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dc.contributor.authorde la Cruz-Huervana, Joana Joy Y.
dc.contributor.authorQuinitio, Emilia T.
dc.contributor.authorCorre, Valeriano L.
dc.date.accessioned2019-09-19T01:46:20Z
dc.date.available2019-09-19T01:46:20Z
dc.date.issued2019
dc.identifier.citationde la Cruz-Huervana, J. J. Y., Quinitio, E. T., & Corre, V. L. (2019). Induction of moulting in hatchery-reared mangrove crab Scylla serrata juveniles through temperature manipulation or autotomy. Aquaculture Research, 50(10), 3000-3008.en
dc.identifier.issn1355-557X
dc.identifier.urihttp://hdl.handle.net/10862/3523
dc.description.abstractThe effects of temperature and autotomy of chelipeds on survival, growth and moulting of mangrove crab (Scylla serrata) juveniles were investigated under laboratory conditions for 60 days. Hatchery‐produced crabs with 2.0–2.3 cm internal carapace width (1.7–2.2 g body weight) at intermoult stage were exposed to one of four temperature treatments (constant 29, 32 or 35°C, or ambient [24–31°C]) or subjected to cheliped autotomy. All crabs held at 35°C had 100% mortality due to incomplete moulting during first moult. The mean survival of crabs at termination was 58%, 64% and 50% for ambient temperature, 29 and 32°C respectively. Specific growth rate (SGR) of crabs in the ambient and 29°C were comparable but significantly lower than those at 32°C. The moult interval of the crabs was significantly shorter in treatments with constant water temperature of 29 and 32°C compared with ambient temperature. The survival of crabs with intact chelipeds was comparable with those with one or two autotomized chelipeds. Crabs with intact or one autotomized chelipeds had significantly higher SGR than crabs with both chelipeds autotomized in the first moult. On the second moult, however, high SGR was observed in crabs with two chelipeds autotomized. The moult interval was significantly shorter in the autotomized crabs compared with crabs with intact chelipeds. The results suggest that the optimum water temperature for rearing S. serrata juveniles ranges from 29 to 32°C. Likewise, autotomy of chelipeds can promote moulting without adversely affecting survival of crabs.en
dc.publisherWileyen
dc.subjectScylla serrataen
dc.subjectDecapodaen
dc.subjectCheliped autotomyen
dc.subjectMangrove craben
dc.subjecthatcheriesen
dc.titleInduction of moulting in hatchery-reared mangrove crab Scylla serrata juveniles through temperature manipulation or autotomyen
dc.typeArticleen
dc.citation.volume50
dc.citation.issue10
dc.citation.spage3000
dc.citation.epage3008
dc.citation.journalTitleAquaculture Researchen
dc.subject.asfaaquatic crustaceansen
dc.subject.asfagrowth rateen
dc.subject.asfabrackishwater crustaceansen
dc.subject.asfabehaviouren
dc.subject.asfajuvenilesen
dc.subject.asfawater treatmenten
dc.subject.asfatemperatureen
dc.subject.asfasurvivalen
dc.subject.asfawater temperatureen
dc.subject.asfarearing techniquesen
dc.subject.asfabody weighten
dc.subject.asfamoultingen
dc.subject.asfamarine crustaceansen
dc.subject.asfaautotomyen
dc.subject.asfahatchingen
dc.subject.asfamangrovesen
dc.subject.asfatemperature effectsen
dc.identifier.essn1365-2109
dc.identifier.doi10.1111/are.14257
dc.subject.scientificNameScylla serrataen


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    These papers were contributed by AQD staff to various national and international journals

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