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dc.contributor.authorQuinitio, Emilia T.
dc.contributor.authorde Pedro, Jennette
dc.contributor.authorParado-Estepa, Fe Dolores
dc.date.accessioned2014-05-21T08:37:46Z
dc.date.available2014-05-21T08:37:46Z
dc.date.issued2007
dc.identifier.citationQuinitio, E. T., de Pedro, J., & Parado-Estepa, F. D. (2007). Ovarian maturation stages of the mud crab Scylla serrata. Aquaculture Research, 38(14), 1434-1441.en
dc.identifier.issn1355-557X
dc.identifier.urihttp://hdl.handle.net/10862/2069
dc.description.abstractOvarian maturation in adult wild-sourced and pond-grown Scylla serrata (Forsskål) was determined based on gross morphology and histological appearance. There were no significant differences noted in the histological features of both wild and pond-reared S. serrata females. Ovarian maturation was classified into five stages: immature, early maturing, late maturing, fully mature and spent. The immature ovaries are thin and translucent to off white and contain oogonia, primary oocytes with large nuclei. The follicle cells were found around the periphery of the lobes and an area among groups of oogonia and oocytes. The follicle cells gradually enclosed the oocytes. The early-maturing ovaries were yellow and small yolk globules started to appear in larger oocytes. In late-maturing ovaries, the colour became light orange and lobules were apparent. Yolk globules occurred in the cytoplasm with larger globular inclusions towards the periphery, while follicle cells were hardly recognizable. Fully mature ovaries were orange to deep orange and had swollen lobules. Large yolk globules were apparent in the entire cytoplasm. Follicle cells were hardly seen. Spent ovaries were similar to the early-maturing and late-maturing stage in partially spawned females. The ovarian development was correlated closely to the gonadosomatic index, oocyte diameter, and ovarian histology. The classification of ovarian maturation provides baseline information for further studies on reproductive biology. Likewise, the information provides a guide for broodstock management in the hatchery.en
dc.description.sponsorshipThis study was supported by the European Union through the European Commission — Culture and Management of Scylla spp. Project (ICA4-CT-2001-10022). The authors thank Quirico Ganon of Crustacean Hatchery Unit for obtaining the crabs, Jeobert Fernando and Ronelo Torrigue for broodstock maintenance and the staff of the Microtechnique Unit of SEAFDEC/AQD for processing histological samples.en
dc.language.isoenen
dc.publisherBlackwell Publishingen
dc.subjectDecapodaen
dc.subjectScylla serrataen
dc.titleOvarian maturation stages of the mud crab Scylla serrataen
dc.typeArticleen
dc.citation.volume38
dc.citation.issue14
dc.citation.spage1434
dc.citation.epage1441
dc.citation.journalTitleAquaculture Researchen
dc.subject.asfaBottom cultureen
dc.subject.asfaBrood stocksen
dc.subject.asfaClassificationen
dc.subject.asfaCrustacean cultureen
dc.subject.asfaCytoplasmen
dc.subject.asfaDevelopmental stagesen
dc.subject.asfaEmbryonic developmenten
dc.subject.asfaMuden
dc.subject.asfaSexual maturityen
dc.identifier.essn1365-2109
dc.identifier.doi10.1111/j.1365-2109.2007.01650.x


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  • AQD [1129]
    These papers were contributed by AQD staff to various national and international journals

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