Is the swordfish a belt fish?
The swordfish is not a belt fish. Swordfish is a freshwater fish of the genus Herring-shaped anchovy, which, together with puffer fish and shad, is called the three delicacies of the Yangtze River in China, while the belt fish is a saltwater fish of the family Perciformes.
The difference between swordfish and belt fish
1. Different shapes
The size of the swordfish is small, and the length of the adult swordfish is generally between 18 and 25 centimeters. The swordfish is long, flat on the side, and tapers backward in the shape of a sickle. The head and back are light blue, the body side is yellowish, the abdomen is grayish white, the base of each fin is beige, and the edge of the caudal fin is black.
The average length of adult belt fish is about 1 meter, its side is flat and silver-gray, the dorsal fin and pectoral fin are light gray, with very small spots, the tail is black, and the tip of the head is large, until the tail becomes thinner.
2. The living environment is different
Swordfish is a warm pelagic small migratory fish, which usually lives in the coastal brackish freshwater area, enters fresh water from the estuary during the reproductive season, and goes up the main stream to the production field of the middle reaches of the Yangtze River for reproductive migration.
Belt fish live in the deep sea and are distributed in China's Yellow Sea, Bohai Sea, East China Sea and South China Sea.
3. Food is different.
Swordfish is a small fish species that feeds on worms and fish. Belt fish is a kind of fierce carnivorous fish, which feeds on hairy shrimp, squid and so on.
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