Show simple item record

dc.contributor.authorAristizabal, E.O.
dc.date.accessioned2007-07-09T13:47:32Z
dc.date.available2007-07-09T13:47:32Z
dc.date.issued2006
dc.identifier.citationRevista de biología marina y oceanografía, 41(2). p. 209-220
dc.identifier.issn0717-3326
dc.identifier.urihttp://hdl.handle.net/1834/1557
dc.description.abstractKnowledge of the life history of fish larvae is of practical importance to understand variations in the survival rate not only for cultivated fish but also for fishery biology studies. With the aim of recognizing critical changes during the first days of life of red porgy larvae, the oxygen consumption, growth, and food utilization were studied. After hatching, the larvae were transferred to two 400 L fiberglass tanks with microalgae (Nannochloropsis oculata)and enriched rotifers (Brachionus plicatilis)as initial food. During the incubation and larval rearing, water temperature was kept at 18.0 ± 0.5ºC and salinity ranged from 33.0 to 34.0 psu. Results indicate a decrease in larval growth between day 3 and 4 after hatching, when larvae opened their mouths, began exogenous feeding and have almost exhausted their yolk sac and oil globule. At the end of this period, variations in the carbon and nitrogen content were also detected. Oxygen consumption showed an isometric mass-specific change with an inflexion at day 6 after hatching, which was coincident with the inflation of the gas bladder and the development of gills. The nitrogen coefficient (NQ)revealed a sudden change in the utilization of amino acids and lipids from endogenous reserves between the embryo and the newly hatched larvae. Hatching and first feeding time are two critical changing moments for the larval survival of this species.en
dc.format.extent361202 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoes
dc.publisherUniversidad de Valparaiso. Instituto de Oceanología
dc.relation.urihttp://www.revbiolmar.cl/abstract.asp?Resumen=100&Edicion=13
dc.rightsDOAJ
dc.titleConsumo de oxígeno, crecimiento y utilización del alimento durante el desarrollo larval del besugo Pagrus pagrus (Linné, 1758)(Pisces:Sparidae).es
dc.title.alternativeOxygen consumption, growth and food utilization during the larval development of red porgy Pagrus pagrus (Linné, 1758)(Pisces:Sparidae).en
dc.typeJournal Contribution
dc.bibliographicCitation.endpage220
dc.bibliographicCitation.issue2
dc.bibliographicCitation.stpage209
dc.bibliographicCitation.titleRevista de biología marina y oceanografíaes
dc.bibliographicCitation.volume41
dc.description.statusPublisheden
dc.description.otherSparidae, Pagrus pagrus, cultivo de peces, peces marinos, larvas de peces, metabolismo, consumo de oxígeno
dc.subject.agrovocFish cultureen
dc.subject.agrovocMetabolismen
dc.subject.agrovocFish larvaeen
dc.subject.agrovocOxygen consumptionen
dc.subject.asfaFish cultureen
dc.subject.asfaMarine fishen
dc.subject.asfaFish larvaeen
dc.subject.asfaMetabolismen
dc.subject.asfaOxygen consumptionen
refterms.dateFOA2021-01-30T18:47:50Z


Files in this item

Thumbnail
Name:
Contr1429.pdf
Size:
352.7Kb
Format:
PDF
Description:
Published version

This item appears in the following Collection(s)

Show simple item record