Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea
The Baltic Sea is exposed to severe human impacts. Besides eutrophication and overfishing, a variety of chemical contaminants threaten the health of fish. During a cruise in December 2001, Atlantic cod ( Gadus morhua ) were collected in the western and southern Baltic Sea, somatic condition factors...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f08-042 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-042 |
id |
crcansciencepubl:10.1139/f08-042 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f08-042 2023-12-17T10:27:00+01:00 Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea Schnell, Sabine Schiedek, Doris Schneider, Rolf Balk, Lennart Vuorinen, Pekka J. Karvinen, Heta Lang, Thomas 2008 http://dx.doi.org/10.1139/f08-042 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-042 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 6, page 1122-1134 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crcansciencepubl https://doi.org/10.1139/f08-042 2023-11-19T13:39:27Z The Baltic Sea is exposed to severe human impacts. Besides eutrophication and overfishing, a variety of chemical contaminants threaten the health of fish. During a cruise in December 2001, Atlantic cod ( Gadus morhua ) were collected in the western and southern Baltic Sea, somatic condition factors were estimated, and different biomarkers of contaminant exposure were analysed. Additionally, various polychlorinated biphenyl congeners and organochlorine pesticides were measured in cod liver as more general indicators of pollution, not necessarily as the causative agents for biomarker signals. In most specimens, hepatic ethoxyresorufin-O-deethylase activity and bile 1-OH pyrene, a common polycyclic aromatic hydrocarbon metabolite, were detectable. Both features indicate an induction of the CYP1A biotransformation system in response to toxic substances. The increased occurrence of DNA adducts in some of the specimens also indicates the presence of genotoxic substances. Acetylcholinesterase was inhibited, an indication of exposure to organophosphates, carbamates, or certain heavy metals, particularly in specimens taken at Wismar Bay and off the Lithuanian coast. In general, spatial differences in the biomarker responses as well as in contaminant loads were found, suggesting differences in physiologically active concentrations and mixtures of organic contaminants in this ecosystem. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 65 6 1122 1134 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Schnell, Sabine Schiedek, Doris Schneider, Rolf Balk, Lennart Vuorinen, Pekka J. Karvinen, Heta Lang, Thomas Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The Baltic Sea is exposed to severe human impacts. Besides eutrophication and overfishing, a variety of chemical contaminants threaten the health of fish. During a cruise in December 2001, Atlantic cod ( Gadus morhua ) were collected in the western and southern Baltic Sea, somatic condition factors were estimated, and different biomarkers of contaminant exposure were analysed. Additionally, various polychlorinated biphenyl congeners and organochlorine pesticides were measured in cod liver as more general indicators of pollution, not necessarily as the causative agents for biomarker signals. In most specimens, hepatic ethoxyresorufin-O-deethylase activity and bile 1-OH pyrene, a common polycyclic aromatic hydrocarbon metabolite, were detectable. Both features indicate an induction of the CYP1A biotransformation system in response to toxic substances. The increased occurrence of DNA adducts in some of the specimens also indicates the presence of genotoxic substances. Acetylcholinesterase was inhibited, an indication of exposure to organophosphates, carbamates, or certain heavy metals, particularly in specimens taken at Wismar Bay and off the Lithuanian coast. In general, spatial differences in the biomarker responses as well as in contaminant loads were found, suggesting differences in physiologically active concentrations and mixtures of organic contaminants in this ecosystem. |
format |
Article in Journal/Newspaper |
author |
Schnell, Sabine Schiedek, Doris Schneider, Rolf Balk, Lennart Vuorinen, Pekka J. Karvinen, Heta Lang, Thomas |
author_facet |
Schnell, Sabine Schiedek, Doris Schneider, Rolf Balk, Lennart Vuorinen, Pekka J. Karvinen, Heta Lang, Thomas |
author_sort |
Schnell, Sabine |
title |
Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
title_short |
Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
title_full |
Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
title_fullStr |
Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
title_full_unstemmed |
Biological indications of contaminant exposure in Atlantic cod (Gadus morhua) in the Baltic Sea |
title_sort |
biological indications of contaminant exposure in atlantic cod (gadus morhua) in the baltic sea |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/f08-042 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-042 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-042 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 6, page 1122-1134 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f08-042 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
65 |
container_issue |
6 |
container_start_page |
1122 |
op_container_end_page |
1134 |
_version_ |
1785578771942735872 |