Stable isotope analysis of the contribution of microalgal diets to the growth and rurvival of pacific oyster crassostrea gigas (Thunberg, 1979) larvae

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dc.contributor.authorLiu, Aen_AU
dc.contributor.authorMazumder, Den_AU
dc.contributor.authorDove, MCen_AU
dc.contributor.authorLai, TSen_AU
dc.contributor.authorCrawford, Jen_AU
dc.contributor.authorSammut, Jen_AU
dc.date.accessioned2016-06-07T03:03:29Zen_AU
dc.date.available2016-06-07T03:03:29Zen_AU
dc.date.issued2016-01-01en_AU
dc.date.statistics2016-06-07en_AU
dc.description.abstractStable carbon and nitrogen isotope analyses were used to evaluate the influence of microalgal diet on growth and survival of hatchery-reared Pacific oysterCrassostrea gigas larvae.D-veliger larvae were fedmonospecific diets of Pavlova lutheri (P), Tahitian Isochrysis aff. galbana (T), and Chaetoceros calcitrans (C), and a standard hatchery trispecific diet of 25P:25T:50C (PTC). The dietary effects on nutrient assimilation, isotopic turnover rates, and discrimination factors were assessed using exponential models. Of the four dietary treatments evaluated over the 15-day feeding trial, larvae fed C. calcitrans and PTC had the best growth and high survival. Larvae in all dietary treatments had relatively high isotopic turnover rates (0.075–0.327/day), although some discrimination factors found in this study were out of the normal range for aquatic invertebrates (Δ13C: 0.4‰–4.1‰ and δ15N: 0.1‰–5.3‰). Overall, the turnover rates and discrimination factors for δ13C and δ15N indicated that C. gigas larvae assimilate C. calcitrans and PTC best under hatchery rearing conditions. The results demonstrated the application potential of stable isotope analysis to evaluate optimal diets and feeding regimes to enhance hatchery performance of bivalve larvae and postlarval stages.© 2016, BioOne.en_AU
dc.identifier.citationLiu, A., Mazumder, D., Dove, M. C., Lai, T. S., Crawford, J., & Sammut, J. (2016). Stable isotope analysis of the contribution of microalgal diets to the growth and rurvival of pacific oyster crassostrea gigas (Thunberg, 1979) larvae. Journal of Shellfish Research, 35(1), 63-69. doi:10.2983/035.035.0108en_AU
dc.identifier.govdoc6650en_AU
dc.identifier.issn0730-8000en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Shellfish Researchen_AU
dc.identifier.pagination63-69en_AU
dc.identifier.urihttp://dx.doi.org/10.2983/035.035.0108en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6924en_AU
dc.identifier.volume35en_AU
dc.language.isoenen_AU
dc.publisherBioOneen_AU
dc.subjectStable isotopesen_AU
dc.subjectDieten_AU
dc.subjectOystersen_AU
dc.subjectLarvaeen_AU
dc.subjectNitrogenen_AU
dc.subjectCalcinationen_AU
dc.titleStable isotope analysis of the contribution of microalgal diets to the growth and rurvival of pacific oyster crassostrea gigas (Thunberg, 1979) larvaeen_AU
dc.typeJournal Articleen_AU
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