VonBertalanffy: Von Bertalanffy growth function

In sandroklippel/fishassess: Functions on fishery biology, stock assessment and management.

Description

Weight and length based Von Bertalanffy growth function and its inverse.

Usage

VBGFw(t, Winf, K, t0, b=3)
VBGFl(t, Linf, K, t0)
VBGFinv(l, Linf, K, t0)

Arguments

t	age.
l	length.
Winf	asymptotic weight.
Linf	asymptotic length.
K	growth rate.
t0	age at zero weight/length.
b	alometric coefficient.

Value

Weight/length at age (t) or age at length.

Author(s)

Sandro Klippel

References

Sparre, P., Venema, S., 1998. Introduction to tropical fish stock assessment - Part 1: Manual. Vol. 306/1 of FAO Fisheries Technical Paper. FAO, Rome.

Von Bertalanffy, L., 1938. A quantitative theory of organic growth (inquiries on growth laws. II). Human Biology 10 (2), 181-213.

See Also

phi, phi.prime

sandroklippel/fishassess documentation built on June 5, 2019, 10:54 a.m.