Squids occupy a powerful place in our imagination. They are the original sea monsters immortalized in Jules Verne's classic novel Twenty thousand leagues under the sea and in Scandinavian folklore, in which a creature appears to be devastating as a crucible from the sea. science shows that no one should write them off in the real world. Probably they will be much longer than humans even when the planet is experiencing intense climate change.
Some marine biologists have suggested that the squid population will affect water with higher concentrations of carbon dioxide. And that makes sense: Squid blood is highly sensitive to acidity changes, and scientists say that creatures are already living on the verge of limiting oxygen in the environment because their swimming technique is so energy-intensive. thrive even as other animals ̵
Ocean Climate Problems
Atmospheric concentrations of carbon dioxide are undoubtedly increasing. Prior to the Industrial Revolution, it was measured at levels of 280 parts per million (ppm). Today this number has grown to 400ppm and is expected to rise to more than 900ppm by the end of the century unless emissions are limited. Rapid change is expected to have a profound impact on ocean ecosystems.
Carbon dioxide dissolved in water forms carbonic acid. This increased acidity can lead to a chain reaction that is detrimental to most animals. Chinese scientists in 2017 found, for example, that it negatively affects small cyanobacteria. These small creatures play a crucial role in ocean ecosystems because they carry out a process called nitrogen fixation, turning nitrogen gas into ammonia and other molecules that need many organisms.
But curiously how this level could affect squids, James Cook's researchers decided to experiment. – and caught them with mesh nets. Back in their lab, scientists divided them into different tanks with different concentrations of carbon dioxide. Over a century CO2 levels, "said lead researcher Blake Spade in a statement
. If their typical predators and prey are adversely affected, it will make it easier for calamaries to hunt for food.
"We'll probably see some species as good for success in our rapidly changing oceans, and those among them have some sort of squid," said Peydie. "What appears most secure is that this will be a completely different world."