Serrasalmus spilopleura: Population traits

at T = 27 °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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.654035 0.654336 0.827168 0.827168 1 1 scaled functional response
r 1/d 0 0 0.00777674 0.00150481 0.011114 0.00219059 spec pop growth rate
t2 d NaN NaN 89.1308 460.622 62.3671 316.42 population doubling time
a_b d 10.1785 10.1777 9.82159 9.82159 9.55329 9.55329 age at birth
t_j d 22.1298 22.122 18.6071 18.6071 16.3394 16.3394 time since birth at metam
t_p d 2592.24 2575.45 1052.87 1052.87 778.757 778.757 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 0.999999 0.345415 0.999999 0.294809 0.999999 0.258142 survival probability at metam
S_p - 0.999997 0.0992095 0.999998 0.098864 0.999998 0.0986459 survival probability at puberty
theta_0b - 0.00252635 0.448783 0.0734588 0.511651 0.100633 0.541812 frac of ind that is embryo
theta_bj - 0.00252911 0.276657 0.068142 0.291871 0.0906005 0.291677 frac of ind between b and j
theta_jp - 0.00296963 0.104058 0.0566968 0.0799491 0.0587572 0.0615274 frac of ind between j and p
theta_pi - 0.991975 0.170502 0.801702 0.116529 0.750009 0.104984 frac of ind that is adult
L_bi cm 3.9862 0.567102 1.05162 0.283945 0.896567 0.263674 mean structural length of post-natals
L2_bi cm^2 16.9772 1.54455 1.80931 0.33807 1.36025 0.271874 mean squared structural length of post-natals
L3_bi cm^3 74.1173 6.14262 4.07642 1.01154 2.80041 0.780158 mean cubed structural length of post-natals
Ww_bi g 121.585 10.0784 7.3782 1.83085 5.5426 1.5441 mean wet weight of post-natals
L_pi cm 4.00744 1.53613 1.1917 0.765587 1.04489 0.703332 mean structural length of adults
L2_pi cm^2 17.0712 4.95202 2.08727 1.35781 1.62632 1.12438 mean squared structural length of adults
L3_pi cm^3 74.5282 19.8525 4.71056 4.23056 3.35729 3.39583 mean cubed structural length of adults
Ww_pi g 122.259 32.5726 8.52597 7.65719 6.64477 6.72105 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 1.25224 0.113661 0.168905 0.0311298 0.153587 0.0301748 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 0.187687 0.0488974 0.202646 0.0566368 yield of living structure on food
Y_VX_d mol/mol 0.0194517 0.0468144 9.98066e-05 0.101985 4.52145e-05 0.115724 yield of dead structure on food
Y_EX mol/mol 0 0 0.152021 0.0396054 0.198433 0.0554593 yield of living reserve on food
Y_EX_d mol/mol 0.0124576 0.0299955 8.08404e-05 0.0826045 4.42744e-05 0.113318 yield of dead reserve on food
Y_CX mol/mol 0.858716 0.813815 0.550737 0.617533 0.489456 0.549487 yield of CO2 on food
Y_HX mol/mol 0.617798 0.585495 0.396225 0.444281 0.352136 0.395326 yield of H2O on food
Y_OX mol/mol -0.933853 -0.885024 -0.598926 -0.671567 -0.532283 -0.597567 yield of O2 on food
Y_NX mol/mol 0.128807 0.122072 0.0826105 0.09263 0.0734184 0.0824231 yield of N-waste on food
mu_TX J/mol 455922 432595 294951 329844 261992 293492 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