Stingrays, stingrays are commonly known as stingrays and devil rays. The tail is a spine with poisonous glands at the top, which is very sharp. When stingrays feel threatened, they will attack each other with stingers. Australian wildlife expert steve irwin died in 2006 after being stabbed in the chest by a stingray barb.
A few days ago, Zeb Hogan, an American biologist, caught a stingray 6 feet long (about 1.83 meters) and weighing 200 pounds (9 1 kg) in a river in Cambodia. It looks like the deep-water monster in the movie. But if you think it is the largest freshwater fish, it is all wet. Because it is said that there are stingrays as long as 14 feet (about 4.3 meters) in rivers in Cambodia.
If you meet such a big scary-looking fish while swimming, you will definitely be scared to death, but unfortunately, devil fish are basically hard to see.
2. Sturgeon is the largest freshwater fish in the world, generally 2-3 meters long and weighing 200-400 kilograms; The maximum gross length can be as long as 7.5 meters, and the weight exceeds 1000 kg.
From the evolutionary point of view, sturgeon is an ancient fish in the world. Its bones are mostly cartilage with residual notochord, but its phosphorus tail is a hard bone plate, which is called hard phosphorus in the inherent cartilage.
Sturgeon's head is slightly triangular, and its kiss is long and small. Below the mouth, it is relatively large and has two pairs of tentacles.
There are five rows of diamond-shaped bone plates on the body surface, each row has a sharp spinous process, and the skin in other parts is rough. The tail is oblique, the upper leaves are long and sharp, and the lower leaves are short and thick.
The back is dark brown and the abdomen is silvery white. The body shape is obviously different from other freshwater fish, but it has many similarities with marine sharks.
3. What is the largest freshwater fish in the world? A British angler recently caught a giant stingray in a remote river in Thailand, which may be the largest freshwater fish ever caught by human beings. Fisherman Ian Welch and his four colleagues took 45 minutes to subdue this big fish (1.8 cm) with a width of 6 feet and a length of 14 feet (about 4.2 meters). Welch, a 45-year-old doctor engaged in freshwater fish research, and his colleagues dragged the fish to the surface for measurement, and then put it back into the river.
4. What are the largest 10 species of freshwater fish in the world?
Maximum size: the maximum weight of an adult is about 50 kg and the body length is about 2 meters.
Habitat: There are five species in the world, distributed in the Danube River basin in northern Asia and Europe.
2. Giant catfish in Mekong River
Maximum size: 1 18 inch (300 cm), 66 1.4 lb (about 300 kg).
Habitat: Mekong River and Southeast Asia.
3. Mississippi paddlefish
Maximum size: 87 inches (about 22 1 cm) with head bone plate.
Habitat: Mississippi River in North America.
4. European giant catfish
Maximum size: 197 inch (about 500 cm), 675 pounds (about 306 kg)
Habitat: Widely distributed in Europe and Asia.
5.crocodile eel
Maximum size: 120 inch (about 305 cm), 300 pounds (about 136 kg).
Habitat: Mississippi River in North America.
6. Nile perch
Maximum size: 79 inches (about 200 cm), 44 1 lb (about 200 kg)
Habitat: Nile Valley, Africa
7.giant freshwater stingray
Maximum size: 197 inches (about 500 cm), 1323 pounds (about 600 kg), 95 inches (about 240 cm) without tail.
Habitat: Mekong River and Southeast Asia.
8, giant bone tongue fish
Maximum size: 177 inch (about 450 cm), 44 1 pound (about 200 kg).
Habitat: Amazon basin in South America.
9. Australian freshwater cod
Maximum size: 79 inches (about 200 cm), 250 pounds (about 1 13.5 kg).
Habitat: murray river coast.
10, Siamese giant carp
Maximum size: 1 18 inch (about 300 cm), 66 1.5 lb (about 300 kg).
Habitat: Mekong River Basin in Southeast Asia.
Endangered level of the Red List of World Nature Conservation: not included.
5. What is the largest freshwater fish in the world? The world's largest freshwater fish catfish.
There are many kinds of catfish, some live in the sea and some live in fresh water. Today we are going to introduce a 200-Jin freshwater catfish. This is Sheila Penfold, a 56-year-old British blind woman. During her recent holiday in Barcelona, Spain, she caught a freshwater catfish weighing 97.85kg with flounder bait. Sheila and this fish are currently listed in Guinness World Records.
Siluriformes, also known as Siluriformes, belong to Ostriniformes suborder, commonly known as catfish and catfish. Catfish are found everywhere on seven continents except Antarctica. Some catfish are marine fish. This fish varies greatly in size.
European catfish is the largest freshwater fish in the world, with a length of 5 meters and a weight of 330 kilograms.
The largest recorded European catfish is 5 meters long and weighs 336 kilograms (but most European catfish are about 2 meters long and rarely weigh more than 100 kilograms). It grows in Russia in the19th century, and is much larger than any known catfish, including the 2.7m Pangasianodon gigas. The Brachyplatystoma filamentosum (commonly known as Satan's duckbill) weighing 293kg is 2.7m, and the catfish is 4m in size. However, such a huge European catfish may never be seen again today.
6. What is the largest freshwater fish in the world?
Paddlefish, also known as elephant fish, elephant trunk fish, swordfish, etc. Lizards, lizards. Produced in China, it mainly grows in the middle and lower reaches of the Yangtze River, Dongting Lake, Qiantang River and Heilongjiang. It has a gray-green back, a white belly, a long nose, a big mouth and a short neck, and small eyes. There are five rows of diamond-shaped bone plates on its body, one of which has thorns. The upper leaves on its tail are long and sharp, and the lower leaves are short and thick. It is fierce by nature and specializes in eating small animals such as fish, shrimp and crabs. The body length is generally 2-3 meters, the big one is 6_7.5 meters, weighing 2000 kilograms, and the big one can reach 4000 kilograms. It is the largest freshwater fish in the world.
The world's largest freshwater fish, the paddlefish, is unknown. They may all be extinct. I haven't seen it anyway.