Science Response 2015/004
Interim Report on Scotian Shelf Silver Hake (NAFO Divs. 4VWX) Stock Status
Context
The most recent assessment of Silver Hake was a framework assessment conducted in 2012 (DFO 2013). Through the framework process a new analytical reconstruction of population trends was developed using a logistic biomass dynamic model, using data from 1993-2014. Biological reference points were calculated from model outputs and included Maximum Sustainable Yield (MSY), Biomass at MSY (BMSY), and Fishing Mortality at MSY (FMSY). The consequences and risk to productivity of the stock were evaluated under a number of harvest options (DFO 2013).
An interim update on the status of 4VWX Silver Hake was requested by the Resource Management Sector of Fisheries and Aquaculture Management Branch. The objective of the interim update is to report new information from the Fisheries and Oceans Canada (DFO) summer Research Vessel (RV) survey and commercial landings data. Following from this is an evaluation of recent trends in biomass (B) and fishing mortality (F) against MSY, BMSY, and FMSY derived in the framework assessment.
This Science Response Report results from the Science Response Process of December 4, 2014, on the Stock Status Update for 4VWX Silver Hake.
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