статья в журнале

En

Oceanology

ISSN:0001-4370
eSSN:1531-8508

2018

Parkhomenko, A.V.¹

10.1134/S0001437018020145

The interannual variation of the monthly average (weighted average) concentrations of particulate organic phosphorus (P-POM) in the photosynthetic layer, oxycline, redox zone, and H2S zone in the open Black Sea is estimated based on long-term observation data. The suspension sedimentation rates from the studied layers are assessed using model calculations and published data. The annual variation of P-POM sediment fluxes from the photosynthetic layer, oxycline, redox zone, and upper H2S zone to the anaerobic zone of the sea and the correspondingly annual average values are estimated for the first time. A regular decrease in the P-POM annual average flux with depth in the upper active layer is demonstrated. A correlation between the annual average values of P-POM sediment flux from the photosynthetic layer and ascending phosphate flux to this layer is shown, which suggests their balance in the open sea. The results are discussed in terms of the phosphorus biogeochemical cycle and the concept of new and regenerative primary production in the open Black Sea.

SEASONAL DYNAMICS, NORTHEAST PACIFIC, WESTERN PART, VARIABILITY, NITROGEN, CARBON, PHYTOPLANKTON, CHLOROPHYLL, SURFACE, MATTER

2018-12-12 15:49:00