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Effects of different illumination levels on zooplankton abundance, feeding periodicity, growth and survival of the Asian sea bass, Lates calcarifer (Bloch), fry in illuminated floating nursery cages
dc.contributor.author | Fermin, Armando C. | |
dc.contributor.author | Seronay, Glendell A. | |
dc.date.accessioned | 2013-04-15T09:00:19Z | |
dc.date.available | 2013-04-15T09:00:19Z | |
dc.date.issued | 1997 | |
dc.identifier.citation | Fermin, A. C., & Seronay, G. A. (1997). Effects of different illumination levels on zooplankton abundance, feeding periodicity, growth and survival of the Asian sea bass, Lates calcarifer (Bloch), fry in illuminated floating nursery cages. Aquaculture, 157(3–4), 227–237. | en |
dc.identifier.issn | 0044-8486 | |
dc.identifier.uri | http://hdl.handle.net/10862/1583 | |
dc.description.abstract | The effects of different illumination levels on Zooplankton abundance and feeding periodicity, growth and survival of hatchery-produced Asian sea bass, Lates calcarifer, fry in illuminated floating net cages were determined in a 35-day experiment. Zooplankton abundance (consisting mainly of copepods at 64–78% of total abundance in all cages) was highest in cages illuminated at 180 lx (mean: 124 individuals l−1) and at 300 lx (mean: 405 individuals l−1) and peaked at 0400. High prey densities subsequently resulted in increased fish feeding as evidenced by the greatest number of prey (mean: 416–462 individuals fish−1) found in their guts between 0400 and 0800. Feeding incidence (range: 84–89%) was generally higher among fish held in illuminated cages than those reared in dark cages (67%). Low feeding of fish held in dark cages eventually led to starvation and mass mortality. The present results indicate that a light intensity of at least 300 lx attracts the highest number of zooplankton and promotes the best weight specific growth rate (10% day−1) and survival (40%) in sea bass juveniles reared in illuminated nursery cages. | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.subject | sea bass | en |
dc.subject | Lates calcarifer | en |
dc.title | Effects of different illumination levels on zooplankton abundance, feeding periodicity, growth and survival of the Asian sea bass, Lates calcarifer (Bloch), fry in illuminated floating nursery cages | en |
dc.type | Article | en |
dc.identifier.doi | 10.1016/S0044-8486(97)00167-1 | |
dc.citation.volume | 157 | |
dc.citation.issue | 3-4 | |
dc.citation.spage | 227 | |
dc.citation.epage | 237 | |
dc.citation.journalTitle | Aquaculture | en |
seafdecaqd.library.callnumber | VF SJ 0536 | |
seafdecaqd.databank.controlnumber | 1997-21 | |
dc.subject.asfa | cage culture | en |
dc.subject.asfa | feeding | en |
dc.subject.asfa | feeding behaviour | en |
dc.subject.asfa | fish culture | en |
dc.subject.asfa | light effects | en |
dc.subject.asfa | rearing techniques | en |
dc.subject.asfa | survival | en |
dc.subject.asfa | zooplankton | en |
dc.subject.asfa | growth | en |
dc.subject.scientificName | Lates calcarifer | en |
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Journal Articles [1215]
These papers were contributed by Department staff to various national and international journals.