Ferosagitta hispida (Arrow worm):  

Predictions & Data for this entry

Model:  abj  

COMPLETE = 2.5
MRE = 0.096
SMSE = 0.158

Zero-variate data
DataObservedPredicted(RE)UnitDescriptionReference
ah1.5 1.543 (0.0289)dage at hatchPear1991
ab 3 2.703 (0.09916)dage at birthPear1991
tp 15 15.7 (0.04662)dtime since birth at pubertyguess
am730 727.6 (0.003279)dlife spanADW
Lh0.09 0.08793 (0.02295)cmtotal length at hatchPear1991
Lb0.13 0.1354 (0.04188)cmtotal length at birthPear1991
Lp0.76 0.7163 (0.05754)cmtotal length at pubertyReev1970
Li1.2 1.301 (0.08431)cmultimate total lengthBeer1964
Ri 34 33.92 (0.002385)#/dmaximum reprod ratePear1991
JX850.64 0.6425 (0.003954)mg dry weight/dingestion rate at 0.85 cmReev1964
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL see Fig. 1 (0.03882)time since birthlengthReev1970
tW see Fig. 2 (0.7255)time since birthdry weightReev1970
Pseudo-data at Tref
DataGeneralised animalFerosagitta hispidaUnitDescription
v 0.02 0.01442cm/denergy conductance
kap 0.8 0.674-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 554J/d.cm^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.7989-growth efficiency

Facts

  • protandrous hermaphrodite (testes mature before ovaries); internal fertilisation (ref: Pear1991)
  • protandrous hermaphrodite (testes mature before ovaries); internal fertilisation (ref: Pear1991)

Discussion

  • length-wet weight relationship: morphology suggests length : width : height = 1 : 0.1 : 0.02
  • so V = .002 L^3, probably an over-estimation
  • Ww_i = .002 1.2^3 = 8.6 mg; Wd_i = 0.1 mg
  • shape of tW-curve strongly suggests that gonads contribute to Wd

Bibliography

  • Wiki
  • Kooy2010
  • Reev1964
  • Reev1970
  • ReevBake1975
  • Pear1991
  • Beer1964
  • ADW

Bibtex files with references for this entry


Bas Kooijman, 2011/11/11 (last modified by Bas Kooijman 2016/10/16)

accepted: 2015/12/07

refer to this entry as: AmP Ferosagitta hispida version 2015/12/07 bio.vu.nl/thb/deb/deblab/add_my_pet/