Abstract
Feeding of the bigeye flounder Hippoglossina macrops on the shrimp Heterocarpus reedi was analysed between 20 November and 4 December 1995. Feeding on H. reedi intensified between 0900 and 1600 hours with a second, smaller peak between 2300 and 0200 hours. Assuming an exponential gastric evacuation model, the gastric evacuation rate was estimated as 0.197 %W h -1 (95% CI=0.025-0.369). The daily ration decreased latitudinally from north to south from 3.62 to 2.66 and from 2.06 to 0.41 %W, respectively. Consumption was related positively to shrimp biomass and influenced by flounder size structure in the three fishing zones analysed and was estimated as 0.08-0.02% of the total shrimp biomass.
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