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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

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Title 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
 
Creator Kurup, B Madhusoodana
 
Subject Bottom Trawling
 
Description 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
 
Publisher CMFRI; Kochi
 
Date 2004
 
Type Teaching Resource
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5290/1/22.pdf
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]