PARTICLE FLUXES IN THE KARA SEA AND OB AN D YENISEI ESTUARIES

Particle fluxes in the Kara sea and Ob and Yenisei estuaries were dete rmined in September 1993 during the 49-th cruise of the R/V ''Dmitry M endeleev'' for the first time. Composition of particles was studied. 2 3 sedimentological stations were deployed. Samples were obtained at 13 stations. In the open Kara Sea off Ob and Yenisei estuaries particle fluxes were equal to 9.0 - 62.6 mg m-2 d-1, in Ob estuary - up to 1321 mg m-2 d-1, and in Yenisei estuary - up to 22156 mg m-2 d-1. Fluxes o f organic carbon in these regions were 0.71 - 3.29; 4.28 - 9.04; 26.7 - 368 mg m-2 d-1 correspondingly. Particulate material is represented mainly by pellets of crustacea and by ''marine snow'', consisting main ly of diatoms.