July 2, 2012

Fish learn to cope in a high CO2 world




(July 2, 2012)  Some coral reef fish may be better prepared to cope with rising CO2 in the world’s oceans – thanks to their parents.

Researchers at the ARC Centre of Excellence for Coral Reef Studies (CoECRS) today reported in the journal Nature Climate Change encouraging new findings that some fish may be less vulnerable to high CO2 and an acidifying ocean than previously feared.

“There has been a lot of concern around the world about recent findings that baby fish are highly vulnerable to small increases in acidity, as more CO2 released by human activities dissolves into the oceans,” says Dr Gabi Miller of CoECRS and James Cook University.

“Our work with anemone fish shows that their babies, at least, can adjust to the changes we expect to occur in the oceans by 2100, provided their parents are also raised in more acidic water.”