Fecundidad parcial y frecuencia reproductiva del efectivo patagónico de merluza (Merluccius hubbsi)

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dc.bibliographicCitation.endpage13
dc.bibliographicCitation.stpage1
dc.bibliographicCitation.titleINIDEP informe técnicoes
dc.bibliographicCitation.volume58
dc.contributor.authorPájaro, Marcelo
dc.contributor.authorMacchi, Gustavo J.
dc.contributor.authorEhrlich, Martín D.
dc.coverage.spatialArgentina, Patagonia
dc.date.accessioned2014-09-30T15:40:20Z
dc.date.available2014-09-30T15:40:20Z
dc.date.issued2006
dc.description.abstractBatch fecundity and spawning frequency of Argentine hake inhabiting Patagonian waters south of 41° S were estimated using monthly samples collected during the December 2000-March 2001 reproductive season and at the end of the March 2002 spawning period. Batch fecundity was fitted to a power function of total length and a linear function of ovary-free female weight with values ranging between 100,000 (32 cm total length) and 2,300,000 (87 cm total length) hydrated oocytes. Batch and relative fecundity showed variations during the spawning season with a marked decrease towards the end of the reproductive period (March). The spawning frequency, which ranged between 0.10 and 0.15, was estimated from the proportion of females with day-1 postovulatory follicles and was higher during the spawning peak (January-February). At these frequencies, a female hake would spawn, on average, 14 times between December and March. Both, batch fecundity and spawning frequency showed higher variability within the same reproductive season than between yearsen
dc.description.statusPublisheden
dc.format.extent425506 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationINIDEP informe técnico, 58. p. 1-13
dc.identifier.issn0327-9642
dc.identifier.urihttps://marabierto.inidep.edu.ar/handle/inidep/173
dc.language.isoes
dc.publisherMar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
dc.rightsPublisher permission
dc.subject.agrovocOvariesen
dc.subject.asfaSpawning seasonsen
dc.subject.asfaOvariesen
dc.subject.asfaHake fisheriesen
dc.titleFecundidad parcial y frecuencia reproductiva del efectivo patagónico de merluza (Merluccius hubbsi)es
dc.title.alternativeBatch fecundity and spawning frequency of the Argentine hake (Merluccius hubbsi) Patagonian stocken
dc.typeJournal Contribution
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INIDEP Informe Técnico Nro 58 (2006)