Heptranchias perlo (Sharpnose sevengill shark):  

Predictions & Data for this entry

Model:  std  

MRE = 0.072
SMSE = 0.060

Zero-variate data
ab365 421 (0.1536)dage at birthTeamfish
am2.19e+04 2.196e+04 (0.002831)dlife spanguessed
Lb 25 27.49 (0.09944)cmtotal length at birthiucn
Lp97.5 98.48 (0.0101)cmtotal length at pubertyiucn
Li140 145.4 (0.03889)cmultimate total lengthiucn
Wwb 45 40.23 (0.106)gwet weight at birthnaosite
Ri0.03562 0.0389 (0.09221)#/dmaximum reprod rateiucn
Pseudo-data at Tref
DataGeneralised animalHeptranchias perloUnitDescription
v 0.02 0.1098cm/denergy conductance
kap 0.8 0.4152-allocation fraction to soma
kap_R 0.95 0.95-reproduction efficiency
p_M 18 26.57J/d.cm^3vol-spec som maint
k_J 0.002 0.0021/dmaturity maint rate coefficient
kap_G 0.8 0.8006-growth efficiency


  • ovoviviparous (ref: Wiki)
  • Usually captured in 300 to 600 m, but occasionally taken in shallow water, and at depths to 1,000 m. (ref: iucn)
  • Eats teleosts and cephalopods, and to a lesser extent on small cartilaginous fishes (ref: Wiki)


  • 6-20/clutch; one clutch per yr is assumed for this entry


Bibtex files with references for this entry

Bas Kooijman, 2013/04/22

accepted: 2016/02/24

refer to this entry as: AmP Heptranchias perlo version 2016/02/24 bio.vu.nl/thb/deb/deblab/add_my_pet/