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Hitomi the bigeye tuna puts CSIRO research on radar

CSIRO Media Release – 8 June 2011
Ref 11/58
Bigeye tuna tagged in the Coral Sea showed wide-ranging diving behaviour that enabled them to locate scarce prey while minimising competition with other tuna species.   Gold spot trevally have been tagged and tracked by CSIRO scientists at Ningaloo Marine Park in north-western Western Australia. Information on their movements is needed to help ensure marine parks provide adequate protection.

Image credit – CSIRO

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Tagging studies show that juvenile southern bluefin tuna undertake cyclic migrations between the warm waters of the Great Australian Bight and the cooler waters of the Indian Ocean.   Information about the movements and behaviour of white sharks is important for assessing their populations and managing their interactions with humans.

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'Berani' the tiger shark moved north from Ningaloo Reef, WA, travelling via the Kimberley to Indonesia. She then returned south, rounding Cape Naturaliste and reaching Esperance before retracing her path to Ningaloo.  

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Audio grabs of CSIRO scientist, Andy Steven

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