A note on the von Bertalanffy growth function concerning the allocation of surplus energy to reproduction

Ohnishi, Shuhei and Yamakawa, Takashi and Okamura, Hiroshi and Akamine, Tatsuro (2012) A note on the von Bertalanffy growth function concerning the allocation of surplus energy to reproduction. Fishery Bulletin, 110(2), pp. 223-229.

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Abstract

We propose an extended form of the von Bertalanffy growth function (VBGF), where the allocation of surplus energy to reproduction is considered. Any function can be used in our model to describe the ratio of energy allocation for reproduction to that for somatic growth. As an example, two models for energy allocation were derived: a step-function and a logistic function. The extended model can jointly describe growth in adult and juvenile stages. The change in growth rate between the two stages can be either gradual or steep; the latter gives a biphasic VBGF. The results of curve fitting indicated that a consideration of reproductive energy is meaningful for model extension. By controlling parameter values, our comprehensive model gives various growth curve shapes ranging from indeterminate to determinate growth. An increase in the number of parameters is unavoidable in practical applications of this new model. Additional information on reproduction will improve the reliability of model estimates.

Item Type: Article
Title: A note on the von Bertalanffy growth function concerning the allocation of surplus energy to reproduction
Personal Creator/Author:
CreatorsEmail
Ohnishi, Shuhei
Yamakawa, Takashi
Okamura, Hiroshi
Akamine, Tatsuro
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 110
Number: 2
Page Range: pp. 223-229
Date: April 2012
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Fisheries
Management
Item ID: 8682
Depositing User: Patti M. Marraro
Date Deposited: 07 Jun 2012 14:47
Last Modified: 07 Jun 2012 14:47
URI: http://aquaticcommons.org/id/eprint/8682

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