The value of cartilaginous fish

What is the significance of cartilaginous fish in human life and nature, you will learn from this article.

The class of cartilaginous fish includes inhabitants of the oceans and seas, which have a cartilaginous skeleton consisting of a skull and a vertebral column.

The economic importance of cartilaginous fish

Of all the products of animal origin that a person eats, about 14% are fish. Flour is also made from it. Livestock is fed and used as fertilizer. Bone fish contain a huge amount of vitamins A and D, proteins. Also, the liver of one representative - sharks, is rich in fat-soluble vitamins: the main component of some types of medicines. Fat is extracted from parts of the body of large cartilaginous fish for technical purposes.

From cartilaginous fish prepare delicious, exotic and expensive dishes.

Also, fish have an aesthetic character. Shark teeth serve as material for the manufacture of various souvenirs, jewelry and amulets. Small types of cartilage: vivid representatives of carpet and cat sharks, stingrays live in home aquariums or are pupils of aquariums.

The importance of cartilaginous fish in nature

The species of cartilaginous fish play an important role in the ecosystems of the oceans and seas. They feed on plankton, and small fish themselves are the food base for large predator fish. Interestingly, representatives of the same species can eat each other.

Negative value of cartilaginous fish

Some representatives of cartilaginous fish pose a danger to humans. Most of them are sharks. The largest predatory representative is the white shark and hammer fish. She at a distance of 6 m can smell the rhythm of the heartbeat of her victim.

We hope that from this article you will learn the importance of cartilaginous fish.