Report of the Workshop on Combining Climatic Scenarios and Medium-Term Predictions for Baltic Herring and Sprat stocks (WKCSMPB)

The direct and indirect effects of density dependence (i.e. parental stock effects) and climate‐induced hydrographic change on five different Baltic herring stocks and on Baltic  sprat,  investigated  by  WKHRPB  and  WKSSRB  (ICES  2007b  and  2008)  to  de‐velop  stock  specific  recruitment‐environment  relationships,  were  revisited  and  up‐dated. The predictors to be included in the final recruitment models were selected on the basis of the parsimonious principle, statistical significance of the predictors and the ecological criterion being fulfilled simultaneously (Cardinale et al. 2009).