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The Effect of Stable Dissolved‐Oxygen Stress on Marine Benthic Invertebrate Community Diversity
Author(s) -
Nichols Jean Ann
Publication year - 1976
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.19760610603
Subject(s) - anoxic waters , benthic zone , invertebrate , oceanography , structural basin , environmental science , ecology , diversity (politics) , biology , geology , paleontology , sociology , anthropology
The Fosa de Cariaco off the coast of Venezuela is an anoxic basin which is subject to small seasonal fluctuations in the depth of the anoxic water. Samples taken in the interface region (between oxic and anoxic waters) contained from 13 to 37 species represented by 117 to 380 individuals. Species‐diversity, based on H ′(s), was greater than that previously reported for samples from oxygen minimum regions. It is suggested that the relatively stable low dissolvedoxygen concentrations allow the development of diverse assemblages.