Long-distance oceanic movement of a solitary dugong (Dugong dugon) to the Cocos (Keeling) Islands

Hobbs, Jean-Paul A., Frisch, Ashley J., Hender, Jay, and Gilligan, Justin J. (2007) Long-distance oceanic movement of a solitary dugong (Dugong dugon) to the Cocos (Keeling) Islands. Aquatic Mammals, 33 (2). pp. 175-178.

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Abstract

In this paper, we report on the arrival of a small (2 m long) male dugong (Dugong dugon) to the Cocos (Keeling) Islands (12° 12' S, 96° 54' E), Indian Ocean. The dugong arrived in June 2002 after travelling more than 1,000 km across deep open ocean, during which time it would have been vulnerable to predation and presumably unable to feed. This is the longest recorded dugong movement and demonstrates that dugongs have the capacity to make long-distance oceanic movements to colonise distant, unoccupied locations. The solitary dugong has remained at the Cocos Islands for at least four years and exhibits unusual habitat use and behaviour; it frequently occupies deep water on the edge of the coral reef and interacts with SCUBA divers.

Item ID: 2922
Item Type: Article (Refereed Research - C1)
Keywords: dugong; Dugong dugon; Cocos (Keelings) Islands; movement; dispersal; re-colonisation; habitat use; behaviour
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Reproduced with permission from Aquatic Mammals.

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ISSN: 1996-7292
Date Deposited: 22 Sep 2009 04:26
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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