On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability
Analysis of data obtained by the Institute of Marine Research, Norway, at their regular surveys of the Fugløya-Bjørnøya section, between the northern tip of Norway and Bear Island, has allowed for an identification of the factors that control spring bloom development in the region, and their interan...
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Language: | English |
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Taylor & Francis
2003
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Online Access: | https://hdl.handle.net/1956/415 https://doi.org/10.1080/00364820310003145 |
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ftunivbergen:oai:bora.uib.no:1956/415 2023-05-15T15:38:46+02:00 On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability Olsen, Are Johannessen, Truls Rey, Francisco 2003-12 137 bytes 379513 bytes text/plain application/pdf https://hdl.handle.net/1956/415 https://doi.org/10.1080/00364820310003145 eng eng Taylor & Francis urn:issn:0036-4827 urn:issn:1503-1128 https://hdl.handle.net/1956/415 https://doi.org/10.1080/00364820310003145 Journal article 2003 ftunivbergen https://doi.org/10.1080/00364820310003145 2023-03-14T17:44:59Z Analysis of data obtained by the Institute of Marine Research, Norway, at their regular surveys of the Fugløya-Bjørnøya section, between the northern tip of Norway and Bear Island, has allowed for an identification of the factors that control spring bloom development in the region, and their interannual variability. In the southern part of the section the bloom starts as the waters become stratified due to a northward spreading of low salinity water from the Norwegian Coastal Current. In the middle part of the section the bloom is initiated when vernal stratification develops due to heating of the ocean surface, and the bloom may develop in either of two directions throughout summer, depending on the prevailing atmospheric pressure gradient over the region. A north to south high to low pressure gradient will direct surface winds to the west. Ekman drift will then be to the north and a wedge of low salinity, low nutrient water will spread out over the region, leading to the termination of the bloom. When the pressure gradient is reversed, winds will blow to the east and intrusion of fresh water into the region will be limited. In these years the bloom appears to follow a classical Atlantic pattern, unable to fully utilize available nitrate and probably terminated due to extensive grazing. The central part of the Barents Sea Opening is thus yet another northern high latitude region where the bloom is subject to substantial interannual variations, potentially affecting higher trophic levels. Article in Journal/Newspaper Barents Sea Bear Island Bjørnøya Fugløy* University of Bergen: Bergen Open Research Archive (BORA-UiB) Barents Sea Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Bjørnøya ENVELOPE(-67.250,-67.250,-68.151,-68.151) Fugløya ENVELOPE(7.767,7.767,63.095,63.095) Norway Sarsia 88 6 379 393 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
Analysis of data obtained by the Institute of Marine Research, Norway, at their regular surveys of the Fugløya-Bjørnøya section, between the northern tip of Norway and Bear Island, has allowed for an identification of the factors that control spring bloom development in the region, and their interannual variability. In the southern part of the section the bloom starts as the waters become stratified due to a northward spreading of low salinity water from the Norwegian Coastal Current. In the middle part of the section the bloom is initiated when vernal stratification develops due to heating of the ocean surface, and the bloom may develop in either of two directions throughout summer, depending on the prevailing atmospheric pressure gradient over the region. A north to south high to low pressure gradient will direct surface winds to the west. Ekman drift will then be to the north and a wedge of low salinity, low nutrient water will spread out over the region, leading to the termination of the bloom. When the pressure gradient is reversed, winds will blow to the east and intrusion of fresh water into the region will be limited. In these years the bloom appears to follow a classical Atlantic pattern, unable to fully utilize available nitrate and probably terminated due to extensive grazing. The central part of the Barents Sea Opening is thus yet another northern high latitude region where the bloom is subject to substantial interannual variations, potentially affecting higher trophic levels. |
format |
Article in Journal/Newspaper |
author |
Olsen, Are Johannessen, Truls Rey, Francisco |
spellingShingle |
Olsen, Are Johannessen, Truls Rey, Francisco On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
author_facet |
Olsen, Are Johannessen, Truls Rey, Francisco |
author_sort |
Olsen, Are |
title |
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
title_short |
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
title_full |
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
title_fullStr |
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
title_full_unstemmed |
On the nature of the factors that control spring bloom development at the entrance to the Barents Sea and their interannual variability |
title_sort |
on the nature of the factors that control spring bloom development at the entrance to the barents sea and their interannual variability |
publisher |
Taylor & Francis |
publishDate |
2003 |
url |
https://hdl.handle.net/1956/415 https://doi.org/10.1080/00364820310003145 |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(7.767,7.767,63.095,63.095) |
geographic |
Barents Sea Bear Island Bjørnøya Fugløya Norway |
geographic_facet |
Barents Sea Bear Island Bjørnøya Fugløya Norway |
genre |
Barents Sea Bear Island Bjørnøya Fugløy* |
genre_facet |
Barents Sea Bear Island Bjørnøya Fugløy* |
op_relation |
urn:issn:0036-4827 urn:issn:1503-1128 https://hdl.handle.net/1956/415 https://doi.org/10.1080/00364820310003145 |
op_doi |
https://doi.org/10.1080/00364820310003145 |
container_title |
Sarsia |
container_volume |
88 |
container_issue |
6 |
container_start_page |
379 |
op_container_end_page |
393 |
_version_ |
1766370088691171328 |