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1967, Fishery leaflet (Washington, D.C.), Volume 600., 23
This leaflet is designed to answer requests for information about otter trawls currently used in the North Atlantic fisheries. Its major emphasis is on trawls... 
trawl nets | gear construction
Book
1977, Scottish fisheries research report, Volume 7., 12 pages.
To a net designer, attempting to design a net to suit a specific power of vessel, the ability to predict the hydrodynamic drag of the net he is designing is... 
trawl nets | hydrodynamics | mathematical models
Book
1968, Research development bulletin, Volume 31., 4
A promising development in the field of mechanisation is represented by the successful trials by the White Fish Authority's Industrial Development Unit of a... 
fishery industry equipment | field tests | trawl nets | performance assessment | fishing gear
Book
20
A series of investigations have been carried out with regard to the measurement of trawl net meshes, in conjunction with the legal stipulation of mesh size.... 
trawl nets | mesh gauges | mesh regulations | measurement
Book
2019, Canadian technical report of fisheries and aquatic sciences, ISBN 9780660305332, Volume 3306., 1 online resource (v, 87 pages)
In October 2018, a mid-water trawl gear comparison study was completed in the Strait of Georgia on the FV Sea Crest using Cantrawl 250 and LFS 7742 nets.... 
sea water | Evaluation | Évaluation | trawl nets | Chaluts | Fisheries | Sélectivité des engins de pêche | comparative studies | Gear selectivity | performance assessment | Equipment and supplies | Appareils et matériel | Trawls and trawling | Pêches
eBook
1956, Fishery leaflet (Washington, D.C.), Volume 437., 29
Book
1974, Marine technical report, Volume 15., 26
Book
1970, Research development bulletin, Volume 38., 7
Mechanised hauling of trawls using a net drum reduces physical effort, improves crew safety, and results in faster handling times using fewer men. This... 
winches | fishery industry equipment | trawl nets | performance assessment | trawlers | hydraulic systems
Book
1963, 428., Volume 428., 19
Contents: 1) Relationship between the vertical and horizontal openings in trawls; 2) Effect of the height of the upper and lower wings and their patterns on... 
fishing gear | trawls | gear design | translations
Book
1958, Circular (Pacific Biological Station), Volume 48., 6 pages.
During the winter season in British Columbia the many factors which govern the behavior, size, shape and distribution of herring schools in the sheltered... 
INE | Canada | illustrations | midwater trawls | depth measurements | British Columbia | experimental fishing | inclinometers
Book
1984, PERD Project - Fisheries conservation - computer modelling techniques for trawl net design., 25 pages.
An engineering research project requires the use of both theoretical and practical methods in order to study the subject's performance and locate possible... 
bottom trawls | trawl nets | experimental research | comparative studies
Book
1947, Fishery leaflet (Washington, D.C.), Volume 241., 17
Book
1971, iii, 29
The main purpose of this experiment is to find rational and effective shrimp trawl net design operating both in the Gulf of Thailand and Indian Ocean for... 
evaluation | shrimp fisheries | testing | Thailand Gulf | fishing gear | fishing efficiency | experimental fishing | comparative studies | gear design | trawls | marine | ISEW
Book
1944, Fishery leaflet (Washington, D.C.), Volume 49., 12
Book
1993, Scottish fisheries information pamphlet, Volume 20., 7 pages.
Techniques for designing and installing square mesh windows in trawls and seines are described. Either knotless or knotted netting may be used. The factors... 
mesh selectivity | trawl nets | white fishes | escapement | design | Coregonidae | gear selectivity | seine nets | Coregoninae | prawn fisheries
Book
1950, Fishery leaflet (Washington, D.C.), Volume 382., 11
The primary objective of the study was to study the release of small fish and shrimp from the various types of webbing and to determine whether changes in net... 
mesh selectivity | shrimp fisheries | fishing gear | experimental fishing | trawls | escapement
Book
1987, Miscellaneous bulletin (Fisheries Research Institute (N.S.W.)), Volume 6., 24
Over a seven day period, five nets and three designs of otterboards were filmed using video and still cameras. particular attention was paid to observing the... 
evaluation | new South Wales | PSE | Jervis Bay | underwater photography | testing | performance assessment | Australia | trawls | marine
Book
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