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dc.contributor.authorDuray, Marietta N.
dc.contributor.editorLacanilao, F.
dc.contributor.editorColoso, Relicardo M.
dc.contributor.editorQuinitio, Gerald F.
dc.date.accessioned2011-05-20T03:35:27Z
dc.date.available2011-05-20T03:35:27Z
dc.date.issued1994
dc.identifier.citationDuray, M. N. (1994). Sea bass, groupers and snappers. In F. Lacanilao, R. M. Coloso, & G. F. Quinitio (Eds.), Proceedings of the Seminar-Workshop on Aquaculture Development in Southeast Asia and Prospects for Seafarming and Searanching; 19-23 August 1991; Iloilo City, Philippines. (pp. 3-12). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.en
dc.identifier.isbn971851127X
dc.identifier.urihttp://hdl.handle.net/10862/36
dc.description.abstractStudies on sea bass (Lates calcarifer) broodstock were directed at techniques to maximize egg production. Now known are the: optimum luteinizing hormone releasing hormone analogue (LHRHa) dose range to induce spawning, optimum egg size responsive to LHRHa induction, appropriate time for induction, proper storage conditions for LHRHa, and induction of spermiation in males. Gonadal maturation and spawning are successfully induced by LHRHa and/or 17 alphamethyltestosterone. An experiment on photoperiodic induction of sexual maturation is being conducted to produce seed year round. Increased information on larval morphology and physiology of sea bass led to improvements in feeding strategies and transport techniques. Studies on nutrient requirements and practical diets are currently being undertaken for different stages/sizes of sea bass. An economic assessment found an integrated sea bass production system viable. Studies on groupers (Epinephelus spp.) have been geared towards broodstock development including induction of sex inversion by hormonal control, intraspecific interaction, and sex control using synthetic anabolic steroids. Spontaneous maturation and successive spawnings of captive Epinephelus suillus were achieved in 1990. Larval rearing techniques used for other marine fish species were tried but with limited success. Culture techniques in ponds and floating cages using SEAFDEC-formulated diets or commercial pellets are being developed. Studies on snappers (Lutjanus spp.) have been started with the identification of species common in Panay Island.en
dc.language.isoenen
dc.publisherAquaculture Department, Southeast Asian Fisheries Development Centeren
dc.subjectEpinephelusen
dc.subjectLates calcariferen
dc.subjectLutjanusen
dc.subjectPhilippinesen
dc.titleSea bass, groupers and snappersen
dc.typeConference paperen
dc.citation.spage3
dc.citation.epage12
dc.subject.asfasex reversalen
dc.subject.asfapond cultureen
dc.subject.asfainduced ovulationen
dc.subject.asfaspermen
dc.subject.asfaseed productionen
dc.subject.asfaspawningen
dc.subject.asfafish larvaeen
dc.subject.asfalight effectsen
dc.subject.asfasex hormonesen
dc.subject.asfatransportationen
dc.subject.asfafecundityen
dc.subject.asfanutritional requirementsen
dc.subject.asfasexual maturityen
dc.subject.asfacage cultureen
dc.subject.asfabreeding stocken
dc.subject.asfasteroidsen
dc.citation.conferenceTitleSeminar-Workshop on Aquaculture Development in Southeast Asia and Prospects for Seafarming and Searanching; 19-23 August 1991; Iloilo City, Philippines.en
dc.subject.scientificNameLates calcariferen


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