#1 Octopuses may go blind as climate change pulls oxygen from the ocean by Cincinnatus 19.05.2019 04:52

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The latest scare mongering headline and story. Enjoy.

Zitat
Turning light particles into visual information is hard work, and your body relies on oxygen to get the job done. This is true whether you walk the land on two limbs or swim through the sea with eight.

In fact, according to a recent study in the Journal of Experimental Biology, the amount of oxygen available to marine invertebrates like squids, crabs and octopuses may be far more important to their vision than previously thought. In the study, published online April 24, researchers saw a significant drop in retinal activity in four species of marine larvae (two crabs, an octopus and a squid) when the animals were exposed to reduced-oxygen environments for as little as 30 minutes. [8 Crazy Facts About Octopuses]

For some species, even a minuscule drop in oxygen levels resulted in almost immediate vision loss, eventually causing near-total blindness before the oxygen was cranked back up again.

According to lead study author Lillian McCormick, a doctoral candidate at the Scripps Institution of Oceanography in La Jolla, California, some form of vision impairment may be a daily reality for these species, which migrate between the ocean's highly oxygen-saturated surface and its hypoxic (low-oxygen) depths during their daily feeding routines. And as ocean oxygen levels continue to drop around the globe, in part due to climate change, the risks to these creatures could intensify.

"I am concerned that climate change is going to make this issue worse," McCormick told Live Science, "and that visual impairment might happen more frequently in the sea."



https://www.nbcnews.com/mach/science/oct...ean-ncna1006576

Ever notice how these climate change coming disaster stories always include plenty of qualifiers like "may", "might", and "could"?

#2 RE: Octopuses may go blind as climate change pulls oxygen from the ocean by algernonpj 19.05.2019 15:14

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Quote: Cincinnatus wrote in post #1
The latest scare mongering headline and story. Enjoy.

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Ever notice how these climate change coming disaster stories always include plenty of qualifiers like "may", "might", and "could"?


Now you're not supposed to be noticing that. You're supposed to be so scared that you will gladly give up your free speech, freedom, and hard earned wealth so you won't go blind

#3 RE: Octopuses may go blind as climate change pulls oxygen from the ocean by PzLdr 19.05.2019 15:57

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Did they ever think that with eight arms the octos might be going blind from self abuse?

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