[OANNES Foro] Deep-diving behaviour of a whale shark

[Mario Cabrejos]

Journal of Fish Biology
Volume 74 Issue 3, Pages 706 - 714
Published Online: 3 Feb 2009

Deep-diving behaviour of a whale shark Rhincodon typus 
during long-distance movement in the western Indian Ocean
J. M. Brunnschweiler*?, H. Baensch?, S. J. Pierce§ D. W. Sims?¶ 
  * Institute of Zoology, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland ,   ? The Open University, Walton Hall, Milton Keynes MK7 6AA, U.K. ,   § Manta Ray & Whale Shark Research Centre, Tofo Beach, Mozambique ,   ? Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, U.K. and   ¶ Marine Biology and Ecology Research Centre, School of Biological Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, U.K. 
Correspondence to   ?Swiss Federal Institute of Technology, Raemistrasse 101, CH-8092 Zurich, Switzerland. Tel.: +41 44 632 2071; fax: +41 44 362 5085; email: juerg en gluecklich.net 

ABSTRACT
A whale shark Rhincodon typus satellite tagged off the coast of Mozambique showed a highly directional movement across the Mozambique Channel and around the southern tip of Madagascar, a minimum distance of 1200 km in 87 days. Dives to depths well into the mesopelagic and bathypelagic zones (1286 m maximum depth) were recorded in a bathymetrically non-constraining habitat. The water temperature range recorded during the fish's movement was 3·4-29·9° C.
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