Polybrominated Diphenyl Ethers in American Eels (Anguilla rostrata) from the Delaware River, USA

Ashley, Jeffrey; Libero, D.; Halscheid, E.; Zaoudeh, Linda; Stapleton, Heather M.

doi:10.1007/s00128-007-9090-1

Cited by 20 publications

(5 citation statements)

References 13 publications

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“…The dominance, among the other congeners, of BDE-47 shown in the present study is congruent with the general pattern found in fish species in the literature [2,15]; this outcome is likely attributable to the fact that BDE-47 is one of the main components of penta-BDE commercial formulation which was used worldwide [39]. In particular, it has been reported that BDE-47 is a major congener that bioaccumulates in freshwater fish species [56], possibly due to the higher uptake efficiency for BDE-47 from the environment [57], especially for eel and carp [58]. Furthermore, a biotransformation pathway of BDE-99 to BDE-47 in fish tissue has also been hypothesized [59].…”

Section: Discussionsupporting

confidence: 81%

Risk Characterization and Benefit–Risk Assessment of Brominated Flame Retardant in Commercially Exploited Freshwater Fishes and Crayfish of Lake Trasimeno, Italy

Roila

Branciari

Stramenga

et al. 2021

IJERPH

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Among brominated flame retardants (BFRs), polybrominateddiphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDs) were the most widely used in past decades. BFRs not being chemically bonded to polymers means they can easily leach from the products into the environment and bioaccumulate. Humans are exposed to flame retardants mainly through food consumption, especially fish and fish products. In the present study, the occurrence of PBDEs and HBCDs in freshwater fishes and crayfish from Lake Trasimeno (Umbria region, central Italy) was assessed according to monitoring plans recommended by European competent authorities. The dietary exposure of the central Italian population to such molecules was calculated, and the risk characterization and the benefit–risk evaluation were also assessed. A total of 90 samples were analyzed by means of gas and liquid chromatography associated with triple quadrupole mass spectroscopy. A total of 51% of samples were found positive for at least one of the congeners; the most frequently found molecule was BDE-47. The data on dietary exposure ranged from 0.138 to 1.113 pg/kg body weight/day for ∑PBDE and from 0.805 to 0.868 pg/kg body weight/day for ∑HBCD. The data show no health risks for the central Italian population consuming freshwater fish products from Lake Trasimeno in relation to exposure to PBDE and HBCD.

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Section: Discussionsupporting

confidence: 81%

Risk Characterization and Benefit–Risk Assessment of Brominated Flame Retardant in Commercially Exploited Freshwater Fishes and Crayfish of Lake Trasimeno, Italy

Roila

Branciari

Stramenga

et al. 2021

IJERPH

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“…The pollutant burden in eels has been extensively reported for both A. anguilla (Belpaire & Goemans, 2007; Dekker, 2016; Geeraerts & Belpaire, 2010; ICES, 2012; Robinet & Feunteun, 2002b) and A. rostrata (Ashley et al, 2007; Hodson et al, 1994). A wide variety of chemical contaminants have been reported in eel tissues, often at very high levels.…”

Section: Resultsmentioning

confidence: 99%

Important questions to progress science and sustainable management of anguillid eels

et al. 2021

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Anguillid eels are found globally in fresh, transitional and saline waters and have played an important role in human life for centuries. The population status of several species is now of significant concern. The threats to populations include direct exploitation at different life stages, blockages to migratory routes by dams and other structures, changes in river basin management that impact habitat carrying capacity and suitability, pollution, climate change, diseases and parasites. While much has been done to understand eel biology and ecology, a major challenge is to identify the key research and management questions so that effective and targeted studies can be designed to inform conservation, management and policy. We gathered 30 experts in the field of eel biology and management to review the current state of knowledge for anguillid eel species and to identify the main topics for research. The identified research topics fell into three themes: (a) Lifecycle and Biology; (b) Impacts and (c) Management. Although tropical anguillid eels are by far the least well understood, significant knowledge gaps exist for all species. Considerable progress has been made in the last 20 years, but the status of many species remains of great concern, particularly for northern temperate species. Without improved engagement and coordination at the regional, national and international level, the situation is unlikely to improve. Further, adaptive management mechanisms to respond to developments in science, policy and our knowledge of potential threats are required to ensure the future of these important and enigmatic species.

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“…brominated flame retardants), and their presence in aquatic organisms, and specifically in anguillid eels over the world (e.g. Ashley et al. 2007; Fromme et al.…”

Section: Discussionmentioning

confidence: 99%

“…brominated flame retardants), and their presence in aquatic organisms, and specifically in anguillid eels over the world (e.g. Ashley et al 2007;Fromme et al 1999;Belpaire & Goemans 2007a; for a review in A. anguilla see Belpaire & Goemans 2007b). For some of those compounds, time series of their presence in the environment are available and their time trend coincide with the trend in stock decline.…”

Section: Decreasing Energy Stores In Yellow Eel and Stock Declinementioning

confidence: 99%

Decreasing eel stocks: survival of the fattest?

Belpaire

Goemans

Geeraerts

et al. 2009

Ecology of Freshwater Fish

120

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– Since the 1980s, the European eel Anguilla anguilla stock is in steep decline. Lipid reserves are essential to cover energetic requirements for silver eel migration and reproduction. Two large and independent data sets from Belgium and The Netherlands show an average one‐third decrease in fat contents of yellow eels over the past 15 years. Also Le Cren’s relative condition factor decreased. On the basis of the somatic energy reserves, reproductive potential of eels from various latitudes over Europe was estimated, assuming fat levels in yellow eel are indicative of those in silver eels. Only large individuals, females as well as males, with high lipid content seem to be able to contribute to the spawning stock. The decrease in fat content in yellow eels may be a key element in the stock decline and raises serious concerns about the chances of the stock to recover.

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Polybrominated Diphenyl Ethers in American Eels (Anguilla rostrata) from the Delaware River, USA

Cited by 20 publications

References 13 publications

Risk Characterization and Benefit–Risk Assessment of Brominated Flame Retardant in Commercially Exploited Freshwater Fishes and Crayfish of Lake Trasimeno, Italy

Risk Characterization and Benefit–Risk Assessment of Brominated Flame Retardant in Commercially Exploited Freshwater Fishes and Crayfish of Lake Trasimeno, Italy

Important questions to progress science and sustainable management of anguillid eels

Decreasing eel stocks: survival of the fattest?

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