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dc.contributor.authorAya, Frolan
dc.contributor.authorGarcia, Luis Maria
dc.date.accessioned2017-09-12T07:48:06Z
dc.date.available2017-09-12T07:48:06Z
dc.date.issued2016
dc.identifier.citationAya, F. A., & Garcia, L. M. B. (2016). Growth response of cultured larvae of silver therapon Leiopotherapon plumbeus (Kner, 1864) in outdoor tanks in relation to fertilizer type and fish density. Journal of Applied Ichthyology, 32(6), 1186-1193.en
dc.identifier.issn0175-8659
dc.identifier.urihttp://hdl.handle.net/10862/3221
dc.description.abstractThis study evaluated the effects of fertilizer type and fish density on early growth and survival of silver therapon Leiopotherapon plumbeus (Kner, 1864) larvae reared in outdoor tanks. In the first experiment, larvae (1.92 ± 0.09 mm total length) were stocked into nine, 4 m3 tanks at an initial density of 0.5 larvae L-1 and reared for 42 days at an ambient temperature of 28.8–30.7°C. Three treatments with three replicates each were compared: organic (chicken manure, OF) or inorganic fertilizers (ammonium phosphate, IF) applied once every 2 weeks, and the unfertilized (NF) tanks serving as the control group. Water quality, zooplankton densities, survival or growth of L. plumbeus larvae did not vary significantly in either fertilized or unfertilized tanks. Fertilization resulted in elevated nutrient concentrations, which did affect survival (2.10%–6.07%) of the fish larvae. In the second experiment, larvae were stocked at densities of 0.4 or 0.6 larvae L-1 in tanks fertilized at 4–5 days interval with OF and IF for 30 days. Growth performance of L. plumbeus larvae was affected by fish density, with significantly larger (20.04 ± 2.65 mm in total length) and higher specific growth rate (SGR; 6.97 ± 0.48% day-1) at 0.4 larvae L-1 than at 0.6 L-1. Fry production did not vary significantly between fish density treatment groups given the same fertilizer types, but survival rates were improved at 0.4 L-1. Together, production of L. plumbeus larvae in outdoor tanks can be optimized at a lower stocking density, regardless of the type of fertilizer used.en
dc.description.sponsorshipThis study was funded by SEAFDEC Aquaculture Department under Study Code Nr-01-F2013B. The authors thank Messrs. M.N. Corpuz and N.B. Olorvida for their technical assistance.en
dc.language.isoenen
dc.publisherWileyen
dc.subjectagrochemicalsen
dc.subjectammoniumen
dc.subjectAmbient temperatureen
dc.subjectNutrient concentrationsen
dc.subjectAbove ground tanksen
dc.subjectwater tanksen
dc.titleGrowth response of cultured larvae of silver therapon Leiopotherapon plumbeus (Kner, 1864) in outdoor tanks in relation to fertilizer type and fish densityen
dc.typeArticleen
dc.identifier.doi10.1111/jai.13138
dc.citation.volume32
dc.citation.issue6
dc.citation.spage1186
dc.citation.epage1193
dc.citation.journalTitleJournal of Applied Ichthyologyen
dc.subject.asfagrowth rateen
dc.subject.asfafishen
dc.subject.asfaammonium compoundsen
dc.subject.asfasurvivalen
dc.subject.asfagrowthen
dc.subject.asfafertilizationen
dc.subject.asfadensityen
dc.subject.asfalarvaeen
dc.subject.asfazooplanktonen
dc.subject.asfaphosphatesen
dc.subject.asfafertilizersen
dc.subject.asfatanksen
dc.subject.asfaorganic wastesen
dc.subject.asfafryen
dc.subject.asfawater qualityen
dc.subject.asfatemperature effectsen
dc.subject.asfafish larvaeen
dc.subject.asfamineral nutrientsen
dc.subject.asfastocking densityen
dc.identifier.essn1439-0426


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  • Journal Articles [1213]
    These papers were contributed by Department staff to various national and international journals.

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