Raja polystigma: Population traits

at T = 14 °C with background hazards for embryo, juv, adult: 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 std f_min f_max date: 2025/05/22
symbol units thinning falsethinning true thinning falsethinning true description
femalemale femalemale femalemale femalemale
f - 0.740654 0.740654 0.840122 0.840122 1 1 1 1 scaled functional response
r 1/d 0 0 0 0 0.000930957 0.000930957 0.00019214 0.00019214 spec pop growth rate
t2 d NaN NaN NaN NaN 744.553 744.553 3607.51 3607.51 population doubling time
a_b d 156.797 157.698 153.613 154.477 149.435 150.247 149.435 150.247 age at birth
t_p d 8273.2 NaN 4721.22 5210.41 3234.18 3427.27 3234.18 3427.27 time since birth at puberty
S_b - 0.999938 0.999935 0.999941 0.999938 0.999946 0.999943 0.999946 0.999943 survival probability at birth
S_p - 0.999651 0.999631 0.583677 0.591014 0.999707 0.999691 0.548015 0.55495 survival probability at puberty
theta_0b - 0.0218725 0.0223158 0.195313 0.191139 0.131487 0.132224 0.268515 0.264027 frac of ind that is embryo
theta_bp - 0.0218884 0.0223323 0.148928 0.146665 0.114469 0.115025 0.193014 0.190957 fraction of individuals that is juvenile
theta_pi - 0.956239 0.955352 0.655758 0.662196 0.754044 0.752751 0.538471 0.545016 frac of ind that is adult
L_bi cm 4.8087 4.64992 3.47989 3.41678 3.33278 3.26218 3.042 3.00532 mean structural length of post-natals
L2_bi cm^2 25.0856 23.4243 15.8586 15.127 13.6124 12.9733 12.8172 12.3706 mean squared structural length of post-natals
L3_bi cm^3 137.039 123.534 85.2034 78.5866 64.8513 60.0082 68.7002 64.3206 mean cubed structural length of post-natals
Ww_bi g 228.379 203.063 149.62 135.974 123.212 112.168 130.525 120.229 mean wet weight of post-natals
L_pi cm 4.88774 4.72703 3.9619 3.87381 3.62695 3.54828 3.63847 3.57699 mean structural length of adults
L2_pi cm^2 25.6175 23.929 19.0391 18.0694 15.3813 14.6585 16.7258 16.0389 mean squared structural length of adults
L3_pi cm^3 140.118 126.363 103.975 95.4337 74.2749 68.7588 92.3665 85.9285 mean cubed structural length of adults
Ww_pi g 233.51 207.714 182.585 165.123 141.116 128.525 175.488 160.619 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 0.696186 0.627901 0.499221 0.459943 0.510059 0.469528 0.480263 0.447714 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 0.118366 0.118981 0.0274851 0.0276037 yield of living structure on food
Y_VX_d mol/mol 0.0445959 0.0451515 0.0796923 0.0804418 0.00528029 0.00547368 0.0833068 0.0839384 yield of dead structure on food
Y_EX mol/mol 0 0 0 0 0.106519 0.10342 0.0247342 0.0239934 yield of living reserve on food
Y_EX_d mol/mol 0.0297243 0.0290679 0.0602505 0.0587421 0.00475181 0.00475778 0.074969 0.0729602 yield of dead reserve on food
Y_CX mol/mol 0.755082 0.755175 0.694381 0.695083 0.606529 0.608643 0.62912 0.63097 yield of CO2 on food
Y_HX mol/mol 0.648509 0.648589 0.596375 0.596978 0.520923 0.522738 0.540325 0.541914 yield of H2O on food
Y_OX mol/mol -0.887731 -0.887841 -0.816367 -0.817192 -0.713082 -0.715566 -0.739641 -0.741816 yield of O2 on food
Y_NX mol/mol 0.0612229 0.0612304 0.0563012 0.0563581 0.049178 0.0493494 0.0510097 0.0511597 yield of N-waste on food
mu_TX J/mol 426384 426467 392647 393095 343478 344754 356044 357163 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