Thunnus maccoyii: Population traits

at T = 29 °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: 2025/05/22
symbol units thin falsethin truethin falsethin truethin falsethin truedescription
f - 0.632658 0.632658 0.816329 0.816329 1 1 scaled functional response
r 1/d 0 0 0.00417962 0.000856924 0.0052788 0.00107843 spec pop growth rate
t2 d NaN NaN 165.84 808.878 131.308 642.74 population doubling time
a_b d 2.85679 2.85679 2.81128 2.81128 2.78104 2.78104 age at birth
t_j d 0.0413744 0.0413744 0.0387386 0.0387386 0.0370721 0.0370721 time since birth at metam
t_p d 7213.06 7213.06 3043.49 3043.49 2423.02 2423.02 time since birth at puberty
S_b - 1 1 1 1 1 1 survival probability at birth
S_j - 1 0.966714 1 0.966712 1 0.966711 survival probability at metam
S_p - 1 0.309536 1 0.296019 1 0.287147 survival probability at puberty
theta_0b - 0.000163969 0.434414 0.0115845 0.456181 0.014454 0.465539 frac of ind that is embryo
theta_bj - 2.39515e-06 0.00623944 0.000160025 0.00622579 0.000192849 0.00614399 frac of ind between b and j
theta_jp - 0.000162983 0.23617 0.011386 0.242153 0.0141699 0.243356 frac of ind between j and p
theta_pi - 0.999671 0.323177 0.976869 0.29544 0.971183 0.284961 frac of ind that is adult
L_bi cm 19.8351 0.702351 2.95995 0.259161 2.54019 0.246969 mean structural length of post-natals
L2_bi cm^2 412.811 9.40196 15.6709 0.735614 11.8407 0.613529 mean squared structural length of post-natals
L3_bi cm^3 8740.42 185.553 113.837 7.50631 77.5854 5.88083 mean cubed structural length of post-natals
Ww_bi g 37084.3 787.274 590.165 38.9151 475.27 36.0246 mean wet weight of post-natals
L_pi cm 19.8384 1.18362 2.99417 0.425472 2.57679 0.409134 mean structural length of adults
L2_pi cm^2 412.879 16.4513 15.8561 1.35079 12.0157 1.14726 mean squared structural length of adults
L3_pi cm^3 8741.87 324.732 115.182 13.8167 78.7328 11.0296 mean cubed structural length of adults
Ww_pi g 37090.5 1377.79 597.14 71.6302 482.299 67.5649 mean wet weight of adults
R 1/d 0 0 0 0 0 0 mean reproduction rate of adults
J_X g/d 139.797 3.18394 6.84758 0.321435 6.33803 0.328407 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 0.104225 0.030017 0.0969286 0.0289673 yield of living structure on food
Y_VX_d mol/mol 0.00660175 0.0162868 3.26459e-06 0.0598706 1.66727e-06 0.0577061 yield of dead structure on food
Y_EX mol/mol 0 0 0.436112 0.125601 0.496833 0.148479 yield of living reserve on food
Y_EX_d mol/mol 0.0214085 0.0528158 1.36601e-05 0.250517 8.54603e-06 0.295788 yield of dead reserve on food
Y_CX mol/mol 0.862615 0.821522 0.350271 0.42462 0.296853 0.359684 yield of CO2 on food
Y_HX mol/mol 0.620759 0.591424 0.255003 0.308079 0.216868 0.261722 yield of H2O on food
Y_OX mol/mol -0.938093 -0.893406 -0.38092 -0.461774 -0.322828 -0.391156 yield of O2 on food
Y_NX mol/mol 0.129392 0.123228 0.0525407 0.0636929 0.0445279 0.0539526 yield of N-waste on food
mu_TX J/mol 457424 435308 180517 220691 150772 184816 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