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dc.contributor.authorToledo, Joebert D.
dc.contributor.authorCaberoy, Nora B.
dc.contributor.authorQuinitio, Gerald F.
dc.contributor.authorChoresca, Casiano H.
dc.contributor.authorNakagawa, Heisuke
dc.date.accessioned2014-03-25T03:36:10Z
dc.date.available2014-03-25T03:36:10Z
dc.date.issued2002
dc.identifier.citationToledo, J. D., Caberoy, N. B., Quinitio, G. F., Choresca, C. H., & Nakagawa, H. (2002). Effects of salinity, aeration and light intensity on oil globule absorption, feeding incidence, growth and survival of early-stage grouper Epinephelus coioides larvae. Fisheries Science, 68(3), 478-483.en
dc.identifier.issn0919-9268
dc.identifier.urihttp://hdl.handle.net/10862/1949
dc.description.abstractA series of experiments were conducted to examine the effects of salinity, aeration and light intensity on oil globule absorption, feeding incidence, and growth and survival of early-stage Epinephelus coioides larvae. Newly hatched larvae were transferred to 40-L aquaria at a density of 1500 individuals/aquarium. Larvae were exposed to different levels of aeration (0 mL/min per L, 0.62 mL/min per L, 1.25 mL/min per L, 2.50 mL/min per L, or 3.75 mL/min per L); salinity (8 ppt, 16 ppt, 24 ppt, 32 ppt, or 40 ppt); and light intensity (0 lx, 120 lx, 230 lx, 500 lx, or 700 lx) for 4–6 days. Twenty larvae were sampled daily at 11:00 hours to measure for total length (TL), oil globule volume, and feeding incidence. Survival rates were determined by counting the total number of larvae remaining in each aquarium at the end of the experiment. Significantly higher survival rates (P < 0.05) were observed at aeration levels of 0.62 mL/min per L and 1.25 mL/min per L, at salinity levels of 16 ppt and 24 ppt, and at light intensities of 500 lx and 700 lx. The influence of aeration level, salinity and light intensity on oil globule absorption, feeding incidence, and growth and survival of early-stage grouper larvae are discussed.en
dc.description.sponsorshipThis study was financially supported by SEAFDEC/AQD (Nr-06-F99T) and the Australian Center for International Agricultural Research (FIS/97/73). JDT is grateful to the Japan Society for the Promotion of Science for being awarded a Ronpaku PhD scholarship grant on grouper seed production.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.subjectEpinephelus coioidesen
dc.subjectFeeding incidenceen
dc.subjectFirst-feedingen
dc.subjectGrouper larvaeen
dc.titleEffects of salinity, aeration and light intensity on oil globule absorption, feeding incidence, growth and survival of early-stage grouper Epinephelus coioides larvaeen
dc.typeArticleen
dc.citation.volume68
dc.citation.issue3
dc.citation.spage478
dc.citation.epage483
dc.citation.journalTitleFisheries Scienceen
dc.subject.asfaaerationen
dc.subject.asfalarvaeen
dc.subject.asfalight intensityen
dc.subject.asfapercoid fisheriesen
dc.subject.asfasalinityen
dc.subject.asfalighten
dc.identifier.essn1444-2906
dc.identifier.doi10.1046/j.1444-2906.2002.00451.x


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