Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes?
The additional input and enhanced cycling of nutrients derived from introduced fish can be a significant factor altering nutrient dynamics in oligotrophic lakes. To test this, we used a bioenergetic model to estimate the fish-derived nutrient load in Lake Kuutsjurvi, a historically fishless boreal l...
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Online Access: | http://hdl.handle.net/10138/178879 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/178879 2024-01-07T09:43:10+01:00 Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? Milardi, Marco Lappalainen, Jyrki McGowan, Suzanne Weckström, Jan Environmental Sciences Environmental Change Research Unit (ECRU) 2017-04-07T21:16:36Z 14 application/pdf http://hdl.handle.net/10138/178879 eng eng PAGEPRESS PUBL 10.4081/jlimnol.2016.1364 The authors would like to thank Daniel Schindler for his help with the bioenergetic and nutrient modeling. We would also like to thank Petri Ekholm and Jussi Vuorenmaa at the Finnish Environmental Centre for their help with catchment area load and for providing the P deposition rates, respectively. We would also like to acknowledge the Varrio Research Station personnel for helping with field sampling, the Finnish Meteorological Institute for providing N atmospheric deposition data, Mari Kovero for providing additional information on diatoms and three anonymous reviewers for their useful comments to the paper. This project was started by Anne Liljendahl and funded by the Maj and Tor Nessling Foundation and the Academy of Finland (FICCA-program, Cliche Consortium). Milardi , M , Lappalainen , J , McGowan , S & Weckström , J 2017 , ' Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? ' , Journal of Limnology , vol. 76 , no. 1 , pp. 1-14 . https://doi.org/10.4081/jlimnol.2016.1364 ORCID: /0000-0002-4631-3788/work/40635099 ORCID: /0000-0001-5604-617X/work/40635121 85011708727 fbad3e52-a5fd-4076-8f65-bd6b3f4cceae http://hdl.handle.net/10138/178879 000396708700001 cc_by_nc openAccess info:eu-repo/semantics/openAccess Nutrient cycle bioenergetic model fish introduction chlorophyll and carotenoid pigments diatoms stable isotopes FOOD WEBS ALPINE LAKES ASTERIONELLA-FORMOSA COMMUNITY STRUCTURE MOUNTAIN LAKES ORGANIC-CARBON REGIME SHIFTS FLUSHED LAKE SPRING BLOOM BROWN TROUT 1181 Ecology evolutionary biology Article publishedVersion 2017 ftunivhelsihelda 2023-12-14T00:12:19Z The additional input and enhanced cycling of nutrients derived from introduced fish can be a significant factor altering nutrient dynamics in oligotrophic lakes. To test this, we used a bioenergetic model to estimate the fish-derived nutrient load in Lake Kuutsjurvi, a historically fishless boreal lake of northern Fennoscandia. The lake was selected because of the absence of other anthropogenic stressors, a known stocking history and the possibility of quantitatively estimating the size-structure and biomass of the fish population through a mass removal. Subsequently, we used a mass balance model to compare fish-derived nutrients with other nutrient load pathways. For comparison over longer timescales, we used lake sediment records of diatoms, chlorophyll and carotenoid pigments, C: N ratios and stable isotopes to infer whether fish introduction produced detectable changes in the lake trophic state, primary productivity and terrestrial nutrient input. Based on the nutrient mass balance model, we found that phosphorus and nitrogen derived from fish were 0.46% and 2.2%, respectively, of the total load to the lake, suggesting that fish introduction could not markedly increase the nutrient load. Accordingly, the palaeolimnological record indicated little increase in primary production but instead a shift from pelagic to benthic production after fish introduction. Peer reviewed Article in Journal/Newspaper Fennoscandia HELDA – University of Helsinki Open Repository Boreal Lake ENVELOPE(-127.670,-127.670,58.802,58.802) Journal of Limnology |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Nutrient cycle bioenergetic model fish introduction chlorophyll and carotenoid pigments diatoms stable isotopes FOOD WEBS ALPINE LAKES ASTERIONELLA-FORMOSA COMMUNITY STRUCTURE MOUNTAIN LAKES ORGANIC-CARBON REGIME SHIFTS FLUSHED LAKE SPRING BLOOM BROWN TROUT 1181 Ecology evolutionary biology |
spellingShingle |
