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Transition from endogenous to exogenous nutrition sources in larval rabbitfish Siganus guttatus
dc.contributor.author | Kohno, Hiroshi | |
dc.contributor.author | Hara, Shiro | |
dc.contributor.author | Duray, Marietta | |
dc.contributor.author | Gallego, Amalia | |
dc.date.accessioned | 2013-01-11T09:38:02Z | |
dc.date.available | 2013-01-11T09:38:02Z | |
dc.date.issued | 1988 | |
dc.identifier.citation | Kohno, H., Hara, S., Duray, M., & Gallego, A. (1988). Transition from endogenous to exogenous nutrition sources in larval rabbitfish Siganus guttatus. Nippon Suisan Gakkaishi, 54(7), 1083-1091. | en |
dc.identifier.issn | 0021-5392 | |
dc.identifier.uri | http://hdl.handle.net/10862/1285 | |
dc.description | Contribution No. 257 of the SEAFDEC Aquaculture Department. | en |
dc.description.abstract | The early larval development of Siganus guttatus was studied with emphasis on the transition from endogenous to exogenous feeding. Three rearing trials were conducted as follows: 1) rearing in a 5 ton concrete tank at 27.9-29.3oC (T-85 trial); 2) rearing in a 0.5 ton fiberglass tank at 22.2-26.5oC (T-86A trial); 3) rearing in the same manner as in T-86A but without food (T-86B trial). On the basis of the developmental events and energy flow in T-86A trial, the early life history of the species could be divided into the following seven phases: 1) rapid larval growth due to rapid yolk resorption (from hatching to about 15 h after hatching (time after hatching: TAH)); 2) slow growth and organogenesis based mainly on yolk energy (to about 50 h TAH); 3) slow growth based on energy of yolk, oil globule and exogenous food (to about 50 h TAH); 4) slow growth based on two sources of energy, oil globule and exogenous food (to about 90 h TAH); 5) the same mode of development and energy flow as in the preceding phase, but with a certain level of feeding amount (to about 120 h TAH); 6) accelerated larval growth and effective feeding and swimming based only on exogenous food (to about 150 h TAH); and 7) the same mode as in the preceding phase with accelerated increase of feeding amount (beyond 150 h TAH). Differences in developmental mode were observed in T-85 and T-86A trials, but it could not be ascertained in this particular study which of the environment factors played the greatest influence. The results of T-86A and B showed that the larvae, in order to survive, have to get over two obstacles on feeding, that is, to start feeding and to change from endogenous to exogenous feeding suitably. | en |
dc.language.iso | en | en |
dc.publisher | Japanese Society of Fisheries Science | en |
dc.subject | Siganus guttatus | en |
dc.title | Transition from endogenous to exogenous nutrition sources in larval rabbitfish Siganus guttatus | en |
dc.type | Article | en |
dc.citation.volume | 54 | |
dc.citation.issue | 7 | |
dc.citation.spage | 1083 | |
dc.citation.epage | 1091 | |
dc.citation.journalTitle | Nippon Suisan Gakkaishi | en |
seafdecaqd.library.callnumber | VF SJ 0232 | |
seafdecaqd.databank.controlnumber | 1988-19 | |
dc.subject.asfa | animal nutrition | en |
dc.subject.asfa | fish larvae | en |
dc.subject.asfa | larval stage | en |
dc.subject.asfa | feeding behaviour | en |
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Journal Articles [1222]
These papers were contributed by Department staff to various national and international journals.