Octopus joubini: Population traits

at T = 24 °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: 2025/03/24
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - NaN NaN NaN NaN 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.00864449 0.00864449 0.00254955 0.00254955 spec pop growth rate
t2 d NaN NaN NaN NaN 80.1837 80.1837 271.871 271.871 population doubling time
a_b d NaN NaN NaN NaN 19.7728 19.875 19.7728 19.875 age at birth
t_j d NaN NaN NaN NaN 37.2004 38.3966 37.2004 38.3966 time since birth at metam
t_p d NaN NaN NaN NaN 204.429 217.266 204.429 217.266 time since birth at puberty
S_b - NaN NaN NaN NaN 1 1 1 1 survival probability at birth
S_j - NaN NaN NaN NaN 1 1 0.168751 0.177724 survival probability at metam
S_p - NaN NaN NaN NaN 1 1 0.0351684 0.0355289 survival probability at puberty
theta_0b - NaN NaN NaN NaN 0.184719 0.18787 0.639488 0.633093 frac of ind that is embryo
theta_bj - NaN NaN NaN NaN 0.155732 0.15825 0.286153 0.28852 frac of ind between b and j
theta_jp - NaN NaN NaN NaN 0.116842 0.124901 0.0437877 0.0474677 frac of ind between j and p
theta_pi - NaN NaN NaN NaN 0.542707 0.528979 0.0305718 0.0309185 frac of ind that is adult
L_bi cm NaN NaN NaN NaN 1.00398 0.950052 0.333279 0.32945 mean structural length of post-natals
L2_bi cm^2 NaN NaN NaN NaN 1.36664 1.21716 0.190488 0.180596 mean squared structural length of post-natals
L3_bi cm^3 NaN NaN NaN NaN 2.14308 1.79583 0.201026 0.17817 mean cubed structural length of post-natals
Ww_bi g NaN NaN NaN NaN 10.7709 8.62216 1.01034 0.855428 mean wet weight of post-natals
L_pi cm NaN NaN NaN NaN 1.33906 1.27906 1.12241 1.08798 mean structural length of adults
L2_pi cm^2 NaN NaN NaN NaN 1.99009 1.80219 1.45455 1.34938 mean squared structural length of adults
L3_pi cm^3 NaN NaN NaN NaN 3.1939 2.73025 2.12485 1.86872 mean cubed structural length of adults
Ww_pi g NaN NaN NaN NaN 16.0522 13.1085 10.6793 8.9721 mean wet weight of adults
R 1/d NaN NaN NaN NaN 2.03123 1.31465 0.380794 0 mean reproduction rate of adults
J_X g/d NaN NaN NaN NaN 0.717173 0.600148 0.0844865 0.0746607 mean ingestion rate of wet food by post-natals
Y_PX mol/mol NaN NaN NaN NaN 0.109375 0.109375 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol NaN NaN NaN NaN 0.0216987 0.0217284 0.00509575 0.00511074 yield of living structure on food
Y_VX_d mol/mol NaN NaN NaN NaN 0.020656 0.0221722 0.0557889 0.0582572 yield of dead structure on food
Y_EX mol/mol NaN NaN NaN NaN 0.087357 0.0825938 0.020515 0.0194269 yield of living reserve on food
Y_EX_d mol/mol NaN NaN NaN NaN 0.0831592 0.084281 0.224601 0.221447 yield of dead reserve on food
Y_CX mol/mol NaN NaN NaN NaN 0.677754 0.67985 0.584625 0.586383 yield of CO2 on food
Y_HX mol/mol NaN NaN NaN NaN 0.485008 0.486514 0.418058 0.419322 yield of H2O on food
Y_OX mol/mol NaN NaN NaN NaN -0.737058 -0.739336 -0.635779 -0.637692 yield of O2 on food
Y_NX mol/mol NaN NaN NaN NaN 0.101663 0.101977 0.0876937 0.0879574 yield of N-waste on food
mu_TX J/mol NaN NaN NaN NaN 357539 358769 307244 308335 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