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Rare, tiny find in West Australian waters

A miniscule marine creature caught during a recent Indian Ocean research voyage is believed to be the first of its kind identified in the Southern Hemisphere.

The single celled organism, supporting what looks like 6 legs is a phaeodaria from the family coelodendridae, also known as a radiolarian. Measuring only 1.4 mm, the organism was found during an investigation of ocean eddies by the National Marine Facility, Southern Surveyor.

"It was a case of being in the right place at the right time with the right people," says PhD student Harriet Paterson, who discovered the radiolarian. Harriet works with the Strategic Research Fund for the Marine Environment (SRFME) a joint CSIRO-West Australian Government marine research team based at Floreat, Perth.

"Our objective was to collect samples of marine life in ocean eddies and this was a complete surprise to us, and I'm sure to other researchers in this field from Northern Hemisphere institutions," Ms Paterson said.

Ms Paterson detailed her research to colleagues during a science symposium in Perth yesterday (June 16).

The Director of SRFME, Dr John Keesing, said the discovery is an example of how state and federal agencies are coming together to tackle the problem of exploring and managing Australia's vast and valuable ocean resources.

"Australia's territory is 70 per cent ocean. We need more ocean scientists. We need to be able to provide hard scientific facts about our oceans that will allow legislators, regulators and industry to be able to address the challenge of managing our ocean resources.

"The West Australian Government, CSIRO Marine Research and the CSIRO Wealth from Oceans Flagship have come together to provide a program to train and supervise new PhD students in the area of marine science. This discovery is a direct result of that program," said Dr Keesing.

The find has excited scientists researching the micro zooplankton world. The pheodaria was
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Contact: Craig Macaulay
craig.macaulay@csiro.au
61-36-232-5219
CSIRO Australia
24-Jun-2004


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