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	Provedor de dados Iheringia, Sér. Zool. (2) Autor Francisco,Talitha M. (2) Gomes,Luiz C. (2) Okada,Edson K. (2) Zuliani,Marina S. (2) Ambrosio,Angela M. (1) Ambrósio,Angela Maria (1) Balbi,Thiago J. (1) Balbi,Thiago José (1) Mais... Palavra-chave Ford-Walford (2) Growth rings (2) Von Bertalanffy model (2) Pectoral fins (1) Scales (1) Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2011 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Aging and growth parameter from the Piaractus mesopotamicus (pacu) from the Cuiabá river, Mato Grosso, Brazil Iheringia, Sér. Zool. Ambrosio,Angela M.; Balbi,Thiago J.; Francisco,Talitha M.; Gomes,Luiz C.; Zuliani,Marina S.; Okada,Edson K.. This study has aims to determine the age and to estimate the growth parameters using scales of the species. Individuals of Piaractus mesopotamicus (Holmberg, 1887) used in this study were captured in the commercial fishery conducted in the region, along the year 2006. The model selected to express the growth of the species was the von Bertalanffy Sl= Sl∞*[1-exp-k(t-to)]. To determine if scales are suitable for studying the growth of pacu, we analyzed the relation between standard length (Sl) and the radius of the scales through linear regression. The period of annuli formation was determined analyzing the variations in the marginal increment and evaluating the consistency of the readings through the analysis of the coefficient of variations (CVs) for the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth rings; Scales; Von Bertalanffy model; Ford-Walford. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000400004 Age and growth parameters of cachara Pseudoplastystoma reticulatum (Siluriformes, Pimelodidae) from the Cuiabá River, Brazil Iheringia, Sér. Zool. Francisco,Talitha M.; Ambrósio,Angela Maria; Balbi,Thiago José; Zuliani,Marina S.; Okada,Edson K.; Gomes,Luiz C.. Age and growth parameters of cachara Pseudoplatystoma reticulatum (Eigenmann & Eigenmann, 1889) (Siluriformes, Pimelodidae) (males and females) were estimated through the analysis of growth rings in spines of pectoral fins. Fish were collected from January to December 2007, in the area directly influenced by the Aproveitamento Múltiplo de Manso (APM Manso) and in the Cuiabá River (upper parts of the Pantanal). The maximum number of growth rings was seven for males, and eight, for females. The analysis of temporal variations in mean marginal increment showed that rings found in the spines were formed annually, in December. Growth rings were associated to spawning (in the study region from November to March) of the species. The growth curve in length... Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth rings; Pectoral fins; Von Bertalanffy model; Ford-Walford. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212011000300004 Registros recuperados: 2 Primeira ... 1 ... Última

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