Seeking the world s fish encyclopedia, what fish are there in the world?

1. Blackfish, is the common name for snakehead. It is the most widely distributed and most productive species of snakehead fish, also known as mullet, raw fish, wealth fish, snake fish, fire head fish, black snakehead and so on.

2. Carp, Chinese aliases carp, carp, hair, red fish. A thick brown fish in the family Cyprinidae, the scientific name is cyprinus carpio. Native to Asia, it was later introduced to Europe, North America and other regions, omnivorous.

3. TunaIt is a group of marine fish under the class Bony Fishes, Mackereles, and Mackerelidae. The family consists of 15 species of tuna in 5 genera, and the size of each species varies greatly, from the smallest tuna being the rudder skipjack tuna to the largest being the Atlantic bluefin tuna.

4. SalmonIt is a ferocious carnivorous fish of the family Salmonidae, Pacific Salmon. The body is flattened laterally, the dorsoventral outer outline is symmetrical, spindle-shaped. The head length is slightly equal to the body height, the mouth is in a terminal position, the mouth is large, and the maxilla extends posteriorly to the posterior edge of the eye, obliquely downward, like a bird's beak.

5. TilapiaNative to Africa, it is a tropical fish, and there are more than 100 species of tilapia including subspecies. Tilapia has the characteristics of fast generation, high yield, miscellaneous diet, few diseases, and strong fecundity.

The above content reference: Encyclopedia - Salmon.

The above content reference: Encyclopedia - Tuna family.

The above content reference: Encyclopedia - Carp.

The above content reference: Encyclopedia - Blackfish.

The above content reference: Encyclopedia - Tilapia.

Common fish: saury, herring, crucian carp, carp, shark, loach, Chinese sturgeon, silver carp, bighead carp, etcThere are more than 20,000 species of fish in the world. Among them, there are about 73 species of roundmouths, about 800 species of cartilaginous fishes, and about 20,000 species of bony fishes.

There are about 3,000 species of fish in China. Among them, there are more than 2,100 species of marine fish and about 1,010 species of freshwater fish.

Fish inhabit almost all aquatic environments on Earth – from freshwater lakes and rivers to saltwater seas and oceans, with two-thirds of the oceans and the rest living in freshwater.

Habits. Most fish species live either in freshwater or saltwater, but less than 10 percent of migratory fish species migrate back and forth between both freshwater and marine habitats.

Growing in the ocean but needing to go to freshwater to breed is called anadromous migration (e.g., Chinese sturgeon), and growing in freshwater but needing to go to the ocean to breed is called descending migratory (e.g., flower eel). If the fattening and breeding migration occurs between rivers and lakes, they are called semi-migratory fishes, which are generally fattened in lakes and spawned in rivers (e.g., the four large fish). Keeping migratory corridors open is essential for the survival of some migratory or semi-migratory fish species.

Clownfish, carp, guppies, loaches.

The world's top 10 rare marine animals include the Gulf porpoise, dugong, bluefin tuna, blue whale, hawksbill turtle, New Zealand sea lion, yellow-lipped fish, elk coral, leather turtle, freshwater wrasse carp.

1. Jiawan porpoise.

Due to the narrow habitat and habit of warm water areas, fishermen can easily trap them in nets when fishing, coupled with environmental pollution and malicious killing, which has become the main reason for the extinction of the Gulf porpoise.

2. Dugong. Dugongs, known as "mermaids", are very similar to manatees and are currently found mainly in tropical areas. Dugongs are very slow to move, and have high requirements for water quality, and are prone to problems such as pneumonia and ** disease, coupled with human hunting, resulting in dugongs gradually becoming endangered creatures.

3. Bluefin tuna.

Bluefin tuna are mainly found in the Pacific and Atlantic oceans, where they live at different depths and prefer to move in groups. Due to overfishing, bluefin tuna was listed for conservation in 2009 and will soon become extinct if not restricted.

4. Blue whale. The blue whale is currently the largest creature in the world, eating more than 4 tons a day and weighing more than 200 tons at its heaviest. Due to the frequent hunting in the last century, blue whales are an endangered species, and as of now, there are fewer than 50 blue whales in the world.

5. Tortoiseshell. The hawksbill turtle is a sea turtle, its size is relatively large, usually more than a meter, and the forehead is also distributed with scales, due to overfishing has made the hawksbill turtle an endangered marine animal, in China's waters are almost impossible to see this turtle.

6. New Zealand sea lions.

New Zealand sea lions are mainly distributed in the Antarctic Islands of New Zealand, and due to the habitat and hunting problems, they have been upgraded to an endangered species and are included in the Red List of Endangered Species.

7. Yellow-lipped fish.

Yellow-lipped fish is a fish species that only exists in China, and its appearance is very special, and it was listed as an endangered marine animal in 2006 and is a national second-class protected animal.

8. Elk coral.

Mainly found in the Caribbean, elk corals are rare creatures that are difficult to see in other seas and are currently in danger of extinction.

9. Leather turtle. The leather turtle is currently the largest turtle in the world, with a maximum weight of more than 900 kilograms, and is said to have appeared 100 million years ago, and has now become a rare marine animal and is included in the red list of endangered species.

10. Freshwater wrasse.

Freshwater Napoleon wrasse is mainly distributed in Oceania, the Great Barrier Reef and the Red Sea and other seas, this fish is very special, born as a female, at the age of about 9 will transform into a male, now freshwater Napoleon wrasse has been relatively rare, belongs to rare creatures.

The fish that are available in the world are as follows:

1. Crested betta fish

Cresttails are popular in the United States for their beautiful oaky fins, they are an extremely aggressive fish with an average lifespan of 2 to 3 years, usually red and blue, and these fish grow up to 3 inches in size.

2. Horsetail betta fish

Horsetail bettas are one of the most common species and one of the most beautiful. They are easy to spot because they have a long, open, and untidy tail that arches upwards and then slopes downwards to look very ethereal and graceful, with a strong ability to adapt to the ridges.

3. General Betta

The General Betta is a fish with a very short body length, and unlike the longfin fish, this type of fish has short fins, so they can move quickly in battle and take less damage. You can buy them directly from any local Thai store, and they are extremely aggressive fish and one of the most beautiful in the world.

4. Half-moon fish

Known for their beautiful fins and color, they are black all over their bodies, and in addition to their white tails, they are also one of the most aggressive fishes.

5. Comb tail betta fish

The comb-tailed betta fish is a beautiful fish of the wild oak species, similar to the crowntail fish. Their fins are particularly long and large, and although their appearance is not as sharp as that of other fish, this fish is a combination of crown tail and half-moon fish.