Cryptobenthic reef fishes: depth distribution and correlations with habitat complexity and sea urchins

In this study, cryptobenthic fish depth patterns and their correlations with habitat complexity and sea urchin densities were investigated. In general, total density, species richness and diversity were higher in the shallower zones (3 m), while evenness was higher at the 10 m depth zone. Among site...

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Bibliographic Details
Published in:Journal of fish biology 2012-04, Vol.80 (4), p.852-865
Main Authors: Dalben, A., Floeter, S. R.
Format: Article
Language:English
Subjects:
Animals
Biodiversity
Blenniidae
Brazil
community structure
Echinoidea
Ecosystem
ecosystem engineer
Fishes - physiology
interference visual census
Marine
Pisces
Population Density
Sea Urchins - physiology
South Atlantic Ocean
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Summary:In this study, cryptobenthic fish depth patterns and their correlations with habitat complexity and sea urchin densities were investigated. In general, total density, species richness and diversity were higher in the shallower zones (3 m), while evenness was higher at the 10 m depth zone. Among sites, species density was similar at the 10 m zone, but at the 3 m zone it varied greatly. Species‐specific depth preferences were found. Correlation between species density and habitat complexity was usually positive. The influence of sea urchin densities on the cryptobenthic fish assemblage was site and species dependent.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.2012.03231.x