298
13. Nile Perch Population Dynamics in Lake Victoria:
Natural_Mortality_2[101 =
(NP_mass[lol*can[lol*sus_mass[lol*Fishwt[lol)*o{not
used in this variable}
Natural_Mortality_2[111 =
(NP_mass[lll*can[lll*sus_mass[lll*Fishwt[lll)*o{not
used in this variable}
Natural_Mortality_2[121 =
(NP_mass[121*can[121*sus_mass[121*Fishwt[121)*0{not
used in this variable}
Natural_Mortality_2[131 =
(NP_mass[131*can[131*sus_mass[131*Fishwt[131)*0{not
used in this variable}
Natural_Mortality_2[141 =
(NP_mass[141*can[14]*sus_mass[14]*Fishwt[14])*0{not
used in this variable}
Natural_Mortality_2[l5] =
(NP_mass[l5]*can[l5]*sus_mass[l5l*Fishwt[l5])*o{not
used in this variable)
Natural_Mortality_2[161 =
(NP_mass[16]*can[16]*sus_mass[161*Fishwt[16])*0{not
used in this variable)
Natural_Mortality_2[171 =
(IF(Fishwt[11>( .3*Fishwt[17])) AND (sus_mass [11>0)
THEN(can[11*(NP_mass[17] /sus_mass[ll)) ELSE
0)+(IF(Fishwt[21>(.3*Fishwt[171)) AND (sus_mass [2]>0)
THEN(can[21*(NP_mass[171 /sus_mass[2])) ELSE
0)+(IF(Fishwt[3]>(.3*Fishwt[17])) AND (sus_mass [3]>0)
THEN(can[31*(NP_mass[17] /sus_mass[3])) ELSE
0)+(IF(Fishwt[4]>(.3*Fishwt[17])) AND (sus_mass [4]>0)
THEN(can[4] *(NP_mass[17] /sus_mass[41)) ELSE
0)+(IF(Fishwt[5l>(.3*Fishwt[171)) AND (sus_mass [5]>0)
THEN(can[5l*(NP_mass[17] /sus_mass[5l)) ELSE
0)+(IF(Fishwt[61>( .3*Fishwt[171)) AND (sus_mass [61>0)
THEN(can[6]*(NP_mass[171 /sus_mass[61)) ELSE
0)+(IF(Fishwt[71>(.3 *Fishwt[171)) AND (sus_mass [7]>0)
THEN(can[7]*(NP_mass[17] /sus_mass[71)) ELSE
0)+(IF(Fishwt[81>( .3*Fishwt[171)) AND (sus_mass [81>0)
THEN(can[8]*(NP_mass[17] /sus_mass[81)) ELSE
0)+(IF(Fishwt[91>(.3*Fishwt[17])) AND (sus_mass [91>0)
THEN(can[91*(NP_mass[17] /sus_mass[9])) ELSE
0)+(IF(Fishwt[101>(.3*Fishwt[171)) AND (sus_mass [10]>0)
THEN(can[101*(NP_mass[17] /sus_mass[10])) ELSE
0)+(IF(Fishwt[111>( .3*Fishwt[17])) AND (sus_mass [lll>o)