Are green swordfish and saury the same? Can you tell the difference between them? Is there a big difference in price? Which one is better?

On the question of "is the green occupation fish the same as the saury?", more than one person expressed doubts on the Internet, and many people even thought they were the same kind of fish. So, are the green fish and the saury the same after all? Can you tell the difference between them? Is there a big difference in price between the two? Which one is better?

In fact, green fish and saury are not the same kind of fish. The differences between them are mainly reflected in:

1. Different subjects

Green saury, also known as mackerel, belongs to the mackerel family and mackerel genus; saury is the only species of jaw needle fish, bamboo saury family, saury genus, and it is also one of the important edible fish.

Second, different forms

The body of Qingzhan fish is stout and slightly flat, showing a spindle shape, with a general body length of 20 cm and a weight of 150 cm and 400 grams. The head is large, the front end is like a cone, the eye is high, the mouth is large, the upper and lower jaws are equal, each has a row of fine teeth, the plough bone and hip have teeth. The body is covered with small round scales, the back of the body is bluish black or dark blue, and there are irregular dark blue insect etching lines above the horizontal line of the pectoral fins on both sides of the body. The abdomen is white and yellowish. There are 2 dorsal fins, which are far apart, the first dorsal fin has 910 spines, the second dorsal fin is opposite to the anal fin, and there are 5 small fins at the top and bottom of the caudal fin; the caudal fin is deeply forked and there are two ridges on both sides of the base; the pectoral fin is light black, the anal fin is light pink, and the other fins are yellowish.

The body of autumn knife fish is elongated and slender, flattened laterally. The head is long, the back is flat, and there is a weak edge in the center. In the anterior position of the mouth, the front is straight and the posterior is slightly oblique. The jaws extend forward with a short beak, and the lower jaw is protruding than the upper jaw. The teeth are small, with 1 row in each jaw, concentrated in the front and little or none in the back. The Gill rake is slender and has no false Gill. Pectoral fins small, truncate. The dorsal and anal fins are located behind the body. There are no hard spines, all of them have small fins; the dorsal fin has 10-12 soft strips and 6-7 fins, and the anal fin has 12-15 soft strips and 7 fins; the ventral fin is located below the center between the posterior edge of the operculum and the starting point of the anal fin; the caudal fin is deeply forked and the inferior fork is slightly longer; the vertebrae are 62-69; the body is covered with small round scales, easy to fall off; the lateral line is inferior, near the ventral margin. The back and upper part of the body are dark grayish blue, the ventral side is silver-white, and there is a silver-blue longitudinal band in the center of the body. The body length can be up to 35 cm.

Third, the distribution is different

Green fish are distributed in the western North Pacific Ocean, China, Korea, Japan and the Russian far East, as far north as the Okhotsk Sea. It can be divided into two local populations: one in the Sea of Japan, the other in the Yellow Sea and the East China Sea, and is one of the main economic fish in the western North Pacific Ocean.

Saury is distributed in the North Pacific region, including the Sea of Japan, Alaska, the Bering Sea, California, Mexico and other waters. Latitude 67-18 degrees north, longitude 137 degrees east-longitude 108 degrees west. The preferred water temperature is 15-18 degrees Celsius. China is mainly distributed in the Yellow Sea and the east coast of Shandong.

How to distinguish between green squid and saury?

First, look at the figure

The green fish is stout and slightly flat; the saury is round and rod-shaped.

Second, look at the dorsal fin

The two dorsal fins are far apart, the first dorsal fin has 10 spines, the second dorsal fin is opposite to the anal fin, and the second dorsal fin is opposite to the anal fin, and there are 5-6 fins behind the dorsal fin of saury.

Third, look at the color

The back of the fish is bluish black or dark blue, the pectoral fins on both sides of the body have irregular dark blue insect etching above the horizontal line, and the abdomen is white and yellowish; the back of the fish is dark blue, the abdomen is silver, and the snout and tail stalk are slightly yellowish.

Fourth, look at the teeth

The green fish has a large mouth, equal upper and lower jaw, each with a row of fine teeth, plough bone and cross bone with teeth; the saury extends forward with a short beak, the lower jaw is protruding than the upper jaw, and the teeth are thin and weak.

As for the price, saury and green fish are both sea fish, and they are common fish in the upper layer of the shallow sea. They are both small and the price difference is not big. They are both very cheap, seven or eight yuan per jin. However, saury market is relatively rare, generally used in Japanese cuisine, domestic dishes are rarely used, are frozen goods.

The nutritional value of green swordfish is about the same as that of saury, which is relatively fat, braised in brown sauce and thinner than saury, mostly fried.