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Gradient of dissolved free amino acids and phytoplankton in a shallow bay

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Abstract

A 3 h survey of the concentrations of individual free amino acids, chlorophyll a and phytoplankton species biomass was conducted in the surface waters of a shallow bay. Significant coefficients of correlation were found between chlorophyll a, nanoflagellates, and DFAA concentrations. Although phytoplankton biomass variations sometimes relate to DFAA concentration patterns, consideration of the physiological activity of both phytoplankton and microheterotrophs would undoubtedly explain a more significant fraction of the DFAA variation.

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Authors and Affiliations

  1. Centre d'Etudes d'Océanographie et de Biologie Marine, C. N. R. S., Station Biologique, F-29211, Roscoff, France

    S. A. Poulet & V. Martin-Jezequel

  2. Centre de Recherche er Ecologie marine et Aquaculture de l'Houmeau, Case 5, F-17137, Nieul sur Mer, France

    D. Delmas

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  1. S. A. Poulet
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  2. V. Martin-Jezequel
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  3. D. Delmas
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This work is a contribution of GREPMA (Groupe Régional d'Etudes Pélagiques en Manche-Atlantique)

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Poulet, S.A., Martin-Jezequel, V. & Delmas, D. Gradient of dissolved free amino acids and phytoplankton in a shallow bay. Hydrobiologia 121, 11–17 (1985). https://doi.org/10.1007/BF00035224

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  • DOI: https://doi.org/10.1007/BF00035224

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