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Le peuplement algal du port de Port-Vendres: recherches sur l'aire minimale qualitative = The marine phytobenthos of Port-Vendres harbour: researches on the qualitative minimal area
Boudouresque, C.F.; Belsher, Th. (1979). Le peuplement algal du port de Port-Vendres: recherches sur l'aire minimale qualitative = The marine phytobenthos of Port-Vendres harbour: researches on the qualitative minimal area. Cah. Biol. Mar. 20(3): 259-269
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Boudouresque, C.F.
  • Belsher, Th.

Abstract
    Two points are selected on the species area curve, namely Molinier's points 20/2 and 20/1; in these points an increase of the area of 20% gives an increase of 2% (Molinier's point 20/2), or 1% (Molinier's point 20/1) in the species number. The location of these points does not depend on the ratio between the y and x axes which is used in plotting data and can be determined notwithstanding the total area sampled. The authors arbitrarily decide that these points are fiducial limits: minimal area lies between these two points. In Port-Vendres harbour, the minimal area lies between 64 and 140 cm-2. On this bases, the minimal areas of six other Mediterranean phytocoenoses were determined from previously published sources

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