I believe this is only a current indicator because of less predators. Ie over-fishing. We don't know, but most studies that look at what does well in acidic oc

I believe this is only a current indicator because of less predators. Ie over-fishing. We don't know, but most studies that look at what does well in acidic oceans come up with jelly fish. Lots of jelly fish. Yum, heavy metal infused jelly fish...