Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Neotropical Ichthyology (2) Autor Paesch,Laura (2) Norbis,Walter (1) Oddone,Maria Cristina (1) Oddone,María C. (1) Orlando,Luis (1) Pereyra,Inés (1) Silveira,Santiago (1) Mais... Palavra-chave Clasper (1) Embryo growth (1) Fishery-dependent samples (1) Matrotrophy (1) Narrownose smoothhound (1) Rajid (1) Reproduction (1) Reproductive mode (1) Size composition (1) Southwestern Atlantic (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2015 (1) 2008 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Change in size-at-maturity of the yellownose skate Dipturus chilensis (Guichenot, 1848) (Elasmobranchii: Rajidae) in the SW Atlantic Neotropical Ichthyology Paesch,Laura; Oddone,María C.. 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 Palavras-chave: Clasper; Fishery-dependent samples; Rajid; Reproduction; Size composition. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000200009 Determination of limited histotrophy as the reproductive mode in Mustelus schmitti Springer, 1939 (Chondrichthyes: Triakidae): analysis of intrauterine growth of embryos Neotropical Ichthyology Orlando,Luis; Pereyra,Inés; Silveira,Santiago; Paesch,Laura; Oddone,Maria Cristina; Norbis,Walter. ABSTRACT This work analyzed length-mass relationship, growth in length, mass variations and dynamic of yolk sac depletion of Mustelus schmitti embryos, extracted from females catched by the artisanal fishery acting off La Paloma (34°39'S, 54°10'W, Uruguay) during 2006 and 2007. Differences in total length and total mass between sexes were not significant. Embryos showed a negative allometric growth for both years with a slope change near the day 170 of the year, likely to be associated with the depletion of the external yolk sac. Gompertz and Von Bertalanffy curves were adjusted for each year. Parturition date was determined around the day 300 of the year. Yolk depletion followed a logistic dynamic Yt=1/(1+e(-13.749 + 0.072*t)) for 2006 and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Embryo growth; Matrotrophy; Narrownose smoothhound; Reproductive mode; Southwestern Atlantic. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400699 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco