Enhancement of the Nearshore Fish Assemblage in the Canary Islands with Artificial Habitats
Abstract:Point count surveys (5 min, 100 m2) were conducted to gather fish assemblage data on the efficacy of using FADs and/or cinder blocks to increase fishery resources in an area along the southern coast of Gran Canaria. A comparison between the pre- and post-deployment faunal parameters indicates that 16 more species were attracted to the study area. The dependent variables (i.e., number of species, number of individuals and average length) increased after artificial habitat deployment regardless of the configuration type of FAD alone, block alone, or FAD and block together after deployment. The values for these variables were also higher for sand areas proximate to the reefs. Although the assemblage parameters were higher for nearly all variables, the increases were attributable to fishes unimportant to the commercial and recreational fisheries of the Canaries. Lack of available recruits or local perturbations may be responsible for the lack of preferred fishes being attracted to the reef.
Document Type: Research Article
Publication date: 1994-09-01
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