Research Document - 2009/018
Assessment of Cod in Division 4X in 2008
By D.S. Clark and J. Emberley
Abstract
A population model was used to provide estimates of abundance, fishing mortality and natural mortality for 4X cod. Mortality for causes other than reported landings, including natural mortality, for cod of ages 4 and older increased in 1996 and is currently 0.7. The high mortality greatly restricts productivity. Spawning stock biomass (SSB) at the beginning of 2008 is 9,000t; this is the lowest level in the time-series, which started in 1948.
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