Organised by the National Institute of Aquatic Resources (DTU-Aqua), the DANA BITS voyage covers the central Baltic Sea and constitutes the Danish contribution to the "Baltic International Trawl Survey" (BITS).

In this cruise, deep-stratified demersal trawls for fish stocks are paired with hydrographic and physico-chemical (temperature, salinity and oxygen content) measurements. 

The database forms the basis for important data which is included in analyzes of fish stocks in the Baltic Sea.