Progress In Reducing The Habitat Impact Of Trawls And Dredges

Details

• Personal Author:
  Goudey, Clifford A.
• Corporate Authors:
  Massachusetts Institute of Technology
• NOAA Program & Office:
  Sea Grant ; OAR (Oceanic and Atmospheric Research)
• Sea Grant Program:
  MIT (MIT Sea Grant)
• Description:
  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.
• Keywords:
  Benthos Environmental Aspects Ocean Bottom. Ocean Engineering Trawls And Trawling Environmental Aspects Ocean Bottom. Ocean Engineering Trawls And Trawling
• Sea Grant Document Number:
  MIT-T-99-001
• Document Type:
  Technical Report
• Rights Information:
  Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:f53dd45f262f98bd2444239776e3bc952e36378c15eb3d73102c08f0f3a7bfce
• Download URL:
  https://repository.library.noaa.gov/view/noaa/41529/noaa_41529_DS1.pdf
• File Type:
  [PDF - 4.74 MB ]