Australia's first census of Derwent River dolphins

Published 17 January 2014, 14:48 AEST

Australian researchers are investigating whether the apparent increase in the number of dolphins in the Derwent River in Hobart is related to the improvement of the river’s health.

Christine Coughanowr, director of the Derwent River Estuary Project, said there are rumors that the number of dolphins in the river is currently increasing. She said that researchers will follow this mammal for the next three months.

She said that this is the first time that such a census has been conducted on the number of dolphins. She said that obtaining this data is crucial. Some people believe that as the health of the Derwent River improved, the number of dolphins increased and whales were also seen.

Kugano said that they must first register the current number of dolphins, and then they can track the dolphins in the river. She said that people have found two different species of dolphins at the mouth of the Derwent River and Storm Bay. There are also reports that some people have seen dolphins in the upper reaches of New Norfolk.

A team of marine biologists is currently investigating the number of dolphins in the river. Scientists call on the public to record where they saw the dolphins. They hope to better understand where the mammals live, how they reproduce, and where they feed. The scientists hope to announce their research results in April this year.