Direct and indirect climate forcing in a multi-species marine system
Interactions within and between species complicate quantification of climate effects, by causing indirect, often delayed, effects of climate fluctuations and compensation of mortality. Here we identify direct and indirect climate effects by analysing unique Russian time-series data from the Norwegia...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | http://hdl.handle.net/11250/108472 https://doi.org/10.1098/rspb.2010.0602 |
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ftimr:oai:imr.brage.unit.no:11250/108472 2023-05-15T15:39:00+02:00 Direct and indirect climate forcing in a multi-species marine system Ottersen, Geir Stige, Leif Christian Dalpadado, Padmini Chan, Kung-Sik Hjermann, Dag Ø. Lajus, Dmitry L. Yaragina, Natalia A. Stenseth, Nils Christian 2010-10 application/pdf http://hdl.handle.net/11250/108472 https://doi.org/10.1098/rspb.2010.0602 eng eng Royal Society Publishing urn:issn:0962-8452 urn:issn:1471-2954 http://hdl.handle.net/11250/108472 http://dx.doi.org/10.1098/rspb.2010.0602 3373-3531 277 Proceedings of the Royal Society B: Biological Sciences 1699 økosystemdynamikk ecosystem dynamics dyreplankton zooplankton populasjonsdynamikk population dynamics VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Journal article Peer reviewed 2010 ftimr https://doi.org/10.1098/rspb.2010.0602 2021-09-23T20:15:03Z Interactions within and between species complicate quantification of climate effects, by causing indirect, often delayed, effects of climate fluctuations and compensation of mortality. Here we identify direct and indirect climate effects by analysing unique Russian time-series data from the Norwegian Sea–Barents Sea ecosystem on the first life stages of cod, capelin, herring and haddock, their predators, competitors and zooplanktonic prey. By analysing growth and survival from one life stage to the next (eggs–larvae– juveniles–recruits), we find evidence for both bottom-up, direct and top-down effects of climate. Ambient zooplankton biomass predicts survival of all species, whereas ambient temperature mainly affects survival through effects on growth. In warm years, all species experienced improved growth and feeding conditions. Cohorts born following a warm year will, however, experience increased predation and competition because of increased densities of subadult cod and herring, leading to delayed climate effects. While climate thus affects early growth and survival through several mechanisms, only some of the identified mechanisms were found to be significant predictors of population growth. In particular, our findings exemplify that climate impacts are barely propagated to later life stages when density dependence is strong. Article in Journal/Newspaper Barents Sea Norwegian Sea Institute for Marine Research: Brage IMR Barents Sea Norwegian Sea Proceedings of the Royal Society B: Biological Sciences 277 1699 3411 3420 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
økosystemdynamikk ecosystem dynamics dyreplankton zooplankton populasjonsdynamikk population dynamics VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
spellingShingle |
økosystemdynamikk ecosystem dynamics dyreplankton zooplankton populasjonsdynamikk population dynamics VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 Ottersen, Geir Stige, Leif Christian Dalpadado, Padmini Chan, Kung-Sik Hjermann, Dag Ø. Lajus, Dmitry L. Yaragina, Natalia A. Stenseth, Nils Christian Direct and indirect climate forcing in a multi-species marine system |
topic_facet |
økosystemdynamikk ecosystem dynamics dyreplankton zooplankton populasjonsdynamikk population dynamics VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 |
description |
Interactions within and between species complicate quantification of climate effects, by causing indirect, often delayed, effects of climate fluctuations and compensation of mortality. Here we identify direct and indirect climate effects by analysing unique Russian time-series data from the Norwegian Sea–Barents Sea ecosystem on the first life stages of cod, capelin, herring and haddock, their predators, competitors and zooplanktonic prey. By analysing growth and survival from one life stage to the next (eggs–larvae– juveniles–recruits), we find evidence for both bottom-up, direct and top-down effects of climate. Ambient zooplankton biomass predicts survival of all species, whereas ambient temperature mainly affects survival through effects on growth. In warm years, all species experienced improved growth and feeding conditions. Cohorts born following a warm year will, however, experience increased predation and competition because of increased densities of subadult cod and herring, leading to delayed climate effects. While climate thus affects early growth and survival through several mechanisms, only some of the identified mechanisms were found to be significant predictors of population growth. In particular, our findings exemplify that climate impacts are barely propagated to later life stages when density dependence is strong. |
format |
Article in Journal/Newspaper |
author |
Ottersen, Geir Stige, Leif Christian Dalpadado, Padmini Chan, Kung-Sik Hjermann, Dag Ø. Lajus, Dmitry L. Yaragina, Natalia A. Stenseth, Nils Christian |
author_facet |
Ottersen, Geir Stige, Leif Christian Dalpadado, Padmini Chan, Kung-Sik Hjermann, Dag Ø. Lajus, Dmitry L. Yaragina, Natalia A. Stenseth, Nils Christian |
author_sort |
Ottersen, Geir |
title |
Direct and indirect climate forcing in a multi-species marine system |
title_short |
Direct and indirect climate forcing in a multi-species marine system |
title_full |
Direct and indirect climate forcing in a multi-species marine system |
title_fullStr |
Direct and indirect climate forcing in a multi-species marine system |
title_full_unstemmed |
Direct and indirect climate forcing in a multi-species marine system |
title_sort |
direct and indirect climate forcing in a multi-species marine system |
publisher |
Royal Society Publishing |
publishDate |
2010 |
url |
http://hdl.handle.net/11250/108472 https://doi.org/10.1098/rspb.2010.0602 |
geographic |
Barents Sea Norwegian Sea |
geographic_facet |
Barents Sea Norwegian Sea |
genre |
Barents Sea Norwegian Sea |
genre_facet |
Barents Sea Norwegian Sea |
op_source |
3373-3531 277 Proceedings of the Royal Society B: Biological Sciences 1699 |
op_relation |
urn:issn:0962-8452 urn:issn:1471-2954 http://hdl.handle.net/11250/108472 http://dx.doi.org/10.1098/rspb.2010.0602 |
op_doi |
https://doi.org/10.1098/rspb.2010.0602 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
277 |
container_issue |
1699 |
container_start_page |
3411 |
op_container_end_page |
3420 |
_version_ |
1766370462822039552 |