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dc.contributor.author
Macchi, Gustavo Javier
dc.contributor.author
Rodrigues, Karina Andrea
dc.contributor.author
Leonarduzzi, Ezequiel
dc.contributor.author
Diaz, Marina Vera
dc.date.available
2020-03-26T14:54:33Z
dc.date.issued
2018-08
dc.identifier.citation
Macchi, Gustavo Javier; Rodrigues, Karina Andrea; Leonarduzzi, Ezequiel; Diaz, Marina Vera; Is the spawning frequency of Argentine hake, Merluccius hubbsi, affected by maternal attributes or physical variables?; Elsevier Science; Fisheries Research; 204; 8-2018; 147-155
dc.identifier.issn
0165-7836
dc.identifier.uri
http://hdl.handle.net/11336/100891
dc.description.abstract
Spawning frequency (SF) is a parameter that represents the number of spawning events per time unit, used to estimate the reproductive potential of many fish populations. We analyzed the relationship between SF and size and age of Argentine hake females from the Patagonian stock. We also studied the influence of female nutritional condition and physical variables on spawning and estimated the monthly egg production in relation to size structure. Samples were collected during the spawning season between 2000 and 2014. This study revealed that the size and age of spawners had a positive effect on the SF of the stock. During the reproductive season this parameter ranged between 13 and 3 days for females within a total length (TL) interval of 35–80 cm. A positive relationship between the spawning activity and the water temperature was also observed, suggesting that this variable could has an influence on the growth and maturation of oocytes. Towards the end of the reproductive period SF was higher than at the beginning of the spawning, but batch fecundity was lower. This could be associated with the poor nutritional condition of females at the end of seasonal spawning. Our results reinforce the hypothesis of a significant maternal effect in Argentine hake, characterized by a higher reproductive output in larger females (>50 cm TL), which in general is not considered in the traditional stock assessment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
EGG PRODUCTION
dc.subject
FEMALE AGE
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FEMALE SIZE
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MERLUCCIUS HUBBSI
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SPAWNING FREQUENCY
dc.subject
TEMPERATURE
dc.subject.classification
Biología Reproductiva
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Is the spawning frequency of Argentine hake, Merluccius hubbsi, affected by maternal attributes or physical variables?
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-25T13:59:55Z
dc.journal.volume
204
dc.journal.pagination
147-155
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Macchi, Gustavo Javier. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Rodrigues, Karina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
dc.description.fil
Fil: Leonarduzzi, Ezequiel. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
dc.description.fil
Fil: Diaz, Marina Vera. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.journal.title
Fisheries Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0165783618300390
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.fishres.2018.02.011
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