Central Coast scientist finds that California abalone are resilient despite climate change (audio and text)

A Central Coast scientist has found that large sea snails known as abalone are resilient despite the effect of climate change on the ocean.

Cal Poly San Luis Obispo biologist Dr. Jennifer O’Leary took a closer look at ocean acidification, which is caused by climate change. This happens when carbon dioxide is absorbed by seawater and chemical reactions increase the acidity of the water. She says previous studies have shown that coralline algae – which are critical to abalone’s ability to reproduce — are sensitive to ocean acidification.

“We were very surprised in this study that even after four months of subjecting this algae to really extreme levels of ocean acidification that it was still able to provide the chemical signal, which was like a scent, to the baby abalone,” she said.

A possible explanation is that organisms in California may be able to better withstand ocean acidification because they naturally live in highly variable physical conditions.

Debra Greene, KCLU, 16 August 2017. Audio and text.

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Ocean acidification in the IPCC AR5 WG II

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