■430 mg/m3 



, 3 



126 mg/m 



Fig. 205. Distribution of nutrient zooplankton biomass in the Black Sea in August 

 1951 in the to 25 m layer (Kusmorskaya, 1950). 1 Biomass above 1,000 mg/m 3 ; 

 2 Biomass between 500 and 1,000 mg/m 3 ; 3 Between 300 and 500 mg/m 3 ; 4 Between 

 200 and 300 mg/m 3 ; 5 Between 100 and 200 mg/m 3 ; 6 Between 50 and 100 mg/m 3 . 



Fig. 206. Horizontal distribution of plankton biomass in Black Sea in the 150 to 



175 m layer (Nikitin). 



Table 171. Changes (mg/m z ) in the food-zoop lank ton biomass in the to 10 m layer 



(A. Kusmorskaya, 1950) 



