13.5 . Questions and Tasks
293
0)+{IF(Fishwt[7»{ .3*Fi shwt[9))) AND (sus_mass [7»0)
THEN{can[7)*{NP_mass[9) /sus_mass[7])) ELSE
0)+{IF{Fishwt[ 8»{.3 *Fishwt [9] ) ) AND {sus_mass [8»0)
THEN{can [ 8)* {NP_mass [9) /sus_mass[ 8))) ELSE 0)
Natural_Mortality [l O) = ( I F {F i s hwt [ 1 »( . 3* F i s hwt [1 0 ) ) )
AND (sus_mass[ l» O)
THEN(can[l)*(NP_mass [l O) /sus_mass[ l)) ) ELSE
0)+(IF{Fishwt[ 2» ( .3 *Fishwt[10) )) AND ( s u s _ ma s s [ 2 » 0 )
THEN{can[2 )*(NP_mass[10) /sus_mass[2) )) ELSE
0)+(IF(F ishwt[ 3»(.3*Fi shwt[10))) AND (sus_mass[ 3]>0)
THEN(can[ 3)*{NP_mass[10) /sus_mass[3])) ELSE
0)+{IF{F ishwt[4]>{ . 3*Fishwt[lO])) AND (sus_mass[4] >0)
THEN{can[4 ]*(NP_mass[10] /sus_mass[4])) ELSE
0)+{I F{F ishwt[5]>{ .3*Fishwt[lO])) AND (sus_mass [5]>0)
THEN{can[ 5 ]*{NP_mass [10] /sus_mas s [5 ])) ELSE
0)+ (IF{Fishwt[6 ] >{ .3*Fishwt [10 ])) AND (sus_mas s[6 ]>0)
THEN{can[6]*(NP_mass[10] /sus_mass[6 ])) ELSE
0)+(IF{Fishwt[7]>{ .3*Fishwt[10])) AND (su s_ma ss[7] >0)
THEN(can[7]*(NP_mass[10 ] /sus_mass[7 ])) ELSE
0)+(IF{Fishwt[ 8»{ .3 *Fi shwt[l O] )) AND (sus _mass [8]>0)
THEN{can( 8)*(NP_mass[10 ] /sus _mass[ 8])) ELSE
0) +{IF(Fishwt[9]> {.3 *Fishwt[10] )) AND {sus_mass [9] >0)
THEN(can[9] *( NP_mass[1 0 ] /sus_mass[9])) ELSE 0)
Natural_Mortality [1 1] = ( I F (F i s h wt[ 1 ] > (. 3* F i s h wt[ 1 1 ] ) )
AND {s us_ ma s s [ 1 ]>0 )
THEN{can[l ] *{NP_mass[l l ] /sus_mass[l] ) ) ELSE
0)+{IF{F ishwt[ 2» { .3 *Fi shwt[ll] )) AND (sus_mass [2] >0)
THEN(can[2 ] * (NP_mass[1 1] /sus_mass[ 2])) ELSE
0)+{IF(Fishwt[3»{. 3 *Fishwt[ll])) AND (s u s _ ma s s (3»0)
THEN(can[3] *{NP_mass[1 1] /sus_mass[3])) ELSE
0)+(IF{Fishwt[4J>{ .3 *Fi shwt[11])) AND {sus _ mass [4»0)
THEN{can[4]*(NP_mass[11] /sus_mass[4])) ELSE
0)+(IF(Fishwt[5]>( . 3 *Fi shwt[11])) AND (sus_mass [5 ] >0)
THEN(can [5 ]*(NP_mass[11 ] /sus_mass [5 ])) ELSE
0) +( IF(Fi s hwt [6 ]>(.3*Fishwt [11 ])) AND (sus _ mass [ 6 ] >0 )
THEN(can[6]*(NP_ mass[11] /sus_mass[6 ])) ELSE
0)+(IF(Fishwt[7] >( .3*Fishwt [11])) AND (su s_mass [7]>0)
THEN(can[7]*(NP_mass[11] /sus_mass[7])) ELSE
0)+{IF{Fishwt[ 8] > ( .3 *F ishwt[l l])) AND (sus _mass[ 8] >0)
THEN(can [ 8]* (NP_mass[ 1 1 J /sus_mass [ 8 ])) ELSE
0)+(IF{Fi shwt[9]>( .3 *Fishwt[ 11])) AND ( s us _ ma s s [9]>0)
THEN{can[9] *{N P_mass[ l l ] /sus_ma ss [9] ) ) ELSE