Energy Analysis of Traditional Non-motorised Gill Net Operations, in Vembanad Lake, Kerala, India

Boopendranath M R.; Shahul Hameed M.

doi:10.56093/ft.v46i1.16276

Authors

Boopendranath M R. Central Institute of Fisheries Technology, P.O. Matsyapuri, Cochin - 682 029, India
Shahul Hameed M. School of Industrial Fisheries, Cochin University of Science and Technology, Cochin - 682 016, India

https://doi.org/10.56093/ft.v46i1.16276

Keywords:

Gill netting, Fish production, Gross Energy Requirement, Vembanad lake

Abstract

Fish production and energy requirement in the traditional non-motorised gill netoperations, in Vembanadu Lake, Kerala, India are discussed in this paper. Gillnetting istargeted at mullets and other estuarine resources and is operated from traditional two-mencanoes of 5.5 m LOA, using paddling as means of propulsion. Fishing operations take placefrom November to July while during the other months it is suspended due to the presenceof large quantities of macro-vegetation, drifting downstream. Mean number of days ofoperation is 225 days. Mean catch per year per gill-netter was estimated to be 8.4 t of whichmullets contributed 25.1%, followed by sciaenids 17.1%, carangids 15.5%, cat fishes 13.6%,Â prawns 13.3% and miscellaneous fishes 15.2%. GER.t fish-1was found to be 0.61 GJ makingÂ this one of the most energy efficient system. Nearly 98.92% of the GER is contributed byÂ fishing gear and the balance by the fishing canoe. Energy efficiency ratio was 8.01 and energyÂ intensity value was 0.125.