Explained: What fish do amid climate change

Warming waters have less oxygen. Therefore, fish have difficulties breathing in such environments.

It stems from the way fish breathe. Scientists describe this with the Gill-Oxygen Limitation Theory, or GOLT.

Among various ways in which climate change is impacting life on Earth, one has been to change the distribution of fish species in the oceans. Scientists have predicted that the shift will be towards the poles. In a new research paper, they have explained the biological reasons why fish species will follow that direction.