Isaacs-Kidd Midwater Trawl

Abstract

The Isaacs-Kidd Midwater Trawl collects bathypelagic biological specimens larger and more active than those taken by standard plankton nets. The trawl consists essentially of a net of special design attached to a wide, V-shaped, rigid diving vane. The vane keeps the mouth of the net open and exerts a depressing force, maintaining the trawl at depth for extended periods at towing speeds up to five kt. The inlet opening is unobstructed by the towing cable. The new trawl has been successfully tested to a depth of approximately 3700 m. It has already collected several species of bathypelagic fishes not reported from the Pacific before, and species new to scientific literature. This report describes the tests conducted to evaluate the device, discusses the results, and includes sections on conclusions and recommendations for further work.

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Document Details

Document Type
Technical Report
Publication Date
Jan 10, 1953
Accession Number
AD0895931

Entities

People

  • Robert C. Winsett
  • Robert F. Devereux

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Cables
  • California
  • Compression
  • Containers
  • Filtration
  • Fish
  • Geographic Distribution
  • High Pressure
  • Leading Edges
  • Materials
  • Oceanographic Equipment
  • Oceanography
  • Performance Tests
  • Scientific Literature
  • Shape
  • Towing Cables
  • Water Masses

Readers

  • Marine Hydrodynamics
  • Oceanography.
  • Systems Analysis and Design