Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard
Phytoplankton dynamics and carbon input into Arctic and sub-Arctic ecosystems were investigated around Svalbard, in summer 1991. Phytoplankton biomass, species composition and dissolved nutrient concentrations were analysed from water samples collected along seven transects. Phytoplankton biomass wa...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2198 2023-05-15T14:58:44+02:00 Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard Owrid, Georgina Socal, Giorgio Civitarese, Giuseppe Luchetta, Anna Wiktor, Jozef Nöthig, Eva-Maria Andreassen, Inger Schauer, Ursula Strass, Volker 2000-01-12 application/pdf https://polarresearch.net/index.php/polar/article/view/2198 https://doi.org/10.3402/polar.v19i2.6542 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2198/5449 https://polarresearch.net/index.php/polar/article/view/2198 doi:10.3402/polar.v19i2.6542 Copyright (c) 2018 Polar Research Polar Research; Vol. 19 No. 2 (2000); 155-171 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2000 ftjpolarres https://doi.org/10.3402/polar.v19i2.6542 2021-11-11T19:12:09Z Phytoplankton dynamics and carbon input into Arctic and sub-Arctic ecosystems were investigated around Svalbard, in summer 1991. Phytoplankton biomass, species composition and dissolved nutrient concentrations were analysed from water samples collected along seven transects. Phytoplankton biomass was low especially to the north (Chlorophyll-a mean 0.3 pg 1- '), where flagellates dominated the communities and only ice-diatoms were present. To the west, the phytoplankton composition was representative of a summer Atlantic community, in a post-bloom state. Zooplankton grazing, mainly by copepods, appeared to be the main control on biomass to the west and north of Svalbard. In the Barents Sea (east of Svalbard), an ice edge bloom was observed (Chlorophyll-a max. 6.8 pgl-') and the ice edge receded at a rate of approximately 1 1 km day-'. The phytoplankton community was represented by marginal ice species, especially Phaeocystis poucherii and Chaeroceros socialis. South of the ice edge, Deep Chlorophyll Maxima (DCM) were observed, as surface waters became progressively nutrient-depleted. In these surface waters, the phytoplankton were predominantly auto- and heterotrophic flagellates. Carbon production measurements revealed high net production (new and regenerated) to the north of the Barents Sea Polar Front (BSFW); it was especially high at the receding ice edge (reaching 1.44gC m-'day-'). To the south, a low level of production was maintained, mainly through regenerative processes. Article in Journal/Newspaper Arctic Barents Sea Phytoplankton Polar Research Svalbard Zooplankton Copepods Polar Research (E-Journal) Arctic Svalbard Barents Sea Polar Research 19 2 155 171 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
Phytoplankton dynamics and carbon input into Arctic and sub-Arctic ecosystems were investigated around Svalbard, in summer 1991. Phytoplankton biomass, species composition and dissolved nutrient concentrations were analysed from water samples collected along seven transects. Phytoplankton biomass was low especially to the north (Chlorophyll-a mean 0.3 pg 1- '), where flagellates dominated the communities and only ice-diatoms were present. To the west, the phytoplankton composition was representative of a summer Atlantic community, in a post-bloom state. Zooplankton grazing, mainly by copepods, appeared to be the main control on biomass to the west and north of Svalbard. In the Barents Sea (east of Svalbard), an ice edge bloom was observed (Chlorophyll-a max. 6.8 pgl-') and the ice edge receded at a rate of approximately 1 1 km day-'. The phytoplankton community was represented by marginal ice species, especially Phaeocystis poucherii and Chaeroceros socialis. South of the ice edge, Deep Chlorophyll Maxima (DCM) were observed, as surface waters became progressively nutrient-depleted. In these surface waters, the phytoplankton were predominantly auto- and heterotrophic flagellates. Carbon production measurements revealed high net production (new and regenerated) to the north of the Barents Sea Polar Front (BSFW); it was especially high at the receding ice edge (reaching 1.44gC m-'day-'). To the south, a low level of production was maintained, mainly through regenerative processes. |
format |
Article in Journal/Newspaper |
author |
Owrid, Georgina Socal, Giorgio Civitarese, Giuseppe Luchetta, Anna Wiktor, Jozef Nöthig, Eva-Maria Andreassen, Inger Schauer, Ursula Strass, Volker |
spellingShingle |
Owrid, Georgina Socal, Giorgio Civitarese, Giuseppe Luchetta, Anna Wiktor, Jozef Nöthig, Eva-Maria Andreassen, Inger Schauer, Ursula Strass, Volker Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
author_facet |
Owrid, Georgina Socal, Giorgio Civitarese, Giuseppe Luchetta, Anna Wiktor, Jozef Nöthig, Eva-Maria Andreassen, Inger Schauer, Ursula Strass, Volker |
author_sort |
Owrid, Georgina |
title |
Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
title_short |
Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
title_full |
Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
title_fullStr |
Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
title_full_unstemmed |
Spatial variability of phytoplankton, nutrients and new production estimates in the waters around Svalbard |
title_sort |
spatial variability of phytoplankton, nutrients and new production estimates in the waters around svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2000 |
url |
https://polarresearch.net/index.php/polar/article/view/2198 https://doi.org/10.3402/polar.v19i2.6542 |
geographic |
Arctic Svalbard Barents Sea |
geographic_facet |
Arctic Svalbard Barents Sea |
genre |
Arctic Barents Sea Phytoplankton Polar Research Svalbard Zooplankton Copepods |
genre_facet |
Arctic Barents Sea Phytoplankton Polar Research Svalbard Zooplankton Copepods |
op_source |
Polar Research; Vol. 19 No. 2 (2000); 155-171 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2198/5449 https://polarresearch.net/index.php/polar/article/view/2198 doi:10.3402/polar.v19i2.6542 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v19i2.6542 |
container_title |
Polar Research |
container_volume |
19 |
container_issue |
2 |
container_start_page |
155 |
op_container_end_page |
171 |
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1766330866632491008 |