Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes
Ecological theory predicts that the relative distribution of primary production across habitats influence fish size structure and biomass production. In this study, we assessed individual, population, and community-level consequences for brown trout (Salmo trutta) and Arctic char (Salvelinus alpinus...
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2022
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203279 https://doi.org/10.1007/s10021-021-00733-6 |
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ftumeauniv:oai:DiVA.org:umu-203279 2023-10-09T21:48:33+02:00 Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes Norman, Sven Nilsson, Karin A. Klaus, Marcus Seekell, David Karlsson, Jan Byström, Pär 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203279 https://doi.org/10.1007/s10021-021-00733-6 eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap Department of Wildlife, Fish and Environmental Studies, SLU, Umeå, Sweden Department of Forest Ecology and Management, SLU, Umeå, Sweden Ecosystems, 1432-9840, 2022, 25:7, s. 1555-1570 orcid:0000-0001-6700-6149 orcid:0000-0001-5730-0694 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203279 doi:10.1007/s10021-021-00733-6 ISI:000741935100001 Scopus 2-s2.0-85122824537 info:eu-repo/semantics/openAccess Arctic char Benthic primary production Brown trout Keywords Lake productivity Ontogenetic asymmetry Pelagic primary production Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2022 ftumeauniv https://doi.org/10.1007/s10021-021-00733-6 2023-09-22T13:56:47Z Ecological theory predicts that the relative distribution of primary production across habitats influence fish size structure and biomass production. In this study, we assessed individual, population, and community-level consequences for brown trout (Salmo trutta) and Arctic char (Salvelinus alpinus) of variation in estimated habitat specific (benthic and pelagic) and total whole lake (GPPwhole) gross primary production in 27 northern oligotrophic lakes. We found that higher contribution of benthic primary production to GPPwhole was associated with higher community biomass and larger maximum and mean sizes of fish. At the population level, species-specific responses differed. Increased benthic primary production (GPPBenthic) correlated to higher population biomass of brown trout regardless of being alone or in sympatry, while Arctic char responded positively to pelagic primary production (GPPPelagic) in sympatric populations. In sympatric lakes, the maximum size of both species was positively related to both GPPBenthic and the benthic contribution to GPPWhole. In allopatric lakes, brown trout mean and maximum size and Arctic char mean size were positively related to the benthic proportion of GPPWhole. Our results highlight the importance of light-controlled benthic primary production for fish biomass production in oligotrophic northern lakes. Our results further suggest that consequences of ontogenetic asymmetry and niche shifts may cause the distribution of primary production across habitats to be more important than the total ecosystem primary production for fish size, population biomass, and production. Awareness of the relationships between light availability and asymmetric resource production favoring large fish and fish production may allow for cost-efficient and more informed management actions in northern oligotrophic lakes. Article in Journal/Newspaper Arctic Salvelinus alpinus Umeå University: Publications (DiVA) Arctic Ecosystems 25 7 1555 1570 |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Arctic char Benthic primary production Brown trout Keywords Lake productivity Ontogenetic asymmetry Pelagic primary production Ecology Ekologi |
spellingShingle |
Arctic char Benthic primary production Brown trout Keywords Lake productivity Ontogenetic asymmetry Pelagic primary production Ecology Ekologi Norman, Sven Nilsson, Karin A. Klaus, Marcus Seekell, David Karlsson, Jan Byström, Pär Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
topic_facet |
Arctic char Benthic primary production Brown trout Keywords Lake productivity Ontogenetic asymmetry Pelagic primary production Ecology Ekologi |
description |
Ecological theory predicts that the relative distribution of primary production across habitats influence fish size structure and biomass production. In this study, we assessed individual, population, and community-level consequences for brown trout (Salmo trutta) and Arctic char (Salvelinus alpinus) of variation in estimated habitat specific (benthic and pelagic) and total whole lake (GPPwhole) gross primary production in 27 northern oligotrophic lakes. We found that higher contribution of benthic primary production to GPPwhole was associated with higher community biomass and larger maximum and mean sizes of fish. At the population level, species-specific responses differed. Increased benthic primary production (GPPBenthic) correlated to higher population biomass of brown trout regardless of being alone or in sympatry, while Arctic char responded positively to pelagic primary production (GPPPelagic) in sympatric populations. In sympatric lakes, the maximum size of both species was positively related to both GPPBenthic and the benthic contribution to GPPWhole. In allopatric lakes, brown trout mean and maximum size and Arctic char mean size were positively related to the benthic proportion of GPPWhole. Our results highlight the importance of light-controlled benthic primary production for fish biomass production in oligotrophic northern lakes. Our results further suggest that consequences of ontogenetic asymmetry and niche shifts may cause the distribution of primary production across habitats to be more important than the total ecosystem primary production for fish size, population biomass, and production. Awareness of the relationships between light availability and asymmetric resource production favoring large fish and fish production may allow for cost-efficient and more informed management actions in northern oligotrophic lakes. |
format |
Article in Journal/Newspaper |
author |
Norman, Sven Nilsson, Karin A. Klaus, Marcus Seekell, David Karlsson, Jan Byström, Pär |
author_facet |
Norman, Sven Nilsson, Karin A. Klaus, Marcus Seekell, David Karlsson, Jan Byström, Pär |
author_sort |
Norman, Sven |
title |
Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
title_short |
Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
title_full |
Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
title_fullStr |
Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
title_full_unstemmed |
Effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
title_sort |
effects of habitat-specific primary production on fish size, biomass, and production in northern oligotrophic lakes |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203279 https://doi.org/10.1007/s10021-021-00733-6 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_relation |
Ecosystems, 1432-9840, 2022, 25:7, s. 1555-1570 orcid:0000-0001-6700-6149 orcid:0000-0001-5730-0694 http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203279 doi:10.1007/s10021-021-00733-6 ISI:000741935100001 Scopus 2-s2.0-85122824537 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10021-021-00733-6 |
container_title |
Ecosystems |
container_volume |
25 |
container_issue |
7 |
container_start_page |
1555 |
op_container_end_page |
1570 |
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1779311631871770624 |