Astacus astacus (European crayfish):  

Predictions & Data for this entry

Model:  abj  

MRE = 0.056
SMSE = 0.072

Zero-variate data
ab91.5 91.57 (0.0007271)dage at birthHessTaug1987
tj365 345.3 (0.05399)dtime since birth at metamKoesSoes2011
tp1460 1600 (0.09572)dtime since birth at puberty for femalesAbra1971
tpm1095 1105 (0.009102)dtime since birth at puberty for malesAbra1971
am7300 7304 (0.0005484)dlife spanSousHold2006
Lj2.3 2.091 (0.09081)cmtotal length at independenceAbra1971
Lp7.7 7.687 (0.001633)cmtotal length at pubertyAbra1971
Li 12 12.34 (0.02799)cmultimate total length for femalesWiki
Lim 16 15.75 (0.0155)cmultimate total length for malesWiki
L24.7 4.195 (0.1073)cmtotal length at 2yr for femalesAbra1971
L2m4.9 5.189 (0.05896)cmtotal length at 2yr for malesAbra1971
Wwb0.014 0.01414 (0.01006)gdry weight at birthAbra1971
Wwj0.32 0.3458 (0.08073)gwet weight at metamKoesSoes2011
Wwp 18 17.18 (0.04546)gwet weight at pubertyAbra1971
Wwi68.2 71 (0.041)gultimate wet weight for femalesMull1973
Wwim161.5 160.1 (0.008374)gultimate wet weight for malesMull1973
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
LN see Fig. 1 (0.2931)total lengthnumber of eggsAbra1971
LW see Fig. 2 (0.06436)total lengthwet weightAbra1971
Pseudo-data at Tref
DataGeneralised animalAstacus astacusUnitDescription
v 0.02 0.02422cm/denergy conductance
kap 0.8 0.9182-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 29.69J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8008-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)
  • TL 11.5 cm weighs 60 g (ref: Mull1973)


  • 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.
  • [Mull1973] H. Müller. Die Flusskrebse; die langschwänzigen Decapoda Mitteleuropas und ihre wirtschaftliche Bedeutung, volume 121 of Die Neue Brehm-Buecherei. A. Ziemsen Verlag, 1973.
  • [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 files with references for this entry

Bas Kooijman, 2017/08/28

accepted: 2017/08/28

refer to this entry as: AmP Astacus astacus version 2017/08/28