Equation for consumption (Diana 1979)

N=E*C*A*P
N= number of smolts consumed
E= number of meals a NPM could eat during the time they were available
C= average meal size of smolts expressed as the average number of smolts consumed per NPM.
A= number of NPM from mark/recapture est.
P= % of NPM that had eaten smolts based on stomach analysis

N=ECA*P