The importance of juveniles in modelling growth: butterflyfish at Lizard Island

Berumen, Michael L. (2005) The importance of juveniles in modelling growth: butterflyfish at Lizard Island. Environmental Biology of Fishes, 72 (4). pp. 409-413.

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I established and fitted von Bertalanffy growth functions to size-at-age data for four species of chaetodontids at Lizard Island. Special emphasis on juveniles provided detailed information of the early growth period. All four species demonstrated rapid initial growth achieving an average of 92% of maximum theoretical size in the first 2thinspyears. I used various constraints of the theoretical age at length zero (t0) in an analysis of both complete data sets and data sets using only adult fish. An unconstrained value of t0 resulted in the best-fit (maximum r2) curve when juveniles were included. When excluding juveniles, it was necessary to constrain t0 to an approximate settling size to most closely represent the growth of the species.

Item ID: 14013
Item Type: Article (Research - C1)
ISSN: 1573-5133
Keywords: Chaetodontidae; coral reef fish; growth curve; von Bertalanffy parameters; age-based analysis
Date Deposited: 26 Nov 2010 04:42
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060299 Ecology not elsewhere classified @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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