Arctozenus risso: Population traits

at T = 4.1 °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: 2025/06/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.392144 0.460533 0.730266 0.730266 1 1 scaled functional response
r 1/d 0 0 0.00184673 0.00043911 0.00245014 0.00060487 spec pop growth rate
t2 d NaN NaN 375.337 1578.53 282.901 1145.94 population doubling time
a_b d 92.7599 90.6879 85.5534 85.5534 82.7366 82.7366 age at birth
t_j d 0.390445 0.351667 0.270536 0.270536 0.233639 0.233639 time since birth at metam
t_p d 9011.18 5541.95 2976.87 2976.87 2308.92 2308.92 time since birth at puberty
S_b - 0.99996 0.999962 0.999968 0.999968 0.99997 0.99997 survival probability at birth
S_j - 0.999959 0.994623 0.999967 0.994531 0.99997 0.994492 survival probability at metam
S_p - 0.999793 0.473072 0.999846 0.40619 0.999863 0.370112 survival probability at puberty
theta_0b - 0.0164563 0.281738 0.146696 0.393115 0.183786 0.434635 frac of ind that is embryo
theta_bj - 6.9319e-05 0.00109034 0.000428313 0.00121718 0.000468287 0.00119425 frac of ind between b and j
theta_jp - 0.0163979 0.192204 0.124887 0.240166 0.14967 0.250791 frac of ind between j and p
theta_pi - 0.967076 0.524967 0.727989 0.365502 0.666075 0.313381 frac of ind that is adult
L_bi cm 0.761576 0.377277 0.408097 0.286556 0.388814 0.275155 mean structural length of post-natals
L2_bi cm^2 0.654223 0.245267 0.235216 0.151612 0.218204 0.143036 mean squared structural length of post-natals
L3_bi cm^3 0.596549 0.214111 0.173937 0.132047 0.162023 0.13193 mean cubed structural length of post-natals
Ww_bi g 1.22621 0.479518 0.515828 0.391598 0.59813 0.487038 mean wet weight of post-natals
L_pi cm 0.772479 0.471806 0.456204 0.393281 0.446664 0.393728 mean structural length of adults
L2_pi cm^2 0.66511 0.330162 0.272811 0.241253 0.263372 0.244667 mean squared structural length of adults
L3_pi cm^3 0.606676 0.292279 0.203494 0.217898 0.197993 0.236234 mean cubed structural length of adults
Ww_pi g 1.24703 0.654583 0.603482 0.646198 0.730916 0.872088 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.00378799 0.0016678 0.00253634 0.00163483 0.00322201 0.00211207 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 yield of faeces on food
Y_VX mol/mol 0 0 0.126645 0.0354672 0.123209 0.0377831 yield of living structure on food
Y_VX_d mol/mol 0.0495847 0.085714 0.00236222 0.0850341 0.00116674 0.0797835 yield of dead structure on food
Y_EX mol/mol 0 0 0.248934 0.0697145 0.331633 0.101698 yield of living reserve on food
Y_EX_d mol/mol 0.0523369 0.106249 0.00464319 0.167143 0.00314043 0.214747 yield of dead reserve on food
Y_CX mol/mol 0.788703 0.698662 0.50804 0.533266 0.431476 0.456613 yield of CO2 on food
Y_HX mol/mol 0.567428 0.502648 0.365507 0.383655 0.310423 0.328508 yield of H2O on food
Y_OX mol/mol -0.857715 -0.759795 -0.552494 -0.579927 -0.46923 -0.496567 yield of O2 on food
Y_NX mol/mol 0.118306 0.104799 0.0762061 0.0799899 0.0647214 0.068492 yield of N-waste on food
mu_TX J/mol 418922 371206 268529 281977 226187 239672 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