Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change
Zooplankton in Kongsfjorden, Svalbard, is shaped by irregular advection of seawater from the West Spitsbergen Current as well as input of freshwater of glacial and riverine origin. The zooplankton community reflects contributions of Arctic vs. Atlantic water masses in the fjord, and is changing with...
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Nature Research
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ftoceanrep:oai:oceanrep.geomar.de:48727 2023-05-15T14:55:51+02:00 Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change Hop, Haakon Wold, Anette Vihtakari, Mikko Daase, Malin Kwasniewski, Slawomir Gluchowska, Marta Lischka, Silke Buchholz, Friedrich Falk-Petersen, Stig 2019-06-20 text https://oceanrep.geomar.de/id/eprint/48727/ https://oceanrep.geomar.de/id/eprint/48727/1/2019_Book_TheEcosystemOfKongsfjordenSval.pdf https://doi.org/10.1007/978-3-319-46425-1_7 en eng Nature Research https://oceanrep.geomar.de/id/eprint/48727/1/2019_Book_TheEcosystemOfKongsfjordenSval.pdf Hop, H., Wold, A., Vihtakari, M., Daase, M., Kwasniewski, S., Gluchowska, M., Lischka, S. , Buchholz, F. and Falk-Petersen, S. (2019) Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change. In: The Ecosystem of Kongsfjorden, Svalbard. 2 . Nature Research, Cham, Switzerland, pp. 229-300. ISBN 978-3-319-46423-7 DOI 10.1007/978-3-319-46425-1_7 <https://doi.org/10.1007/978-3-319-46425-1_7>. doi:10.1007/978-3-319-46425-1_7 info:eu-repo/semantics/restrictedAccess Book chapter NonPeerReviewed 2019 ftoceanrep https://doi.org/10.1007/978-3-319-46425-1_7 2023-04-07T15:48:59Z Zooplankton in Kongsfjorden, Svalbard, is shaped by irregular advection of seawater from the West Spitsbergen Current as well as input of freshwater of glacial and riverine origin. The zooplankton community reflects contributions of Arctic vs. Atlantic water masses in the fjord, and is changing with increasing temperature and declining sea ice. Here, we review zooplankton studies from Kongsfjorden, and present new data from a 20-year time series (1996–2016) of zooplankton abundance/biomass in the fjord based on annual surveys during summer. During the last decade, the marine environment of the West Spitsbergen Shelf and adjacent fjords has undergone changes with increasing temperatures and volume of inflowing Atlantic Water and declining sea ice. Annual monitoring of mesozooplankton since 1996 has shown high seasonal, spatial, and inter-annual variation in species abundance and biomass, and in the proportion of Atlantic and Arctic species. Inter-annual variations in species composition and abundance demonstrate fluctuating patterns related to changes in hydrography. “Warm years” in Kongsfjorden were characterized by higher abundances of Atlantic species, such as Calanus finmarchicus, Oithona atlantica, Thysanoessa longicaudata and Themisto abyssorum. Other krill species, particularly Thysanoessa inermis and to a lesser extent T. longicaudata, increased in abundance during the warming period in 2006–2007, mainly in the inner basin. “Cold years”, on the other hand, were characterized by higher abundance of Themisto libellula. There was no clear impact, however, of changes in environmental factors on the abundance or biomass of the Arctic species Calanus glacialis suggesting that the changes in environmental conditions have not reached critical levels for this species. The long-term zooplankton data demonstrate that some Atlantic species have become more abundant in the Kongsfjorden’s pelagic realm, suggesting that they may benefit from increasing temperature, and also that the total biomass of zooplankton has ... Book Part Arctic Calanus finmarchicus Calanus glacialis Climate change Kongsfjord* Kongsfjorden Sea ice Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Spitsbergen Thysanoessa inermis OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Svalbard 229 300 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Zooplankton in Kongsfjorden, Svalbard, is shaped by irregular advection of seawater from the West Spitsbergen Current as well as input of freshwater of glacial and riverine origin. The zooplankton community reflects contributions of Arctic