Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen
Phytoplankton biomass and composition was investigated in a high Arctic fjord (Kongsfjorden, 79◦N, 11◦40′E) using year round weekly pigment samples collected from October 2013 to December 2014. In addition, phytoplankton dynamics supplemented with physical and chemical characteristics of the 2014 sp...
Published in: | Frontiers in Marine Science |
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ftawi:oai:epic.awi.de:41915 2024-09-15T18:17:03+00:00 Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen van De Poll, Willem H. Maat, Douwe S. Fischer, Philipp Rozema, Patrick D. Daly, Oonagh B. Koppelle, Sebastiaan Visser, Ronald J. W. Buma, Anita G. J. 2016 application/pdf https://epic.awi.de/id/eprint/41915/ https://epic.awi.de/id/eprint/41915/1/Frontiers_Marine_Science.pdf https://doi.org/10.3389/fmars.2016.00200 https://hdl.handle.net/10013/epic.48739 https://hdl.handle.net/10013/epic.48739.d001 unknown https://epic.awi.de/id/eprint/41915/1/Frontiers_Marine_Science.pdf https://hdl.handle.net/10013/epic.48739.d001 van De Poll, W. H. , Maat, D. S. , Fischer, P. orcid:0000-0002-3357-5420 , Rozema, P. D. , Daly, O. B. , Koppelle, S. , Visser, R. J. W. and Buma, A. G. J. (2016) Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen , Frontiers in Marine Science, 3 . doi:10.3389/fmars.2016.00200 <https://doi.org/10.3389/fmars.2016.00200> , hdl:10013/epic.48739 EPIC3Frontiers in Marine Science, 3, ISSN: 2296-7745 Article isiRev 2016 ftawi https://doi.org/10.3389/fmars.2016.00200 2024-06-24T04:15:36Z Phytoplankton biomass and composition was investigated in a high Arctic fjord (Kongsfjorden, 79◦N, 11◦40′E) using year round weekly pigment samples collected from October 2013 to December 2014. In addition, phytoplankton dynamics supplemented with physical and chemical characteristics of the 2014 spring bloom (April–June 2014) were assessed in two locations in Kongsfjorden. The goal was to elucidate effects of Atlantic advection on spatial phytoplankton chlorophyll-a (chl-a) and taxonomic composition. Chl-a declined during the polar night to a minimum of 0.01mg m−3, followed by a 1000-fold increase until May 28. Atlantic advection prevented sea ice formation and increased springtime melting of marine terminating glaciers. This coincided with spatial and temporal differences in abundances of flagellates (prasinophytes, haptophytes, cryptophytes, and chrysophytes) and diatoms in early spring. More flagellated phytoplankton were observed in the non-stratified central Kongsfjorden, whereas diatoms were more abundant in the stratified inner fjord. Contrasting conditions between locations were reduced when glacial melt water stratification expanded toward the mouth of the fjord, mediating a diatom dominated surface bloom at both locations. We suggest that glacial melt water governs spring bloom spatial timing and composition in the absence of sea ice driven stratification. The spring bloom exhausted surface nutrient concentrations by the end of May. The nutrient limited post bloom period (June–October) was characterized by reduced biomass and pigments of flagellated phytoplankton, consisting of prasinophytes, haptophytes, chrysophytes, and to a lesser extent cryptophytes and peridinin-containing dinoflagellates. Article in Journal/Newspaper Kongsfjord* Kongsfjorden Phytoplankton polar night Sea ice Spitsbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Frontiers in Marine Science 3 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Phytoplankton biomass and composition was investigated in a high Arctic fjord (Kongsfjorden, 79◦N, 11◦40′E) using year round weekly pigment samples collected from October 2013 to December 2014. In addition, phytoplankton dynamics supplemented with physical and chemical characteristics of the 2014 spring bloom (April–June 2014) were assessed in two locations in Kongsfjorden. The goal was to elucidate effects of Atlantic advection on spatial phytoplankton chlorophyll-a (chl-a) and taxonomic composition. Chl-a declined during the polar night to a minimum of 0.01mg m−3, followed by a 1000-fold increase until May 28. Atlantic advection prevented sea ice formation and increased springtime melting of marine terminating glaciers. This coincided with spatial and temporal differences in abundances of flagellates (prasinophytes, haptophytes, cryptophytes, and chrysophytes) and diatoms in early spring. More flagellated phytoplankton were observed in the non-stratified central Kongsfjorden, whereas diatoms were more abundant in the stratified inner fjord. Contrasting conditions between locations were reduced when glacial melt water stratification expanded toward the mouth of the fjord, mediating a diatom dominated surface bloom at both locations. We suggest that glacial melt water governs spring bloom spatial timing and composition in the absence of sea ice driven stratification. The spring bloom exhausted surface nutrient concentrations by the end of May. The nutrient limited post bloom period (June–October) was characterized by reduced biomass and pigments of flagellated phytoplankton, consisting of prasinophytes, haptophytes, chrysophytes, and to a lesser extent cryptophytes and peridinin-containing dinoflagellates. |
format |
Article in Journal/Newspaper |
author |
van De Poll, Willem H. Maat, Douwe S. Fischer, Philipp Rozema, Patrick D. Daly, Oonagh B. Koppelle, Sebastiaan Visser, Ronald J. W. Buma, Anita G. J. |
spellingShingle |
van De Poll, Willem H. Maat, Douwe S. Fischer, Philipp Rozema, Patrick D. Daly, Oonagh B. Koppelle, Sebastiaan Visser, Ronald J. W. Buma, Anita G. J. Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
author_facet |
van De Poll, Willem H. Maat, Douwe S. Fischer, Philipp Rozema, Patrick D. Daly, Oonagh B. Koppelle, Sebastiaan Visser, Ronald J. W. Buma, Anita G. J. |
author_sort |
van De Poll, Willem H. |
title |
Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
title_short |
Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
title_full |
Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
title_fullStr |
Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
title_full_unstemmed |
Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen |
title_sort |
atlantic advection driven changes in glacial meltwater: effects on phytoplankton chlorophyll-a and taxonomic composition in kongsfjorden, spitsbergen |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41915/ https://epic.awi.de/id/eprint/41915/1/Frontiers_Marine_Science.pdf https://doi.org/10.3389/fmars.2016.00200 https://hdl.handle.net/10013/epic.48739 https://hdl.handle.net/10013/epic.48739.d001 |
genre |
Kongsfjord* Kongsfjorden Phytoplankton polar night Sea ice Spitsbergen |
genre_facet |
Kongsfjord* Kongsfjorden Phytoplankton polar night Sea ice Spitsbergen |
op_source |
EPIC3Frontiers in Marine Science, 3, ISSN: 2296-7745 |
op_relation |
https://epic.awi.de/id/eprint/41915/1/Frontiers_Marine_Science.pdf https://hdl.handle.net/10013/epic.48739.d001 van De Poll, W. H. , Maat, D. S. , Fischer, P. orcid:0000-0002-3357-5420 , Rozema, P. D. , Daly, O. B. , Koppelle, S. , Visser, R. J. W. and Buma, A. G. J. (2016) Atlantic Advection Driven Changes in Glacial Meltwater: Effects on Phytoplankton Chlorophyll-a and Taxonomic Composition in Kongsfjorden, Spitsbergen , Frontiers in Marine Science, 3 . doi:10.3389/fmars.2016.00200 <https://doi.org/10.3389/fmars.2016.00200> , hdl:10013/epic.48739 |
op_doi |
https://doi.org/10.3389/fmars.2016.00200 |
container_title |
Frontiers in Marine Science |
container_volume |
3 |
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1810455033514295296 |