3 resultados para substrats rocheux

em Aquatic Commons


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From the analysis of typical animal populations, the author tries to draw an outline of a general bionomic system and to describe the effects of predominant ecological factors (wave action, insolation, salinity and contents of sea water) on the characteristic species (Tectarius nodulosus, Tectarius novaezelandiae, Chthamalus stellatus, Tetraclita porcsa, Ostrea forskali, Balanus tintinna bulum and Madreporaria). He also outlined a rapid sketch of seasonal variations of the biota.

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In this part 1, after a brief description of the habitat, the author describes in details (in descending order) the supralittoral, littoral and infralittoral zones. The author describes many permanent groups of Cyanophyceae in the higher horizon of intertidal zone, the cosmopolitan group of Navicula Grevillei, Hildenbrandtia prototypus, the pantropical group of Calothrix pilosa, Chaetomorpha antennina, indopacific group of Dermonema Frappieri, Sargassum, Padina, Thatassia Hemprichii, Halophila. The group of cold or temperate habitat with Bangiophycideae are present in winter. Some are described, formed by the oysters, Vermetus or Cirripeds, or by the algae (Calothrix, Brachytrichia, Gelidium, Dermonema, Chaetomorpha).

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This primary report includes 168 common, vegetal and animal species collected on the intertidal rocky shore of the Nhatrang Bay, during the study of the ecology of this area.