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dc.contributor.authorAya, Frolan A.
dc.contributor.authorCorpuz, M. N. C.
dc.contributor.authorGarcia, L. M. B.
dc.date.accessioned2015-05-29T08:47:38Z
dc.date.available2015-05-29T08:47:38Z
dc.date.issued2015
dc.identifier.citationAya, F. A., Corpuz, M. N. C., & Garcia, L. M. B. (2015). Diet composition, feed preferences and mouth morphology of early stage silver therapon (Leiopotherapon plumbeus, Kner 1864) larvae reared in outdoor tanks. Journal of Applied Ichthyology, 31(1), 77-82.en
dc.identifier.issn0175-8659
dc.identifier.urihttp://hdl.handle.net/10862/2263
dc.description.abstractThis study examined the diet composition, feeding preferences, and mouth morphology of the silver therapon (Leiopotherapon plumbeus, Kner 1864) larvae under captive conditions. Larvae were reared in outdoor tanks (4 m3) with natural food grown 2 weeks prior to start of larval rearing. Food preference was measured by the Chesson's electivity index (αi). Gut content analysis of larvae sampled between 5 and 25 days after hatching (DAH) showed the dominance in the diet by zooplankton, mainly copepod nauplii, cladocerans and insect larvae. Small fish larvae (5–9 DAH; 3.32–6.29 mm standard length) preferred cladocerans, ciliates and copepod nauplii; whereas older larvae (12–25 DAH; 5.45–19.26 mm standard length) preferred insect larvae over cladocerans and adult insects. The mouth gape size at 5 DAH was 359 μm and increased to 3.75 mm at 40 DAH when body size grew at an average rate of 0.59 mm d−1. The standard length (SL) of L. plumbeus larvae was strongly associated with mouth size (r2 = 0.98, P < 0.05), indicating a progressive increase of ingested prey size of the fish larvae. These results clarified the early life feeding ecology of this species, which is essential in developing effective hatchery techniques.en
dc.description.sponsorshipThe study was funded by the SEAFDEC Aquaculture Department (Study Codes Nr-04-F2010B and Nr-01-F2013B) and UP Natural Sciences Research Institute (Project Codes BIO-09-2-06 and BIO-13-2-04).en
dc.language.isoenen
dc.publisherWileyen
dc.subjectLeiopotherapon plumbeus
dc.subjectCopepoda
dc.subjectLeiopotherapon
dc.subjectTherapon
dc.subjectCladocera
dc.titleDiet composition, feed preferences and mouth morphology of early stage silver therapon (Leiopotherapon plumbeus, Kner 1864) larvae reared in outdoor tanksen
dc.typeArticleen
dc.citation.volume31
dc.citation.issue1
dc.citation.spage77
dc.citation.epage82
dc.citation.journalTitleJournal of Applied Ichthyologyen
dc.subject.asfaPlankton surveysen
dc.subject.asfaAnimal morphologyen
dc.subject.asfaInsect larvaeen
dc.subject.asfaLengthen
dc.subject.asfaFood preferencesen
dc.subject.asfaBiometricsen
dc.subject.asfaNutritionen
dc.subject.asfaFish larvaeen
dc.subject.asfaProtistsen
dc.subject.asfaDietsen
dc.subject.asfaFeedingen
dc.subject.asfaZooplanktonen
dc.subject.asfaCiliatesen
dc.subject.asfaDominanceen
dc.subject.asfaHatcheriesen
dc.subject.asfaDigestive systemen
dc.subject.asfaBody sizeen
dc.subject.asfaMouthen
dc.subject.asfaHatchingen
dc.subject.asfaPredationen
dc.identifier.essn1439-0426
dc.identifier.doi10.1111/jai.12486


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

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