Excrétion organique du phytoplancton et activité bacterienne hétérotrophe dans le Dôme de Guinée (Océan Atlantique Tropical Est)

Herbland, A. and Dandonneau, Y. (1975) Excrétion organique du phytoplancton et activité bacterienne hétérotrophe dans le Dôme de Guinée (Océan Atlantique Tropical Est). Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan, 6(2), pp. 1-18.

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Abstract

Primary production rates in the Gulf the Guinea (east tropical Atlantic) were measured with in situ incubations. The extracellular organic carbon passed through 0.8 u pore size membrane filters averaged 29.5% of the carbon fixed by photosynthesis. These is a good linear correlation (r=0.86) between assimilation and organic excretion. The significance and limits of the method for the measurements of low rates of photosynthesis is discussed. The influence of ecological factors (nutrients, light and stability) cannot be demonstrated. The importance of bacterial regeneration processes by reutilization of algal extracellular products is assessed.

Item Type: Article
Title: Excrétion organique du phytoplancton et activité bacterienne hétérotrophe dans le Dôme de Guinée (Océan Atlantique Tropical Est)
Personal Creator/Author:
CreatorsEmail
Herbland, A.
Dandonneau, Y.
Journal or Publication Title: Documents Scientifiques, Centre de Recherches Océanographiques, Abidjan
Volume: 6
Number: 2
Page Range: pp. 1-18
Date: November 1975
Issuing Agency: Centre de Recherches Océanographiques, Côte d'Ivoire
Uncontrolled Keywords: Guinea dome; East tropical Atlantic; photosynthesis; bacteria
Subjects: Biology
Ecology
Oceanography
Item ID: 7967
Depositing User: Ms Maria Kalentsits
Date Deposited: 11 Mar 2012 08:52
Last Modified: 11 Mar 2012 08:52
URI: http://aquaticcommons.org/id/eprint/7967

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