The study of benthos is an important field in marine biology.

Phytobenthos is an important part of the marine ecosystem.

My boat is equipped with the latest fishfinder.

He found a way to profit from a difficult situation like fishing at the bottom of a river.

He was swimming freely as if he was a fish playing in the pot.

He is a person who follows his own path, and the phrase 'a big fish does not swim into a small stream' fits him perfectly.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

He said, 'Man shall not live by bread alone,' teaching me that spiritual satisfaction is also important.