Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring
Abstract The copepod Calanus finmarchicus was investigated in four Subpolar Basins, Labrador, Irminger, Iceland, and Norwegian Seas, during spring, covering the time of ascent, grazing, and initiation of reproduction in the area. Lipid content, spawning activity, and stage composition and vital rate...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2022
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsac013 https://academic.oup.com/icesjms/article-pdf/79/3/785/43513737/fsac013.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsac013 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsac013 2023-05-15T15:47:56+02:00 Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring Jónasdóttir, Sigrún H Naustvoll, Lars Teglhus, Frederik Wolff Agersted, Mette Dalgaard Grenwald, Julie C Melle, Webjørn Nielsen, Torkel Gissel Dolgov, Andrey European Union Euro-BASIN ECOTIP 2022 http://dx.doi.org/10.1093/icesjms/fsac013 https://academic.oup.com/icesjms/article-pdf/79/3/785/43513737/fsac013.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 79, issue 3, page 785-802 ISSN 1054-3139 1095-9289 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2022 croxfordunivpr https://doi.org/10.1093/icesjms/fsac013 2022-09-23T11:04:41Z Abstract The copepod Calanus finmarchicus was investigated in four Subpolar Basins, Labrador, Irminger, Iceland, and Norwegian Seas, during spring, covering the time of ascent, grazing, and initiation of reproduction in the area. Lipid content, spawning activity, and stage composition and vital rates, such as egg and faecal pellet production were measured and linked to environmental parameters. Specific egg- and faecal pellet production rates varied with diatom biomass and were negatively correlated with temperature. Comparison of the various biological indicators revealed different life history traits C. finmarchicus has adopted in the different basins. In Labrador Sea, the females have invested in large eggs compared to the remaining basins. Labrador and Irminger Sea C. finmarchicus invest in size that we propose to be adaptation to cope with warmer overwintering habitats resulting in larger potential lipid storage capacity, while the Iceland and Norwegian Sea females can invest their remaining lipid storage in spring to fuel lipid-driven egg production. Grazing pressure on the phytoplankton community was estimated and compared between copepod and two dominating groups of protozooplankton; ciliates and heterotrophic dinoflagellates. Despite approximately the same biomass in the upper 100 m, the grazing impact of the protozoan grazers was an order of magnitude higher than the C. finmarchicus dominated mesozooplankton. This illustrates the importance to also include the smallest grazers when studying the spring bloom in high latitude marine ecosystems if the fate of the primary production should be fully understood. Article in Journal/Newspaper Calanus finmarchicus Iceland Labrador Sea Norwegian Sea Oxford University Press (via Crossref) Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Norwegian Sea ICES Journal of Marine Science |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Jónasdóttir, Sigrún H Naustvoll, Lars Teglhus, Frederik Wolff Agersted, Mette Dalgaard Grenwald, Julie C Melle, Webjørn Nielsen, Torkel Gissel Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The copepod Calanus finmarchicus was investigated in four Subpolar Basins, Labrador, Irminger, Iceland, and Norwegian Seas, during spring, covering the time of ascent, grazing, and initiation of reproduction in the area. Lipid content, spawning activity, and stage composition and vital rates, such as egg and faecal pellet production were measured and linked to environmental parameters. Specific egg- and faecal pellet production rates varied with diatom biomass and were negatively correlated with temperature. Comparison of the various biological indicators revealed different life history traits C. finmarchicus has adopted in the different basins. In Labrador Sea, the females have invested in large eggs compared to the remaining basins. Labrador and Irminger Sea C. finmarchicus invest in size that we propose to be adaptation to cope with warmer overwintering habitats resulting in larger potential lipid storage capacity, while the Iceland and Norwegian Sea females can invest their remaining lipid storage in spring to fuel lipid-driven egg production. Grazing pressure on the phytoplankton community was estimated and compared between copepod and two dominating groups of protozooplankton; ciliates and heterotrophic dinoflagellates. Despite approximately the same biomass in the upper 100 m, the grazing impact of the protozoan grazers was an order of magnitude higher than the C. finmarchicus dominated mesozooplankton. This illustrates the importance to also include the smallest grazers when studying the spring bloom in high latitude marine ecosystems if the fate of the primary production should be fully understood. |
author2 |
Dolgov, Andrey European Union Euro-BASIN ECOTIP |
format |
Article in Journal/Newspaper |
author |
Jónasdóttir, Sigrún H Naustvoll, Lars Teglhus, Frederik Wolff Agersted, Mette Dalgaard Grenwald, Julie C Melle, Webjørn Nielsen, Torkel Gissel |
author_facet |
Jónasdóttir, Sigrún H Naustvoll, Lars Teglhus, Frederik Wolff Agersted, Mette Dalgaard Grenwald, Julie C Melle, Webjørn Nielsen, Torkel Gissel |
author_sort |
Jónasdóttir, Sigrún H |
title |
Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
title_short |
Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
title_full |
Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
title_fullStr |
Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
title_full_unstemmed |
Calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
title_sort |
calanus finmarchicus basin scale life history traits and role in community carbon turnover during spring |
publisher |
Oxford University Press (OUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1093/icesjms/fsac013 https://academic.oup.com/icesjms/article-pdf/79/3/785/43513737/fsac013.pdf |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Irminger Sea Norwegian Sea |
geographic_facet |
Irminger Sea Norwegian Sea |
genre |
Calanus finmarchicus Iceland Labrador Sea Norwegian Sea |
genre_facet |
Calanus finmarchicus Iceland Labrador Sea Norwegian Sea |
op_source |
ICES Journal of Marine Science volume 79, issue 3, page 785-802 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsac013 |
container_title |
ICES Journal of Marine Science |
_version_ |
1766382916309352448 |