Spawning Potential Ratio of Feather Back (Chitala Lopis) at Kampar River, Riau

Andri Warsa,Endi Setiadi Kartamihardja,Arif Wibowo

doi:10.20884/1.oa.2018.14.3.548

Andri Warsa, Endi Setiadi Kartamihardja + Show 1 more

Open Access

https://doi.org/10.20884/1.oa.2018.14.3.548

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Abstract

The feather back, Chitala lopis is an important economic fish, inhabit Kampar River and its population tend to decrease so that management and conservation efforts should be conducted. Limited data of the feather back is one of the problems in formulating the management of the population. Spawning potential ratio (SPR) approach is an option being used in the management of the fish stock in the poor data. The study aimed to analysis spawning potential ratio of the feather back in Kampar River, Riau. The research has been conducted in May, August and October 2016. The total length at first capture (Lc) of feather back was less than the total length at first maturity (Lm) with the SPR value of 5 %. This condition could impact to decreasing the feather back stock. The SPR value should increased more than 20 % so the feather back population would been stable. Regulation of the fisheries was mainly limited mesh size of the gillnet operated should be applied.

Highlights

Kampar River have a huge diversity of fish species, of which 58 species are found in Kampar Kanan (Fithra & Siregar, 2010) and 86 species are found in Kampar Kiri River (Simanjuntak et al, 2006)
The results of this study indicate that length at first maturity (Lm) in this research was smaller when it compared with Subagja et al (2010) namely 68.4-82.5 cm with an average of 75.6 cm
The dominance of total length feather back was captured smaller than the length at first mature with Spawning potential ratio (SPR) value was 5%

Summary

Introduction

Kampar River have a huge diversity of fish species, of which 58 species are found in Kampar Kanan (Fithra & Siregar, 2010) and 86 species are found in Kampar Kiri River (Simanjuntak et al, 2006). The distribution of this species include Borneo, Java and Sumatera (Haryono, 2008). For the optimize and sustainable of harvest it need conservation and management for this species This objectives of fish resource management is to optimize the production of harvest while maintaining the sustainability of resources, without over exploitation, and maintaining of stock health and improving stocks condition (Cope & Punt, 2009)

Objectives

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Conclusion