Abstract
The structure of assemblages of fish on small patch reefs was experimentally investigated by totally denuding three experimental reefs, and following their ‘recovery’ and concomitant changes in three control reefs by subsequent visual censusing. Experimental treatment had no significant effect on the number of fish or species subsequently present, nor on the faunal composition of the assemblages. However, all assemblages, both control and experimental, exhibited significant change in structure through the 28 month period they were followed. Such assemblages thus appear to have low constancy, or stability, but high resilience. The results conform to those of previous small-scale, or artificial reef studies, and are compatible with a view emphasising the role of variability in recruitment in determining the structure of reef fish assemblages.
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