Predictions & Data for this entry

Model: abj climate: Cfa, Cfb, Dfa, Dfb migrate:
COMPLETE = 2.5 ecozone: TH food: bjP, biD, jiCi, jiS
MRE = 0.087 habitat: 0iFr, 0iFl gender: D
SMSE = 0.092 embryo: Fbf reprod: O

Zero-variate data
ab91.5 91.4 (0.001058)dage at birthHessTaug1987
tj365 503.6 (0.3798)dtime since birth at metamKoesSoes2011
tp1095 905.4 (0.1731)dtime since birth at puberty for femalesAbra1971
tpm730 731.9 (0.002542)dtime since birth at puberty for malesAbra1971
am7300 7302 (0.0002896)dlife spanSousHold2006
Lj 4 3.832 (0.0421)cmtotoal length at settleAbra1971
Lp 8 8.406 (0.05076)cmtotal length at pubertySousHold2006
Li 12 12.19 (0.01614)cmultimate total length for femalesKoesSoes2011
Lim 16 15.46 (0.03394)cmultimate total length for malesKoesSoes2011
L27.9 8.121 (0.02798)cmtotal length at 2yr for femalesAbra1971
L2m8.2 9.976 (0.2166)cmtotal length at 2yr for malesAbra1971
Wwb0.0042 0.004287 (0.02063)gdry weight at birthAbra1971
Wwj3.3 2.848 (0.1369)gwet weight at metamKoesSoes2011
Wwp 29 30.08 (0.03716)gwet weight at pubertyAbra1971
Wwi89.4 91.81 (0.02691)gultimate wet weight for femalesAbra1971
Wwim212 204.2 (0.03702)gultimate wet weight for malesAbra1971
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
LN see Fig. 1 (0.2387)total lengthnumber of eggsAbra1971
LW see Fig. 2 (0.1237)total lengthwet weightAbra1971
Pseudo-data at Tref
DataGeneralised animalPacifastacus leniusculusUnitDescription
v 0.02 0.02207cm/denergy conductance
kap 0.8 0.9919-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 100.5J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8015-growth efficiency


  • Eggs are glued to hairs under the abdome; after hatching the young continue to cling to the hairs, moult 2 or 3 times and a miniature crayfish walks off (ref: KoesSoes2011)


  • males are assumed to differ from females by {p_Am} and E_Hp only


  • [Wiki]
  • [Abra1971] S. A. A. Abrahamsson. Density, growth and reproduction in populations of Astacus astacus and Pacifastacus leniusculus in an isolated pond. Oikos, 2:373--380, 1971.
  • [HessTaug1987] D. O. Hessen, T. Taugbøl, E. Fjeld, and J. Skurdal. Egg development and lifecycle timing in the noble crayfish (Astacus astacus). Aquaculture, 64:77--82, 1987.
  • [KoesSoes2011] B. Koese and Soes. M. De Nederlandse rivierkreeften (Astacoidea & Parastacoidea), volume 6 of Entomologische tabellen. Ned. Entomol. Vereniging, 2011.
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [SousHold2006] C. Souty-Grosset, D. M. Holdich, P. Y. Noël, J. D. Reynolds, and P. Haffner. Atlas of crayfish in Europe. Entomologische tabellen. Publications Scientifiques du MNHN, Paris, 2006.

Bibtex file with references for this entry

Bas Kooijman, 2017/08/28

accepted: 2017/08/28

refer to this entry as: AmP Pacifastacus leniusculus version 2017/08/28