Length-Weight relationships of six indigenous fish species from the river Cauvery and its estuary, India

Roshith, C M and Manna, R K and Suresh, V V R and Baitha, Raju and Koushlesh, Satish Kumar and Sibinamol, S and Kumar, Lohith and Sharma, S K and Chowdhury, Ashis Roy and Vijayakumar, E M and Pal, Rakesh and Das, B K (2021) Length-Weight relationships of six indigenous fish species from the river Cauvery and its estuary, India. Journal of Applied Ichthyology, 37 (5). pp. 795-798. ISSN 1439-0426

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Abstract

The present study estimated length–weight relationships (LWRs) for six indigenous fish species (Barilius gatensis, Salmostoma acinaces, S. boopis, Puntius amphibius, Hemibagrus punctatus and Ambassis miops) based on specimens collected from River Cauvery (including estuary) during July 2017–January 2020. The sampling surveys were carried out in three distinct sampling seasons, viz., the pre‐monsoon (March–May), the monsoon (July–October) and the post‐monsoon (November–February). Majority of the fish specimens dealt in the study were collected from multi‐meshed monofilament gill nets (mesh sizes 18, 30, 45, 60, 90, 110, 120 and 150 mm) operated by local fishers. For those sites situated in the protected areas, sampling was carried out by cast nets with prior permission from the local administration and the collected fishes were released back into river after length–weight measurements. The length measurements were noted as total length (TL) measured to the nearest 0.1 cm by using a digital Vernier caliper. A digital balance was used for weight measurements with an accuracy of 0.01 g. The study recorded a new maximum length of 48 cm for H. punctatus. The LWR data generated from the present study are significant for proper assessment of the stock status and their management, if collected together with other essential biological and physical parameters.

Item Type: Article
Uncontrolled Keywords: Cauvery River, indigenous fishes, Western Ghats
Subjects: Aquaculture > Tropical fish
Fish and Fisheries > Fish biology
Divisions: CMFRI-Kochi > Mariculture
Subject Area > CMFRI > CMFRI-Kochi > Mariculture
CMFRI-Kochi > Mariculture
Subject Area > CMFRI-Kochi > Mariculture
Depositing User: Arun Surendran
Date Deposited: 02 Nov 2021 06:47
Last Modified: 02 Nov 2021 06:47
URI: http://eprints.cmfri.org.in/id/eprint/15453

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