Before the experiment, S. intermedius individuals in each treatment were dried with a paper towel and weighed on a digital balance (0.01 g sensitivity; AL204; Mettler Toledo, Shanghai, China) to obtain initial average mass (W0). The specific growth rate (SGR), survival rate (S), average food consumption (FC) of individual, and daily feeding rate (FR) were calculated using the following formulae:
where Wt is the average body weight (g) of live S. intermedius on day t; t is the duration of experiment; N0 is the initial number of live S. intermedius; Nt is the number of live S. intermedius on day t; TBt is the bait supplied on days t; and RBt is the total amount of remaining bait on day t (Qin et al., 2011 ; Chang et al., 2016 (link)).
where Wt is the average body weight (g) of live S. intermedius on day t; t is the duration of experiment; N0 is the initial number of live S. intermedius; Nt is the number of live S. intermedius on day t; TBt is the bait supplied on days t; and RBt is the total amount of remaining bait on day t (Qin et al., 2011 ; Chang et al., 2016 (link)).
Free full text: Click here
