The biotic community at a shelf-edge reef, which abruptly delineates a continuous fringing reef from the adjacent mesophotic reef off southwestern Puerto Rico, USA, was used to identify patterns of differential habitat use in reef fishes. Our study used multivariate analyses to identify
groupings within the fish community associated with this area. These groups were suggestive of differential habitat use by the fish community, in particular with respect to the reef-terrace vs slope locations. The benthic composition among these two location stratifications differed while
remaining surprisingly consistent within each location strata (i.e., reef-terrace vs slope). The variability in both the fish and benthic communities was best explained in our model by the location stratifications within each site as opposed to the physical position of the site itself along
the shelf edge. Food resources, structure (i.e., habitat complexity), or both may contribute to differential habitat use within the reef-fish communities observed. A lesser division was apparent within the reef-terrace locations that grouped the western samples separately from the eastern.
The results presented in the present study suggest that the fish communities along the shelf-edge reef adjacent to La Parguera, Puerto Rico, are divided by habitat type and location as determined by food and shelter availability. Here, we present an analysis whereby community structure can
be identified at varying spatial scales within a single depth zone to inform managers prior to strategy implementation.
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Document Type: Research Article
University of South Florida, College of Marine Science, St. Petersburg, Florida 33701;, Email: [email protected]
University of South Florida, College of Marine Science, St. Petersburg, Florida 33701
University of Puerto Rico at Mayagüez, Department of Marine Science, PO Box 9000, Mayagüez, Puerto Rico 00681
Publication date: 01 July 2017
This article was made available online on 23 January 2017 as a Fast Track article with title: "Differential habitat use of reef fishes on a shelf-edge reef off La Parguera, Puerto Rico".
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The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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