A new Bayesian SCAA model was used as the basis for the assessment of this stock for the first time. This model was approved during the 2018 3M cod benchmark. As a result of poor reliability of catch data prior to 1988, the assessment was conducted from 1988 to 2017.



The results of the Bayesian SCAA model have changed the perception of recent stock size compared to previous assessments. The level of M is higher than that in previous assessments; this may result in higher changes in stock abundance estimates from year to year and also in projections. Higher stock abundance is derived from the Bayesian SCAA, especially since 2010, which implies a higher level of SSB and a lower level of F. Recruitment is estimated at very low levels over the last years, which implies that the SSB is projected to decrease in the near future.

Timing of the next full assessment of this stock will be subject to the timelines of the ongoing MSE process.

Fishing Mortality

Recruitment

Biomass

Human impact

Mainly fishery related mortality. Other sources (e.g. pollution, shipping, oil-industry) are undocumented.

Biological and environmental interactions

Redfish, shrimp and smaller cod are important prey items for cod. Recent studies indicate strong trophic interactions between these species in the Flemish Cap.