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Length–weight relationship of three annual fishes (Rivulidae) from temporary freshwater wetlands of southern Brazil
Author(s) -
Volcan M. V.,
Gonçalves Â. C.,
Guadagnin D. L.
Publication year - 2013
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.12214
Subject(s) - biology , threatened species , wetland , habitat , ecology , fishery
Summary The present study describes length‐weight relationships ( LWR s) of three species of the family Rivulidae, Austrolebias nigrofasciatus , Austrolebias wolterstorffi and Cynopoecilus melanotaenia , captured in temporary freshwater wetlands of southern Rio Grande do Sul, Brazil from May to December 2011. The growth pattern for both species was predicted using a linear regression of LWR . Estimates of parameter b ranged from 2.81 in male C. melanotaenia to 3.34 for females A. nigrofasciatus . The present observations are significant for conservation and management because these species are threatened and their habitats are under pressure.

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