Consulta: creatorFacets:"Lancelot, C."
Registros recuperados: 3
Data/hora: 17/06/2024 07:42:11

d&lt;sup&gt;13&lt;/sup&gt;C of Southern Ocean suspended organic matter during spring and early summer: Regional and temporal variability
Provedor de dados: 27
Autores: Dehairs, F.A.; Kopczynska, E.; Nielsen, C.; Lancelot, C.; Bakker, D.; Koeve, W.; Goeyens, L.
Observations are presented for stable carbon isotope abundance (&amp;#x3b4;&lt;sup&gt;13&lt;/sup&gt;C) and organic carbon and nitrogen content of suspended organic matter from the Southern Ocean (Circumpolar Current and Polar Front) during spring and early summer. The Polar Front Zone was characterized by elevated plankton biomasses and phytoplankton activity, which also increased significantly over the one-month investigation period. From the beginning of the phytoplankton bloom &amp;#x3b4;&lt;sup&gt;13&lt;/sup&gt;C values of suspended organic matter in the Polar Front were high, exceeding values predicted from the relationship with CO&lt;sub&gt;2(aq)&lt;/sub&gt; concentration observed in other areas of the Southern Ocean. Later in the season...
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10202

Nitrogen uptake regime and phytoplankton community structure in the Atlantic and Indian sectors of the Southern Ocean
Provedor de dados: 27
Autores: Semeneh, M.; Dehairs, F.A.; Elskens, M.; Baumann, M.E.M.; Kopczynska, E.E.; Lancelot, C.; Goeyens, L.
Phytoplankton nitrogen uptake is studied in relation to the biomass and structure of phytoplankton community in the Atlantic and Indian sectors of the Southern Ocean. Two scenarios of seasonal evolution of uptake regime and phytoplankton community structure are described. The first scenario includes the Marginal Ice Zone areas of the Weddell Sea and adjacent areas where a predominantly nitrate based, diatom dominated assemblage, thriving in a stable water column at the beginning of the season was transformed into a mainly ammonium based, flagellate dominated assemblage, towards the end of the season. The change in phytoplankton community structure was caused by selective grazing by large grazers and reduced stability of the water column and the shift in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeochemical cycle Biomass Community composition Continental shelves Ice edge Nitrogen Pelagic environment Phytoplankton Size distribution Uptake PS; Southern Ocean PSE; Antarctic Ocean.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10255

Ammonium regeneration in the Scotia-Weddell Confluence area during spring 1988
Provedor de dados: 27
Autores: Goeyens, L.; Tréguer, P.; Lancelot, C.; Mathot, S.; Becquevort, S.; Morvan, J.; Dehairs, F.A.; Baeyens, W.F.J.
Tipo: Info:eu-repo/semantics/article
Ano: 1991
URL: http://www.vliz.be/imisdocs/publications/279128.pdf