17.9. Questions and Tasks
393
CATCH_WEIGHT [AGE_6_TO_7] =
CATCH[AGE_6_TO_7]*WEIGHT_AT_AGE[AGE_6_TO_7]
CATCH_WEIGHT [AGE_7_TO_8] =
CATCH[AGE_7_TO_8]*WEIGHT_AT_AGE[AGE_7_TO_8]
CATCH_WEIGHT [AGE_8_TO_9] =
CATCH[AGE_8_TO_9]*WEIGHT_AT_AGE[AGE_8_TO_9]
CATCH_WEIGHT [AGE_9_TO_10] =
CATCH[AGE_9_TO_10]*WEIGHT_AT_AGE[AGE_9_TO_10]
CATCH_WEIGHT [AGE_10_PLUS] =
CATCH[AGE_10_PLUS]*WEIGHT_AT_AGE[AGE_10_PLUS]
EGGS_AT_AGE[Year_C1ass] =
MATURE_FISH[Year_C1ass]*FECUNDITY_AT_AGE[Year_C1ass]*SE
X_RATIO
EGG_MORT = .80
EMIGRATION_RATE = .03
FECUNDITY_AT_AGE[AGE_3_TO_4] =
0.0026*(WEIGHT_AT_AGE[AGE_3_TO_4] /0.0105) A1 .55
FECUNDITY_AT_AGE[AGE_4_TO_5] =
0.0026* (WEIGHT_AT_AGE[AGE_4_TO_5] 10 . 0105 )A1 . 55
FECUNDITY_AT_AGE[AGE_5_TO_6] =
0 .0026*(WEIGHT_AT_AGE[AGE_5_TO_6] /0 .OI05) A1.55
FECUNDITY_AT_AGE[AGE_6_TO_7] =
0.0026*(WEIGHT_AT_AGE[AGE_6_TO_7] /0.0105) A1.55
FECUNDITY_AT_AGE[AGE_7_TO_8] =
0.0026* (WEIGHT_AT_AGE[AGE_7_TO_8] 10 . 0105 )A1. 55
FECUNDITY_AT_AGE[AGE_8_TO_9] =
0 .0026* (WEIGHT_AT_AGE[AGE_8_TO_9] 10 . 01 05 ) A1. 55
FECUNDITY_AT_AGE[AGE_9_TO_10] =
0.0026* (WEIGHT_AT_AGE[AGE_9_TO_10] 10 . 0105 )A1 . 55
FECUNDITY_AT_AGE[AGE_10_PLUS] =
0.0026* (WEIGHT_AT_AGE[AGE_10_PLUS] 10. 0105 )A1 . 55
MORT_AGE_O = 0.9900
SEX_RATIO = .5
SUM_CATCH_#S =
CATCH [AGE_3_TO_4] +CATCH [AGE_4_TO_5]+CATCH [AGE_5_TO_6]+C
ATCH[AGE_6_TO_7]+CATCH [AGE_7_TO_8] +CATCH [AGE_8_TO_9]+CA
TCH [AGE_9_TO_10]+CATCH [AGE_10_PLUS]
SUM_MATURE = MATURE_FISH[AGE_3_TO_4] +
MATURE_FISH [AGE_4_TO_5] + MATURE_FISH[AGE_5_TO_6] +
MATURE_FISH [AGE_6_TO_7] + MATURE_FISH[AGE_7_TO_8] +
MATURE_FISH [AGE_8_TO_9] + MATURE_FISH[AGE_9_TO_10] +
MATURE_FISH [AGE_10_PLUS]
WEI GHT_AT_AGE [AGE_3_TO_4] = 1771 {WEIGHT IN GRAMS}