Mass schooling and mortality of Canthigaster bennetti in Sulawesi

Vail, A.L., and Sinclair-Taylor, T. (2011) Mass schooling and mortality of Canthigaster bennetti in Sulawesi. Coral Reefs, 30 (1). p. 251.

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Abstract

[Extract] Published accounts of puffer fishes of the genus Canthigaster describe these species as territorial and occurring at low densities (Sikkel 1990 and references within). Here, we provide the first account of mass schooling in any Canthigaser species: C. bennetti around the Togean Islands, Sulawesi, in December 2009. Schools of >10,000 C. bennetti (Fig. 1a) were observed around the fringing reefs of the volcanic island Una Una (0°11'30"S, 121°39'30"E). These single-species schools were observed at depths of 7–30 m, and all individuals comprising them were ~4 cm long. School members displayed relatively coordinated group behaviour, i.e., facing and moving in the same direction. Schools were often several metres away from the reef, strongly contrasting the close substrate association of C. bennetti on the Great Barrier Reef, Australia (pers. obs.).

Item ID: 21220
Item Type: Article (Short Note)
ISSN: 1432-0975
Date Deposited: 26 Mar 2012 22:31
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change @ 50%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 50%
96 ENVIRONMENT > 9603 Climate and Climate Change > 960399 Climate and Climate Change not elsewhere classified @ 50%
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