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Encounter Maria Island

20/10/2017

Encounter Maria Island's new ferry Osprey V, that will allow even more visitors to enjoy one of the State's best tourism attractions, was launched today.More

Progress on Cradle Mountain Master Plan

19/10/2017

An important milestone in the Cradle Mountain Master Plan project has been reached following a competitive tender process, with Cumulus Studio chosen to design the Cradle Mountain gateway precinct and the Dove Lake viewing shelter.More

Exciting new proposal for Tasmania's South East Cape

16/10/2017

Award-winning local tourism operator Ian Johnstone can now progress a new project to lease and licence negotiations under the Tourism Opportunities in Tasmania's National Parks, Reserves and Crown Land process.More

Mystery of Risso's dolphin strandings continues

11/02/2015

The mystery of multiple strandings of Risso’s dolphins on Australia’s eastern seaboard continues with another Risso’s dolphin being found dead at a remote part of Reidle Bay on Maria Island.


Maria Island senior ranger Pete Lingard and DPIPWE Marine Conservation Program wildlife officer Kris Carlyon attended the dead dolphin on Monday to carry out a comprehensive necropsy of the animal while it was still in good condition.


There have been 12 stranding events, involving 13 animals on Tasmania’s shores, since November 2014. This is unprecedented in Tasmania, as prior to this summer only one stranded animal had been reported in Tasmania. The majority of dolphins have been dead when first found, or have died soon after stranding.


Similar strandings of Risso’s dolphins during this period have been recorded on the eastern seaboard and Marine Conservation Program staff are working with counterparts in New South Wales and Victoria to investigate and share information.


Kris said Risso’s dolphins are regularly seen in waters off southern New South Wales at this time of year, usually 12 to 20 nautical miles offshore, so to have them so close to shore and stranding is unusual.


Marine Conservation Program staff have been gathering information by taking a range of biological samples from the stranded animals. A selection of samples have been sent to the DPIPWE Mt Pleasant laboratory for examination.  To date, there have been no consistent findings, however important information and additional samples have been collected for future testing.


Kris said that changing environmental conditions may be a cause for the Risso's dolphins moving to inshore Tasmanian waters.


“Exactly why they are here, why they are so close to shore and why they are dying, are the unanswered questions,” he said.

Mystery of Risso

The 3.4 metre Risso's dolphin at Reidle Bay on Maria Island.

Mystery of Risso

The body scarring on the Risso's dolphin is an intriguing feature that is consistent with other Risso's found recently.