Free Content Artificial Structures to Mitigate Marina Construction Impacts on Spiny Lobster, Panulirus Argus

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Abstract:

An array of 150 small concrete block structures was placed in Biscayne Bay, Florida, adjacent to a marina prior to its rehabilitation. A population of juvenile spiny lobsters, Panulirus argus, moved from the marina into the artificial structures before construction began in the marina. The lobsters stayed in the structures for 14 months during construction. After construction, the structures were placed in the marina and the lobsters moved back into them. Weekly diver surveys and lobster tagging revealed seasonal population fluctuations of 316 to 2,854 lobsters in the artificial structures, and that these lobsters were recruited into the Florida fishery from Key West to Lake Worth, a distance of 300 km. The artificial structures did not increase the lobster population in the bay, but provided a haven for lobsters during construction and effectively replaced natural habitat lost as a result of marina construction. Post-larval recruitment appeared to be the major limiting factor for the lobster population in Biscayne Bay, not juvenile habitat.

Document Type: Research Article

Publication date: July 1, 1985

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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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