Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia)
The Kostomuksha mining plant (KMP, Republic of Karelia, Russia), which is an important producer of iron pellets, is situated in the upper part of the Kenti–Kento lake–river system. In this water system, Lake Kostomuksha drains its waters through a chain of small lakes into the larger Lake Kuito and...
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2024
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Online Access: | http://hdl.handle.net/10138/578089 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/578089 2024-09-15T18:00:10+00:00 Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) Tkatcheva, V. Holopainen, I. J. Hyvärinen, H. 2024-06-27T13:44:39Z 209-220 application/pdf http://hdl.handle.net/10138/578089 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 3 5 http://hdl.handle.net/10138/578089 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z The Kostomuksha mining plant (KMP, Republic of Karelia, Russia), which is an important producer of iron pellets, is situated in the upper part of the Kenti–Kento lake–river system. In this water system, Lake Kostomuksha drains its waters through a chain of small lakes into the larger Lake Kuito and on to the White Sea. Effluents from the mining plant have been deposited in Lake Kostomuksha since 1982. For this study, samples of perch (Perca fluviatilis) were obtained from three metal-contaminated lakes with different pollutant concentrations downstream from Lake Kostomuksha. The concentrations of heavy metals (Hg, Cd, Cu, Zn, Ni and Cr) in fish liver and muscle were analysed. Concentrations of Hg, Ni and Cr (1.13, 0.09 and 0.08 ug g–1 dry weight, respectively) in fish liver from the studied lakes were higher than those in the control lake, Kamennoe (0.43, < 0.001, < 0.001 ug g–1), which is not directly influenced by the KMP. In the uppermost lake, Poppalijärvi, the concentration of Hg in perch muscle and liver was > 1.0 ug g–1 dry weight. Compared to the control lake, the electron microscope study of liver tissue from perch in this lake showed an increase in the distance between hepatocytes, a decrease in the number of nuclear pores and the smallest mitochondria of all the lakes studied. Article in Journal/Newspaper Boreal Environment Research karelia* Republic of Karelia White Sea HELDA – University of Helsinki Open Repository |
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HELDA – University of Helsinki Open Repository |
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ftunivhelsihelda |
language |
English |
description |
The Kostomuksha mining plant (KMP, Republic of Karelia, Russia), which is an important producer of iron pellets, is situated in the upper part of the Kenti–Kento lake–river system. In this water system, Lake Kostomuksha drains its waters through a chain of small lakes into the larger Lake Kuito and on to the White Sea. Effluents from the mining plant have been deposited in Lake Kostomuksha since 1982. For this study, samples of perch (Perca fluviatilis) were obtained from three metal-contaminated lakes with different pollutant concentrations downstream from Lake Kostomuksha. The concentrations of heavy metals (Hg, Cd, Cu, Zn, Ni and Cr) in fish liver and muscle were analysed. Concentrations of Hg, Ni and Cr (1.13, 0.09 and 0.08 ug g–1 dry weight, respectively) in fish liver from the studied lakes were higher than those in the control lake, Kamennoe (0.43, < 0.001, < 0.001 ug g–1), which is not directly influenced by the KMP. In the uppermost lake, Poppalijärvi, the concentration of Hg in perch muscle and liver was > 1.0 ug g–1 dry weight. Compared to the control lake, the electron microscope study of liver tissue from perch in this lake showed an increase in the distance between hepatocytes, a decrease in the number of nuclear pores and the smallest mitochondria of all the lakes studied. |
format |
Article in Journal/Newspaper |
author |
Tkatcheva, V. Holopainen, I. J. Hyvärinen, H. |
spellingShingle |
Tkatcheva, V. Holopainen, I. J. Hyvärinen, H. Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
author_facet |
Tkatcheva, V. Holopainen, I. J. Hyvärinen, H. |
author_sort |
Tkatcheva, V. |
title |
Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
title_short |
Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
title_full |
Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
title_fullStr |
Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
title_full_unstemmed |
Heavy metals in perch (Perca fluviatilis) from the Kostomuksha region (North-western Karelia, Russia) |
title_sort |
heavy metals in perch (perca fluviatilis) from the kostomuksha region (north-western karelia, russia) |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/578089 |
genre |
Boreal Environment Research karelia* Republic of Karelia White Sea |
genre_facet |
Boreal Environment Research karelia* Republic of Karelia White Sea |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 3 5 http://hdl.handle.net/10138/578089 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1810437307460747264 |