Ophiura ophiura: Population traits

at T = 10 °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: 2025/05/01
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.313909 0.914264 0.957132 0.957132 1 1 scaled functional response
r 1/d 0 0 0.00858819 0.000137946 0.00929024 0.000291145 spec pop growth rate
t2 d NaN NaN 80.7093 5024.77 74.6103 2380.76 population doubling time
a_b d 2.50199 2.14743 2.13219 2.13219 2.11774 2.11774 age at birth
t_j d 58.2694 20.1738 19.2895 19.2895 18.4814 18.4814 time since birth at metam
t_p d 2378.34 751.33 716.99 716.99 685.725 685.725 time since birth at puberty
S_b - 0.999993 0.999995 0.999995 0.999995 0.999995 0.999995 survival probability at birth
S_j - 0.999954 0.848208 0.99997 0.842845 0.99997 0.837567 survival probability at metam
S_p - 0.993297 0.212853 0.999228 0.212833 0.999289 0.212813 survival probability at puberty
theta_0b - 0.00260859 0.101849 0.0178606 0.105974 0.0191243 0.110089 frac of ind that is embryo
theta_bj - 0.002738 0.0977217 0.0182352 0.101297 0.0194919 0.104843 frac of ind between b and j
theta_jp - 0.0608667 0.408896 0.135148 0.405529 0.138313 0.402263 frac of ind between j and p
theta_pi - 0.933787 0.391534 0.828756 0.3872 0.823071 0.382805 frac of ind that is adult
L_bi cm 0.0723554 0.0253936 0.0472758 0.0250578 0.0461345 0.0246905 mean structural length of post-natals
L2_bi cm^2 0.00736954 0.00211635 0.00375096 0.00205812 0.00357025 0.00198808 mean squared structural length of post-natals
L3_bi cm^3 0.00091502 0.000419912 0.00042695 0.000409758 0.000397443 0.000394775 mean cubed structural length of post-natals
Ww_bi g 0.00092547 0.000433879 0.000441818 0.000424027 0.000411903 0.000409137 mean wet weight of post-natals
L_pi cm 0.0765506 0.0451758 0.0540439 0.0446313 0.0529275 0.0440141 mean structural length of adults
L2_pi cm^2 0.00786345 0.00471983 0.00442349 0.00461564 0.00423231 0.00448361 mean squared structural length of adults
L3_pi cm^3 0.000977256 0.000961825 0.000505726 0.000944673 0.000473393 0.00091628 mean cubed structural length of adults
Ww_pi g 0.000988417 0.000993818 0.000523337 0.00097757 0.000490616 0.000949616 mean wet weight of adults
R 1/d 0 0.346057 0.328074 0.364462 0.326424 0.375697 mean reproduction rate of adults
J_X g/d 4.56904e-06 3.80644e-06 7.10314e-06 3.87464e-06 7.06356e-06 3.90951e-06 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 0.516213 0.0145884 0.522732 0.0293992 yield of living structure on food
Y_VX_d mol/mol 0.489829 0.533605 0.0400389 0.521631 0.0349565 0.509614 yield of dead structure on food
Y_EX mol/mol 0 0 0.017976 0.000508007 0.0190183 0.00106962 yield of living reserve on food
Y_EX_d mol/mol 0.00559422 0.0177494 0.00139427 0.0181646 0.0012718 0.018541 yield of dead reserve on food
Y_CX mol/mol 0.395202 0.339271 0.315003 0.335733 0.312647 0.332001 yield of CO2 on food
Y_HX mol/mol 0.286741 0.24616 0.228552 0.243593 0.226843 0.240885 yield of H2O on food
Y_OX mol/mol -0.429782 -0.368957 -0.342566 -0.36511 -0.340004 -0.361051 yield of O2 on food
Y_NX mol/mol 0.0592803 0.0508906 0.0472504 0.05036 0.046897 0.0498001 yield of N-waste on food
mu_TX J/mol 224509 195936 183720 194121 182496 192207 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