Octopuses may go blind as climate change pulls oxygen from the ocean - NBCNewsMACH
To find out whether these daily swings in oxygen affect the animals' vision, McCormick attached small electrodes to the eyes of each one of her test larvae, none of which measured longer than 1.5 inches . These electrodes recorded the electrical activity in each larva's eyes as its retinas reacted to light —"kind ofEach larva was then placed in a tank of water and made to look at a bright light while the water's oxygen level was steadily decreased.
While each of the four species showed a slightly different tolerance, all four took a marked blow to vision when exposed to the low-oxygen environment. Overall, each larva's retinal activity dropped between 60% and 100% in low-oxygen conditions. Some species, particularly the market squid and the rock crab, proved so sensitive that they started"By the time I reached the lowest oxygen levels, these animals were almost blinded," McCormick said.
The good news is that the vision loss wasn't permanent. Within about an hour of returning to a fully saturated oxygen environment, all of the larvae regained at least 60% of their vision, with some species bouncing back to 100% functionality.
Deutschland Neuesten Nachrichten, Deutschland Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Italy’s Climate Change-Skeptic Government Wants To Host The UN’s Flagship Climate Change ConferenceItaly’s candidacy is putting EU governments in a difficult position. The UK meanwhile is lobbying Italy to drop its bid.
Weiterlesen »
Presidential hopeful Warren unveils bill to protect U.S. military from climate changeDemocratic presidential hopeful Senator Elizabeth Warren said on Wednesday she i...
Weiterlesen »
De Blasio event to attack Trump on climate change turns into spectacleBill de Blasio’s event today was drowned out by loud music, protesters shouting “You suck” and people with signs that read “Trump 2020” and “Worst Mayor Ever”
Weiterlesen »
How Gov. Jay Inslee would address climate changeJay Inslee expanded his plan to address climate change, releasing a set of 28 policy proposals outlining how his administration would attempt to meet its ambitious carbon-cutting goals
Weiterlesen »
2020 candidate Gov. Jay Inslee unveils 2nd leg of sweeping climate change planDemocratic presidential candidate Jay Inslee announced the second leg of a sweeping climate change plan and $9 trillion in jobs, clean energy and infrastructure.
Weiterlesen »
Climate change top issue in Australian electionClimate change is Australia election's top issue. The main opposition Labour party wants to invest in renewable energy and by 2030, wants a 45 percent cut in carbon emissions as the current government says it is doing a good job at it.
Weiterlesen »