Brachyplatystoma rousseauxii: Population traits

at T = 25 °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: 2023/11/01
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.358976 0.358976 0.358976 0.358976 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0144903 0.0144903 0.00303031 0.00303031 spec pop growth rate
t2 d NaN NaN NaN NaN 47.8351 47.8351 228.738 228.738 population doubling time
a_b d 5.04962 5.02613 5.04962 5.02613 4.97421 4.95796 4.97421 4.95796 age at birth
t_j d 1.51809 1.48894 1.51809 1.48894 1.42614 1.41806 1.42614 1.41806 time since birth at metam
t_p d 2112.93 75.5968 2112.93 75.5968 734.614 70.0739 734.614 70.0739 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_j - 1 1 0.434714 0.434392 1 1 0.433706 0.432459 survival probability at metam
S_p - 1 1 0.160926 0.157969 1 1 0.151531 0.150219 survival probability at puberty
theta_0b - 0.000805714 0.000731318 0.568142 0.579133 0.0693877 0.0692264 0.619364 0.621528 frac of ind that is embryo
theta_bj - 0.00024282 0.000217309 0.116185 0.116734 0.019034 0.0189306 0.119541 0.119416 frac of ind between b and j
theta_jp - 0.000564873 0.000516248 0.105287 0.107037 0.0456824 0.0455931 0.11167 0.111432 frac of ind between j and p
theta_pi - 0.998387 0.998535 0.210387 0.197096 0.865896 0.86625 0.149425 0.147624 frac of ind that is adult
L_bi cm 4.28936 5.32698 0.589182 0.566444 0.718781 0.731724 0.159403 0.158689 mean structural length of post-natals
L2_bi cm^2 19.0759 29.5525 1.99977 2.30243 0.933085 0.976665 0.13212 0.133167 mean squared structural length of post-natals
L3_bi cm^3 85.9351 166.344 8.57603 12.2609 1.72777 1.87573 0.363021 0.384739 mean cubed structural length of post-natals
Ww_bi g 1385.25 3320.95 138.243 244.781 74.4995 100.969 15.6531 20.7102 mean wet weight of post-natals
L_pi cm 4.29278 5.33085 1.1505 1.14577 0.767708 0.781444 0.318441 0.318299 mean structural length of adults
L2_pi cm^2 19.0913 29.5742 4.10142 4.9127 1.0025 1.04909 0.331299 0.336096 mean squared structural length of adults
L3_pi cm^3 86.0047 166.466 17.6037 26.181 1.85688 2.01543 0.924405 0.98604 mean cubed structural length of adults
Ww_pi g 1386.37 3323.39 283.766 522.688 80.0666 108.489 39.8594 53.0777 mean wet weight of adults
R 1/d 0 2895.45 0 456.668 0 15.6589 0 7.00297 mean reproduction rate of adults
J_X g/d 12.2344 23.7792 1.28251 1.85257 1.66835 2.19243 0.236075 0.29874 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 0.0150064 0.0123972 0.00465983 0.00390266 yield of living structure on food
Y_VX_d mol/mol 0.0013006 0.00120431 0.00343949 0.00313322 1.5464e-07 1.01853e-07 0.00921968 0.00772511 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.632053 0.654935 0.196267 0.206174 yield of living reserve on food
Y_EX_d mol/mol 0.0196647 0.022839 0.052004 0.0594197 6.51325e-06 5.38082e-06 0.388323 0.408111 yield of dead reserve on food
Y_CX mol/mol 0.86966 0.866582 0.835181 0.828072 0.243559 0.223288 0.292155 0.264712 yield of CO2 on food
Y_HX mol/mol 0.625672 0.623457 0.600867 0.595752 0.175227 0.160643 0.210189 0.190446 yield of H2O on food
Y_OX mol/mol -0.945755 -0.942408 -0.90826 -0.900528 -0.26487 -0.242825 -0.317719 -0.287875 yield of O2 on food
Y_NX mol/mol 0.130449 0.129987 0.125277 0.124211 0.0365338 0.0334932 0.0438233 0.0397069 yield of N-waste on food
mu_TX J/mol 461034 459336 442178 438253 117364 106084 144036 128829 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