Length-weight relationship of 73 fish species caught in the southeastern inner continental shelf region of Brazil

• Autores: June F. Dias, Wellington S. Fernandez, Thassya C.S. Schmidt
• Localización: Latin American Journal of Aquatic Research, ISSN-e 0718-560X, ISSN 0716-1069, Vol. 42, Nº. 1, 2014, págs. 127-136
• Idioma: inglés
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• Resumen

  • The a and b parameters of the length-weight relationship (LWR) of the form W=aLb were estimated for 71 species of Actinopterygii and 2 Elasmobranchii, caught in the coastal region and inner shelf of southeastern Brazil. Estimates of b varied from 2.151 to 3.882. For the first time LWR for eight fish species is reported. Significant differences were observed among b values obtained for the same species caught in different ecosystems. Moreover, significant different results for b were observed among species caught in different ecosystems and between sexes of 12 species. Therefore, in order to obtain a reliable biomass estimate it is necessary to choose LWR data close in time and region with estimates for each sex.