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Improving the culture conditions of juvenile queenconch (Strombus gigas Linne) for grow out purposes

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Date Issued:
2003
Title: Improving the culture conditions of juvenile queenconch (Strombus gigas Linne) for grow out purposes.
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Name(s): Spring, Ashley
Davis, Megan
Type of Resource: text
Genre: Article
Date Issued: 2003
Publisher: CYTED
Place of Publication: Valencia, Spain
Physical Form: pdf
Extent: 9 p.
Language(s): English
Identifier: FA00007398 (IID)
Note(s): Queen conch, Strombus gigas, are overfished throughout Florida and the Caribbean. In an attempt to curtail the depleted stocks, Queen conch aquaculture has progressed through the last forty years. There still remain a number of fundamental aquaculture methods that need research to improve culture conditions of conch. This study examined the effects of stocking density and tank substrate on growth and survival of hatchery-reared juvenile Queen conch to assist in determining cost effective culture conditions. Juvenile conch were stocked at a mean shell length of 32.57 ± 3.58 mm and grown at stocking densities of 20, 75, and 200 conch•m⁻² on two types of sand substrate in a recirculating water system for four months. Consistent with previous research, conch grown at lower densities grew significantly faster than conch grown at high densities. Although there were no significant differences in growth between conch grown on the two substrates, crushed coral aragonite costs one-third the price of the aragonite chips. There were no significant differences in survival between the different densities or substrates. In order to increase growth and reduce hatchery costs, it is recommended that juvenile Queen conch are grown at a stocking density of 75 conch•m⁻² on crushed coral aragonite.
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 1498
This manuscript is an author version with the final publication available and may be cited as: Spring, A. & Davis, M. (2003). Improving the culture conditions of juvenile queen conch (Strombus gigas Linne) for grow out purposes. In D. A. Aranda (Ed.), El Caracol Strombus gigas: conocimiento integral para su manejo sustentable en el Caribe (pp. 147-153). Valencia, Spain: CYTED.
Subject(s): Queen conch
Strombus gigas
Aquaculture
Aquaculture--methods
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00007398
Host Institution: FAU