Volume 49
Cinética de alimentación de larvas del caracol de una Strombus pugilis de 1 y 30 dias
Authors
Aldana-Aranda, D.; Patiño-Suárez, V.; Brito-Manzano, N. Download PDF Open PDF in BrowserOther Information
Date: November, 1996
Pages: 469-484
Event: Proceedings of the Forty-Nine Annual Gulf and Caribbean Fisheries Institute
City: Christ Church
Country: Barbados
Abstract
The feeding kinetics of Strombus pugilis larvae was established through the analysis of food ingested larva and its evolutaion along the digestive process. Ingestion and digestion processes were observed directly using epifluorescence microscopy. Variations in each process were analyzed in function of larval age. Larvae were of 1 and 30 days old after hatching. Tetraselmis suecica was used as a food source at a concentration of 1,000 cells/ml.\Feeding kinetic variations between both ages were studied qualitative and quatitative, by means of nutritional stages of food ingested and four feeding indices. Independently of larval age, both populations showed a high A.I.I. (>90%); but the A.I.D. was high (87%) only for the 30 day-old larvae. One day-old larvae did not digest T. suecica in an experimental time of 24 hours. The results of this research provide basic information to the culture and nutrition of a gastropod of recent fishery importance: the fighting conch, Strombus pugilis.