Abramis brama: Population traits

at T = 18 °C with background hazards for embryo, larva, juv, adult: 0, 0, 0, 0 1/d

Ln survival probability as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
Ln survivor function of the stable age distribution as function of age, with (dashed) and without (solid) thinning at max (red) and min (blue) scaled functional response for females.
model abj f_min f_max date: 2025/04/03
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.266111 0.266111 0.266111 0.266111 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00693088 0.00693088 0.00161778 0.00161778 spec pop growth rate
t2 d NaN NaN NaN NaN 100.009 100.009 428.456 428.456 population doubling time
a_b d 15.7444 15.7444 15.7444 15.7444 13.9428 13.9428 13.9428 13.9428 age at birth
t_j d 0.0017576 0.0017576 0.0017576 0.0017576 0.00104453 0.00104453 0.00104453 0.00104453 time since birth at metam
t_p d 5847.67 3564.54 5847.67 3564.54 1290.29 1130.15 1290.29 1130.15 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_j - 1 1 0.99982 0.99982 1 1 0.999818 0.999818 survival probability at metam
S_p - 0.999999 0.999999 0.424438 0.424438 0.999999 0.999999 0.306747 0.306747 survival probability at puberty
theta_0b - 0.00235457 0.00235457 0.323696 0.323696 0.0919133 0.0919133 0.46886 0.46886 frac of ind that is embryo
theta_bj - 2.63487e-07 2.63487e-07 3.62198e-05 3.62198e-05 6.57451e-06 6.57451e-06 3.48159e-05 3.48159e-05 frac of ind between b and j
theta_jp - 0.00236001 0.00236001 0.211194 0.211194 0.0836459 0.0836459 0.254947 0.254947 frac of ind between j and p
theta_pi - 0.995285 0.995285 0.465074 0.465074 0.824434 0.824434 0.276157 0.276157 frac of ind that is adult
L_bi cm 2.39271 2.39271 0.43317 0.43317 0.53082 0.53082 0.204149 0.204149 mean structural length of post-natals
L2_bi cm^2 6.29315 6.29315 0.703138 0.703138 0.486612 0.486612 0.134538 0.134538 mean squared structural length of post-natals
L3_bi cm^3 17.1848 17.1848 1.68231 1.68231 0.639337 0.639337 0.246299 0.246299 mean cubed structural length of post-natals
Ww_bi g 41.4614 41.4614 4.05887 4.05887 4.03334 4.03334 1.5538 1.5538 mean wet weight of post-natals
L_pi cm 2.39821 2.39821 0.597012 0.597012 0.576327 0.576327 0.320622 0.320622 mean structural length of adults
L2_pi cm^2 6.30806 6.30806 1.02007 1.02007 0.53528 0.53528 0.252977 0.252977 mean squared structural length of adults
L3_pi cm^3 17.2255 17.2255 2.44621 2.44621 0.704147 0.704147 0.473233 0.473233 mean cubed structural length of adults
Ww_pi g 41.5597 41.5597 5.90192 5.90192 4.4422 4.4422 2.98545 2.98545 mean wet weight of adults
R 1/d 0 3.41996 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.158455 0.158455 0.0177043 0.0177043 0.0460424 0.0460424 0.0127298 0.0127298 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0962411 0.0962411 0.0313011 0.0313011 yield of living structure on food
Y_VX_d mol/mol 0.0244379 0.0244379 0.0519785 0.0519785 2.80238e-05 2.80238e-05 0.0610165 0.0610165 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.510908 0.510908 0.166166 0.166166 yield of living reserve on food
Y_EX_d mol/mol 0.034523 0.034523 0.0734292 0.0734292 0.000148768 0.000148768 0.323914 0.323914 yield of dead reserve on food
Y_CX mol/mol 0.831664 0.831664 0.765217 0.765217 0.2833 0.2833 0.308228 0.308228 yield of CO2 on food
Y_HX mol/mol 0.598336 0.598336 0.550531 0.550531 0.203818 0.203818 0.221753 0.221753 yield of H2O on food
Y_OX mol/mol -0.904435 -0.904435 -0.832174 -0.832174 -0.308088 -0.308088 -0.335198 -0.335198 yield of O2 on food
Y_NX mol/mol 0.12475 0.12475 0.114783 0.114783 0.0424949 0.0424949 0.0462342 0.0462342 yield of N-waste on food
mu_TX J/mol 441293 441293 406125 406125 143284 143284 156797 156797 yield of heat on food

Remarks

  • Reprod-code O applies. Sex ratio is assumed to be 1:1. Parameters of male and female differ.
  • Buffer handling rule: release each egg as soon as reproduction buffer allows
  • Weights of adults do not include reproduction buffer