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Gastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions

1996-06Journal article Restricted access
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dc.contributor.authorAndrade, José Pedro
dc.contributor.authorErzini, Karim
dc.contributor.authorPalma, Jorge
dc.date.accessioned2016-12-23T11:18:17Z
dc.date.available2016-12-23T11:18:17Z
dc.date.issued1996-06
dc.description.abstractGastric evacuation rates of the gilthead sea bream, Sparus aurata, fed with commercial pelleted food and polychaetes (Nereis diversicolor) were determined under experimental conditions. The estimated gastric evacuation rate for pelleted food was 7.97% h(-1), with a total time of digestion of approximately 9 h. The respective values for the natural food were 6.24% h(-1), with a total digestion time of approximately 12 h. The daily consumption of fish reared in earth ponds in a semi-intensive aquaculture facility was estimated through 24h cycles performed between April and August. The daily consumption varied from 18.58 to 31.98 mg g(-1). There was a constant increase in the average daily consumption per individual of 1.8-4.6 g (dry weight). During these cycles, samples of stomachs were taken and the contents preserved for further observation. The feeding behaviour of the reared fish was compared with a fish sample caught in the Ria Formosa lagoon. No common species were found between samples. A total of 38 prey were identified, which suggests that the gilthead sea bream is a non-specific predator. Despite the high abundance of natural prey in the ponds, the dependence of sea bream on pelleted food was high.
dc.identifier.doi10.1007/BF00140594
dc.identifier.issn0967-6120
dc.identifier.otherAUT: KER00534; JAN00399;
dc.identifier.urihttp://hdl.handle.net/10400.1/8883
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Verlag
dc.relation.isbasedonWOS:A1996VU01800004
dc.subjectDaily food consumption
dc.subjectGastric evacuation
dc.subjectSea bream (Sparus aurata)
dc.subjectStomach contents
dc.titleGastric evacuation and feeding in the gilthead sea bream reared under semi-intensive conditions
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage141
oaire.citation.issue2
oaire.citation.startPage129
oaire.citation.titleAquaculture International
oaire.citation.volume4
person.familyNameAndrade
person.familyNameErzini
person.familyNamePalma
person.givenNameJose
person.givenNameKarim
person.givenNameJorge
person.identifier.ciencia-idD514-1A21-F020
person.identifier.ciencia-idD917-7133-341A
person.identifier.ciencia-idCA1D-2BD3-AE28
person.identifier.orcid0000-0002-5482-9776
person.identifier.orcid0000-0002-1411-0126
person.identifier.orcid0000-0002-5790-3433
person.identifier.ridM-5216-2013
person.identifier.scopus-author-id7201722097
person.identifier.scopus-author-id7004015948
person.identifier.scopus-author-id7101903881
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication8f1ffbdc-85aa-4342-8bd8-61eb6d6be74e
relation.isAuthorOfPublicatione20f0e2d-3085-4c37-9e98-260dc9faddea
relation.isAuthorOfPublication2b09799d-66a7-42b1-9641-1781e00fa9ab
relation.isAuthorOfPublication.latestForDiscovery8f1ffbdc-85aa-4342-8bd8-61eb6d6be74e

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