Science Advisory Report 2021/010
An Assessment of Northern Shrimp (Pandalus borealis) in Shrimp Fishing Areas 4-6 in 2019
Summary
- Resource status of Northern Shrimp in SFAs 5 and 6 was assessed based on DFO fall multi-species trawl survey data (1996-2019). The coverage of this survey in 2019 was severely reduced due to weather such that biomass estimates, particularly in SFA 5, are likely an overestimate of true stock status. Resource status for Northern Shrimp in SFA 4 was assessed based on Northern Shrimp Research Foundation (NSRF)-DFO summer trawl survey data (2005-19).
- Trawl survey data for SFAs 4-6 provided information on shrimp distribution, length frequencies and biomass. Trends in fisheries performance were inferred from total allowable catch (TAC), commercial catch to date, fisher catch per unit effort (CPUE) and fishing patterns.
- Research on larval dispersal modeling within SFAs 4-6 indicated strong downstream larval connectivity and that a majority of recruits in a particular SFA may come from SFAs farther north. It also indicates low larval shrimp retention in SFAs 4 and 5, and higher larval retention in SFA 6.
This Science Advisory Report is from the February 18-20, 2020 regional peer review meeting on the Assessment of Northern Shrimp in Shrimp Fishing Areas (SFAs) 4, 5 and 6. Additional publications from this meeting will be posted on the Fisheries and Oceans Canada (DFO) Science Advisory Schedule as they become available.
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