Maternal transfer of dioxin-like compounds in artificially matured European eels
Several eel species of the genus Anguilla are considered endangered due to a severe decline in recruitment. Up to now, the reasons for this threatening development are not fully understood. The eel\'s highly specialized biology can lead to explicitly high accumulation of globally distributed or...
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fthzgzmk:oai:publications.hereon.de:34856 2023-06-11T04:03:46+02:00 Maternal transfer of dioxin-like compounds in artificially matured European eels Freese, M. Suehring, R. Marohn, L. Pohlmann, J.-D. Wolschke, H. Byer, J.D. Alaee, M. Ebinghaus, R. Hanel, R. 2017 https://publications.hereon.de/id/34856 https://publications.hzg.de/id/34856 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2017/freese_34856.pdf en eng Elsevier http://dx.doi.org/10.1016/j.envpol.2017.04.096 urn:issn:0269-7491 https://publications.hereon.de/id/34856 https://publications.hzg.de/id/34856 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2017/freese_34856.pdf info:eu-repo/semantics/openAccess open_access oa_gruen issn:0269-7491 Freese, M.; Suehring, R.; Marohn, L.; Pohlmann, J.-D.; Wolschke, H.; Byer, J.D.; Alaee, M.; Ebinghaus, R.; Hanel, R.: Maternal transfer of dioxin-like compounds in artificially matured European eels. In: Environmental Pollution. Vol. 227 (2017) 348 - 356. (DOI:10.1016/j.envpol.2017.04.096) info:eu-repo/semantics/article Zeitschrift Artikel 2017 fthzgzmk https://doi.org/10.1016/j.envpol.2017.04.096 2023-05-28T23:24:26Z Several eel species of the genus Anguilla are considered endangered due to a severe decline in recruitment. Up to now, the reasons for this threatening development are not fully understood. The eel\'s highly specialized biology can lead to explicitly high accumulation of globally distributed organic lipophilic contaminants during its continental life. Because of this and due the particular toxicological sensitivity of early life stages of oviparous organisms towards dioxin-like compounds, it is crucial to improve our understanding concerning toxicokinetics and maternal transfer of organic contaminants in eels. This study presents analytical data on maternal transfer of dioxin-like (dl) compounds in relevant tissue samples taken from artificially matured and non-matured European silver eels (Anguilla anguilla) from German inland waters using gas chromatography coupled with mass spectrometry (GC/MS) and high-resolution mass spectrometry (GC/HRMS). Detected concentrations revealed a lipid-driven transfer of targeted compounds from muscle-fat-reserves to gonads and eggs respectively, with no distinct preferences concerning the chlorination degree of targeted compounds. Dl-PCBs were shown to contribute the major share of toxicity equivalents found in analysed eel tissues. Maternal muscle tissue to egg concentration ratios in wet weight–based samples had a mean of 6.95 ± 1.49 in accordance with the differences in total lipid content in the respective body matrices. Dioxins and furans in analysed samples were (from a toxicological point of view) of less relevance. Furthermore it was shown that muscle concentrations in silver eels could be used in future assessments to make conservative predictions for expected egg concentrations in female eels. Article in Journal/Newspaper Anguilla anguilla Hereon Publications (Helmholtz-Zentrum) Environmental Pollution 227 348 356 |
institution |
Open Polar |
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Hereon Publications (Helmholtz-Zentrum) |
op_collection_id |
fthzgzmk |
language |
English |
description |
Several eel species of the genus Anguilla are considered endangered due to a severe decline in recruitment. Up to now, the reasons for this threatening development are not fully understood. The eel\'s highly specialized biology can lead to explicitly high accumulation of globally distributed organic lipophilic contaminants during its continental life. Because of this and due the particular toxicological sensitivity of early life stages of oviparous organisms towards dioxin-like compounds, it is crucial to improve our understanding concerning toxicokinetics and maternal transfer of organic contaminants in eels. This study presents analytical data on maternal transfer of dioxin-like (dl) compounds in relevant tissue samples taken from artificially matured and non-matured European silver eels (Anguilla anguilla) from German inland waters using gas chromatography coupled with mass spectrometry (GC/MS) and high-resolution mass spectrometry (GC/HRMS). Detected concentrations revealed a lipid-driven transfer of targeted compounds from muscle-fat-reserves to gonads and eggs respectively, with no distinct preferences concerning the chlorination degree of targeted compounds. Dl-PCBs were shown to contribute the major share of toxicity equivalents found in analysed eel tissues. Maternal muscle tissue to egg concentration ratios in wet weight–based samples had a mean of 6.95 ± 1.49 in accordance with the differences in total lipid content in the respective body matrices. Dioxins and furans in analysed samples were (from a toxicological point of view) of less relevance. Furthermore it was shown that muscle concentrations in silver eels could be used in future assessments to make conservative predictions for expected egg concentrations in female eels. |
format |
Article in Journal/Newspaper |
author |
Freese, M. Suehring, R. Marohn, L. Pohlmann, J.-D. Wolschke, H. Byer, J.D. Alaee, M. Ebinghaus, R. Hanel, R. |
spellingShingle |
Freese, M. Suehring, R. Marohn, L. Pohlmann, J.-D. Wolschke, H. Byer, J.D. Alaee, M. Ebinghaus, R. Hanel, R. Maternal transfer of dioxin-like compounds in artificially matured European eels |
author_facet |
Freese, M. Suehring, R. Marohn, L. Pohlmann, J.-D. Wolschke, H. Byer, J.D. Alaee, M. Ebinghaus, R. Hanel, R. |
author_sort |
Freese, M. |
title |
Maternal transfer of dioxin-like compounds in artificially matured European eels |
title_short |
Maternal transfer of dioxin-like compounds in artificially matured European eels |
title_full |
Maternal transfer of dioxin-like compounds in artificially matured European eels |
title_fullStr |
Maternal transfer of dioxin-like compounds in artificially matured European eels |
title_full_unstemmed |
Maternal transfer of dioxin-like compounds in artificially matured European eels |
title_sort |
maternal transfer of dioxin-like compounds in artificially matured european eels |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://publications.hereon.de/id/34856 https://publications.hzg.de/id/34856 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2017/freese_34856.pdf |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
issn:0269-7491 Freese, M.; Suehring, R.; Marohn, L.; Pohlmann, J.-D.; Wolschke, H.; Byer, J.D.; Alaee, M.; Ebinghaus, R.; Hanel, R.: Maternal transfer of dioxin-like compounds in artificially matured European eels. In: Environmental Pollution. Vol. 227 (2017) 348 - 356. (DOI:10.1016/j.envpol.2017.04.096) |
op_relation |
http://dx.doi.org/10.1016/j.envpol.2017.04.096 urn:issn:0269-7491 https://publications.hereon.de/id/34856 https://publications.hzg.de/id/34856 http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2017/freese_34856.pdf |
op_rights |
info:eu-repo/semantics/openAccess open_access oa_gruen |
op_doi |
https://doi.org/10.1016/j.envpol.2017.04.096 |
container_title |
Environmental Pollution |
container_volume |
227 |
container_start_page |
348 |
op_container_end_page |
356 |
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1768383153482760192 |