Data/hora: 12/06/2024 14:53:58

Provedor de dados: | 83
País: | Brazil
Título: | Change in size-at-maturity of the yellownose skate Dipturus chilensis (Guichenot, 1848) (Elasmobranchii: Rajidae) in the SW Atlantic
Autores: | Paesch,Laura; Oddone,María C.
Data: | 2008-01-01
Ano: | 2008
Palavras-chave: | Clasper; Fishery-dependent samples; Rajid; Reproduction; Size composition.
Resumo: | A total of 3518 specimens (1607 males, 1911 females) of Dipturus chilensis were sampled. Males ranged from 44.0 to 99.0 cm and females from 45.0 to 110.0 cm. Total length composition of the grouped catches differed significantly among sexes, with females being larger than males. The sex ratio favored the females. The total length at which 50% of the specimens were retained by the gear was 69.0 cm for the males and 73.0 cm for the females. A sub-sample of 124 specimens (48 males, 76 females) was analyzed for reproductive assessment. For the males, size at 50% maturity was estimated at 78.5 cm, while for the females this parameter was estimated at 81.4 cm. Preliminary observations on the description of the egg capsules are also provided.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200009
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252008000200009
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.6 n.2 2008
Fonte: | info:eu-repo/semantics/openAccess