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

Autor: June F Dias, Wellington S Fernandez, Thassya C.S. Schmidt
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2014
Předmět:
Zdroj: Latin American Journal of Aquatic Research, Vol 42, Iss 1, Pp 127-136 (2014)
Druh dokumentu: article
ISSN: 0718-560X
Popis: 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.
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