Length-weight relationships and growth parameters of five freshwater fishes in Raban Lake, Perak, Malaysia

Abstract

This study describes the Length-Weight relationships and growth parameters of five dominant freshwater fishes in Raban Lake, Perak, Malaysia; bonylip barb (Osteochillus vittatus), tinfoil barb (Barbonymus schwanenfeldii), tiny scale barb (Thynnichthys thynnoides), crossbanded barb (Puntioplites bulu) and Indonesian leaffish (Pristolepis grootii). In this study, LWRs were estimated according to the power function W = aLb , while the number of opaque zones in the sectioned otolith were counted for age determination for further estimation of the von Bertalanffy growth parameters. A total of 318 individual was collected in August and October 2018 and January 2019. The LWRs reveals four species with the exception of crossbanded barb, displays negative allometric growth pattern. Growth coefficient ranged from 0.28 to 0.70, shows that these species are slow to medium growth species. The findings from this study help in understanding the ecological health of five dominant and data deficient freshwater fishes in Raban Lake, Malaysia.

Keywords

• fisheries management
• fish population dynamics
• freshwater fishes
• raban lake