vs. Atlantic water masses in the fjord, and is changing with increasing temperature and declining sea ice. Here, we review zooplankton studies from Kongsfjorden, and present new data from a 20-year time series (1996–2016) of zooplankton abundance/biomass in the fjord based on annual surveys during summer. During the last decade, the marine environment of the West Spitsbergen Shelf and adjacent fjords has undergone changes with increasing temperatures and volume of inflowing Atlantic Water and declining sea ice. Annual monitoring of mesozooplankton since 1996 has shown high seasonal, spatial, and inter-annual variation in species abundance and biomass, and in the proportion of Atlantic and Arctic species. Inter-annual variations in species composition and abundance demonstrate fluctuating patterns related to changes in hydrography. “Warm years” in Kongsfjorden were characterized by higher abundances of Atlantic species, such as Calanus finmarchicus, Oithona atlantica, Thysanoessa longicaudata and Themisto abyssorum. Other krill species, particularly Thysanoessa inermis and to a lesser extent T. longicaudata, increased in abundance during the warming period in 2006–2007, mainly in the inner basin. “Cold years”, on the other hand, were characterized by higher abundance of Themisto libellula. There was no clear impact, however, of changes in environmental factors on the abundance or biomass of the Arctic species Calanus glacialis suggesting that the changes in environmental conditions have not reached critical levels for this species. The long-term zooplankton data demonstrate that some Atlantic species have become more abundant in the Kongsfjorden’s pelagic realm, suggesting that they may benefit from increasing temperature, and also that the total biomass of zooplankton has ... |
format |
Book Part |
author |
Hop, Haakon Wold, Anette Vihtakari, Mikko Daase, Malin Kwasniewski, Slawomir Gluchowska, Marta Lischka, Silke Buchholz, Friedrich Falk-Petersen, Stig |
spellingShingle |
Hop, Haakon Wold, Anette Vihtakari, Mikko Daase, Malin Kwasniewski, Slawomir Gluchowska, Marta Lischka, Silke Buchholz, Friedrich Falk-Petersen, Stig Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
author_facet |
Hop, Haakon Wold, Anette Vihtakari, Mikko Daase, Malin Kwasniewski, Slawomir Gluchowska, Marta Lischka, Silke Buchholz, Friedrich Falk-Petersen, Stig |
author_sort |
Hop, Haakon |
title |
Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
title_short |
Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
title_full |
Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
title_fullStr |
Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
title_full_unstemmed |
Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change |
title_sort |
zooplankton in kongsfjorden (1996–2016) in relation to climate change |
publisher |
Nature Research |
publishDate |
2019 |
url |
https://oceanrep.geomar.de/id/eprint/48727/ https://oceanrep.geomar.de/id/eprint/48727/1/2019_Book_TheEcosystemOfKongsfjordenSval.pdf https://doi.org/10.1007/978-3-319-46425-1_7 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Calanus finmarchicus Calanus glacialis Climate change Kongsfjord* Kongsfjorden Sea ice Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Spitsbergen Thysanoessa inermis |
genre_facet |
Arctic Calanus finmarchicus Calanus glacialis Climate change Kongsfjord* Kongsfjorden Sea ice Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Spitsbergen Thysanoessa inermis |
op_relation |
https://oceanrep.geomar.de/id/eprint/48727/1/2019_Book_TheEcosystemOfKongsfjordenSval.pdf Hop, H., Wold, A., Vihtakari, M., Daase, M., Kwasniewski, S., Gluchowska, M., Lischka, S. , Buchholz, F. and Falk-Petersen, S. (2019) Zooplankton in Kongsfjorden (1996–2016) in Relation to Climate Change. In: The Ecosystem of Kongsfjorden, Svalbard. 2 . Nature Research, Cham, Switzerland, pp. 229-300. ISBN 978-3-319-46423-7 DOI 10.1007/978-3-319-46425-1_7 <https://doi.org/10.1007/978-3-319-46425-1_7>. doi:10.1007/978-3-319-46425-1_7 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/978-3-319-46425-1_7 |
container_start_page |
229 |
op_container_end_page |
300 |
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1766327860296941568 |