50-25 metres 



: 1100- WOO mg/m 

 1000-500 mg/m 



Fig. 394. Distribution of plankton biomass (mg/m 3 ) in northern part 

 of Sea of Okhotsk in 1949, at the horizons 25 to 50 m and 50 to 100 m 



(Kusmorskaya). 



