Ilisha megaloptera: 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: 2025/05/23
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.246107 0.338716 0.669358 0.669358 1 1 scaled functional response
r 1/d 0 0 0.0203255 0.00232329 0.0295995 0.00339064 spec pop growth rate
t2 d NaN NaN 34.1024 298.347 23.4175 204.43 population doubling time
a_b d 8.54961 8.10219 7.26758 7.26758 6.86089 6.86089 age at birth
t_j d 21.8475 16.3714 9.5288 9.5288 7.29465 7.29465 time since birth at metam
t_p d 1437.69 585.073 254.713 254.713 182.352 182.352 time since birth at puberty
S_b - 0.999985 0.999987 0.99999 0.99999 0.999991 0.999991 survival probability at birth
S_j - 0.999915 0.464046 0.999952 0.303563 0.999961 0.229106 survival probability at metam
S_p - 0.999727 0.211953 0.999937 0.209487 0.999959 0.208726 survival probability at puberty
theta_0b - 0.00854679 0.33388 0.137308 0.468546 0.183697 0.526411 frac of ind that is embryo
theta_bj - 0.00856164 0.233419 0.118603 0.269946 0.150101 0.270131 frac of ind between b and j
theta_jp - 0.0133149 0.10979 0.0334676 0.03601 0.00850381 0.00703414 frac of ind between j and p
theta_pi - 0.969577 0.322911 0.710621 0.225498 0.657698 0.196424 frac of ind that is adult
L_bi cm 1.10063 0.358987 0.476934 0.28388 0.449027 0.274534 mean structural length of post-natals
L2_bi cm^2 1.39 0.337437 0.359916 0.245127 0.324182 0.241119 mean squared structural length of post-natals
L3_bi cm^3 1.86846 0.499093 0.372095 0.460965 0.329044 0.521738 mean cubed structural length of post-natals
Ww_bi g 2.25822 0.64238 0.583201 0.722491 0.607941 0.963961 mean wet weight of post-natals
L_pi cm 1.12266 0.616459 0.552471 0.510464 0.527417 0.49688 mean structural length of adults
L2_pi cm^2 1.42101 0.681292 0.433574 0.558781 0.398568 0.561629 mean squared structural length of adults
L3_pi cm^3 1.91057 1.02776 0.451286 1.08409 0.407902 1.25553 mean cubed structural length of adults
Ww_pi g 2.30912 1.32282 0.707321 1.69914 0.753639 2.31971 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.0329135 0.0109773 0.023312 0.0157761 0.0313971 0.0232051 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 0.324425 0.0678844 0.310205 0.0762344 yield of living structure on food
Y_VX_d mol/mol 0.101787 0.181078 0.00141359 0.184709 0.000580727 0.177677 yield of dead structure on food
Y_EX mol/mol 0 0 0.184061 0.0385139 0.262929 0.064616 yield of living reserve on food
Y_EX_d mol/mol 0.0212326 0.0519864 0.000801994 0.104794 0.000492222 0.150598 yield of dead reserve on food
Y_CX mol/mol 0.767606 0.657561 0.379923 0.494723 0.316418 0.4215 yield of CO2 on food
Y_HX mol/mol 0.55225 0.473079 0.273334 0.355926 0.227645 0.303246 yield of H2O on food
Y_OX mol/mol -0.834771 -0.715097 -0.413166 -0.538012 -0.344105 -0.458381 yield of O2 on food
Y_NX mol/mol 0.115141 0.0986341 0.0569885 0.0742085 0.0474627 0.063225 yield of N-waste on food
mu_TX J/mol 409929 353369 207906 267384 172226 227177 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