Eco-Friendly Demersal Fish Trawling Systems
Eco-Friendly Demersal Fish Trawling Systems
Date
1997
Authors
Mounsey, R.P
Prado, J
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Trawling has impacts on the seabed when various elements of bottom rigging,
particularly the trawl boards and goundrope, skip ub or dig into the substrate.
Trawl fishermen rig their gear to efficiently sweep the seabed which results in the
destaiction of marine organisms or change the substrate.
In northern Australian fork rigged semi-pelagic trawl system has been
developed which was found compatible with that of a standard similarly sized
demersal trawl system. Although this system had significantly less impact on the
substrate, and produced a higher quality product,fishermen found it difficult to
operate.Consequently the original standard demersal trawl system was then slightly
modified in order to achive similar results.The modified system has proven its
commercial viability in Australia's tropical seas.The ongoing reserch is now focussing
on further simplifying the standard system with a possible cross-over board to
net,bridle arrangement.This paper describes the three systems,includeing the general
rigging arrangements and net design
Description
Keywords
Trawl systems, seabed, substrate.
Citation
Fishery Tech 34(2):1-6