Resumo
This paper aims at the determination of (1) period and area of spawning, (2) length and age at first spawning and (3) sex ratio of the 'pescada-foguete' (Macrodon ancylodon) from the southern coast of Brazil. The results obtained show that spawning occurs during October-May with a partial spawning in December and in March-April; the area of spawning was found to be between latitude 32ºS and longitude 51ºW and 52ºW. The first maturation occurs when the fish reach 25 cm long, being complete in about six months. The sex ratio found was 48% females for 52% males.
Desova da pescada-foguete, Macrodon ancylodon
N. Yamaguti
Instituto Oceanográfico da Universidade de São Paulo
SYNOPSIS
This paper aims at the determination of (1) period and area of spawning, (2) length and age at first spawning and (3) sex ratio of the 'pescada-foguete' (Macrodon ancylodon) from the southern coast of Brazil.
The results obtained show that spawning occurs during October-May with a partial spawning in December and in March-April; the area of spawning was found to be between latitude 32ºS and longitude 51ºW and 52ºW. The first maturation occurs when the fish reach 25 cm long, being complete in about six months. The sex ratio found was 48% females for 52% males.
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BIBLIOGRAFIA
(Recebido em 25/7/1967)
Publ. n.º 246 do Inst. Ocean. da USP.
- BÜCKMANN, A. 1929. Die Methodik fischereibiologischer Untersuchungen an Meeresfischen. Handb. biol. ArbMeth., Abt. 9. Teil 6, Heft 1, 194 p.
- LAEVASTU, T. 1965. Manual of methods in fisheries biology. Research on fish stocks, F.A.O. Manuals Fish. Sci., n.ş 1, fasc. 9, sect. 4, 51 p.
- LARA, F. J. S. 1951. A study of the life history of Macrodon ancylodon (Bloch & Schneider), a sciaenid fisch occurring on the coast of southern Brazil. Anais Acad. bras. Ciênc, vol. 23, n.ş 3, p. 291-322.
- PUYO, J. 1949. Poissons de la Guyane Française. Paris, Off. Rech. Sci. Outre-Mer, 280 p.
- SANTOS, E. P. dos & YAMAGUTI, N. 1965. Migração da pescada-foguete, Macrodon ancylodon. Bolm Inst. oceanogr., vol. 14, n.ş único, p. 115-124.
- VAZZOLER, A. E. A. de M. 1963. Sobre a fecundidade e a desova da pescada-foguete. Bolm Inst. oceanogr., vol. 13, n.ş 2, p. 33-40.
- YAMAGUTI, N. & SANTOS, E. P. dos 1966. Crescimento da pescada-foguete (Macrodon ancylodon): aspecto quantitativo. Bolm Inst. oceanogr., vol. 15, n.ş 1, p. 75-78.
Datas de Publicação
-
Publicação nesta coleção
14 Jun 2012 -
Data do Fascículo
1967
Histórico
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Recebido
25 Jul 1967
