Standardised CPUE of cod and hydrographic data

The dataset contains information on all the variables at the aggregation level of individual bottom trawl hauls as used in the analyses presented in "Spatio-temporal dynamics of a fish predator: density-dependent and hydrographic effects on Baltic Sea cod population".
Year: year when the cod sample was collected;
Lon: longitude (decimal-degree) of the position where the cod sample was collected;
Lat: latitude (decimal-degree) of the position where the cod sample was collected;
Depth: bottom depth (m) where the cod sample was collected;
AG3: catch-per-unit-effort (kg/h) of cod of age 3+ of the trawl station;
Oxy: modelled bottom oxygen (ml/L) associated to the trawl station;
Sal: modelled bottom salinity (psu) associated to the trawl station;
Crv: cod reproductive volume (km3) estimated for the year and ICES subdivision of the trawl station;
Stk: stock size (thousands) of the eastern Baltic cod in the year of the sample from stock assessment (ICES 2013).