La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Food habits of red drum and spotted seatrout in a restored mangrove impoundment
Auteurs :	R. J. Llanso, Auteur ; S. S. Bell, Auteur ; F. E. Vose, Auteur
Type de document :	Article
Dans :	Estuaries (21(2) JUN 1998)
Article en page(s) :	294-306
Résumé :	Benthic resource utilization by red drum (Sciaenops ocellatus) and spotted seatrout (Cynoscion nebulosus) was studied in a restored, mangrove-rimmed impoundment (Cabbagehead Bayou) of Upper Tampa Bay, Florida, and in a nearby, natural site of unaltered tidal regime (Double Branch Bay). Diets of fish captured from August 1990 to May 1992 were determined from stomach content analysis. Simultaneously, food availability was evaluated by sampling benthic macroinvertebrates, mobile decapods, and small fish. Red drum and spotted seatrout utilized the restored habitat 1 yr after it was opened to tidal influence. Both species also were collected in the natural mangrove. Although there were noted differences in benthic assemblages between the two sites, red drum and spotted seatrout exhibited flexibility in diet, feeding on abundant and accessible prey. The high abundance of microcrustacea, such as amphipods, on detritus accumulated in the restored habitat constituted a main food resource for both fish species. Major food items in the diet of small (

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