Essay on Fish


Fish is an aquatic living organism that is seen in all kinds of water bodies. Fishes are of great importance to maintain the balance in the ecosystem, and humans mainly depend on them for consumption. There are around 35,000 species of fish in the world; this exhibits the greatest diversity in species among all vertebrate groups. Scientifically, fishes are considered the initial living organisms on the earth.

Essay on fish is important for children to understand the life span of fish and their significance in the ecosystem. It is a good idea to make children understand the importance of fish. You can also encourage them to raise fish as pets.

Features of Fishes

The body of a fish consists of a head, trunk and tail. In the majority of the fishes, the body demarcation is not clearly visible. The skeleton of fish is either made of cartilage (cartilaginous fish), or bone (bony fish), which provide the shape and structure for fish.

Fishes appear in beautiful sizes and shapes. The largest known fish is the whale which is considered as dangerous. The different species of whales are blue whales, killer whales, pilot whales, etc. The blue whale weighs up to 150 tons and is about 115 feet in length. Due to these features, whales are the most hunted species. Today, over-hunting is pushing the whale fishes to the verge of extinction.

Another famous species of fish is the white shark. Children can learn more about white shark fish through the essay on the white shark. The white sharks are considered the largest fish in the sea, and it preys on the small fish in the sea. A few species of sharks are very dangerous. Poisonous fish can kill a human and can detect human smell easily. White shark fish are capable of adjusting themselves to the differences in water temperature. Some species of these fishes are goldfish, common carp, guppies, nile tilapia, wels catfish, ocean sunfish, etc.


Fishes are beautiful aquatic creatures. Today, fish hunting is widely practised for obtaining various items present in their skin. Consumption of fish has also increased, resulting in the extinction of some species. Hence, the government has taken measures to preserve these creatures. The hunting of whale fish has been banned by the government of India to save it from extinction. Kids learning about fish helps them learn in detail about aquatic animals and their importance in the ecosystem.

Frequently Asked Questions

What is the importance of fish?

Fish is rich in omega-3 fatty acids and vitamins, such as D and B2 (riboflavin). Fish consists of calcium and phosphorus and various minerals, like iron, zinc, iodine, magnesium, and potassium.

Why is it important to save fish?

Fish plays an important role in the nutrient cycles, as they store major portions of the essential nutrients in their bodies. They are the main source of various vitamins and minerals. Hence, they should be saved.

Is fish good for skin and hair?

Healthful fats are an essential part of every diet. Omega-3 fatty acids are beneficial for the heart, as well as the hair, skin, and eyes, and fish are rich sources of omega-3 fatty acids.

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