuf, Michel; Alaee, Mehran; Brown, R. Stephen; Trottier, Steve; Backus, Sean; Keir, M.J.; Couillard, Catherine M.; Casselman, John M.; Hodson, Peter V.

doi:10.1016/j.chemosphere.2012.10.018

Cited by 28 publications

(34 citation statements)

References 41 publications

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“…Tapie et al [20] determined the sum of indicator PCBs + PCB 118 in eels from the Gironde values ranging between 1,141 and 5,746 ng/g lw. High concentrations were as well reported from eels in a Belgian canal which reached up to 8,700 ng/g ww [34] and from Flemish waters, where eels reach concentrations between 78 and 4,812 ng/g lw [35].…”

Section: Pcdds Pcdfs and Indicator Pcbsmentioning

confidence: 82%

Contaminant levels in the European eel (Anguilla anguilla) in North Rhine-Westphalian rivers

2014

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Background: Populations of the European eel (Anguilla anguilla) are declining rapidly and are now considered below safe biological limits. High pollution levels are one of the possible reasons for this decline. Contaminant levels are also of concern with regard to human consumption. This study examined the contamination levels of eels from the North Rhine-Westphalian catchment area of the Rhine and from adjacent rivers. A total of 119 eels from 13 sampling sites were analysed for polychlorinated dibenzo-p-dioxins and furans (PCDD/PCDFs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), mercury, perfluorooctane sulfonate (PFOS) and hexachlorobenzene (HCB). Results: North Rhine-Westphalian eels had very high levels of contaminants comparable to eels from other European water bodies which are strongly influenced by anthropogenic activities. Mean values for PCDD/PCDFs ranged between 0.5 and 5.4 pg WHO 2005 toxicity equivalents (TEQ)/g, for PCDD/PCDF + dl-PCBs between 6.3 and 44.7 pg WHO 2005 TEQ/g, for indicator PCBs between 165 and 1,630 ng/g wet weight (ww), for 6 PBDEs between 9.2 and 242 μg/kg ww, for mercury between 0.069 and 0.314 mg/kg ww, for PFOS between 8.3 and 49 μg/kg ww and for HCB between 3.4 and 50 μg/kg ww. For certain sampling sites, high contamination contents of the eels could be attributed to local sources. Congener patterns for PCBs and PBDEs were described, and biota to suspended matter ratios were calculated. Conclusions: Pollution levels in eels from North Rhine-Westphalia are declining with regard to some contaminants but are still very high. Due to the high contaminant contents, eels from the rivers investigated are not suitable for human consumption. Furthermore, the concentrations of endocrine disrupting contaminants such as PCBs, PCDD/PCDFs and PBDEs in the eels are in a range which might have deleterious effects on the eel populations.

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Section: Pcdds Pcdfs and Indicator Pcbsmentioning

confidence: 82%

Contaminant levels in the European eel (Anguilla anguilla) in North Rhine-Westphalian rivers

2014

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“…Concentrations of DLCs in naturally-spawned eel eggs have never been measured (Byer et al, 2012), but they can be estimated from concentrations in tissues of sexually-maturing, migrating silver eels. Ratios of gonad/whole body concentrations averaged 1.4 for both PCBs and total lipids in migrating silver eels from the SLR estuary , reflecting the transfer of hydrophobic POPs and lipids to developing oocytes.…”

Section: Potential Effects Of Toxic Chemicals On Eel Recruitmentmentioning

confidence: 99%

“…In 2008, all eels but two were frozen immediately after capture, and size data, otoliths, and tissue samples were collected when thawed, prior to homogenization; size data for the remaining two fish were collected fresh and after freezing and thawing. The effects of freezing and thawing on fish size in 2008 were assessed by measuring weights and lengths of 10 large yellow eels sampled from the upper St. Lawrence River (Byer et al, 2012), and the two eels collected in the present study, before the fish were frozen and after they were thawed for chemical analyses. There was a very strong correlation between fresh weight and thawed weight (r 2 = 0.999, n = 12, p b 0.0001), with frozen and thawed eels 4.0 ± 0.75% lighter than fresh eels.…”

Section: Sampling Condition and Age Determinationmentioning

confidence: 99%

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Trends of persistent organic pollutants in American eel (Anguilla rostrata) from eastern Lake Ontario, Canada, and their potential effects on recruitment

Byer

Lebeuf

Trottier

et al. 2015

Science of The Total Environment

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“…In recent year, aquatic organisms are regarded as good bioindicators and selected for monitoring the levels and effects of POPs in the environment (Wang et al 2007(Wang et al , 2008Bustnes et al 2012;Byer et al 2013;Carpenter et al 2014). Among them, golden thread (Nemipterus virgatus) is a carnivorous fish feeding mainly on crustacea, cephalopoda, and small fish, which is widespread in the SCS and belongs to non-migratory fish with relative narrow home range.…”

Section: Introductionmentioning

confidence: 99%

Geographical distribution and risk assessment of persistent organic pollutants in golden threads (Nemipterus virgatus) from the northern South China Sea

Hao

Sun

et al. 2015

Ecotoxicology

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Fish are often used as good bioindicators to monitor the occurrence of persistent organic pollutants (POPs) on different scales in recent years. Forty-five golden threads (Nemipterus virgatus) were collected from six sampling sites in the northern South China Sea (SCS) to investigate the geographical distribution of polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs). Concentrations of PBDEs, PCBs, and DDTs ranged from 1.3-36.0, 2.3-76.5, 8.3-228 ng/g lipid weight, respectively. The highest PBDEs and DDTs concentrations were found in golden threads from Shantou, owing to the intensive electronic waste recycling activities and rapid development of agriculture. Samples from Haikou had the highest levels of PCBs, probably due to the existence of many shipbuilding yards in the past years. The concentrations of PBDEs and PCBs were found in a decreasing trend from east to west and from north to south, while DDTs concentrations had no obvious trend in the distribution. PCBs were the most prevalent contaminants in Xiamen and Yangjiang, while DDTs were the dominant compounds at the other four sampling sites. Different profiles of POPs at each sampling site may attribute to different pollution sources in the northern SCS. Ratios of (DDD + DDE)/DDTs in golden threads suggested the probability of fresh input of DDT in the northern SCS. The estimated daily intakes of PBDEs, PCBs and DDTs were 0.030-0.069, 0.167-0.258 and 0.105-1.88 ng/kg/day, respectively, which were significantly lower than the acceptable daily intake, suggesting that consumption of golden threads from the northern SCS would not subject the residents in the coastal areas of SCS to significant health risk.

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Spatial trends of organochlorinated pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers in Atlantic Anguillid eels

Cited by 28 publications

References 41 publications

Contaminant levels in the European eel (Anguilla anguilla) in North Rhine-Westphalian rivers

Contaminant levels in the European eel (Anguilla anguilla) in North Rhine-Westphalian rivers

Trends of persistent organic pollutants in American eel (Anguilla rostrata) from eastern Lake Ontario, Canada, and their potential effects on recruitment

Geographical distribution and risk assessment of persistent organic pollutants in golden threads (Nemipterus virgatus) from the northern South China Sea

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