Diatom Species – Environment Relationships in Water Bodies of a Megalopolis (St. Petersburg City)

Ludikova A.V.

The paper discusses the results of the study of surface-sediment diatom species – environment relationships in the water bodies of St. Petersburg city. Application of canonical correspondence analysis (CCA) enabled establishing a relationship between the diatom assemblages composition and water depth, total phosphorus, pH and specific conductivity. Ecological preferences of main diatom species have been established as well.

Key words: surface-sediment diatoms, urban ponds, hydrochemistry, canonical correspondence analysis, St. Petersburg.

Science and Education, 2015, No.1, pp.93-99