Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment
Trematomus bernacchii sampled from two sites at Ross Island, Antarctica, were assessed for condition (gonadal and hepatic somatic indices and condition factor), pathological state (liver and gill histology), hepatic metal (Zn, Cu, Cd and Ni) concentrations, and metallothionein induction by quantitat...
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crwiley:10.1111/j.1095-8649.2000.tb02241.x 2024-06-02T07:56:37+00:00 Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment Evans, C. W. Hills, J. M. Dickson, J. M. J. 2000 http://dx.doi.org/10.1111/j.1095-8649.2000.tb02241.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02241.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02241.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 57, issue sA, page 8-19 ISSN 0022-1112 1095-8649 journal-article 2000 crwiley https://doi.org/10.1111/j.1095-8649.2000.tb02241.x 2024-05-03T10:54:11Z Trematomus bernacchii sampled from two sites at Ross Island, Antarctica, were assessed for condition (gonadal and hepatic somatic indices and condition factor), pathological state (liver and gill histology), hepatic metal (Zn, Cu, Cd and Ni) concentrations, and metallothionein induction by quantitative competitive (qc) RT‐PCR. Fish from a polluted site (Winter Quarters Bay) had pathological anomalies including necrosis and periductal inflammation in their livers, and X‐cell disease, epithelial hyperplasia, lamellar fusion and aneurysms in their gills. Such anomalies were less common in fish from a relatively pristine site (Backdoor Bay, Cape Royds). Fish from both sites had similar liver concentrations of Zn, Cu and Cd and qcRT‐PCR revealed similar levels of hepatic metallothionein mRNA. Ni in the livers of fish from Winter Quarters Bay were higher than those in fish from Backdoor Bay, but the differences were not great enough to affect hepatic metallothionein mRNA significantly. Despite the polluted state of Winter Quarters Bay waters, it seems that the heavy metals present may have only limited impact on the health status of fish collected from this locality. This may reflect a low bioavailability of the heavy metals in Ross Island marine sediments and suggests that other factors, such as relatively high levels of organic pollutants (PAHs, PCBs) or pathogens from the nearby sewage outlet, may play a more significant role in the aetiology of pathological conditions in fish from Winter Quarters Bay. Article in Journal/Newspaper Antarc* Antarctica Ross Island Wiley Online Library Ross Island Royds ENVELOPE(166.150,166.150,-77.550,-77.550) Cape Royds ENVELOPE(166.150,166.150,-77.550,-77.550) Winter Quarters Bay ENVELOPE(166.617,166.617,-77.850,-77.850) Backdoor Bay ENVELOPE(166.200,166.200,-77.567,-77.567) Journal of Fish Biology 57 sa 8 19 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Trematomus bernacchii sampled from two sites at Ross Island, Antarctica, were assessed for condition (gonadal and hepatic somatic indices and condition factor), pathological state (liver and gill histology), hepatic metal (Zn, Cu, Cd and Ni) concentrations, and metallothionein induction by quantitative competitive (qc) RT‐PCR. Fish from a polluted site (Winter Quarters Bay) had pathological anomalies including necrosis and periductal inflammation in their livers, and X‐cell disease, epithelial hyperplasia, lamellar fusion and aneurysms in their gills. Such anomalies were less common in fish from a relatively pristine site (Backdoor Bay, Cape Royds). Fish from both sites had similar liver concentrations of Zn, Cu and Cd and qcRT‐PCR revealed similar levels of hepatic metallothionein mRNA. Ni in the livers of fish from Winter Quarters Bay were higher than those in fish from Backdoor Bay, but the differences were not great enough to affect hepatic metallothionein mRNA significantly. Despite the polluted state of Winter Quarters Bay waters, it seems that the heavy metals present may have only limited impact on the health status of fish collected from this locality. This may reflect a low bioavailability of the heavy metals in Ross Island marine sediments and suggests that other factors, such as relatively high levels of organic pollutants (PAHs, PCBs) or pathogens from the nearby sewage outlet, may play a more significant role in the aetiology of pathological conditions in fish from Winter Quarters Bay. |
format |
Article in Journal/Newspaper |
author |
Evans, C. W. Hills, J. M. Dickson, J. M. J. |
spellingShingle |
Evans, C. W. Hills, J. M. Dickson, J. M. J. Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
author_facet |
Evans, C. W. Hills, J. M. Dickson, J. M. J. |
author_sort |
Evans, C. W. |
title |
Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
title_short |
Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
title_full |
Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
title_fullStr |
Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
title_full_unstemmed |
Heavy metal pollution in Antarctica: a molecular ecotoxicological approach to exposure assessment |
title_sort |
heavy metal pollution in antarctica: a molecular ecotoxicological approach to exposure assessment |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2000.tb02241.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02241.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02241.x |
long_lat |
ENVELOPE(166.150,166.150,-77.550,-77.550) ENVELOPE(166.150,166.150,-77.550,-77.550) ENVELOPE(166.617,166.617,-77.850,-77.850) ENVELOPE(166.200,166.200,-77.567,-77.567) |
geographic |
Ross Island Royds Cape Royds Winter Quarters Bay Backdoor Bay |
geographic_facet |
Ross Island Royds Cape Royds Winter Quarters Bay Backdoor Bay |
genre |
Antarc* Antarctica Ross Island |
genre_facet |
Antarc* Antarctica Ross Island |
op_source |
Journal of Fish Biology volume 57, issue sA, page 8-19 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2000.tb02241.x |
container_title |
Journal of Fish Biology |
container_volume |
57 |
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sa |
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8 |
op_container_end_page |
19 |
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1800757456626778112 |