Urechis caupo: Population traits

at T = 17 °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: 2024/12/04
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.1611 0.1611 0.58055 0.58055 1 1 scaled functional response
r 1/d 0 0 0.0410075 0.00873296 0.0565251 0.0112953 spec pop growth rate
t2 d NaN NaN 16.9029 79.3714 12.2626 61.3662 population doubling time
a_b d 2.33681 2.33681 1.93024 1.93024 1.81532 1.81532 age at birth
t_j d 9.55734 9.55734 3.87513 3.87513 2.97171 2.97171 time since birth at metam
t_p d 1986.92 1986.92 315.287 315.287 226.215 226.215 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.452039 1 0.197414 1 0.136617 survival probability at metam
S_p - 1 0.0388776 1 0.0384953 1 0.0384418 survival probability at puberty
theta_0b - 0.000550285 0.416954 0.075767 0.606768 0.0971259 0.654908 frac of ind that is embryo
theta_bj - 0.000552579 0.288956 0.0703366 0.297245 0.0880502 0.280497 frac of ind between b and j
theta_jp - 0.00170742 0.217872 0.0654578 0.0578714 0.0515579 0.0313062 frac of ind between j and p
theta_pi - 0.99719 0.0762178 0.788439 0.0381157 0.763266 0.0332891 frac of ind that is adult
L_bi cm 1.51108 0.06365 0.227628 0.0259976 0.218737 0.0259121 mean structural length of post-natals
L2_bi cm^2 2.39566 0.0601204 0.10046 0.00435642 0.0942851 0.00439425 mean squared structural length of post-natals
L3_bi cm^3 3.86325 0.0905994 0.0643645 0.00400601 0.0599309 0.00435028 mean cubed structural length of post-natals
Ww_bi g 5.85615 0.137336 0.184018 0.0114531 0.251837 0.0182804 mean wet weight of post-natals
L_pi cm 1.51446 0.379168 0.263232 0.117413 0.254923 0.116975 mean structural length of adults
L2_pi cm^2 2.40109 0.458018 0.11768 0.0423053 0.111443 0.0428985 mean squared structural length of adults
L3_pi cm^3 3.872 0.693025 0.075448 0.0412785 0.0708906 0.0450463 mean cubed structural length of adults
Ww_pi g 5.86942 1.05053 0.215705 0.118015 0.297891 0.18929 mean wet weight of adults
R 1/d 228.855 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.0264783 0.000663272 0.00401371 0.000169507 0.00649151 0.000294705 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 0.164401 0.0515972 0.130463 0.0416836 yield of living structure on food
Y_VX_d mol/mol 0.010466 0.0267686 1.18089e-06 0.105496 4.69362e-07 0.0851247 yield of dead structure on food
Y_EX mol/mol 0 0 0.30562 0.0959189 0.417757 0.133476 yield of living reserve on food
Y_EX_d mol/mol 0.005399 0.0138089 2.19526e-06 0.196117 1.50296e-06 0.27258 yield of dead reserve on food
Y_CX mol/mol 0.87476 0.850047 0.420601 0.441495 0.342403 0.357761 yield of CO2 on food
Y_HX mol/mol 0.631179 0.61318 0.300401 0.315618 0.243446 0.254632 yield of H2O on food
Y_OX mol/mol -0.951302 -0.924427 -0.457404 -0.480126 -0.372363 -0.389065 yield of O2 on food
Y_NX mol/mol 0.131214 0.127507 0.0630902 0.0662243 0.0513604 0.0536641 yield of N-waste on food
mu_TX J/mol 464298 451521 222207 233333 177501 185765 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