13.5. Questions and Tasks
305
SDA_other[Cohorts] = IF(Fishwt[Cohorts] = 0) THEN 0
ELSE((76.769 * (Fishwt[Cohorts]A. 2 9 » *NP_ma s s [Coh o r t s ] ) {SDA in joules per day}
summary [Cohorts] = cann[Cohorts]+other[Cohorts]
susceptible_joules [Cohorts] = sus_mass [Cohorts] *5860
sus_mass [1] = (IF((.3*Fishwt[1]»Fishwt[2]) THEN
(NP_mass[2]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[3]) THEN
(NP_mass[3]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[4]) THEN
(NP_mass[4]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[5]) THEN
(NP_mass[5]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[6]) THEN
(NP_mass[6]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[7]) THEN
(NP_mass[7]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[8]) THEN
(NP_mass[8]) ELSE 0)+(IF(( .3*Fishwt[1]»Fishwt[9]) THEN
(NP_mass[9]) ELSE 0)+(IF(( .3*Fishwt[1]»Fishwt[10])
THEN (NP_mass[lO]) ELSE
0)+(IF(( .3*Fishwt[1]»Fishwt[11]) THEN (NP_mass[ll])
ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[12]) THEN
(NP_mass[12]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[13])
THEN (NP_mass[13]) ELSE
O)+(IF( (.3*Fishwt[1]»Fishwt[14]) THEN (NP_mass[14])
ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[15]) THEN
(NP_mass[15]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[16])
THEN (NP_mass[16]) ELSE
O)+(IF( (.3*Fishwt[1]»Fishwt[17]) THEN (NP_mass[17])
ELSE 0)+(IF(( .3*Fishwt[1]»Fishwt[18]) THEN
(NP_mass[18]) ELSE 0)+(IF((.3*Fishwt[1]»Fishwt[19])
THEN (NP_mass[19]) ELSE
0)+(IF(( .3*Fishwt[1]»Fishwt[20]) THEN (NP_mass[20])
ELSE 0) {quantity of biomass which is susceptible to
cannibalism}
sus_mass [2] = (IF(( .3*Fishwt[2]»Fishwt[3]) THEN
(NP_mass[3]) ELSE 0)+(IF(( .3*Fishwt[2]»Fishwt[4]) THEN
(NP_mass[4]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[5]) THEN
(NP_mass[5]) ELSE 0)+(IF(( .3*Fishwt[2]»Fishwt[6]) THEN
(NP_mass[6]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[7]) THEN
(NP_mass[7]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[8]) THEN
(NP_mass[8]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[9]) THEN
(NP_mass[9]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[10])
THEN (NP_mass[lO]) ELSE
0)+(IF((.3*Fishwt[2]»Fishwt[11]) THEN (NP_mass[ll])
ELSE 0)+(IF (( .3*Fishwt[2]»Fishwt[12]) THEN
(NP_mass[12]) ELSE 0)+(IF((.3*Fishwt[2]»Fishwt[13])
THEN (NP_mass[13]) ELSE