Mya arenaria: Population traits

at T = 12 °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: 2022/12/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.110635 0.142137 0.571069 0.571069 1 1 scaled functional response
r 1/d 0 0 0.0112811 0.000832363 0.0207136 0.00144892 spec pop growth rate
t2 d NaN NaN 61.4432 832.747 33.4634 478.388 population doubling time
a_b d 4.5547 4.4266 3.72254 3.72254 3.44358 3.44358 age at birth
t_j d 4675.2 3002.74 517.95 517.95 285.422 285.422 time since birth at metam
t_p d 14956.2 4996.71 760.585 760.585 416.331 416.331 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.987578 1 0.939923 1 0.901019 survival probability at metam
S_p - 0.955133 0.000204505 0.999675 0.000180313 0.999905 0.000177057 survival probability at puberty
theta_0b - 0.000398135 0.0117699 0.0404501 0.0601569 0.0680739 0.0975646 frac of ind that is embryo
theta_bj - 0.000422064 0.0122777 0.0394628 0.0591854 0.0641585 0.0933547 frac of ind between b and j
theta_jp - 0.424459 0.975009 0.917305 0.880371 0.865246 0.808817 frac of ind between j and p
theta_pi - 0.57472 0.000943485 0.00278165 0.000286735 0.00252195 0.000263363 frac of ind that is adult
L_bi cm 0.32821 0.0262171 0.0334069 0.0253635 0.0331471 0.0253811 mean structural length of post-natals
L2_bi cm^2 0.153582 0.00116578 0.00228025 0.00100524 0.0022283 0.00101238 mean squared structural length of post-natals
L3_bi cm^3 0.0779953 0.000256657 0.000503349 0.000367207 0.000493755 0.000425308 mean cubed structural length of post-natals
Ww_bi g 0.0781985 0.000257516 0.000510118 0.000372145 0.000505383 0.000435324 mean wet weight of post-natals
L_pi cm 0.501124 0.571759 0.44672 0.708629 0.45148 0.711781 mean structural length of adults
L2_pi cm^2 0.256663 0.349349 0.217859 0.735995 0.223751 0.785018 mean squared structural length of adults
L3_pi cm^3 0.13367 0.223936 0.11793 1.08093 0.124176 1.328 mean cubed structural length of adults
Ww_pi g 0.134018 0.224685 0.119516 1.09547 0.1271 1.35928 mean wet weight of adults
R 1/d 0 4.85458 31.2837 133.789 65.049 258.153 mean reproduction rate of adults
J_X g/d 0.000287434 1.19554e-06 1.21597e-05 3.6363e-06 2.06565e-05 6.49607e-06 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 0.46698 0.0840549 0.495119 0.0948632 yield of living structure on food
Y_VX_d mol/mol 0.0525517 0.165361 4.57444e-05 0.296173 1.3488e-05 0.336533 yield of dead structure on food
Y_EX mol/mol 0 0 0.00628006 0.00113039 0.0116597 0.00223396 yield of living reserve on food
Y_EX_d mol/mol 0.000136917 0.000553503 6.15181e-07 0.003983 3.17631e-07 0.00792509 yield of dead reserve on food
Y_CX mol/mol 0.837936 0.72471 0.417318 0.505284 0.383832 0.44907 yield of CO2 on food
Y_HX mol/mol 0.607969 0.525817 0.302788 0.366612 0.278492 0.325825 yield of H2O on food
Y_OX mol/mol -0.911256 -0.788122 -0.453834 -0.549497 -0.417418 -0.488363 yield of O2 on food
Y_NX mol/mol 0.12569 0.108707 0.0625977 0.0757926 0.0575749 0.0673605 yield of N-waste on food
mu_TX J/mol 446149 389515 235533 279574 218521 251214 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