Octopuses may go blind from climate change, study warns
By Chris Ciaccia
Published May 20, 2019
Fox News
Plastic pollution and climate change may be significantly altering the level of oxygen on our planet. Now, a new study dives into the impact it could have on marine life, including squids, crabs and octopuses – blindness.
The study, published in the Journal of Experimental Biology, highlights how important oxygen is to sight and retinal activity for certain marine larvae. Tiny declines in oxygen levels result in significant vision impairment, including almost total blindness in certain species.
"Using in vivo electroretinogram recordings, we show that there is a decrease in retinal sensitivity to light in marine invertebrates when exposed to reduced oxygen availability," the study's abstract reads. "We found a 60-100 [percent] reduction in retinal responses in the larvae of cephalopods and crustaceans: the market squid (Doryteuthis opalescens), two-spot octopus (Octopus bimaculatus), tuna crab (Pleuroncodes planipes), and brachyuran crab (Metacarcinus gracilis)."
https://www.foxnews.com/science/octopuses-blind-climate-change-study
