Publication Detail

Progress in Reducing the Habitat Impact of Trawls and Dredges

Clifford A Goudey
35 pp.
MITSG 99-08
$7.00 DOM

This report describes a project aimed at reducing the impact of trawls and dredges on the sea bed. Model tests of a variety of flexible devices were performed, exploring the potential of using hydrodynamic forces to control trawl shape and height in the water column. Utility in midwater and off-bottom fisheries was demonstrated and some devices showed potential in improving trawl selectivity. A second phase of the project focused on the development of a sea scallop dredge aimed at reducing the habitat disturbance associated with that fishery. Sea trials of a novel dredge design were performed to improve its operation and catch rate.

type: Technical reports

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