Science and adventure on first leg of ocean expedition

Jul 04, 2013
Science and adventure on first leg of ocean expedition
A pod of whales came close to the yacht in the Indian Ocean

Scientists undertaking a UNSW-led expedition to study microbes in the Indian Ocean have weathered huge seas and had a close encounter with giant whales during the first leg of their voyage from South Africa to Mauritius.

"We have also collected lots of data. The scientific part of the expedition has been successful beyond our wildest dreams," says expedition leader, Dr Federico Lauro, a UNSW and national sailing champion.

Members of the UNSW-led team set sail in late May from Cape Town in an 18 metre yacht – Indigo V – and recently arrived in Port Louis in Mauritius.

Dr Lauro is back in Sydney, preparing for the next three legs of the 10,000-kilometre long voyage. The expedition will restart in September, sailing from Mauritius to the Maldives, on to Phuket and then to the final destination, Singapore.

Ocean microbes help sustain life on Earth but little is known about those in the Indian Ocean, which contains some of the most under-sampled waters on the globe.

The boat is specially equipped to record water characteristics such as temperature, salinity and pH. Water samples are routinely collected, filtered and the frozen for back in the laboratory.

An on-board study also checks the health of the , which provide much of the oxygen we breathe, and how this relates to , currents, water temperature and latitude.

On the way to Mauritius the boat encountered a wild storm with sustained gusts of more than 45 knots and waves more than 15 metres high. "They were the biggest waves I have ever seen," says Dr Lauro, who is an experienced ocean sailor.

The boat was also were surrounded at one stage by a pod of Bryde's whales that swam so close  the sailors could smell the whales' breathe.

"We pulled up the sails, so we could get out of their way, but the pod kept following us. When we changed course, the whole pod would change course with us," says Dr Lauro.

The team includes researchers from UNSW, Macquarie University and the University of Technology, Sydney, as well as from the Desert Research Institute and the University of California in the US,  the University of Copenhagen and the Technical University of Denmark in Denmark, and the Singapore Centre on Environmental Life Sciences Engineering.

Different members take part in different legs.

Explore further: Tropical Storm Vance's center looks like a pumpkin to Terra satellite

More information: indigov.unsw.edu.au/

add to favorites email to friend print save as pdf

Related Stories

New Australasian Antarctic expedition

Jun 04, 2013

To celebrate the centenary of Sir Douglas Mawson's 1911-1914 expedition to Antarctica, two University of New South Wales scientists are leading a modern-day voyage to retrace the route taken by the great ...

Pilot whales stranded on New Zealand beach

Nov 15, 2012

A pod of 28 pilot whales that were left stranded on a New Zealand beach on Thursday are likely be put down as there is little chance of refloating them, wildlife officials said.

Recommended for you

NASA sees remnants of Nilofar go to cyclone graveyard

15 hours ago

Wind shear has caused the demise of former Tropical Cyclone Nilofar in the northern Arabian Sea. NASA's Aqua satellite passed over Nilofar on Oct. 31 and captured an image that shows strong wind shear has ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.