Strongylocentrotus purpuratus (Purple sea urchin):  

Implied properties for this entry

Model:  abj  

Energy investment, cumulated over the embryo period (left), and allocation during ontogeny

Exploding sectors mean dissipation; numbers denote fractions of mobilized reserve. Endpoints are somatic maintenance S, growth G, maturity maintenance J, maturity or reproduction R. Growth is splitted into overhead and flux fixed in tissue. Reproduction overhead is not idicated, since it is pays at conversion of buffer to eggs/foetuses. The change in reserve equals assimilation p_A minus mobilization p_C. Wet weight W_w and total energy E_W exclude the reproduction buffer in adults. Pies link to budget pages.

Implied properties at typical temperature (7 deg. C) and abundant food
symbol value units description
z 0.5206 -zoom factor
c_T 0.281859 -Temperature Correction factor
s_M 13.575 -acceleration factor at f=1
s_Hbp 3.05129e-08 -maturity ratio
s_HLbp 0.829768 -maturity density ratio at f=1
s_s 0.00059913 -supply stress
E_0 0.000754895 Jinitial reserve
Wd_0 3.28036e-08 ginitial dry weight
a_b 4.52699 dage at birth
a_p 467.925 dage at puberty
a_99 7003.8 dage at length 0.99 * L_i
Wd_b 2.41031e-08 gdry weight at birth
Wd_p 0.655462 gdry weight at puberty
Wd_i 41.9464 gultimate dry weight
L_b 0.00587541 cmstructural length at birth
L_p 1.76684 cmstructural length at puberty
L_i 7.06717 cmultimate structural length
W_dWm 138.095 gwet weight at maximum growth
dWm 0.0405436 g/dmaximum growth in wet weight
N_i 1.71208e+10 #life time reproductive output
R_i 739611 1/dultimate reproduction rate
del_Wb 5.74617e-10 -birth weight as fraction of maximum weight
del_Wp 0.0156262 -puberty weight as fraction of maximum weight
del_V 0.757327 -fraction of max weight that is structure
r_B 0.000660582 1/dvon Bertalanffy growth rate
E_m 663.658 J/cm^3[E_m], reserve capacity
t_starve 116.889 dmaximum survival time when starved
t_E 90.2924 dmaximum reserve residence time
xi_WE 21.4282 kJ/ gwhole-body energy density of dry biomass (no reprod buffer)
eb_min_G 0.0112484 -scaled reserve density whereby growth ceases at birth
eb_min_R 0.00266622 -scaled reserve density whereby maturation ceases at birth
J_Ob 1.14262e-10 mol/dO2 flux at birth
J_Op 0.000196633 mol/dO2 flux at puberty
J_Oi 0.00487883 mol/dultimate O2 flux