Length-weight relationship of trahira Hoplias aff. malabaricus (Bloch, 1794) in a regulated stream of southern Brazil

This paper presents an allometric study of the length-weight relationship of Hoplias aff. malabaricus collected in the Chasqueiro Reservoir and Stream in southern Brazil. During the study, 112 specimens were collected with total lengths ranging from 124 to 386 mm. The estimated parameters of the length-weight model were statistically significant and showed positive allometric growth for this species.