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Facteurs limitant la production primaire des eaux oligotrophes d'une aire eôtière méditerranéenne (Calanque d'En‐Vau, Marseille). Factors Limiting the Primary Production of Oligotrophic Waters in a Mediterranean Coastal Area (Calanque d'En‐Vau, Marseilles)
Author(s) -
Berland B. R.,
Bonin D. J.,
Maestrini S. Y.
Publication year - 1978
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19780630407
Subject(s) - limiting , phytoplankton , mediterranean climate , environmental science , nutrient , mediterranean sea , phosphorus , oceanography , ecology , biology , chemistry , geology , mechanical engineering , organic chemistry , engineering
The importance of different factors involved in the limitation of primary production in oligotrophic Mediterranean waters were investigated, through both nutrient and production estimations and algal bioassays. All the results obtained show that phosphorus is the main limiting factor of algal production. Nitrogen and chelating substances appear to be less limiting and vitamins play a small role. Light and temperature were not limiting, but higher temperatures were responsible for increased physiological activities of the phytoplankton. Previous results from the literature and those reported allow the authors to conclude that, as far as primary production is concerned, the northwestern part of the Mediterranean Sea differs from the large oceans.