What does VGBF stand for?

A von Bertalanffy growth function (VBGF) (von Bertalanffy 1938) was fitted to the data using the electronic length-frequency analysis 'ELEFAN I' routine of the FISAT II program package (Gayanilo Jr.

t], (6) and midyear lower jaw fork length was estimated from the von Bertalanffy growth function [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], (7) where K = the growth parameter; [L.

mat,a] a was determined by using the logistic function describing the probability that a fish of a given length is mature, together with the lengths at age predicted by using the von Bertalanffy growth function.

The size-at-age of each individual was used to fit the von Bertalanffy growth function (VBGF; von Bertalanffy 1938) by latitude: [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] (1) where H is shell height at age t, [H.

Based on these collections, the von Bertalanffy growth function differed significantly (P<0.

The von Bertalanffy growth function was fitted to the vertebral age-at-length data for salmon sharks from the ENP with a nonlinear least squares regression algorithm ("nls" in S-Plus, Professional Release 1, Mathsoft Inc.

Growth was investigated by fitting the von Bertalanffy growth function (von Bertalanffy, 1938) to size-at-age data using standard nonlinear optimization methods.

Methods for estimating growth in wild fish stocks derive largely from two sources: 1) age-based models, such as the von Bertalanffy growth function (VBGF), from data for length-at-age, where fish ages are known or estimated from scales, otoliths, and other hard parts; and 2) length-based models, from recapture data from tagged fish to describe a growth trajectory over time at liberty (e.