Trichiurus nanhaiensis: 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: 2025/05/20
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.354398 0.406205 0.703103 0.703103 1 1 scaled functional response
r 1/d 0 0 0.0059477 0.000452801 0.00896007 0.000677384 spec pop growth rate
t2 d NaN NaN 116.54 1530.8 77.3596 1023.27 population doubling time
a_b d 11.1627 10.9094 9.95869 9.95869 9.41869 9.41869 age at birth
t_j d 66.8029 59.0908 37.1989 37.1989 28.4657 28.4657 time since birth at metam
t_p d 6068.64 3405.04 1385.9 1385.9 956.838 956.838 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 0.999999 0.529163 0.999999 0.396416 0.999999 0.31831 survival probability at metam
S_p - 0.999989 0.0318284 0.999996 0.0315476 0.999998 0.0314405 survival probability at puberty
theta_0b - 0.00159907 0.369099 0.0573895 0.466504 0.0807735 0.520809 frac of ind that is embryo
theta_bj - 0.00160378 0.273835 0.0542156 0.303773 0.074395 0.309039 frac of ind between b and j
theta_jp - 0.00799395 0.289245 0.132892 0.18246 0.132554 0.129022 frac of ind between j and p
theta_pi - 0.988803 0.0678212 0.755503 0.047263 0.712278 0.0411293 frac of ind that is adult
L_bi cm 4.29437 0.244589 1.0385 0.175689 0.932203 0.168171 mean structural length of post-natals
L2_bi cm^2 20.1572 0.589157 1.99323 0.286455 1.6631 0.263289 mean squared structural length of post-natals
L3_bi cm^3 97.7847 2.87117 5.28979 1.68829 4.23219 1.79375 mean cubed structural length of post-natals
Ww_bi g 114.25 3.4253 7.0569 2.25228 6.24301 2.646 mean wet weight of post-natals
L_pi cm 4.33477 1.46238 1.26366 0.976188 1.16556 0.916626 mean structural length of adults
L2_pi cm^2 20.3527 5.39386 2.48227 3.12604 2.14094 2.95629 mean squared structural length of adults
L3_pi cm^3 98.7338 26.6986 6.59914 19.0444 5.46099 20.8855 mean cubed structural length of adults
Ww_pi g 115.359 31.8514 8.80365 25.4064 8.05564 30.8087 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 0.419904 0.013978 0.0826632 0.0117013 0.098189 0.0152913 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 0.380606 0.0653314 0.386202 0.0794604 yield of living structure on food
Y_VX_d mol/mol 0.0481587 0.108414 0.000155618 0.157288 6.25461e-05 0.173646 yield of dead structure on food
Y_EX mol/mol 0 0 0.127145 0.0218246 0.183493 0.0377535 yield of living reserve on food
Y_EX_d mol/mol 0.00810911 0.0209237 5.19858e-05 0.0525438 2.97171e-05 0.0825035 yield of dead reserve on food
Y_CX mol/mol 0.834357 0.761287 0.382666 0.593637 0.320838 0.517261 yield of CO2 on food
Y_HX mol/mol 0.600274 0.547704 0.275307 0.427089 0.230825 0.372141 yield of H2O on food
Y_OX mol/mol -0.907363 -0.8279 -0.416149 -0.64558 -0.348911 -0.562522 yield of O2 on food
Y_NX mol/mol 0.125154 0.114193 0.0573999 0.0890455 0.0481257 0.0775892 yield of N-waste on food
mu_TX J/mol 443961 406785 212161 320287 178430 279805 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