Ajay Valiyaveettil Salimkumar*¹, Sreekanth GB², Adarsh Jayanth AB³, Adarsh K³, Aloysius Amal Andrews³, Bandy Sumanth Kumar Reddy³, Abhiram A³ and Dheeran P⁴

¹Department of Marine Environment and Resources, University of Bordeaux, France
²Department of Fisheries Resource Management, ICAR-Central Coastal Agricultural Research Institute, Old Goa, Goa, India
³Department of Fisheries Science, Kerala University of Fisheries and Ocean Studies, Panangad, Kerala, India
⁴Department of Aquaculture, ICAR-Central Institute of Fisheries Education (Deemed University)Panch Marg, Off Yari Road, Versova, Andheri (W), Mumbai-400061, India

*Corresponding Author: Ajay Valiyaveettil Salimkumar, Department of Marine Environment and Resources, University of Bordeaux, France.

Received: May 24, 2022; Published: June 30, 2022

Abstract

Vembanad lake is the second largest brackish water lake in India and is known for its rich biodiversity. The study investigates the fish diversity, stake net fishing and seasonal variation in species distribution along the Puthenvelikkara backwaters of Vembanad Lake. A total of 30 sampling events using different gears were made during the period from January 2020 to February 2021. Total 2301 individuals were encountered, comprising 54 finfish species and 7 shellfish species from 34 families, 13 orders and 50 genera. Fish abundance peaked during pre-monsoon season, and the lowest were recorded in post monsoon season. Mugil cephalus, Penaeus indicus, Etroplus maculatus, Etroplus suratensis, Stolephorus indicus, and Ambassis ambassis were found to be the dominant species in the catch. Stake nets are predominantly utilized to target prawns, which waft with the tides. The Gross Energy Requirement (GER) was calculated to be 5.19 GJ.t fish^-1, which is surprisingly excessive for a stationary passively operated gear. The obtained energy efficiency ratio was 0.65, while the energy intensity value was 1.54. The high value of GER of this passively operated, non-motorized gear system is due to the low magnitude of landing by the gears.

Keywords: Fish Composition; Stake Net Fishing; Energy Analysis; Puthenvelikkara

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Citation

Citation: Ajay Valiyaveettil Salimkumar., et al. “Fish Composition and Efficiency of Stake Nets in Puthenvelikkara Backwaters of Vembanad Lake, Kerala, India". Acta Scientific Veterinary Sciences 4.7 (2022): 182-189.

Copyright

Copyright: © 2022 Ajay Valiyaveettil Salimkumar., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.