overview
Opium fish are a class of bony fish, turbots, and are a type of flounder. The body of the opium fish is flattened and asymmetrical, and both eyes are on the left side; Oral position, with a protrusion of the lower jaw; The edge of the anterior gill cap is free; The skin on the ocular side is dark grey or has patchy lines, and the skin on the eyeless side is white.
Morphological characteristics
The fish has a long body, slightly flattened sides, and a rounded abdomen. The anterior half of the head is slender, slightly tubular, and the snout is flattened like a duck's beak. The mouth is superior, the lower jaw is tilted upwards and longer than the upper jaw, and the end of the maxilla reaches below the anterior margin. The eyes are medium large, closer to the end of the snout, protruding to both sides, the cheeks are very wide, and the head behind the eyes is 2 to 2.5 times the length of the snout. Hypopharyngeal teeth 1 row, slender. The scales are small, and the lateral line is slightly curved towards the ventral surface; Lateral scales 140 to 170. Dorsal fin III.8, without hard spines, starts after the ventral fin. fin III.9 to 11. The caudal fin is deeply forked , and the lower leaf tips are longer than the upper lobes.
The back is dark grey, the abdomen and the lower half of the sides are silvery white, the pectoral fin is reddish, the dorsal fin and caudal fin are gray, the ventral fin and fin are gray, and the posterior edge of the caudal fin is black, with a slight black longitudinal stripe above the lateral line. It is a large and ferocious fish in the river.
Opium fish
Habits of life
It lives in the middle and lower layers of the water, and has the habit of migrating in the rivers and lakes. The spawning period is from April to July. It is a benthic cold-water fish, carnivorous, and feeds on crustaceans in the juvenile stage, while adult fish prey on small fish, shrimp and so on.
Distribution range
It is native to the northern Atlantic Ocean, and Is mainly distributed in the Yellow Sea and the Bohai Sea in China.
nutritive value
The flesh of opium fish is tender and white, and Chinese medicine believes that opium fish is sweet, flat and non-toxic; Can make up for weakness and vitality. Delicious and fat, tonic and beneficial, but should not eat more, has a kinetic effect. It is edible by the general population.
Opium fish is delicious in meat, high in oil and fat, especially in the fins and under the skin, which is rich in gum, which is respected by many diners. Many of the fish bodies of opium fish (turbot) are exported to Japan for sashimi, and opium fish heads are common in China.
Online opium fish sales
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The trend in November is rising every year, and this year it may be affected by the epidemic and may decline sharply
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