Octopus maya (Yucatan octopus):  

Predictions & Data for this entry

Model:  abj  

COMPLETE = 2.5
MRE = 0.227
SMSE = 0.381

Zero-variate data
DataObservedPredicted(RE)UnitDescriptionReference
ab 45 29.1 (0.3534)dage at birthHeuk1976
tp183 172.5 (0.05758)dtime since birth at pubertyHeuk1976
am255 255.1 (0.0003831)dlife spanHeuk1976
Lb1.7 0.3039 (0.8213)cmmantle length at birthHeuk1976
Wwb0.1 0.004973 (0.9503)gwet weight at birthHeuk1976
Wwi3250 3580 (0.1015)gultimate wet weightHeuk1976
Ni4500 4497 (0.0006099)#cum reprod at deathHeuk1976
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tW see Fig. 1 (0.1225)time since birthwet weightHeuk1976
Pseudo-data at Tref
DataGeneralised animalOctopus mayaUnitDescription
v 0.02 0.003347cm/denergy conductance
kap 0.8 0.7452-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 19J/d.cm^3vol-spec som maint
k_J 0.002 0.0011/dmaturity maint rate coefficient
kap_G 0.8 0.802-growth efficiency

Facts

  • semelparous: death at first spawning, 10 d after last hatch (ref: Wiki)
  • Digestion efficiency independent of feeding rate (ref: Heuk1976)
  • small eggs with a planktontic larval stage, difficult to culture (ref: Heuk1976)
  • hatches using a hatching gland (Hoyles organ) (ref: Heuk1976)
  • males and females grow at the same rate (ref: Heuk1976)

Discussion

  • z is not well-fixed by data, size ultimate size is much larger than size at death
  • in view of fitting results, puberty does not coincide with mating and part of structure converts to eggs just before death
  • Data point Lb is hard to believe, given Wwb

Bibliography

  • Wiki
  • Kooy2010
  • Heuk1976

Bibtex files with references for this entry


Bas Kooijman, 2012/12/11 (last modified by Bas Kooijman 2016/01/05)

accepted: 2016/01/10

refer to this entry as: AmP Octopus maya version 2016/01/10 bio.vu.nl/thb/deb/deblab/add_my_pet/