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Corpus Systématique Animale

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Description, interpretation and use of the microstructure of otoliths from juvenile butterflyfishes (family Chaetodontidae)

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  • A. J. Fowler
  • School of Biological Sciences, University of Sydney, 2006, Sydney, New South Wales, Australia

Preliminary investigations were performed to develop techniques to expose and to correctly interpret the microstructure of otoliths of three species of chaetodonts. Specimens were collected from One Tree Reef on the southern Great Barrier Reef between April 1985 and February 1987. Lapilli were found to be clearer and to provide higher counts than sagittae. By marking fish with tetracycline, the period of formation of increments was validated as daily. A discontinuity was evident in the lapilli, whose formation was related to the time of settlement to the reef. Chaetodon rainfordi had a mean pre-settlement duration of 27.8 d compared with 45.2 and 23.2 d for C. plebius and Chelmon rostratus, respectively. Each species demonstrated exponential growth in weight, but their patterns of growth in standard length differed. Chaetodon rainfordi had exponentially decreasing growth in length up to the age of 300 d, whilst C. plebius grew linearly for at least 200 d. Growth of Chelmon rostratus was approximately linear up to the age of 60 d.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
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Marine Biology

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