%0 Conference Proceedings
%9 ACTI : Communications avec actes dans un congrès international
%A Dupouy Douchement, Cécile
%A Blanchot, Jean
%A Le Bouteiller, Aubert
%A Neveux, J.
%T Variations in the light absorption properties of phytoplankton in the equatorial Pacific : oligo- to mesotrophy
%S Proceedings of the international colloquium photosynthesis and remote sensing
%C Paris
%D 1995
%E Guyot, G.
%L fdi:010006133
%G ENG
%I EARSeL
%K PHYTOPLANCTON ; PRODUCTION PRIMAIRE ; CHLOROPHYLLE ; SPECTRE D'ABSORPTION ; ABSORPTANCE ; VARIATION SPATIALE
%K PACIFIQUE EQUATORIAL
%P 307-311
%U https://www.documentation.ird.fr/hor/fdi:010006133
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_45-46/010006133.pdf
%W Horizon (IRD)
%X The in vivo specific absorption coefficient of phytoplankton a*ph (lambda) was measured along an equatorial transect in the Pacific Ocean during the JGOFS-cruise in Octobre 1994 in order to validate bio-optical models of primary production. The fiber filter technique was used on board, as well as spectrofluorometry for pigment determination and flow cytometry for cells counting. The a*ph (435-441 nm) walues strongly decreased from oligotrophic to mesotrophic waters (between 170°E and 153°W). This zonal variation reflected a change in phytoplankton composition, dominated by #Prochlorococcus$ in the oligotrophic zone and by picoeucaryotes in the mesotrophic one. Such variations in a*ph have to be taken into account for estimating primary production of the equatorial Pacific Ocean from ocean colour imagery. (Résumé d'auteur)
%B Photosynthesis and Remote Sensing : International Colloquium
%8 1995/08/28-30
%$ 126TELAPP05