(Table 1) Concentrations of phosphorus- and nitrogen forms in the near-bottom layer of the Baltic Sea

Nitrogen and phosphorus compounds in the near-bottom layer and interstitial waters in sediments of the Baltic Sea were studied. Statistical analysis of data revealed that variability of hydrochemical conditions in regions of fluid fluxes is higher than in regions without such fluxes. Hydrochemical conditions (concentrations of mineral phosphorus and ammonia in the near-bottom layer) in locations of fluid fluxes appeared to depend on intensity of these fluid fluxes. Influence of the fluid fluxes on formation of the hydrochemical structure and specific conditions is discussed.