Predictions & Data for this entry

Model: abj climate: MC migrate:
COMPLETE = 2.5 ecozone: MANE, MANW, MPE, MIW food: bjP, biD, jiCi, jiS
MRE = 0.121 habitat: 0bMcb, bjMp, jiMcb, jiMi gender: D
SMSE = 0.111 embryo: Mbf reprod: O

Zero-variate data
tj_12 80 67.36 (0.158)dtime since birth at metamexoticsguide
tj_25 17 18.55 (0.09125)dtime since birth at metamexoticsguide
tp250 278.8 (0.1153)dtime since birth at pubertyADW
am2190 2150 (0.0184)dlife spanexoticsguide
Lp3.3 2.589 (0.2156)cmcarapace width at pubertyBehrDumb2005
Li 6 7.871 (0.3119)cmultimate carapace width for femalesBehrDumb2005
Lim7.5 7.775 (0.03663)cmultimate carapace width for malesBehrDumb2005
Wwi149 140.6 (0.05647)gultimate wet weight glaucus, BehrDumb2005
Ri547.9 520.2 (0.05055)#/dmaximum reprod rateexoticsguide
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.107)time since birthcarapace widthBehrDumb2005
tWC_18 see Fig. 2 (0.2129)time since birthcarbon weightDawiPusc1986
tWC_12 see Fig. 2 (0.1123)time since birthcarbon weightDawiPusc1986
LW see Fig. 3 (0.08485)carapace widthwet weightMuncSpar1982
Pseudo-data at Tref
DataGeneralised animalCarcinus maenasUnitDescription
v 0.02 0.04669cm/denergy conductance
kap 0.8 0.9878-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 38.37J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8083-growth efficiency


  • C. maenas has a planktontic zoea stage, for by a planktontic megalopae stage and a bentic juvinle/adult stage (ref: ADW)
  • Migrates yearly to deeper waters for spawning; copulation is directly after moulting; females carry eggs for several months (ref: ADW)
  • crabs donot feed when tempertures drop below 7 C, and cannot molt in temperatures below 10 C (ref: exoticsguide, BehrDumb2005)
  • Sexual maturity at moult 11 or 12 (ref: BehrDumb2005)
  • there is no indication of a terminal instar in C. maenas, (ref: BehrDumb2005)


  • Males are assumed to differ from females by {p_Am} only


Bibtex file with references for this entry

Bas Kooijman, 2016/02/09

accepted: 2016/02/09

refer to this entry as: AmP Carcinus maenas version 2016/02/09