Predictions & Data for this entry

Model: std climate: Cfa, Dfa migrate: Mp phylum:
COMPLETE = 2.4 ecozone: THn food: biD class:
MRE = 0.027 habitat: 0iFc gender: D order:
SMSE = 0.002 embryo: Ft reprod: Os family:

Zero-variate data

Data Observed Predicted (RE) Unit Description Reference
am 2190 2197 (0.003314) d life span Wiki
Lp 10.5 10.52 (0.002012) cm total length at puberty fishbase
Li 20 19.6 (0.01998) cm ultimate total length fishbase
Wwb 0.00041 0.0004113 (0.0032) g wet weight at birth msstate
Wwp 2.155 2.161 (0.00301) g wet weight at puberty fishbase
Wwi 14 13.98 (0.001755) g ultimate wet weight fishbase
NR 1700 1799 (0.05824) # eggs at the end of life Walk2007

Uni- and bivariate data

Data Figure Independent variable Dependent variable (RE) Reference
tL time since birth total length (0.04537) BeamAust1985

Pseudo-data at Tref = 20°C

Data Generalised animal Ichthyomyzon greeleyi Unit Description
v 0.02 0.0182 cm/d energy conductance
kap 0.8 0.9095 - allocation fraction to soma
kap_R 0.95 0.95 - reproduction efficiency
p_M 18 18.02 J/d.cm^3 vol-spec som maint
k_J 0.002 0.002 1/d maturity maint rate coefficient
kap_G 0.8 0.7997 - growth efficiency

Discussion

  • assumption: Ww_i excludes eggs

Facts

  • spawns once at end of life; no feeding as adult, no parasitic stage (Ref: Wiki)
  • length-weight: Ww in g = 10^(-2.632+2.904*log10(TL in cm)) (Ref: BeamAust1985)
  • I. gagei: Ammocoetes do not have a predetermined sex; instead, they all rapidly produce eggs until about 17 months of age. Sex is determined by environmental factors including stream temperature, population density, average growth rate, and pH. Males then re-absorb the eggs, though it is not uncommon for male ammocoetes to still have eggs in their testes. (Ref: msstate)

Bibliography

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