Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland
Abstract In a warmer Arctic with less sea ice and stronger stratification, the environmental changes are expected to impact the pelagic food web, but few biological studies supporting this exist compared with the well‐documented physical changes. Here, we analyze a subset of 13 yr of data from Disko...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11380 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 |
id |
crwiley:10.1002/lno.11380 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/lno.11380 2024-06-23T07:49:20+00:00 Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland Møller, Eva Friis Nielsen, Torkel Gissel Miljøstyrelsen 2019 http://dx.doi.org/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11380 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 65, issue 6, page 1175-1188 ISSN 0024-3590 1939-5590 journal-article 2019 crwiley https://doi.org/10.1002/lno.11380 2024-06-06T04:22:28Z Abstract In a warmer Arctic with less sea ice and stronger stratification, the environmental changes are expected to impact the pelagic food web, but few biological studies supporting this exist compared with the well‐documented physical changes. Here, we analyze a subset of 13 yr of data from Disko Bay, Western Greenland, from the period 1992 to 2018 for trends in the key zooplankton genus Calanus during May and June in relation to physical conditions. In the 1990s, the small North Atlantic species Calanus finmarchicus and the two larger Arctic species Calanus hyperboreus and Calanus glacialis contributed equally to the copepod biomass. With the reduction in sea ice cover, however, the Arctic species have declined, and currently C. finmarchicus dominates the biomass. Because of the species shift, the Calanus community is now dominated by smaller individuals and the lipid content of Calanus females during spring and summer has decreased by 34%. Moreover, during the last decade the annual variation in population size has been prominent, Calanus virtually being absent in some years. Because of the central role of Calanus in the Arctic food web, the changes will likely impact higher trophic levels, including fish, sea birds, and marine mammals. Article in Journal/Newspaper Arctic Calanus finmarchicus Calanus glacialis Calanus hyperboreus Disko Bay Greenland North Atlantic Sea ice Zooplankton Wiley Online Library Arctic Greenland Limnology and Oceanography 65 6 1175 1188 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract In a warmer Arctic with less sea ice and stronger stratification, the environmental changes are expected to impact the pelagic food web, but few biological studies supporting this exist compared with the well‐documented physical changes. Here, we analyze a subset of 13 yr of data from Disko Bay, Western Greenland, from the period 1992 to 2018 for trends in the key zooplankton genus Calanus during May and June in relation to physical conditions. In the 1990s, the small North Atlantic species Calanus finmarchicus and the two larger Arctic species Calanus hyperboreus and Calanus glacialis contributed equally to the copepod biomass. With the reduction in sea ice cover, however, the Arctic species have declined, and currently C. finmarchicus dominates the biomass. Because of the species shift, the Calanus community is now dominated by smaller individuals and the lipid content of Calanus females during spring and summer has decreased by 34%. Moreover, during the last decade the annual variation in population size has been prominent, Calanus virtually being absent in some years. Because of the central role of Calanus in the Arctic food web, the changes will likely impact higher trophic levels, including fish, sea birds, and marine mammals. |
author2 |
Miljøstyrelsen |
format |
Article in Journal/Newspaper |
author |
Møller, Eva Friis Nielsen, Torkel Gissel |
spellingShingle |
Møller, Eva Friis Nielsen, Torkel Gissel Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
author_facet |
Møller, Eva Friis Nielsen, Torkel Gissel |
author_sort |
Møller, Eva Friis |
title |
Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
title_short |
Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
title_full |
Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
title_fullStr |
Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
title_full_unstemmed |
Borealization of Arctic zooplankton—smaller and less fat zooplankton species in Disko Bay, Western Greenland |
title_sort |
borealization of arctic zooplankton—smaller and less fat zooplankton species in disko bay, western greenland |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11380 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11380 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Calanus finmarchicus Calanus glacialis Calanus hyperboreus Disko Bay Greenland North Atlantic Sea ice Zooplankton |
genre_facet |
Arctic Calanus finmarchicus Calanus glacialis Calanus hyperboreus Disko Bay Greenland North Atlantic Sea ice Zooplankton |
op_source |
Limnology and Oceanography volume 65, issue 6, page 1175-1188 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/lno.11380 |
container_title |
Limnology and Oceanography |
container_volume |
65 |
container_issue |
6 |
container_start_page |
1175 |
op_container_end_page |
1188 |
_version_ |
1802639709385523200 |