Maturation and growth curves of Macrobrachium Carcinus (Linnaeus) (Crustacea, Decapoda, Palaemonidae) from Ribeira de Iguape River, southern Brazil
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Data
1994-01-01
Autores
Valenti, Wagner Cotroni [UNESP]
Mello, Jeanette de T.C. de
Lobão, Vera L
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Zoologia
Resumo
In this paper, female Macrobrachium carcinus (Linnaeus, 1758) maturation curve, weight/length relationship, length and weight growth curves were studied. Prawns were captured, by traps, in Ribeira de Iguape river (24ºS and 47ºW), southern Brazil. There were used 207 females. It was observed that M. carcinus presents several spawnings during its life cycle and reproductive period goes on, at least till six years old. Weight/length relationship can be represented for the equation W = 8.73 E-3 L3.28. Expressions obtained for length and weight growth curves are Lt = 21 .0 (1-e-0493t) and Wt= 190 (1-e-0493t)3.28. respectively. A symptotic maximum length and asymptotic maximum weight are nearly attained at six and eight years old, respectively.
Descrição
Palavras-chave
Crustacea, Macrobrachium, maturation, growth, prawn
Como citar
Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 11, n. 4, p. 649-658, 1994.