Technical University of Koszalin, Rac≥awicka 15-17, 75-620 Koszalin, Poland
Key words: coastal waters, southern Baltic, biomass, greater sand eel, sand eel, sculpin, eelpout, sand goby, garfish, lumpfish, hooknose.
Investigations of southern Baltic ichthyofauna were carried out in the region between the mouths of the ParsÍta and £eba Rivers. Catches were made using bottom trawls at depths from 2 to 45 m. The ichthyofauna composition, length and mass of eight sea species which are considered to be non-commercial were determined. The area covered by trawl method was used to determine the biomass of sand eel, greater sand eel, sculpin, eelpout, sand goby, garfish, lumpfish and hooknose. In the region described, sand lances (sand eel, greater sand eel) had the greatest biomass among all
fish at depths to 10 m. In deeper waters, to 40 m, sculpin and sand goby had the greatest biomass. The contribution of other species was very insignificant.