Gorbacheva, Е. А. BIOASSAY FOR SEDIMENT POLLUTION ESTIMATION IN SOUTH AREAS OF THE BARENTS SEA // Proceedings of Petrozavodsk State University. 2018. No 8 (177). DOI: 10.15393/uchz.art.2018.253


General Biology

BIOASSAY FOR SEDIMENT POLLUTION ESTIMATION IN SOUTH AREAS OF THE BARENTS SEA

Keywords:
bioassay
bottom sediments
Barents Sea
toxicity
pollution
Phaeodactylum tricornutum
Artemia salina		 Summary: Results of an elutriate bioassay of sediment from the southern areas of the Barents Sea are present-ed. Unicellular Phaeodactylum tricornutum Bohlin alga and larvae of brine shrimp Artemia sa-lina L. were used as test objects. Experiments revealed a higher sensitivity of A. salina larvae to pollutants present in the sediment in the studied sea areas. As of the bioassay data, sediments in the southern part of the Barents Sea are of a low pollution level. Toxic sediments were mostly found in the Western Coastal area and that points out to a highly polluted marine environment in this area. The bioassay results are consistent with the published data of chemical-analytical studies. The dif-ferences were noted in the quality estimations of the sediments in the Western Coastal area obtained by methods of bioassay and bioindication. The research results confirmed prospects of bioassay for sediment pollution level estimation in sea areas with a relatively low level of pollutants.



Displays: 296;