De Jesus-Ayson, Evelyn Grace, Ayson, Felix G., and Thepot, Valentin (2014) Early development and seed production of Asian seabass, Lates calcarifer. In: Jerry, Dean R., (ed.) Biology and Culture of Asian Seabass Lates Calcarifer. CRC Press, Boca Raton, FL, USA, pp. 16-30.

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Abstract

[Extract] The Asian seabass Lates calcarifer (Bloch) is widely distributed in the Indo-West Pacific. Because of its high commercial value, it is widely cultured in most of Asia and Australia. However, seed supply from the wild is not abundant; hence the aquaculture of seabass is based on mass seed production in hatcheries. Seabass spawn naturally in captivity (Toledo et al. 1991). Alternatively, they can be induced to spawn by hormonal or environmental manipulations (Kungavankij 1987, Garcia 1989a, b). the development of methods for broodstock management for reliable reproduction of seabass under captive conditions paved the way for studies on the environmental, physiological and nutritional requirements of the developing larvae and the development of protocols for seed production in the hatchery e.g., Parazo et al. 1998, Schipp et al. 2007).

Survival of marine fish larvae is dependent on the interplay of various environmental factors (e.g., temperature and water quality, as well as availability of good quality and nutritionally adequate food supply) with a suite of species-specific characteristics including egg and larval size, amount of energy reserves (volume of yolk and oil globule, if present), utilization rates of energy stores (resorption rates of yolk and oil globule), metabolic demand, initiation of feeding and feeding success, growth rates, swimming and feeding behavior. In general, size provides an advantage (i.e., large eggs give rise to large larvae with large yolk reserves which will sustain larval development and allow the larvae sufficient time to initiate feeding before the onset of irreversible starvation (May 1974)).

This Chapter outlines the characteristics of L. calcarifer eggs and larvae, the changes during embryonic and larval development, advances in seed production and at the same time highlights the relative ease in its mass production.

Item ID:	30885
Item Type:	Book Chapter (Research - B1)
ISBN:	978-1-4822-0807-8
Related URLs:	Publisher
Date Deposited:	06 Feb 2014 04:08
FoR Codes:	07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 100%
SEO Codes:	83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830102 Aquaculture Fin Fish (excl. Tuna) @ 100%
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