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dc.contributor.authorIwai, Kenji
dc.contributor.authorKiso, Katsuhiro
dc.contributor.authorKubo, Hirofumi
dc.contributor.editorPrimavera, Jurgenne H.
dc.contributor.editorQuinitio, Emilia T.
dc.contributor.editorEguia, Maria Rowena
dc.date.accessioned2019-01-31T01:47:47Z
dc.date.available2019-01-31T01:47:47Z
dc.date.issued2006
dc.identifier.citationIwai, K., Kiso, K., & Kubo, H. (2006). Biology and status of aquaculture for giant clams (Tridacnidae) in the Ryukyu Islands, southern Japan. In J. H. Primavera, E. T. Quinitio, & M. R. R. Eguia (Eds.), Proceedings of the Regional Technical Consultation on Stock Enhancement for Threatened Species of International Concern, Iloilo City, Philippines, 13-15 July 2005 (pp. 27-38). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.en
dc.identifier.isbn9789718511794
dc.identifier.urihttp://hdl.handle.net/10862/2931
dc.description.abstractThe Ryukyu Islands consist of many islands located between Kyushu in mainland Japan and Taiwan. The islands in the south-western area of the Ryukyu Islands belong to the Okinawa Prefecture. The Ryukyu Islands are strongly affected by the Kuroshio Current and are renowned for their coral reefs with high diversity of tropical and subtropical species. Giant clams traditionally have been utilized as fisheries resources for a long time in this area. According to fisheries statistics, catches of Tridacna crocea in Okinawa have decreased drastically during the last 30 years and currently are less than one tenth of previous catches. Fishing can easily deplete stocks of giant clams because the clams inhabit shallow waters and take at least three years to attain sexual maturity. Techniques for the mass seed production and aquaculture of three species (T. crocea, T. squamosa, and T. derasa) were established in Okinawa. Four hundred thousand seeds of giant clams of 8 mm shell length (SL) are supplied to fishermen for use in aquaculture or stock enhancement every year. This paper will review the (1) biology of giant clams, (2) present status of aquaculture of giant clams in Okinawa, and (3) other studies on giant clams in southern Japan.en
dc.language.isoenen
dc.publisherAquaculture Department, Southeast Asian Fisheries Development Centeren
dc.subjectJapanen
dc.subjectTridacna derasa
dc.subjectTridacna crocea
dc.subjectTridacna squamosa
dc.subjectTridacna maxima
dc.subjectHippopus hippopus
dc.titleBiology and status of aquaculture for giant clams (Tridacnidae) in the Ryukyu Islands, southern Japanen
dc.typeConference paperen
dc.citation.spage27
dc.citation.epage38
dc.citation.conferenceTitleProceedings of the Regional Technical Consultation on Stock Enhancement for Threatened Species of International Concern, Iloilo City, Philippines, 13-15 July 2005en
dc.subject.asfaClam cultureen
dc.subject.asfaBivalve cultureen
dc.subject.asfaClam fisheriesen
dc.subject.asfaSpaten
dc.subject.asfaMarine aquacultureen
dc.subject.asfaSeed (aquaculture)en
dc.subject.asfaSeed productionen
dc.subject.asfaStocking (organisms)en
dc.subject.asfaTransplantationen
dc.subject.asfaBiologyen
dc.subject.asfaFunctional morphologyen
dc.subject.asfaClassificationen
dc.subject.asfaTaxonomyen
dc.subject.asfaHabitaten
dc.subject.asfaLife cycleen
dc.subject.asfaMolluscan larvaeen


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