Megalops atlanticus (Atlantic tarpon):  

Predictions & Data for this entry

Model:  ssj  

MRE = 0.226
SMSE = 0.253

Zero-variate data
ab2.5 3.629 (0.4515)dage at birthADW
as78.75 67.56 (0.142)dage at metamorphisis to stage 2flmnh
aj101.3 90.06 (0.1105)dage at metamorphisis to stage 3flmnh
ap3102 2927 (0.05633)dage at pubertyAnAge
am2.008e+04 2.003e+04 (0.002135)dlife spanAnAge
Lb0.6 0.1287 (0.7855)cmstandard length at birthflmnh
Ls2.8 2.248 (0.197)cmstandard length at metamorphosis to stage 2flmnh
Lj1.4 2.945 (1.103)cmstandard length at metamorphosis to stage 3flmnh
L52 4 4.665 (0.1663)cmstandard length at juvenile stage 7 till 8 weeks after ajflmnh
Lp 75 79.52 (0.06027)cmstandard length at birthWiki
Li250 230.6 (0.07743)cmultimate standard lengthWiki
Wwi1.61e+05 1.617e+05 (0.004289)gultimate wet weightWiki
Ri3.288e+04 3.246e+04 (0.01275)#/dreprod rate at Lw = 200 cmflmnh
Uni-variate data
DatasetFigure(RE)Independent variableDependent variableReference
tL_m see Fig. 1 (0.1214)time since birthfork lengthCrabCyr1995
tL_f see Fig. 1 (0.09758)time since birthfork lengthCrabCyr1995
Pseudo-data at Tref
DataGeneralised animalMegalops atlanticusUnitDescription
v 0.02 0.006734cm/denergy conductance
kap 0.8 0.978-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 17.61J/^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.7991-growth efficiency


  • wiki: The tarpon feeds almost exclusively on schooling fish and occasionally crabs.It is capable of filling its swim bladder with air, like a primitive lung. (ref: Wiki)
  • The first stage, the leptocephalus stage, or stage one, is completed after 2030 days.It takes place in clear, warm oceanic waters, usually within 1020 m of the surface.The leptocephalus shrinks as it develops into a larva; the most shrunken larva, stage two, develops by day 70.This is due to a negative growth phase followed by a sluggish growth phase.By day 70, the juvenile growth phase, stage three, begins and the fish begins to rapidly grow until it reaches sexual maturity. (ref: Wiki)
  • Stage-one larvae are usually found in clear, warm, oceanic waters, relatively close to the surface. (ref: Wiki)
  • Stage-two and -three larvae are found in salt marshes, tidal pools, creeks, and rivers.The habitats are characteristically warm, shallow, dark bodies of water with sandy mud bottoms. (ref: Wiki)
  • Tarpons commonly ascend rivers into freshwater. As they progress from the juvenile stage to adulthood, they move back to the open waters of the ocean, though many remain in freshwater habitats. (ref: Wiki)


  • males are assumed to differ from females by {p_Am} only
  • All larval forms are given the same shape coefficient, del_M, due to lack of data


  • Wiki
  • Kooy2010
  • CrabCyr1995
  • flmnh
  • fishbase
  • AnAge
  • ADW

Bibtex files with references for this entry

Bas Kooijman, 2013/04/06 (last modified by Bas Kooijman 2016/10/15)

accepted: 2016/03/02

refer to this entry as: AmP Megalops atlanticus version 2016/03/02