Squatina dumeril: Population traits

at T = 12 °C with background hazards for embryo, juv, adult: 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 std f_minf f_max date: 2023/03/16
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.636696 0.693388 0.846694 0.846694 1 1 scaled functional response
r 1/d 0 0 0.000406558 0.000109155 0.000540846 0.000161089 spec pop growth rate
t2 d NaN NaN 1704.92 6350.13 1281.6 4302.88 population doubling time
a_b d 663.876 656.348 640.153 640.153 628.138 628.138 age at birth
t_p d 12773 7751.6 4856.22 4856.22 3851.51 3851.51 time since birth at puberty
S_b - 0.999913 0.999915 0.999921 0.999921 0.999925 0.999925 survival probability at birth
S_p - 0.999467 0.498355 0.99955 0.45625 0.999587 0.426322 survival probability at puberty
theta_0b - 0.0407223 0.217872 0.231351 0.346003 0.289165 0.403153 frac of ind that is embryo
theta_bp - 0.0407257 0.152284 0.178339 0.216784 0.205872 0.237325 fraction of individuals that is juvenile
theta_pi - 0.918552 0.629845 0.59031 0.437213 0.504962 0.359522 frac of ind that is adult
L_bi cm 8.22686 7.25593 6.63811 6.55986 6.50627 6.38432 mean structural length of post-natals
L2_bi cm^2 70.6012 59.4611 50.1371 51.8847 49.1312 50.8391 mean squared structural length of post-natals
L3_bi cm^3 622.064 526.602 419.775 473.147 420.747 486.097 mean cubed structural length of post-natals
Ww_bi g 1968.59 1767.98 1628.12 1835.12 1851.18 2138.7 mean wet weight of post-natals
L_pi cm 8.43355 8.15463 7.53084 8.02122 7.62946 8.1756 mean structural length of adults
L2_pi cm^2 73.163 70.7788 61.1343 71.0564 63.3394 75.3687 mean squared structural length of adults
L3_pi cm^3 647.583 642.879 530.929 683.459 569.801 772.817 mean cubed structural length of adults
Ww_pi g 2049.34 2158.37 2059.23 2650.83 2506.98 3400.2 mean wet weight of adults
R 1/d 0 0 0 0 0 0.000698877 mean reproduction rate of adults
J_X g/d 3.32287 3.04774 3.13802 3.24739 3.63184 3.7581 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 0.0543856 0.0159039 0.0626568 0.0208363 yield of living structure on food
Y_VX_d mol/mol 0.0163741 0.0306138 0.00179836 0.0345885 0.00101078 0.0371307 yield of dead structure on food
Y_EX mol/mol 0 0 0.156551 0.0457801 0.213017 0.0708383 yield of living reserve on food
Y_EX_d mol/mol 0.0354435 0.0721673 0.00517666 0.0995644 0.0034364 0.126235 yield of dead reserve on food
Y_CX mol/mol 0.775897 0.728756 0.622259 0.642679 0.564716 0.587916 yield of CO2 on food
Y_HX mol/mol 0.666386 0.625898 0.534433 0.551971 0.485011 0.504937 yield of H2O on food
Y_OX mol/mol -0.912203 -0.85678 -0.731575 -0.755582 -0.663923 -0.691198 yield of O2 on food
Y_NX mol/mol 0.0629106 0.0590883 0.0504535 0.0521091 0.0457878 0.0476688 yield of N-waste on food
mu_TX J/mol 437144 410292 349302 360957 316031 329311 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