Octopus pallidus: Population traits

at T = 14 °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_minf f_max date: 2025/03/24
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.10565 0.10565 0.552825 0.552825 1 1 scaled functional response
r 1/d 0 0 0.0115103 NaN 0.0127907 NaN spec pop growth rate
t2 d NaN NaN 60.2199 NaN 54.1915 NaN population doubling time
a_b d 90.6915 90.6915 76.8247 NaN 74.7053 NaN age at birth
t_j d 2904.76 2904.76 235.278 NaN 197.528 NaN time since birth at metam
t_p d 2904.82 2904.82 235.282 NaN 197.531 NaN time since birth at puberty
S_b - 0.997621 0.997621 0.998631 NaN 0.998745 NaN survival probability at birth
S_j - 0.97568 0.834952 0.993152 NaN 0.994279 NaN survival probability at metam
S_p - 1e-06 1e-06 0.977489 NaN 0.98491 NaN survival probability at puberty
theta_0b - 0.158787 0.227539 0.590209 NaN 0.618564 NaN frac of ind that is embryo
theta_bj - 0.157318 0.208813 0.243043 NaN 0.237297 NaN frac of ind between b and j
theta_jp - 0.683895 0.563648 0.142138 NaN 0.11675 NaN frac of ind between j and p
theta_pi - 1.11022e-16 0 0.0246103 NaN 0.0273886 NaN frac of ind that is adult
L_bi cm 0.327223 0.313997 0.859677 NaN 0.949262 NaN mean structural length of post-natals
L2_bi cm^2 0.10893 0.0998038 1.62284 NaN 2.0754 NaN mean squared structural length of post-natals
L3_bi cm^3 0.0369632 0.0321602 5.53543 NaN 8.08577 NaN mean cubed structural length of post-natals
Ww_bi g 0.069643 0.0605935 31.1437 NaN 75.7505 NaN mean wet weight of post-natals
L_pi cm NaN NaN 3.99923 NaN 4.27378 NaN mean structural length of adults
L2_pi cm^2 NaN NaN 17.1686 NaN 19.845 NaN mean squared structural length of adults
L3_pi cm^3 NaN NaN 78.9797 NaN 99.8172 NaN mean cubed structural length of adults
Ww_pi g NaN NaN 444.359 NaN 935.125 NaN mean wet weight of adults
R 1/d 0 0 1.08564 NaN 0.917477 NaN mean reproduction rate of adults
J_X g/d 0.00197212 0.00171586 0.893109 NaN 2.17815 NaN mean ingestion rate of wet food by post-natals
Y_PX mol/mol 0.109375 0.109375 0.109375 NaN 0.109375 NaN yield of faeces on food
Y_VX mol/mol 0 0 0.0713398 NaN 0.0474819 NaN yield of living structure on food
Y_VX_d mol/mol 0.0539183 0.0711615 0.0205954 NaN 0.0180949 NaN yield of dead structure on food
Y_EX mol/mol 0 0 0.330036 NaN 0.397347 NaN yield of living reserve on food
Y_EX_d mol/mol 0.0476701 0.0629151 0.0952793 NaN 0.151425 NaN yield of dead reserve on food
Y_CX mol/mol 0.789037 0.756548 0.373375 NaN 0.276276 NaN yield of CO2 on food
Y_HX mol/mol 0.56723 0.543874 0.268415 NaN 0.198612 NaN yield of H2O on food
Y_OX mol/mol -0.858077 -0.822746 -0.406045 NaN -0.30045 NaN yield of O2 on food
Y_NX mol/mol 0.118355 0.113482 0.0560062 NaN 0.0414414 NaN yield of N-waste on food
mu_TX J/mol 419322 402316 192609 NaN 137887 NaN yield of heat on food

Remarks

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