Acessibilidade / Reportar erro

Relação peso / comprimento e fator de condição de Macrodon ancylodon (Bloch & Schneider, 1801) capturada nas costas do Rio Grande do Sul (Latitude 29ºS a 32ºS )

Resumo

This paper deal with the length-weight relationship and the condition factor of Macrodon ancylodon caught by trawls along the southern coast of Brazil (29ºS to 32ºS], from September/1976 to August/1977. The total length (cm) was correlated with the weight (g), by means of the expression W = aLb, adjusted by least square method, after a logarithmic transformation. We can observe three periods concerned length-weight relationship: (1) October, November, December and January, with highest weights values; (2) February, March, April and May, with smallest weights values; and (3) June, July, August and September, with intermediary weights between the other periods. We did'nt observe considerable differences between males and females. The condition factor increase with the length increment. The highest condition factor values were observed in November and the smallest in April.


ARTIGOS

Relação peso / comprimento e fator de condição de Macrodon ancylodon (Bloch & Schneider, 1801) capturada nas costas do Rio Grande do Sul (Latitude 29ºS a 32ºS)

Ilidia da Ascenção Garrido Martins Juras* * Bolsista da F APESP.

Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brasil

SYNOPSIS

This paper deal with the length-weight relationship and the condition factor of Macrodon ancylodon caught by trawls along the southern coast of Brazil (29ºS to 32ºS], from September/1976 to August/1977. The total length (cm) was correlated with the weight (g), by means of the expression W = aLb, adjusted by least square method, after a logarithmic transformation. We can observe three periods concerned length-weight relationship: (1) October, November, December and January, with highest weights values; (2) February, March, April and May, with smallest weights values; and (3) June, July, August and September, with intermediary weights between the other periods. We did'nt observe considerable differences between males and females. The condition factor increase with the length increment. The highest condition factor values were observed in November and the smallest in April.

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

Bibliografia

  • CLARK. F.N. 1928. The weight-length relationship of the California sardine (Sardina caerulea) at San Pedro. Fish Bull. Calif., (12):5-58.
  • LE CREN, E. D. 1951. The length-weight relationship and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). J. Anim. Ecol., 20(2):201-219.
  • YAMAGUTI, N. 1967. Desova da pescada-toguete, Macrodon ancylodon. Bolm Inst. oceanogr., S. Paulo, 16(1):101-106.
  • ______ 1971 . Diferenciação geográfica de Macrodon ancylodon (Bloch & Schneider, 1801) na costa brasileira, entre as latitudes 18ş36'S (Conceição da Barra, ES) e 32ş10'S (Barra do Rio Grande, RS). Tese de Doutorado. Univeridade de São Paulo, Instituto de Biociências.
  • ______ & SANTOS, E.P. dos 1966. Crescimento da pescada-foguete, Macrodon ancylodon: aspecto quantitativo. Bolm Inst. oceanogr., S Paulo, 15(1):75-78.
  • *
    Bolsista da F APESP.
  • Datas de Publicação

    • Publicação nesta coleção
      06 Jun 2012
    • Data do Fascículo
      1980
    Instituto Oceanográfico da Universidade de São Paulo Praça do Oceanográfico, 191, 05508-120 São Paulo SP Brasil, Tel.: (55 11) 3091 6513, Fax: (55 11) 3032 3092 - São Paulo - SP - Brazil
    E-mail: amspires@usp.br