Climate effects on Barents Sea ecosystem dynamics
Abstract Dalpadado, P., Ingvaldsen, R. B., Stige, L. C., Bogstad, B., Knutsen, T., Ottersen, G., and Ellertsen, B. 2012. Climate effects on Barents Sea ecosystem dynamics. – ICES Journal of Marine Science, 69: . Effects of climate variability and change on sea temperature, currents, and water mass d...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fss063 http://academic.oup.com/icesjms/article-pdf/69/7/1303/29144318/fss063.pdf |
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croxfordunivpr:10.1093/icesjms/fss063 2024-05-19T07:35:02+00:00 Climate effects on Barents Sea ecosystem dynamics Dalpadado, Padmini Ingvaldsen, Randi B. Stige, Leif Christian Bogstad, Bjarte Knutsen, Tor Ottersen, Geir Ellertsen, Bjørnar 2012 http://dx.doi.org/10.1093/icesjms/fss063 http://academic.oup.com/icesjms/article-pdf/69/7/1303/29144318/fss063.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 69, issue 7, page 1303-1316 ISSN 1095-9289 1054-3139 journal-article 2012 croxfordunivpr https://doi.org/10.1093/icesjms/fss063 2024-05-02T09:31:14Z Abstract Dalpadado, P., Ingvaldsen, R. B., Stige, L. C., Bogstad, B., Knutsen, T., Ottersen, G., and Ellertsen, B. 2012. Climate effects on Barents Sea ecosystem dynamics. – ICES Journal of Marine Science, 69: . Effects of climate variability and change on sea temperature, currents, and water mass distribution are likely to affect the productivity and structure of high-latitude ecosystems. This paper focuses on the Barents Sea (BS), a productive Arcto–boreal shelf ecosystem sustaining several ecologically and economically important fish species. The water masses in the region are classified as Atlantic, Arctic, and mixed, each having a distinct ecological signature. The pronounced increase in temperature and a reduction in the area covered by Arctic water that has taken place during the past decade have affected the ecology of the region. An increase in biomass of lipid-rich euphausiids in recent years, possibly linked to the temperature increase, has apparently provided good feeding and growth conditions for several species, including capelin and young cod. The observed reduction in Arctic zooplankton may on the other hand have negative implications for polar cod and other zooplankton predators linked to the Arctic foodweb. Despite these changes, the BS at present seems to maintain relatively stable levels of boreal zooplankton biomass and production, with no significant changes in the abundances of Calanus finmarchicus or the episodic immigrant C. helgolandicus. Article in Journal/Newspaper Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Calanus finmarchicus polar cod Zooplankton Oxford University Press ICES Journal of Marine Science 69 7 1303 1316 |
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English |
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Abstract Dalpadado, P., Ingvaldsen, R. B., Stige, L. C., Bogstad, B., Knutsen, T., Ottersen, G., and Ellertsen, B. 2012. Climate effects on Barents Sea ecosystem dynamics. – ICES Journal of Marine Science, 69: . Effects of climate variability and change on sea temperature, currents, and water mass distribution are likely to affect the productivity and structure of high-latitude ecosystems. This paper focuses on the Barents Sea (BS), a productive Arcto–boreal shelf ecosystem sustaining several ecologically and economically important fish species. The water masses in the region are classified as Atlantic, Arctic, and mixed, each having a distinct ecological signature. The pronounced increase in temperature and a reduction in the area covered by Arctic water that has taken place during the past decade have affected the ecology of the region. An increase in biomass of lipid-rich euphausiids in recent years, possibly linked to the temperature increase, has apparently provided good feeding and growth conditions for several species, including capelin and young cod. The observed reduction in Arctic zooplankton may on the other hand have negative implications for polar cod and other zooplankton predators linked to the Arctic foodweb. Despite these changes, the BS at present seems to maintain relatively stable levels of boreal zooplankton biomass and production, with no significant changes in the abundances of Calanus finmarchicus or the episodic immigrant C. helgolandicus. |
format |
Article in Journal/Newspaper |
author |
Dalpadado, Padmini Ingvaldsen, Randi B. Stige, Leif Christian Bogstad, Bjarte Knutsen, Tor Ottersen, Geir Ellertsen, Bjørnar |
spellingShingle |
Dalpadado, Padmini Ingvaldsen, Randi B. Stige, Leif Christian Bogstad, Bjarte Knutsen, Tor Ottersen, Geir Ellertsen, Bjørnar Climate effects on Barents Sea ecosystem dynamics |
author_facet |
Dalpadado, Padmini Ingvaldsen, Randi B. Stige, Leif Christian Bogstad, Bjarte Knutsen, Tor Ottersen, Geir Ellertsen, Bjørnar |
author_sort |
Dalpadado, Padmini |
title |
Climate effects on Barents Sea ecosystem dynamics |
title_short |
Climate effects on Barents Sea ecosystem dynamics |
title_full |
Climate effects on Barents Sea ecosystem dynamics |
title_fullStr |
Climate effects on Barents Sea ecosystem dynamics |
title_full_unstemmed |
Climate effects on Barents Sea ecosystem dynamics |
title_sort |
climate effects on barents sea ecosystem dynamics |
publisher |
Oxford University Press (OUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1093/icesjms/fss063 http://academic.oup.com/icesjms/article-pdf/69/7/1303/29144318/fss063.pdf |
genre |
Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Calanus finmarchicus polar cod Zooplankton |
genre_facet |
Arctic Atlantic Arctic Atlantic-Arctic Barents Sea Calanus finmarchicus polar cod Zooplankton |
op_source |
ICES Journal of Marine Science volume 69, issue 7, page 1303-1316 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fss063 |
container_title |
ICES Journal of Marine Science |
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69 |
container_issue |
7 |
container_start_page |
1303 |
op_container_end_page |
1316 |
_version_ |
1799473379375316992 |