Title: Spatiotemporal variability of inorganic nitrogen stocks and uptake fluxes in the scotia-weddell confluence area during november and december 1988
Authors: Goeyens, Leo ×
Sorensson, F
Treguer, P
Morvan, J
Panouse, M
Dehairs, F #
Issue Date: 1991
Publisher: Inter-research
Series Title: Marine ecology-progress series vol:77 issue:1 pages:7-19
Abstract: 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.
ISSN: 0171-8630
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Food and Microbial Technology
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science