Immediate effect of trawling on sea bottom & its living communities along Kerala coast- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models

Kurup, B Madhusoodana (2004) Immediate effect of trawling on sea bottom & its living communities along Kerala coast- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models. [Teaching Resource]

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Abstract

Otter trawling, the most widely used towed bottom fishing gear, is known to have a wide range of impact on benthos. Seabed disturbance by mobile bottom fishing gear has emerged as a major concern related to the conservation of essential fish habitat (DeAlteris et al., 1999). Several studies have been conducted on the impact of trawling on sea bottom and its living communities (Walting and Norse 1999,Churchill, 1989, Gibbs et al., 1980), however no concerted attempt has so far been made to assess its real impact on the sea bottom ecology along Indian coast. Trawl fishing with more than 5000 units, is the most widespread method of capturing marine fishes and invertebrates in Kerala, the southernmost state of India with a coastline of 590 Km (Raveendran, 2001). Menon (1996) reported that incessant trawling operations in a climatically limited coastal habitat slowly resulted in disproportionate destruction of non – target groups too along with juveniles /sub adults of homogeneous species of commercially important fishes and shell fishes and a wide spectrum of benthic organisms

Item Type:Teaching Resource
Uncontrolled Keywords:Immediate effect of trawling on sea bottom & its living communities along Kerala coast
Subjects:Marine Fisheries > Bottom Trawling
Divisions:Contributors
ID Code:5290
Deposited By:Arun Surendran
Deposited On:20 Oct 2010 10:36
Last Modified:23 Jul 2014 09:54

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