Piaractus mesopotamicus: 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 - 0.560056 0.560056 0.560056 0.560056 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.0107403 0.0107403 0.00230745 0.00230745 spec pop growth rate
t2 d NaN NaN NaN NaN 64.5372 64.5372 300.395 300.395 population doubling time
a_b d 5.09022 5.13639 5.09022 5.13639 4.77358 4.80691 4.77358 4.80691 age at birth
t_j d 1.62813 1.69472 1.62813 1.69472 1.22919 1.26622 1.22919 1.26622 time since birth at metam
t_p d 3116.19 NaN 3116.19 NaN 903.979 966.448 903.979 966.448 time since birth at puberty
S_b - 1 1 1 1 1 1 1 1 survival probability at birth
S_j - 1 1 0.596752 0.596855 1 1 0.596156 0.59621 survival probability at metam
S_p - 1 1 0.320262 0.328229 1 1 0.266287 0.271782 survival probability at puberty
theta_0b - 0.00134678 0.00139471 0.404753 0.396036 0.0498742 0.0502165 0.488233 0.482581 frac of ind that is embryo
theta_bj - 0.000431611 0.000461047 0.10132 0.102268 0.0124619 0.0128302 0.0977128 0.0987925 frac of ind between b and j
theta_jp - 0.000917788 0.000936301 0.120553 0.117647 0.0350264 0.0349642 0.143023 0.141659 frac of ind between j and p
theta_pi - 0.997304 0.997208 0.373373 0.384049 0.902638 0.901989 0.271032 0.276967 frac of ind that is adult
L_bi cm 4.10142 3.82655 0.482416 0.477523 0.841097 0.815151 0.224271 0.223231 mean structural length of post-natals
L2_bi cm^2 18.298 15.9191 1.30682 1.21697 1.22563 1.14574 0.223218 0.216611 mean squared structural length of post-natals
L3_bi cm^3 84.3074 68.3831 5.35852 4.65578 2.47293 2.22373 0.626521 0.582772 mean cubed structural length of post-natals
Ww_bi g 180.329 140.959 11.4616 9.59701 7.50194 6.4377 1.90063 1.68713 mean wet weight of post-natals
L_pi cm 4.10687 3.83181 0.727996 0.711586 0.881319 0.854313 0.359493 0.354781 mean structural length of adults
L2_pi cm^2 18.3227 15.9414 2.08049 1.91107 1.28979 1.20614 0.416741 0.400073 mean squared structural length of adults
L3_pi cm^3 84.4215 68.4789 8.54255 7.32159 2.60301 2.34153 1.18265 1.08836 mean cubed structural length of adults
Ww_pi g 180.573 141.156 18.272 15.092 7.89654 6.77875 3.5877 3.15081 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 1.28701 1.0433 0.0919131 0.0797544 0.153974 0.134123 0.0280353 0.0253502 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 0.172497 0.178072 0.0515659 0.0530458 yield of living structure on food
Y_VX_d mol/mol 0.024819 0.0254363 0.0552884 0.0567442 5.75142e-05 6.37123e-05 0.102587 0.105553 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.350792 0.337446 0.104865 0.100522 yield of living reserve on food
Y_EX_d mol/mol 0.0282674 0.0269957 0.0629702 0.0602231 0.000116962 0.000120735 0.208624 0.200024 yield of dead reserve on food
Y_CX mol/mol 0.837539 0.838193 0.772366 0.773658 0.367162 0.374923 0.422983 0.43148 yield of CO2 on food
Y_HX mol/mol 0.602563 0.603033 0.555675 0.556604 0.264152 0.269736 0.304313 0.310426 yield of H2O on food
Y_OX mol/mol -0.910823 -0.911535 -0.839949 -0.841353 -0.399288 -0.407728 -0.459994 -0.469235 yield of O2 on food
Y_NX mol/mol 0.125631 0.125729 0.115855 0.116049 0.0550742 0.0562384 0.0634474 0.064722 yield of N-waste on food
mu_TX J/mol 444543 444934 410222 411005 193223 197771 223004 227900 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