IMIS

Data were collected since 1981 up to now by the White Sea Benthic team, wich includes Dr. V. V. Loockanin (1981-1984), Dr. V. V. Fedyakov (1981-1999), Dr. A. D. Naumov (since 1981), Dr. M. V. Fokin (2000-2009) and Dr. D. A. Aristov (since 2010). Species identification was carried out by mentioned scientists and in difficult cases by taxonomists from the Laboratory for Marine Research of the Zoological Institute Russian Academy Sciencies. The main sampling method used in subtidal (about 85 per cent samples) was Petersen grab 0.25 sq. M. (Trade mark "Ocean-50"), but sometimes van Veen grab 0.1 sq. M, different SQUBA diving corers and Agassiz (Sigsby in Russian tradition) trawl were in use. Samples were whashed out on sieve 1 mm mesh size (measured by the mesh side). While sampling in intertidal, frame 0.025 sq. M (at rocky tidal flats) and tube corer 0.0076 sq. M or intertidal grab 0.05 sq. M (at muddy and sandy beaches) were used. The whashing out method was the same. Data digitazing for EurOBIS dataBase was accomlished by Dr. A. D. Naumov.