Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014)
The northern coast of Svalbard contains high-arctic fjords, such as Rijpfjorden (80°N 22°30′E). This area has experienced higher sea and air temperatures and less sea ice in recent years, and models predict increasing temperatures in this region. Part of the West Spitsbergen Current (WSC), which tra...
Published in: | Frontiers in Marine Science |
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2019
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Online Access: | https://doi.org/10.3389/fmars.2019.00181 https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f |
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ftdoajarticles:oai:doaj.org/article:f4c9f6ffc0864bc9a7c7e6915fa4f56f 2023-05-15T14:51:13+02:00 Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) Haakon Hop Philipp Assmy Anette Wold Arild Sundfjord Malin Daase Pedro Duarte Slawomir Kwasniewski Marta Gluchowska Józef M. Wiktor Agnieszka Tatarek Józef Wiktor Svein Kristiansen Agneta Fransson Melissa Chierici Mikko Vihtakari 2019-04-01T00:00:00Z https://doi.org/10.3389/fmars.2019.00181 https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmars.2019.00181/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2019.00181 https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f Frontiers in Marine Science, Vol 6 (2019) Arctic ecosystem carbonate system nutrient limitation protists zooplankton climate change Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2019 ftdoajarticles https://doi.org/10.3389/fmars.2019.00181 2022-12-31T10:16:29Z The northern coast of Svalbard contains high-arctic fjords, such as Rijpfjorden (80°N 22°30′E). This area has experienced higher sea and air temperatures and less sea ice in recent years, and models predict increasing temperatures in this region. Part of the West Spitsbergen Current (WSC), which transports relatively warm Atlantic water along the continental slope west of Svalbard, bypasses these fjords on its route in the Arctic Ocean. In this setting, it is of interest to study the structure of water masses and plankton in the Atlantic Water Boundary Current. This study describes physical and biological conditions during summer (July–August, 2010–2014) from Rijpfjorden across the shelf and continental slope to the Arctic Ocean. Atlantic water (AW) resides over the upper continental slope and occasionally protrudes onto the shelf area. The interplay between the intrusion of AW and meltwater affected the chemical balance of the region by making the carbonate chemistry variable depending on season, depth and distance along the gradient. The pH (aragonite saturation) varied from 7.96 (0.99) to 8.58 (2.92). Highest values were observed in surface waters due to biological CO2 uptake, except in 2013, when meltwater decreased aragonite saturation to <1 in surface waters on the shelf. All years were characterized by post-bloom situations with very low nutrient concentrations in Polar Surface Water and subsurface chlorophyll a maxima. In such circumstances, phytoplankton optimized growth near the limit of the euphotic depth, where the algae still had access to nutrients. In terms of biomass, the protist community was dominated by nanoplankton (2–20 μm), in particular dinoflagellates and ciliates. The prymnesiophyte Phaeocystis pouchetii and diatoms often prevailed at subsurface depths associated with the chlorophyll a maximum. The boreal Calanus finmarchicus and Oithona similis dominated AW over the slope and outer shelf, whereas Calanus glacialis and neritic zooplankton (Pseudocalanus, Parasagitta elegans, and ... Article in Journal/Newspaper Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis Climate change Phytoplankton Rijpfjord* Sea ice Svalbard Zooplankton Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Rijpfjorden ENVELOPE(22.188,22.188,80.165,80.165) Svalbard Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic ecosystem carbonate system nutrient limitation protists zooplankton climate change Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Arctic ecosystem carbonate system nutrient limitation protists zooplankton climate change Science Q General. Including nature conservation geographical distribution QH1-199.5 Haakon Hop Philipp Assmy Anette Wold Arild Sundfjord Malin Daase Pedro Duarte Slawomir Kwasniewski Marta Gluchowska Józef M. Wiktor Agnieszka Tatarek Józef Wiktor Svein Kristiansen Agneta Fransson Melissa Chierici Mikko Vihtakari Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