Nutrient cycle bioenergetic model fish introduction chlorophyll and carotenoid pigments diatoms stable isotopes FOOD WEBS ALPINE LAKES ASTERIONELLA-FORMOSA COMMUNITY STRUCTURE MOUNTAIN LAKES ORGANIC-CARBON REGIME SHIFTS FLUSHED LAKE SPRING BLOOM BROWN TROUT 1181 Ecology evolutionary biology Milardi, Marco Lappalainen, Jyrki McGowan, Suzanne Weckström, Jan Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
topic_facet |
Nutrient cycle bioenergetic model fish introduction chlorophyll and carotenoid pigments diatoms stable isotopes FOOD WEBS ALPINE LAKES ASTERIONELLA-FORMOSA COMMUNITY STRUCTURE MOUNTAIN LAKES ORGANIC-CARBON REGIME SHIFTS FLUSHED LAKE SPRING BLOOM BROWN TROUT 1181 Ecology evolutionary biology |
description |
The additional input and enhanced cycling of nutrients derived from introduced fish can be a significant factor altering nutrient dynamics in oligotrophic lakes. To test this, we used a bioenergetic model to estimate the fish-derived nutrient load in Lake Kuutsjurvi, a historically fishless boreal lake of northern Fennoscandia. The lake was selected because of the absence of other anthropogenic stressors, a known stocking history and the possibility of quantitatively estimating the size-structure and biomass of the fish population through a mass removal. Subsequently, we used a mass balance model to compare fish-derived nutrients with other nutrient load pathways. For comparison over longer timescales, we used lake sediment records of diatoms, chlorophyll and carotenoid pigments, C: N ratios and stable isotopes to infer whether fish introduction produced detectable changes in the lake trophic state, primary productivity and terrestrial nutrient input. Based on the nutrient mass balance model, we found that phosphorus and nitrogen derived from fish were 0.46% and 2.2%, respectively, of the total load to the lake, suggesting that fish introduction could not markedly increase the nutrient load. Accordingly, the palaeolimnological record indicated little increase in primary production but instead a shift from pelagic to benthic production after fish introduction. Peer reviewed |
author2 |
Environmental Sciences Environmental Change Research Unit (ECRU) |
format |
Article in Journal/Newspaper |
author |
Milardi, Marco Lappalainen, Jyrki McGowan, Suzanne Weckström, Jan |
author_facet |
Milardi, Marco Lappalainen, Jyrki McGowan, Suzanne Weckström, Jan |
author_sort |
Milardi, Marco |
title |
Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
title_short |
Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
title_full |
Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
title_fullStr |
Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
title_full_unstemmed |
Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
title_sort |
can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? |
publisher |
PAGEPRESS PUBL |
publishDate |
2017 |
url |
http://hdl.handle.net/10138/178879 |
long_lat |
ENVELOPE(-127.670,-127.670,58.802,58.802) |
geographic |
Boreal Lake |
geographic_facet |
Boreal Lake |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
10.4081/jlimnol.2016.1364 The authors would like to thank Daniel Schindler for his help with the bioenergetic and nutrient modeling. We would also like to thank Petri Ekholm and Jussi Vuorenmaa at the Finnish Environmental Centre for their help with catchment area load and for providing the P deposition rates, respectively. We would also like to acknowledge the Varrio Research Station personnel for helping with field sampling, the Finnish Meteorological Institute for providing N atmospheric deposition data, Mari Kovero for providing additional information on diatoms and three anonymous reviewers for their useful comments to the paper. This project was started by Anne Liljendahl and funded by the Maj and Tor Nessling Foundation and the Academy of Finland (FICCA-program, Cliche Consortium). Milardi , M , Lappalainen , J , McGowan , S & Weckström , J 2017 , ' Can fish introductions alter nutrient cycles in previously fishless high-latitude lakes? ' , Journal of Limnology , vol. 76 , no. 1 , pp. 1-14 . https://doi.org/10.4081/jlimnol.2016.1364 ORCID: /0000-0002-4631-3788/work/40635099 ORCID: /0000-0001-5604-617X/work/40635121 85011708727 fbad3e52-a5fd-4076-8f65-bd6b3f4cceae http://hdl.handle.net/10138/178879 000396708700001 |
op_rights |
cc_by_nc openAccess info:eu-repo/semantics/openAccess |
container_title |
Journal of Limnology |
_version_ |
1787424421867159552 |