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Density dependent growth of the tropical abalone Haliotis asinina in cage culture

The effects of different stocking densities on the growth, feed conversion ratio and survival of two size groups of the tropical abalone Haliotis asinina were determined. Three culture trials were conducted in net cages installed in a sheltered cove, Guimaras Province, Philippines. Trials 1 and 2 we...

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Published in:Aquaculture 1999-02, Vol.171 (3), p.227-235
Main Authors: Capinpin, E.C, Toledo, J.D, Encena, V.C, Doi, M
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Language:English
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description The effects of different stocking densities on the growth, feed conversion ratio and survival of two size groups of the tropical abalone Haliotis asinina were determined. Three culture trials were conducted in net cages installed in a sheltered cove, Guimaras Province, Philippines. Trials 1 and 2 were conducted using 15–20 mm abalone juveniles for 150 days, while trial 3 was conducted using 35–40 mm abalone for 180 days. The animals were fed sufficient amounts of the red alga, Gracilariopsis bailinae (= G. heteroclada), throughout the experiment. There was an inverse relationship between growth (length and weight) and stocking density. Feed conversion ratio was not influenced by density, but was observed to be higher for larger animals. Survival was not significantly affected by density. Net cages are appropriate for culture of H. asinina. This study showed that H. asinina can reach commercial size of about 60 mm in one year. It also showed that growth of H. asinina can be sustained on a single-species diet. An economic analysis will be important in choosing the best stocking density for commercial production.
doi_str_mv 10.1016/S0044-8486(98)00490-6
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subjects Animal aquaculture
Animal productions
Biological and medical sciences
CAGE CULTURE
CARGA GANADERA
CRECIMIENTO
CROISSANCE
CULTIVO EN JAULAS
CULTURE EN CAGE
EFFICACITE ALIMENTAIRE
EFICIENCIA DE CONVERSION DEL PIENSO
Feed conversion
FEED CONVERSION EFFICIENCY
Feed conversion ratio
Fish hatcheries
Fishery economics
Fundamental and applied biological sciences. Psychology
GROWTH
HALIOTIS
Haliotis asinina
Invertebrate aquaculture
Mollusca
STOCKING DENSITY
SUPERVIVENCIA
SURVIE
SURVIVAL
TAUX DE CHARGE
Tropical abalone
title Density dependent growth of the tropical abalone Haliotis asinina in cage culture
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