topic_facet |
Arctic ecosystem carbonate system nutrient limitation protists zooplankton climate change Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The northern coast of Svalbard contains high-arctic fjords, such as Rijpfjorden (80°N 22°30′E). This area has experienced higher sea and air temperatures and less sea ice in recent years, and models predict increasing temperatures in this region. Part of the West Spitsbergen Current (WSC), which transports relatively warm Atlantic water along the continental slope west of Svalbard, bypasses these fjords on its route in the Arctic Ocean. In this setting, it is of interest to study the structure of water masses and plankton in the Atlantic Water Boundary Current. This study describes physical and biological conditions during summer (July–August, 2010–2014) from Rijpfjorden across the shelf and continental slope to the Arctic Ocean. Atlantic water (AW) resides over the upper continental slope and occasionally protrudes onto the shelf area. The interplay between the intrusion of AW and meltwater affected the chemical balance of the region by making the carbonate chemistry variable depending on season, depth and distance along the gradient. The pH (aragonite saturation) varied from 7.96 (0.99) to 8.58 (2.92). Highest values were observed in surface waters due to biological CO2 uptake, except in 2013, when meltwater decreased aragonite saturation to <1 in surface waters on the shelf. All years were characterized by post-bloom situations with very low nutrient concentrations in Polar Surface Water and subsurface chlorophyll a maxima. In such circumstances, phytoplankton optimized growth near the limit of the euphotic depth, where the algae still had access to nutrients. In terms of biomass, the protist community was dominated by nanoplankton (2–20 μm), in particular dinoflagellates and ciliates. The prymnesiophyte Phaeocystis pouchetii and diatoms often prevailed at subsurface depths associated with the chlorophyll a maximum. The boreal Calanus finmarchicus and Oithona similis dominated AW over the slope and outer shelf, whereas Calanus glacialis and neritic zooplankton (Pseudocalanus, Parasagitta elegans, and ... |
format |
Article in Journal/Newspaper |
author |
Haakon Hop Philipp Assmy Anette Wold Arild Sundfjord Malin Daase Pedro Duarte Slawomir Kwasniewski Marta Gluchowska Józef M. Wiktor Agnieszka Tatarek Józef Wiktor Svein Kristiansen Agneta Fransson Melissa Chierici Mikko Vihtakari |
author_facet |
Haakon Hop Philipp Assmy Anette Wold Arild Sundfjord Malin Daase Pedro Duarte Slawomir Kwasniewski Marta Gluchowska Józef M. Wiktor Agnieszka Tatarek Józef Wiktor Svein Kristiansen Agneta Fransson Melissa Chierici Mikko Vihtakari |
author_sort |
Haakon Hop |
title |
Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
title_short |
Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
title_full |
Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
title_fullStr |
Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
title_full_unstemmed |
Pelagic Ecosystem Characteristics Across the Atlantic Water Boundary Current From Rijpfjorden, Svalbard, to the Arctic Ocean During Summer (2010–2014) |
title_sort |
pelagic ecosystem characteristics across the atlantic water boundary current from rijpfjorden, svalbard, to the arctic ocean during summer (2010–2014) |
publisher |
Frontiers Media S.A. |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2019.00181 https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f |
long_lat |
ENVELOPE(22.188,22.188,80.165,80.165) |
geographic |
Arctic Arctic Ocean Rijpfjorden Svalbard |
geographic_facet |
Arctic Arctic Ocean Rijpfjorden Svalbard |
genre |
Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis Climate change Phytoplankton Rijpfjord* Sea ice Svalbard Zooplankton Spitsbergen |
genre_facet |
Arctic Arctic Ocean Calanus finmarchicus Calanus glacialis Climate change Phytoplankton Rijpfjord* Sea ice Svalbard Zooplankton Spitsbergen |
op_source |
Frontiers in Marine Science, Vol 6 (2019) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2019.00181/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2019.00181 https://doaj.org/article/f4c9f6ffc0864bc9a7c7e6915fa4f56f |
op_doi |
https://doi.org/10.3389/fmars.2019.00181 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
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1766322267386544128 |