Stressed tropical benthic faunal communities off Miami, Florida

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Abstract
Quantitative sampling of the benthic fauna was made in two areas in Biscayne Bay, Florida. The number of species, abundance, biomass, diversity and spatial dispersion are described. Comparisons with an earlier investigation made in these areas in 1957–59 suggest that changes have occurred in the communities. Low specialization in many species and a low diversity indicate that the communities are disturbed. The reasons for this are suggested to be occasionally low winter temperature, high turbidity and influence by man. A comparative study of benthic diversity and its relation with the state of environmental stability is subjected to discussion.