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dc.contributor.authorRichter, H.
dc.contributor.authorFocken, U.
dc.contributor.authorBecker, K.
dc.contributor.authorSantiago, C. B.
dc.contributor.authorAfuang, W. B.
dc.identifier.citationRichter, H., Focken, U., Becker, K., Santiago, C. B., & Afuang, W. B. (1999). Analysing the diel feeding patterns and daily ration of Nile tilapia, Oreochromis niloticus (L.), in Laguna de Bay, Philippines. Journal of Applied Ichthyology, 15(6), 165-170.en
dc.description.abstractCage cultured Nile tilapia, Oreochromis niloticus, were sampled at a commercial set-up on two occasions in 1995 in Laguna de Bay, Philippines, each time over a 24 h cycle. The stomach content weights were averaged for each subsample and analysed with the computer model MAXIMS. The model predicted that, in May, larger fish (mean total weight: 31.5 g) feeding on natural food alone fed continuously from dawn to dusk, ingesting 5.1 % body mass equivalent (% BME, wet weight basis) whereas smaller fish (mean total weight: 9.8 g) had two feeding periods per day, from sunrise to mid-morning and again from mid-afternoon until after sunset, ingesting 13.7 % BME. In August, fish were given supplemental feed once daily at 07:00 h. These fish (mean total weight: 81.7 g) fed intensely until supplemental feed ran out before mid-day, after which some ingestion of natural food took place later in the day. The fish ingested 5.8 % BME supplemental feed and 5.1 % BME natural food per 24 h. In May, most of the stomach contents consisted of the blue-green alga Anabaena spiroides, whereas in August, the natural food was made up principally of detritus.en
dc.description.sponsorshipThis study was carried out as part of the STD-3 project 'Laguna de Bay, Philippines: An ecosystem approach to sustainable management' funded by the European Union (Contract No. CT94-0334).en
dc.subjectOreochromis niloticus
dc.titleAnalysing the diel feeding patterns and daily ration of Nile tilapia, Oreochromis niloticus (L.), in Laguna de Bay, Philippinesen
dc.citation.journalTitleJournal of Applied Ichthyologyen
seafdecaqd.library.callnumberVF SJ 0616
dc.subject.asfaCage cultureen
dc.subject.asfaLength-weight relationshipsen

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