Free Content Experimental Evaluation of Fish Recruitment to Combinations of Fish Aggregating Devices and Benthic Artificial Reefs

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Abstract:

Fish aggregating devices (FADs) and benthic artificial reefs have been documented to enhance local fisheries. This study was conducted to investigate experimentally the relative success of combining FADs with benthic artificial reefs and attempt to observe some of the mechanisms by which enhancement occurs. Six replicates (two each of three treatments) were constructed in 26 m of water on a sparsely-colonized algal plain, approximately 2 km south of St. Thomas, U.S. Virgin Islands. The experimental treatments were (1) two benthic artificial reefs constructed of equivalent volumes of queen conch (Strombus gigas) shells; (2) two conch shell reefs surrounded with a cluster of five mid-water FADs; and (3) two clusters of FADs deployed without associated benthic artificial reefs. The replicates were spaced approximately 300 m apart along a transect line. The FAD + artificial reef combinations attracted more species and individuals than the other two treatments. Recruitment and colonization were greater on the artificial reefs with the FADs present. Larval recruits are apparently attracted by the structure nearer to the surface and move to available substrate on the bottom. The results indicate that FADs may not only be important management tools for aggregating fishes but also potentially useful for the enhancement of recruitment to benthic artificial reefs and possibly offshore banks and deep reefs.

Document Type: Research Article

Publication date: March 1, 1989

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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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