Chionoecetes opilio: Population traits

at T = 5 °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: 2025/06/20
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.229948 NaN 0.28344 0.28344 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00583027 0.00583027 0.000767197 0.000767197 spec pop growth rate
t2 d NaN NaN NaN NaN 118.888 118.888 903.48 903.48 population doubling time
a_b d 61.4554 NaN 59.3666 NaN 48.0323 44.6852 48.0323 44.6852 age at birth
t_j d 967.035 NaN 773.783 NaN 238.84 167.773 238.84 167.773 time since birth at metam
t_p d 14677.1 NaN 7402.21 NaN 1506.77 1023.42 1506.77 1023.42 time since birth at puberty
S_b - 0.999988 NaN 0.999989 NaN 0.999994 0.999997 0.999994 0.999997 survival probability at birth
S_j - 0.999931 NaN 0.717028 NaN 0.999969 0.999985 0.41574 0.312419 survival probability at metam
S_p - 0.996706 NaN 0.0130772 NaN 0.999801 0.999936 0.0127227 0.0126757 survival probability at puberty
theta_0b - 0.00618162 NaN 0.242987 NaN 0.244021 0.22905 0.478012 0.544422 frac of ind that is embryo
theta_bj - 0.00620432 NaN 0.207364 NaN 0.184674 0.176836 0.307991 0.312561 frac of ind between b and j
theta_jp - 0.0912909 NaN 0.515754 NaN 0.383536 0.304268 0.20048 0.130174 frac of ind between j and p
theta_pi - 0.896323 NaN 0.0338947 NaN 0.187768 0.289846 0.0135177 0.0128424 frac of ind that is adult
L_bi cm 0.935384 NaN 0.0992894 NaN 0.180905 0.262955 0.0834438 0.086155 mean structural length of post-natals
L2_bi cm^2 1.0607 NaN 0.0351571 NaN 0.0666262 0.148325 0.017638 0.0235668 mean squared structural length of post-natals
L3_bi cm^3 1.29183 NaN 0.0373271 NaN 0.0404659 0.132035 0.0191765 0.0396027 mean cubed structural length of post-natals
Ww_bi g 1.41919 NaN 0.0418631 NaN 0.0578147 0.221524 0.027398 0.066444 mean wet weight of post-natals
L_pi cm 1.02482 NaN 0.669527 NaN 0.435606 0.530582 0.521798 0.571413 mean structural length of adults
L2_pi cm^2 1.17445 NaN 0.65857 NaN 0.234568 0.37413 0.463354 0.634526 mean squared structural length of adults
L3_pi cm^3 1.43211 NaN 0.821573 NaN 0.158392 0.348342 0.720033 1.38581 mean cubed structural length of adults
Ww_pi g 1.57329 NaN 0.921409 NaN 0.226299 0.584437 1.02873 2.32506 mean wet weight of adults
R 1/d 0 NaN 0 NaN 0 0 0 2.29312 mean reproduction rate of adults
J_X g/d 0.00261835 NaN 9.77807e-05 NaN 0.000690471 0.00250794 0.000157188 0.00035077 mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 NaN 0.109375 NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 NaN 0 NaN 0.34169 0.306946 0.0935957 0.0866181 yield of living structure on food
Y_VX_d mol/mol 0.0959626 NaN 0.180257 NaN 0.000191503 0.000108821 0.224675 0.197722 yield of dead structure on food
Y_EX mol/mol 0 NaN 0 NaN 0.146491 0.208037 0.0401269 0.0587067 yield of living reserve on food
Y_EX_d mol/mol 0.00946042 NaN 0.0219045 NaN 8.2102e-05 7.37552e-05 0.0963237 0.134009 yield of dead reserve on food
Y_CX mol/mol 0.785202 NaN 0.688463 NaN 0.40217 0.37546 0.435904 0.413569 yield of CO2 on food
Y_HX mol/mol 0.566218 NaN 0.496458 NaN 0.290009 0.270748 0.314335 0.29823 yield of H2O on food
Y_OX mol/mol -0.853907 NaN -0.748704 NaN -0.43736 -0.408313 -0.474046 -0.449757 yield of O2 on food
Y_NX mol/mol 0.11778 NaN 0.103269 NaN 0.0603255 0.056319 0.0653856 0.0620354 yield of N-waste on food
mu_TX J/mol 419315 NaN 370324 NaN 220944 204512 238317 224336 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