Ranging and diving behaviour of two 'offshore' bottlenose dolphins, Tursiops sp., off eastern Australia

Corkeron, Peter. J., and Martin, Anthony R. (2004) Ranging and diving behaviour of two 'offshore' bottlenose dolphins, Tursiops sp., off eastern Australia. Journal of the Marine Biological Association of the United Kingdom, 84 (2). pp. 465-468.

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Abstract

This paper describes a study of the ranging and diving behaviour of two ‘offshore’ bottlenose dolphins, Tursiops sp., in the waters off south-east Queensland, determined using satellite-linked time-depth recorders attached to two animals. Animal 1's tag transmitted for 30 days, Animal 2's for 143 days. Immediately after tagging, Animal 1 swam south, reaching a point 146 km south of the point of tagging, then swam generally northwards until the tag ceased working. Animal 2's observed range covered 778 km2, with a core area of 86 km2. The greatest north–south distance between all locations for Animal 2 was 43 km. The manner in which maximum dive depth was related to dive duration was analysed using constrained principal curves. These analyses indicated that for both animals, short dives were to less than 5 m, and there was no clear relationship between dives of greater duration and depth. These dolphins appear to behave differently from ‘offshore’ bottlenose dolphins studied elsewhere.

Item ID: 13910
Item Type: Article (Research - C1)
ISSN: 0025-3154
Keywords: bottlenose dolphins; diving behaviours; tursiops
Date Deposited: 26 Nov 2010 02:57
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity @ 50%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050211 Wildlife and Habitat Management @ 50%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960802 Coastal and Estuarine Flora, Fauna and Biodiversity @ 100%
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