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Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences
RESEARCH ARTICLE

A new model accounting for seasonal cessation of growth in fishes

S Pauly, M Soriano-Bartz, J Moreau and A Jarre-Teichmann

Australian Journal of Marine and Freshwater Research 43(5) 1151 - 1156
Published: 1992

Abstract

A modified version of the von Bertalanffy growth function (VBGF) is proposed in which a sine wave modifies a standard version of the VBGF, enabling a smooth transition between rapid summer growth and a variable period of zero growth (in length) during winter or during the dry season for aestivating fishes. The key features of a nonlinear routine for fitting this new model are also presented, with emphasis on the estimation of the period of zero growth. Application examples, to Salmo salar and Trisopterus esmarkii, are presented.

https://doi.org/10.1071/MF9921151

© CSIRO 1992

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