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Species Diversity of Periphyton Communities in the Littoral of a Temperate Lake
Author(s) -
Brown SharonDale
Publication year - 1973
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.19730580602
Subject(s) - periphyton , standing crop , littoral zone , ecology , species evenness , substrate (aquarium) , diversity index , temperate climate , competition (biology) , environmental science , vegetation (pathology) , geography , species diversity , biology , species richness , algae , biomass (ecology) , medicine , pathology
Abstract Species diversity of littoral periphyton sampled from Elk Lake (B. C., Canada) was dependent on station location and period of substrate exposure. Site differences were not statistically related to physico‐chemical variables. However, diversity was negatively correlated with age of the communities and standing crop, and appeared to be associated with biological interaction or competition for available substrate surface. Further investigation revealed that the Shannon‐Weaver index, as commonly applied, was inappropriate for data summarization since it reflected only the changes in evenness of the most abundant species. Components of the diversity index, as illustrated by the periphyton, were discussed.