In the animal world, there are many strange animals, and some animals will have the shape characteristics of other animals. Recently in the Qiantang River in Hangzhou, fishermen caught a strange fish, the shape of this fish is very peculiar, the shape is somewhat like sturgeon, but the fish mouth has a duck mouth, which makes it easy to think that it is a rare species, and quickly notify the fishery department.
According to the measurements of the staff of the fisheries department, the length of this strange fish is about 80 centimeters, the weight is 2.5 kilograms, and the most obvious feature is the mouth of the duck. It was confirmed that this strange fish is an exotic species, the duck-billed sturgeon, native to the Mississippi River Basin in the United States, and the duck-billed sturgeon is an economic edible fish that is farmed in many places.
As an exotic fish, the duck-billed sturgeon is not a native fish, so the individual duck-billed sturgeon that now appears in domestic rivers are basically artificially farmed duck-billed sturgeon, which may be escaped from the farm by these individual duck-billed sturgeon for various reasons and escape to the wild rivers.
Among fish, the duck-billed sturgeon is also known as the American spoon-nosed sturgeon, because its population native habitat in the Mississippi River Basin in the United States, this fish is obviously characterized by a long duck bill, and the duck-billed sturgeon's duck beak is particularly long, several times longer than the mouth of the general duck, the adult body of the duck-billed sturgeon is generally about 50 cm, but the long and flat mouth has accounted for more than half of the fish body, so it is also called duck-billed fish.
Duckbill sturgeon is native to the United States, but now it is very widely distributed, because it has a large ornamental value, edible value, etc., many aquariums, farms, etc. have been raised, plus the ability of platypus to adapt to the environment is very strong, the growth and reproduction speed is fast, under normal circumstances, platypus can lay 6 million eggs a year, so the number of farmed platypus is very large.
Platypus is a common fish and a rare fish because it is one of only two species in the world's spoon-sturgeon family, and it was a fish that existed 300 million years before the dinosaur period and has lived until now, so the platypus is also a rare sturgeon.
Pay attention to the six dimensions of nature And let nature know nature!