Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands
The Kerguelen Islands include various species of freshwater fish such as brown trout (Salmo trutta). These trout are among the most isolated from direct anthropogenic impact worldwide. This study was designed to analyse cadmium (Cd) and copper (Cu) concentrations in the liver of Kerguelen brown trou...
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Norwegian Polar Institute
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ftdoajarticles:oai:doaj.org/article:b24481df58e3460885f972ef4125f1f1 2023-05-15T13:56:15+02:00 Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands Ali Jaffal Stéphane Betoulle Sylvie Biagianti-Risbourg Alexandre Terreau Wilfried Sanchez Séverine Paris-Palacios 2015-09-01T00:00:00Z https://doi.org/10.3402/polar.v34.22784 https://doaj.org/article/b24481df58e3460885f972ef4125f1f1 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/22784/pdf_43 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v34.22784 https://doaj.org/article/b24481df58e3460885f972ef4125f1f1 Polar Research, Vol 34, Iss 0, Pp 1-14 (2015) Brown trout freshwater fish sub-Antarctic liver biomarkers Environmental sciences GE1-350 Oceanography GC1-1581 article 2015 ftdoajarticles https://doi.org/10.3402/polar.v34.22784 2022-12-31T08:11:20Z The Kerguelen Islands include various species of freshwater fish such as brown trout (Salmo trutta). These trout are among the most isolated from direct anthropogenic impact worldwide. This study was designed to analyse cadmium (Cd) and copper (Cu) concentrations in the liver of Kerguelen brown trout, and to assess the possible impacts of these metals on hepatic histopathology and oxidative stress parameters (superoxide dismutase and catalase activity and glutathione levels). Trout were caught in the Château River, the Studer Lakes and the Ferme Pond, close to the scientific station of the Kerguelen Islands, corresponding to three morphotypes (river, lake and station). Kerguelen trouts’ hepatic concentrations of Cd and Cur were similar to those reported in previous studies in salmonids populations from areas under anthropological impacts. Clear hepatic disturbances (fibrosis, nuclear alteration, increased immune response, melanomacrophage centres [MMCs]) were observed in all tested trout. A similar histo-pathological trend was observed among the trout from the three morphotypes but anti-oxidative responses were higher in the trout from the “station” morphotype. Hepatic alterations and the presence of MMCs in the livers of Kerguelen brown trout may be related to the high levels of Cd and Cu measured in this fish at all sampling sites. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Polar Research Directory of Open Access Journals: DOAJ Articles Antarctic Kerguelen Kerguelen Islands Polar Research 34 1 22784 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Brown trout freshwater fish sub-Antarctic liver biomarkers Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Brown trout freshwater fish sub-Antarctic liver biomarkers Environmental sciences GE1-350 Oceanography GC1-1581 Ali Jaffal Stéphane Betoulle Sylvie Biagianti-Risbourg Alexandre Terreau Wilfried Sanchez Séverine Paris-Palacios Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
topic_facet |
Brown trout freshwater fish sub-Antarctic liver biomarkers Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
The Kerguelen Islands include various species of freshwater fish such as brown trout (Salmo trutta). These trout are among the most isolated from direct anthropogenic impact worldwide. This study was designed to analyse cadmium (Cd) and copper (Cu) concentrations in the liver of Kerguelen brown trout, and to assess the possible impacts of these metals on hepatic histopathology and oxidative stress parameters (superoxide dismutase and catalase activity and glutathione levels). Trout were caught in the Château River, the Studer Lakes and the Ferme Pond, close to the scientific station of the Kerguelen Islands, corresponding to three morphotypes (river, lake and station). Kerguelen trouts’ hepatic concentrations of Cd and Cur were similar to those reported in previous studies in salmonids populations from areas under anthropological impacts. Clear hepatic disturbances (fibrosis, nuclear alteration, increased immune response, melanomacrophage centres [MMCs]) were observed in all tested trout. A similar histo-pathological trend was observed among the trout from the three morphotypes but anti-oxidative responses were higher in the trout from the “station” morphotype. Hepatic alterations and the presence of MMCs in the livers of Kerguelen brown trout may be related to the high levels of Cd and Cu measured in this fish at all sampling sites. |
format |
Article in Journal/Newspaper |
author |
Ali Jaffal Stéphane Betoulle Sylvie Biagianti-Risbourg Alexandre Terreau Wilfried Sanchez Séverine Paris-Palacios |
author_facet |
Ali Jaffal Stéphane Betoulle Sylvie Biagianti-Risbourg Alexandre Terreau Wilfried Sanchez Séverine Paris-Palacios |
author_sort |
Ali Jaffal |
title |
Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
title_short |
Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
title_full |
Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
title_fullStr |
Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
title_full_unstemmed |
Heavy metal contamination and hepatic toxicological responses in brown trout (Salmo trutta) from the Kerguelen Islands |
title_sort |
heavy metal contamination and hepatic toxicological responses in brown trout (salmo trutta) from the kerguelen islands |
publisher |
Norwegian Polar Institute |
publishDate |
2015 |
url |
https://doi.org/10.3402/polar.v34.22784 https://doaj.org/article/b24481df58e3460885f972ef4125f1f1 |
geographic |
Antarctic Kerguelen Kerguelen Islands |
geographic_facet |
Antarctic Kerguelen Kerguelen Islands |
genre |
Antarc* Antarctic Kerguelen Islands Polar Research |
genre_facet |
Antarc* Antarctic Kerguelen Islands Polar Research |
op_source |
Polar Research, Vol 34, Iss 0, Pp 1-14 (2015) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/22784/pdf_43 https://doaj.org/toc/1751-8369 1751-8369 doi:10.3402/polar.v34.22784 https://doaj.org/article/b24481df58e3460885f972ef4125f1f1 |
op_doi |
https://doi.org/10.3402/polar.v34.22784 |
container_title |
Polar Research |
container_volume |
34 |
container_issue |
1 |
container_start_page |
22784 |
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1766263616013598720 |