IKEDA and MOTODA: ZOOPLANKTON PRODUCTION AND AMMONIA KXCRKTION 



,0 



ZOOPLANKTON BIOMASS 

 (mg wet wt/m-*) 



>100 



50-100 



10-50 



<10 



2S\ 



0\ 



SECONDARY 

 PRODUCTION 

 (mg C/m^/day) 



& 



31-60 

 11-30 

 \ ca.10 



_L 



Figure 2. — A. Sampling stations, zooplankton biomass, and isotherms (100-m depth, continuous lines; 50-m depth, broken lines) 

 during the cold season (December- April) in the Kuroshio and adjacent seas. B. Distribution of estimated secondary production. 



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