Predictions & Data for this entry

Model: abj climate: Af, Am migrate: phylum:
COMPLETE = 2.5 ecozone: TPa food: bjCi, jiCvf class:
MRE = 0.137 habitat: 0iFr, 0iFl gender: D order:
SMSE = 0.126 embryo: Fh reprod: O family:

Zero-variate data
ah0.9375 1.258 (0.3417)dage at hatchSteyGagi1996
ab5.438 4.154 (0.2361)dage at birthSteyGagi1996
aj17.94 16.81 (0.06275)dage at metamSteyGagi1996
ap975 827.1 (0.1516)dage at pubertyKooy2014
am2920 2920 (0.0001446)dlife spanfishbase
Lh0.29 0.209 (0.2794)cmtotal length at hatchSteyGagi1996
Lb0.45 0.4785 (0.0633)cmtotal length at birthSteyGagi1996
L130.8 0.9264 (0.158)cmtotal length at 13 d since hatchSteyGagi1996
Lj 1 1.095 (0.09483)cmtotal length at metamSteyGagi1996
L40 4 2.832 (0.292)cmtotal length at 40 d since hatchSteyGagi1996
L72 5 5.066 (0.0133)cmtotal length at 72 d since hatchSteyGagi1996
Lp39.8 46.76 (0.1749)cmtotal length at pubertyfishbase
Li105 117.3 (0.1167)cmultimate total lengthfishbase
Wi2.8e+04 2.68e+04 (0.04283)gultimate wet weightfishbase
Ri937 913.1 (0.02546)#/dreprod rate at Ww = 1.7 kg SteyGagi1996
Pseudo-data at Tref
DataGeneralised animalHydrocynus vittatusUnitDescription
v 0.02 0.0564cm/denergy conductance
kap 0.8 0.6982-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 5.766J/^3vol-spec som maint
k_J 0.002 0.00030511/dmaturity maint rate coefficient
kap_G 0.8 0.7992-growth efficiency
k 0.3 0.277-maintenance ratio


  • Does not tolerate cold temperatures (ref: SteyGagi1996)
  • Very small eggs (ref: Wiki)


  • In view of low somatic maintenance, pseudodata k_J = 0.002 1/d is replaced by pseudodata k = 0.3


  • [Wiki]
  • [Kooy2014] guessed from other age-length data, given Lp.
  • [fishbase]
  • [Kooy2010] S.A.L.M. Kooijman. Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge, 2010.
  • [SteyGagi1996] G. J. Steyn, C. L. Gagiano, A. R. Deacon, and H. H. du Preez. Notes on the induced reproduction and development of the tigerfish, Hydrocynus vittatus (Characidae), embryos and larvae. Environmental Biology of Fishes, 47:387--398, 1996.

Bibtex file with references for this entry

Bas Kooijman, 2014/05/13 (last modified by Bas Kooijman 2017/11/11)

accepted: 2017/11/11

refer to this entry as: AmP Hydrocynus vittatus version 2017/11/11