Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988
Distributions of nitrate and ammonium and corresponding uptake fluxes were investigated in the Scotia-Weddell Confluence area during EPOS LEG 2 (November and December 1988) on board RV 'Polarstern'. In this area a central low-salinity and low-nitrate compartment extends southward from the...
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ftunivleuven:oai:lirias.kuleuven.be:123456789/45368 2023-05-15T18:07:33+02:00 Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 Goeyens, Leo Sorensson, F Treguer, P Morvan, J Panouse, M Dehairs, F 1991 https://lirias.kuleuven.be/handle/123456789/45368 en eng Inter-research Marine ecology-progress series vol:77 issue:1 pages:7-19 https://lirias.kuleuven.be/handle/123456789/45368 0171-8630 phytoplankton bloom dynamics primary nitrite maximum sea ice edge southern-ocean ross sea primary productivity nitrification rates surface waters austral summer indian sector Description (Metadata) only IT article 1991 ftunivleuven 2015-12-22T15:04:41Z Distributions of nitrate and ammonium and corresponding uptake fluxes were investigated in the Scotia-Weddell Confluence area during EPOS LEG 2 (November and December 1988) on board RV 'Polarstern'. In this area a central low-salinity and low-nitrate compartment extends southward from the Scotia Front over 1 to 1.5-degrees-latitude. High ammonium concentrations and marked nitrate depletions indicate an enhanced biological activity in this part of the ocean. By means of the uptake rates, obtained from N-15 incubations, and of nitrate depletion data it is proved that this marginal ice zone ecosystem shifts from predominantly new production based (highest f-ratio 0.83) to regenerated production based (lowest f-ratio 0.30) after some 3 wk. This transition corresponds with the change from a higher diatom presence to a higher flagellate presence in the phytoplankton community. Moreover, it is in agreement with the described sudden termination of export fluxes in the Weddell Sea. status: published Article in Journal/Newspaper Ross Sea Sea ice Southern Ocean Weddell Sea KU Leuven: Lirias Austral Indian Ross Sea Southern Ocean Weddell Weddell Sea |
institution |
Open Polar |
collection |
KU Leuven: Lirias |
op_collection_id |
ftunivleuven |
language |
English |
topic |
phytoplankton bloom dynamics primary nitrite maximum sea ice edge southern-ocean ross sea primary productivity nitrification rates surface waters austral summer indian sector |
spellingShingle |
phytoplankton bloom dynamics primary nitrite maximum sea ice edge southern-ocean ross sea primary productivity nitrification rates surface waters austral summer indian sector Goeyens, Leo Sorensson, F Treguer, P Morvan, J Panouse, M Dehairs, F Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
topic_facet |
phytoplankton bloom dynamics primary nitrite maximum sea ice edge southern-ocean ross sea primary productivity nitrification rates surface waters austral summer indian sector |
description |
Distributions of nitrate and ammonium and corresponding uptake fluxes were investigated in the Scotia-Weddell Confluence area during EPOS LEG 2 (November and December 1988) on board RV 'Polarstern'. In this area a central low-salinity and low-nitrate compartment extends southward from the Scotia Front over 1 to 1.5-degrees-latitude. High ammonium concentrations and marked nitrate depletions indicate an enhanced biological activity in this part of the ocean. By means of the uptake rates, obtained from N-15 incubations, and of nitrate depletion data it is proved that this marginal ice zone ecosystem shifts from predominantly new production based (highest f-ratio 0.83) to regenerated production based (lowest f-ratio 0.30) after some 3 wk. This transition corresponds with the change from a higher diatom presence to a higher flagellate presence in the phytoplankton community. Moreover, it is in agreement with the described sudden termination of export fluxes in the Weddell Sea. status: published |
format |
Article in Journal/Newspaper |
author |
Goeyens, Leo Sorensson, F Treguer, P Morvan, J Panouse, M Dehairs, F |
author_facet |
Goeyens, Leo Sorensson, F Treguer, P Morvan, J Panouse, M Dehairs, F |
author_sort |
Goeyens, Leo |
title |
Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
title_short |
Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
title_full |
Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
title_fullStr |
Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
title_full_unstemmed |
Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
title_sort |
spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988 |
publisher |
Inter-research |
publishDate |
1991 |
url |
https://lirias.kuleuven.be/handle/123456789/45368 |
geographic |
Austral Indian Ross Sea Southern Ocean Weddell Weddell Sea |
geographic_facet |
Austral Indian Ross Sea Southern Ocean Weddell Weddell Sea |
genre |
Ross Sea Sea ice Southern Ocean Weddell Sea |
genre_facet |
Ross Sea Sea ice Southern Ocean Weddell Sea |
op_relation |
Marine ecology-progress series vol:77 issue:1 pages:7-19 https://lirias.kuleuven.be/handle/123456789/45368 0171-8630 |
_version_ |
1766179761668751360 |