Rare shark found off Rottnest Island

In Featured Home Page News, National Headlines, Western Australia

From yahoo.com/thewest

Male and pregnant female Dogfish Mandarin sharks have been found in waters off Australia’s Rottnest Island.

Shark biologist Ryan Kempster, of the University of Western Australia’s Oceans Institute, said two sharks were identified as mandarin dogfish after a two-year investigation including DNA sequencing.

The rare sharks, a male just under a metre long and a pregnant female about 1.2 metres long, were caught off Rottnest Island at a depth of 430m by local recreational fisherman Steve Downs.

Mr Kempster said the species had only previously been found in waters between Indonesia and Japan, and also off New Zealand.

It’s not known why the sharks were found so far from their normal habitat but the find has scientists re-evaluating their understanding of the species, including its reproduction.

“The female shark found off Rottnest had 22 unborn pups and is only the second ever-recorded specimen of a pregnant female of this species,” Mr Kempster said.

“Previously, it was thought that the maximum number of pups for this species was 10.”

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