Primary Production and P/B of Phytoplankton on Western Kamchatka Shelf

The shelf of Western Kamchatka is reckoned as one of the most productive parts of the Sea of Okhotsk [1], known as one of principle high-latitude eutrophic zones of the World Ocean [2]. Complex ecosystem research, of the Sea of Okhotsk, including estimation of primary production of phytoplankton (Рp), was accomplished in the early 1990th. Targeted Pp measurements on the shelf of Western Kamchatka (in the middle part) were provided at 5 stations only [3]. In the other parts of the Sea of Okhotsk Рр was recalculated based on the chlorophyll-а concentration [4] or on the nutrients stocked [5].