Antinuclear

Australian news, and some related international items

A truly good news story – the cuttlefish are back in Spencer Gulf

South Australians – pat yourselves on the back. When the nuclear lobby wanted to put the nuclear industry up at the top of Spencer Gulf – South Australia said “NO” – as South Australians have been doing for decades – fighting back. Nuclear power would have caused releases of hot water into the Gulf, ruining the special temperature conditions essential for the breeding of these unique and beautiful animals.

We don’t really know why they dwindled, and why they’re now back. But hooray for their return!

Thousands of giant cuttlefish back in SA http://www.heraldsun.com.au/news/breaking-news/thousands-of-giant-cuttlefish-back-in-sa/news-story/f859a1f7bd568fb213ae2fe4fe66b680, Australian Associated Press, August 25, 2017 Thousands of giant cuttlefish are flocking to the rocky coastline of the upper Spencer Gulf in South Australia to spawn in record numbers, reserving a worrying decline.

More than 100,000 cuttlefish have journeyed to Point Lowly near Whyalla to breed, according to data from the state government’s principal research institute.

The number is up from a record low of just over 13,000 in 2013.

The giant Australian cuttlefish – which can reach up to 60cm in length and weigh five kilograms – live for two to three years and migrate annually to Spencer Gulf to spawn.

The worrying decline in their numbers in 2013 promoted more research into their breeding patterns. This year’s population estimate is the third-highest recorded over the last decade,” said senior research scientist Dr Mike Steer.

It is still not completely understood why cuttlefish migrate to the Spencer Gulf nor why their numbers declined, but fishing restrictions have been put in place until 2018 as a precaution.

“The last five years of research has clearly demonstrated the population’s capacity to rebound from low numbers very quickly,” Dr Steer said.

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August 28, 2017 - Posted by | environment, South Australia

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