Length structure of Eastern Baltic cod (Gadus morhua) commercial catch in 1938-1990

The dataset contains information on length structure of Eastern Baltic cod (Gadus morhua) commercial landings in 1938-1990. 

Length distribution information is shown by countries and include data for Poland (POL), Germany (DE), former German Dem. Rep.(GDR) and Soviet Union (USSR). Data are shown separately by ICES Subdivisions, or in some cases, for several subdivisions combined. Data are either quarterly or combined for all quarters (all). Length distributions are given in percentage (pct). 

Data sources indicated by numbers in the column "DataSource" in the dataset file are listed in the separate file for data sources.