Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient
Mercury is a highly toxic element for consumers, but its relation to amino acids and physiology of wild fish is not well known. The main aim of this study was to evaluate how total mercury content (THg) of northern pike (Esox lucius) is related to amino acids and potentially important environmental...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/564794 2024-01-07T09:46:54+01:00 Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient Kozak, Natalia Kahilainen, Kimmo K. Pakkanen, Hannu K. Hayden, Brian Østbye, Kjartan Taipale, Sami J. Biological stations Lammi Biological Station Kilpisjärvi Biological Station 2023-09-07T12:11:01Z 12 application/pdf http://hdl.handle.net/10138/564794 eng eng ACADEMIC PRESS INC ELSEVIER SCIENCE 10.1016/j.envres.2023.116511 Kozak , N , Kahilainen , K K , Pakkanen , H K , Hayden , B , Østbye , K & Taipale , S J 2023 , ' Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient ' , Environmental Research , vol. 233 , 116511 . https://doi.org/10.1016/j.envres.2023.116511 ORCID: /0000-0002-1539-014X/work/142004681 37369304 b4bc2881-7eb2-4347-8240-bed4fadabad3 http://hdl.handle.net/10138/564794 001040514000001 cc_by openAccess info:eu-repo/semantics/openAccess Age Cysteine Growth Methionine Proline Total mercury 1172 Environmental sciences Article publishedVersion 2023 ftunivhelsihelda 2023-12-14T00:01:55Z Mercury is a highly toxic element for consumers, but its relation to amino acids and physiology of wild fish is not well known. The main aim of this study was to evaluate how total mercury content (THg) of northern pike (Esox lucius) is related to amino acids and potentially important environmental and biological factors along a climateproductivity gradient of ten subarctic lakes. Linear regression between THg and sixteen amino acids content [nmol mg-1 dry weight] from white dorsal muscle of pike from these lakes were tested. Lastly, a general linear model (GLM) for age-corrected THg was used to test which factors are significantly related to mercury content of pike. There was a positive relationship between THg and proline. Seven out of sixteen analysed amino acids (histidine, threonine, arginine, serine, glutamic acid, glycine, and aspartic acid) were significantly negatively related to warmer and more productive lakes, while THg showed a positive relationship. GLM model indicated higher THg was found in higher trophic level pike with lower cysteine content and inhabiting warmer and more productive lakes with larger catchment containing substantial proportion of peatland area. In general, THg was not only related to the biological and environmental variables but also to amino acid content. Peer reviewed Article in Journal/Newspaper Subarctic HELDA – University of Helsinki Open Repository Environmental Research 233 116511 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Age Cysteine Growth Methionine Proline Total mercury 1172 Environmental sciences |
spellingShingle |
Age Cysteine Growth Methionine Proline Total mercury 1172 Environmental sciences Kozak, Natalia Kahilainen, Kimmo K. Pakkanen, Hannu K. Hayden, Brian Østbye, Kjartan Taipale, Sami J. Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
topic_facet |
Age Cysteine Growth Methionine Proline Total mercury 1172 Environmental sciences |
description |
Mercury is a highly toxic element for consumers, but its relation to amino acids and physiology of wild fish is not well known. The main aim of this study was to evaluate how total mercury content (THg) of northern pike (Esox lucius) is related to amino acids and potentially important environmental and biological factors along a climateproductivity gradient of ten subarctic lakes. Linear regression between THg and sixteen amino acids content [nmol mg-1 dry weight] from white dorsal muscle of pike from these lakes were tested. Lastly, a general linear model (GLM) for age-corrected THg was used to test which factors are significantly related to mercury content of pike. There was a positive relationship between THg and proline. Seven out of sixteen analysed amino acids (histidine, threonine, arginine, serine, glutamic acid, glycine, and aspartic acid) were significantly negatively related to warmer and more productive lakes, while THg showed a positive relationship. GLM model indicated higher THg was found in higher trophic level pike with lower cysteine content and inhabiting warmer and more productive lakes with larger catchment containing substantial proportion of peatland area. In general, THg was not only related to the biological and environmental variables but also to amino acid content. Peer reviewed |
author2 |
Biological stations Lammi Biological Station Kilpisjärvi Biological Station |
format |
Article in Journal/Newspaper |
author |
Kozak, Natalia Kahilainen, Kimmo K. Pakkanen, Hannu K. Hayden, Brian Østbye, Kjartan Taipale, Sami J. |
author_facet |
Kozak, Natalia Kahilainen, Kimmo K. Pakkanen, Hannu K. Hayden, Brian Østbye, Kjartan Taipale, Sami J. |
author_sort |
Kozak, Natalia |
title |
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
title_short |
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
title_full |
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
title_fullStr |
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
title_full_unstemmed |
Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient |
title_sort |
mercury and amino acid content relations in northern pike (esox lucius) in subarctic lakes along a climate-productivity gradient |
publisher |
ACADEMIC PRESS INC ELSEVIER SCIENCE |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/564794 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
10.1016/j.envres.2023.116511 Kozak , N , Kahilainen , K K , Pakkanen , H K , Hayden , B , Østbye , K & Taipale , S J 2023 , ' Mercury and amino acid content relations in northern pike (Esox lucius) in subarctic lakes along a climate-productivity gradient ' , Environmental Research , vol. 233 , 116511 . https://doi.org/10.1016/j.envres.2023.116511 ORCID: /0000-0002-1539-014X/work/142004681 37369304 b4bc2881-7eb2-4347-8240-bed4fadabad3 http://hdl.handle.net/10138/564794 001040514000001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Environmental Research |
container_volume |
233 |
container_start_page |
116511 |
_version_ |
1787428824095391744 |