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Maturation and induced spawning of the mangrove red snapper (Lutjanus argentimaculatus) reared in a floating net cage in the Philippines

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Date
1996
Author
Emata, Arnil C.
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Abstract
Wild-caught mangrove red snapper (Lutjanus argentimaculatus) were reared in a floating net cage at SEAFDEC/AQD's Igang Marine Substation at Guimaras Island, Central Philippines. In 1993, monthly samplings and induced spawning trials were conducted as part of a project on seed production. Gonadal development began in February for males and April for females, reached a peak in September and declined in December. Males and females had ripe gonads for up to 5-6 consecutive months. Spawning occurred in the evening (2000 to 2300 hours), 32-36 hours after a single intramuscular injection of 1,500 IU human chorionic gonadotropin kg-1 body weight (BW). About 0.53-2.14 million eggs were collected per female (2.5-4.4 kg BW) with fertilization rates of 21-97% and hatching rates of 42-80% resulting in 30-85% normal larvae (straight and without deformities). The results strongly suggest the feasibility of breeding mangrove red snapper in floating net cages.
URI
http://hdl.handle.net/10862/405
Suggested Citation
Emata, A. C. (1996). Maturation and induced spawning of the mangrove red snapper (Lutjanus argentimaculatus) reared in a floating net cage in the Philippines. In F. Arrenguin-Sanchez, J. L. Munro, M. C. Balgos, & D. Pauly (Eds.), Biology, Fisheries and Culture of Tropical Groupers and Snappers (pp. 378–384). Makati City, Philippines: International Center for Living Aquatic Resources Management.
Subject
cage culture ASFA; fish culture ASFA; floating cages ASFA; induced ovulation ASFA; sexual maturity ASFA; mariculture; Philippines AGROVOC; Lutjanus argentimaculatus AGROVOC
Taxonomic term
Lutjanus argentimaculatus GBIF
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  • AQD Conference Proceedings [288]

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