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Management Brief: A Quickly Deployed Vertical Gill‐Net System
Author(s) -
Lynch William E.,
Gerber Jerald M.,
Johnson David L.,
Reutter Jeffrey R.
Publication year - 1989
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8675(1989)009<0119:mbaqdv>2.3.co;2
Subject(s) - net (polyhedron) , shore , software portability , fish <actinopterygii> , marine engineering , substrate (aquarium) , swell , environmental science , computer science , hydrology (agriculture) , geology , fishery , oceanography , geotechnical engineering , engineering , operating system , biology , mathematics , geometry
We describe a vertical gill‐net system that can be easily and quickly deployed in rough water. Previously described vertical gill nets are retrieved with floating rollers that work poorly when large waves and swells move the net and where surface rollers may interfere with boat traffic. Our system uses a flotation pipe to keep the top of the net at any desired depth while the bottom of the net lies on the substrate. We have consistently retrieved 12 nets and set an additional 12 nets within 45 min on both Lake Erie and an Ohio reservoir. Improved portability allows fish processing to occur on shore.