Commercial Trials of Escape Mechanisms in the Newfoundland and Labrador Snow Crab Fishery

Lay Summary 

Commercial catch-per-unit-effort as well as survey indices of biomass and recruitment have decreased for many of the snow crab stocks in Newfoundland and Labrador in recent years. At the same time scientific studies have shown that the handling of undersized crab in the commercial fishery results in significant mortality depending on distance dropped into the water as well as the length of time kept out of the water. Recent studies have strongly recommended that new research initiatives focus on trap modifications in order to reduce the catch of undersized and soft-shelled crab in an effort to improve and sustain stock health (Grant 2003).

This initiative investigated the performance and utility of escape mechanisms as selectivity devices for conical snow crab traps, under laboratory, experimental, and commercial harvesting conditions.

Departments 
School of Fisheries
Centre for Sustainable Aquatic Resources
Funding 
Canadian Centre For Fisheries Innovation (CCFI) H-2005-03
Government Of Newfoundland And Labrador (DFA)
Communities 
St. John's
Locations 
Newfoundland and Labrador
Canada
Themes 
Harvesting technology
Crab
Industry Sectors 
Fishing, Hunting and Trapping
Start date 
1 Jan 2008
End date 
31 Dec 2016