13.5. Questions and Tasks
THEN(can[9] *(NP_ma ss[1 3 ] /sus_mass[9] » ELSE
0 )+(IF(Fishwt[1 0] >(.3 *F ishwt[1 3 ] » AND (sus_mass [1 0]>0)
THEN(can[ 10] * (NP_ mass [1 3] /sus_mass[lO] » ELSE
0) + ( I F( F i s h wt[ l l ] >( .3* Fi s hw t[13] » AND (s u s _ ma s s [ 1 1]>0)
THEN (can[ 11] * (NP_ mass [1 3 ] /sus_mass [11 ] » ELSE
0 ) + ( I F( F i s h wt[12] >(.3* Fishwt[13]»
AND ( s u s_ma s s [12] >0)
THEN(can [1 2] *(NP_mass [1 3 ] /sus_mass [ 1 2] » ELSE 0)
Natural_Morta lity [ 1 4 ] = ( I F (F i s hwt[ 1] > ( . 3 *F i s h wt [ 1 4 ] »
AND ( s u s _ ma s s [ 1 ] >0)
THEN(can[ 1]*(NP_ma ss [14] /sus_mass[1]»
ELSE
0)+(IF(Fishwt[ 2] > (.3 *Fishwt [14]»
AND (s u s _ ma s s [2]>0)
THEN(can[2]*(NP_ma s s[14] / sus_mass[2] » ELSE
0)+(IF(Fishwt[ 3]>( .3 *Fi shwt[14] » AND (sus_mass [3]>0)
THEN(can[3]*(NP_ma ss[14] /sus_mass[3]»
ELSE
0)+(IF(Fishwt[4] >( .3*Fishwt[14]» AND (sus_mass [4]>0)
THEN(can[4]*(NP_ma ss[14 ] /sus_mass[4]»
ELSE
0)+(IF(Fishwt[5]> ( . 3 *F ishwt[14]») AND (sus_mass[5]>0)
THEN(can[5] * (NP_ma ss[14] /sus_mass[5]»
ELSE
0)+(IF(Fishwt[ 61 > ( . 3 *Fishwt[14]» AND (sus_mass [6]>0)
THEN( can[6] *(NP_ma ss[1 4 ] /sus_mass[6]»
ELSE
0 )+(IF(Fi shwt[7] > (. 3 *Fishwt[14] » AND ( s u s _ ma s s [7]>0)
THEN(can[7] * (NP_ ma ss [1 4 ] /sus_mass [7]»
ELSE
0 )+(IF(F ishwt [ 8 ] > (. 3 *F i s h wt [ 1 4 ] » AND ( sus _ma s s [8 ] >0 )
THEN( c a n[8 ]* (NP_mass[14] / s u s _ma s s [8]»
ELSE
0 ) +( I F( F i s h wt[9]>( .3* Fishwt[14]»
AND (sus _ ma s s [ 9] >0 )
THEN( can [9] * (NP_ma ss [ 1 4 ] /sus_mass [9] » ELSE
0) +(I F( Fi s hwt[ 10]>( . 3* Fi s hwt[1 4] » AND (s u s _ ma s s [ 10]>0 )
THEN(can [l O] * (NP_ma ss [ 1 4 ] /sus_mass[ 1 0 ] ) ) ELSE
0 )+(IF (Fishwt[ 1 1] > (. 3 *Fishwt [ 1 4])) AND (s u s _ ma s s [11]>0)
THEN(can [ll ] *(NP_mass [14] /sus_mass[11] » ELSE
0)+(IF(F ishwt[ 1 2] > ( . 3 *Fi shwt[14] ) AND (sus_mass[1 2]>0 )
THEN(can[1 2] *(NP_mass[14] /sus_mass[12] ») ELSE
0)+(IF(Fishwt[1 3] >( . 3 *Fishwt[14]» AND (sus_mass[13]>0)
THEN(can[13]*(NP_mass[14] /sus_mass[13]»
ELSE 0)
Natural_Mortali t y [15] = ( I F (F i s h wt[ l ]>( .3* F i s h wt [ 1 5 ] ) )
AND ( s u s _ ma s s [1 ]>0)
THEN(can[l]*(NP_ma ss[15] /sus_mass[l]»
ELSE
0)+(IF (Fishwt[ 2J> (.3*Fishwt[15]») AND ( s u s _ma s s [ 2 ] >0)
THEN(can[2] * (NP_ma ss[ 15] /sus_mass[2] » ELSE
0)+ (IF(Fishwt[ 3]> ( .3 *Fishwt[ 15 ]») AND (sus_mass [3]>0)
THEN(can[ 3] *(NP_ma ss[ 15] /sus_mass[ 3] » ELSE
0) + (IF(Fishwt[ 4 ]> ( . 3 *F ishwt[ 15]» AND ( s u s _ ma ss [ 4] >0 )
THEN(can [4] * (NP_ mas s[ 1 5] / s u s _ ma s s[4 ]»
ELSE
295