Triakis scyllium: Population traits

at T = 12.4 °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_min f_max date: 2024/06/29
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.673324 0.673324 0.785509 0.785509 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000680659 0.000680659 0.00012826 0.00012826 spec pop growth rate
t2 d NaN NaN NaN NaN 1018.35 1018.35 5404.21 5404.21 population doubling time
a_b d 390.637 391.695 383.824 384.787 374.421 375.242 374.421 375.242 age at birth
t_p d 9179.22 12460.5 5081.44 5357.77 3469.44 3565.35 3469.44 3565.35 time since birth at puberty
S_b - 0.999905 0.999902 0.99991 0.999907 0.999916 0.999913 0.999916 0.999913 survival probability at birth
S_p - 0.999459 0.99944 0.435945 0.439906 0.999554 0.999539 0.398241 0.401451 survival probability at puberty
theta_0b - 0.0389496 0.0394397 0.276292 0.273203 0.226944 0.22744 0.378368 0.375536 frac of ind that is embryo
theta_bp - 0.0389513 0.0394413 0.180776 0.179559 0.175884 0.17617 0.22648 0.225645 fraction of individuals that is juvenile
theta_pi - 0.922099 0.921119 0.542932 0.547238 0.597172 0.596391 0.395152 0.398819 frac of ind that is adult
L_bi cm 8.78159 8.60262 7.1377 7.05712 6.71697 6.64468 6.47107 6.42917 mean structural length of post-natals
L2_bi cm^2 81.9011 78.5137 62.8329 61.047 54.2484 52.9121 56.0346 54.941 mean squared structural length of post-natals
L3_bi cm^3 791.076 741.832 627.765 597.582 504.579 484.206 597.819 575.839 mean cubed structural length of post-natals
Ww_bi g 2285.05 2111.37 2010.85 1884.63 1919.82 1811.83 2274.57 2154.71 mean wet weight of post-natals
L_pi cm 9.02034 8.83739 8.48008 8.35594 7.73469 7.64655 8.36082 8.27459 mean structural length of adults
L2_pi cm^2 84.9421 81.454 80.4952 77.8826 67.0391 65.3632 82.2742 80.2501 mean squared structural length of adults
L3_pi cm^3 823.152 772.251 826.374 783.479 642.445 616.552 921.14 882.704 mean cubed structural length of adults
Ww_pi g 2377.7 2197.95 2647.03 2470.9 2444.37 2307.05 3504.74 3302.95 mean wet weight of adults
R 1/d 0 0 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 4.70838 4.41237 4.21401 4.00237 4.63174 4.41629 4.78425 4.58562 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 0.109375 0.109375 yield of faeces on food
Y_VX mol/mol 0 0 0 0 0.0741506 0.0746281 0.0160269 0.0161063 yield of living structure on food
Y_VX_d mol/mol 0.0256073 0.0258173 0.0472997 0.0476407 0.00262613 0.00269652 0.0489964 0.0493594 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.207976 0.204619 0.0449519 0.0441611 yield of living reserve on food
Y_EX_d mol/mol 0.0483602 0.0476628 0.10421 0.102606 0.00736574 0.00739347 0.137425 0.135336 yield of dead reserve on food
Y_CX mol/mol 0.755408 0.755859 0.683682 0.68485 0.553618 0.556191 0.594983 0.597237 yield of CO2 on food
Y_HX mol/mol 0.648789 0.649176 0.587186 0.588189 0.47548 0.47769 0.511007 0.512943 yield of H2O on food
Y_OX mol/mol -0.888115 -0.888645 -0.803788 -0.805161 -0.650875 -0.6539 -0.699508 -0.702157 yield of O2 on food
Y_NX mol/mol 0.0612493 0.0612859 0.0554337 0.0555284 0.044888 0.0450966 0.0482419 0.0484247 yield of N-waste on food
mu_TX J/mol 425626 425900 384772 385472 310197 311729 333796 335136 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