Fish Survival At Sea Bottom?
At the bottom of the sea, the pressure is very high. Then how do fishes with delicate bodies survive?
Fish Survival At Sea Bottom?
First of all, you have to know that the spices of fish for whom you are talking about Have already evolved in those conditions. From your point of view it’s hard to breathe for them in extreme Pressure. But for them, it’s normal.
And generally fish have to pass water through their gill to get oxygen. Also in the deep sea. Where..low temperature, high Pressure, low nutrients, and low dissolved oxygen content. They do the same. Because they are adapt themselves that helps them to breathe.. like heart adapt in such a way that it can produce higher stoke volume etc.
Most areas under the deep sea don’t have low oxygen levels, so fish can breathe as same as they do in ponds and rivers.
And in the deep sea their is no limit of food. So, to save energy many fishes in the deep sea have low metabolism (meaning they need less oxygen than the fish in different environments). Due to the availability of food. They move little, instead waiting for food to fall from the more nutrient-rich layers above them. This way, they can use less oxygen for energy production.
– Written By 1957 saurav kumar
