Concentrations of metals in Luidia clathrata and Luidia senegalensis (echinodermata: asteroidea) in tampa bay and the nearshore gulf of mexico,florida |
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| Institution: | 1. Department of Biology, University of South Florida, Tampa, FL 33620, U.S.A.;2. Department of Sanitary Sewers, City of Tampa, 2700 Maritime Boulevard, Tampa, FL 33605, U.S.A. Tel. 813-974-3250; Fax 813-974-5273;1. Wageningen University & Research, Wageningen Marine Research, The Netherlands;2. Wageningen University & Research, Aquaculture and Fisheries Group (AFI), Wageningen, The Netherlands;3. NSW Department of Primary Industries, Narrandera Fisheries Centre, Narrandera NSW, Australia;4. Community Conch, Lopez Island, WA, USA;5. Centre for Resource Management and Environmental Studies (CERMES), University of the West Indies, Cave Hill, Barbados;6. Facultad de Ciencias del Mar (FACIMAR), Universidad Autonoma de Sinaloa (UAS), Mazatlan, Sinaloa, Mexico;7. Direccion de Catedras-CONACYT, CONACYT, Ciudad de Mexico, Mexico;8. Campeche, Campeche, Mexico;1. UNISANTA – Santa Cecília University, Department of Ecotoxicology, Oswaldo Cruz St., 266, 11045-907 Santos, São Paulo, Brazil;2. USP – University of São Paulo, Oceanographic Institute (IO), Department of Biological Oceanography – Praça do Oceanográfico, 191, 05508-900, Cidade Universitária, São Paulo, São Paulo, Brazil;3. UNIFESP – Federal University of São Paulo, Department of Marine Science, Almirante Saldanha da Gama Ave., 89, 11030-490 Santos, São Paulo, Brazil;1. Universidad de Los Lagos, Programa de Magíster en Ciencias, mención Producción, Manejo y Conservación de Recursos Naturales, Chile;2. Universidad de Los Lagos, Centro i∼mar, Camino a Chinquihue km 6, Puerto Montt, Chile;3. Universidad Austral de Chile, Instituto de Acuicultura, Los Pinos s/n, Balneario Pelluco, Puerto Montt, Chile |
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| Abstract: | 1. The concentrations of zinc in the pyloric caeca and body wall were c. 10-fold greater than lead and nickel and c. 100-fold greater than cadmium and silver.2. The concentration of metal in the pyloric caeca to that in the body wall was equal or significantly greater for cadmium, equal or significantly less for silver and zinc, and significantly less for lead and nickel.3. The profiles of the metal concentrations in the organs were site specific, but the concentrations in the pyloric caeca and body wall were usually greater in the populations in the Bay than those in the Gulf of Mexico.4. The concentrations of metals in the body wall were less in small than large L. clathrata, and in proximal than distal parts of the arms of L. senegalensis. |
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