Qilu Network Yantai November 25 news Dragon fish, also known as tongue fish, seawater fish, is a kind of fish. The price of this fish is relatively expensive, about 100 yuan per kilogram, but it is found that the processed longli fish fillet sold in some supermarkets is very cheap, as long as about 20 yuan per kilogram, this cheap dragon lily fish, many of which are impersonated.
The reporter inquired about the dragon fish in a supermarket guide in Laishan District, Yantai, and the other party took the reporter to the counter of the basa fish, and made it clear that the basa fish is the dragon fish. Similar claims have been heard in other supermarkets and wholesale seafood markets.
"This dragon fish is basa fillet, that's it." A supermarket shopping guide said. The owner of the fish wholesale market also told reporters: "Basa fish and dragon fish are one thing, a kind of fish. ”
Freshwater fish and marine fish cannot be confused
Are the dragon fish and the basa fish a fish? With the photos taken, the reporter found a professional aquatic expert.
Chen Jun, a lecturer in the Department of Fisheries of the College of Agriculture of Ludong University, told reporters: "It is definitely not a dragon fish. The dragonfish is actually what we often call an economic species, which refers to the semi-slippery tongue fish and the large scale tongue fish. It belongs to the order quail, glossaceae, glossocarpaceae, sycamore. ”
So what kind of fish is the basa fish sold by merchants?
"The basha fish is actually called the catfish, it is a fish of the catfish family, the catfish family, the genus Mangsho." Chen Jun told reporters that the two kinds of fish are one of marine fish and the other of freshwater fish, and the difference is very large. However, after processing, basa fish is often used to impersonate dragon fish fillet.
Detected that the "real body" contains the ingredient of barting
"Our sauerkraut fish noodles are dragon fish, and there is only one kind of fish in our family." It's the frozen fish in the deep sea, there are no fish spines. The staff of THEODA Noodle Restaurant in Laishan District, Yantai City, told reporters.
In this noodle restaurant and a supermarket in Yantai's Laishan District, the products are marked with dragon fish. The reporter purchased a piece of fish meat and sent it to the Inspection and Quarantine Technology Center of the Shandong Provincial Entry-Exit Inspection and Quarantine Bureau for fish fingerling testing. The results showed that both types of fish were bardings, not dragon fish as written on the labels of the merchants.
Chen Jun told reporters: "Bading fish and longli fish are two completely different kinds of fish, and the two of them are very, very distant in fish classification, belonging to different orders. Bardins and basha are two very similar species of fish, both belonging to the genus Catfish, which are very similar in appearance. ”
It is understood that bardench and basa fish are freshwater farmed fish introduced from Southeast Asia in recent years, and these two fish are often used to impersonate Longli fish fillet after processing.
How to distinguish between true and false dragon fish?
The dragon fish is a marine fish, and the basha and badines are freshwater fish, which are very different in appearance. "If you want to buy real dragon fish, it is recommended not to buy deep-processed fish fillets, but directly to the market to buy fish that has not been deep-processed, the whole one." Dragon fish can be intuitively identified. Han Chaozheng, head chef of Yantai Shanhai International Hotel, told reporters.
Although the appearance looks very similar after processing into fish fillets, because the body structure of the dragon fish is completely asymmetrical, the species can still be identified through careful observation. "The front end is facing forward, the rear end is facing backwards, see if the side bulge is facing left or right, if all the fillets are facing left, it must be a dragon fish, but if the fish fillets picked up are both left and right, then it is not a dragon fish, it must be fake and shoddy." Chen Jun told reporters.
Another simple and straightforward way is to look at the price. At present, the market barcha fish, barting fish fillet can be bought for more than ten yuan, and the real dragon fish fillet is rare, the price is more than 50 yuan a catty.
Song Xinna, director of the Clinical Nutrition Department of Yantai Yuhuangding Hospital, told reporters: "Compared with freshwater fish and farmed fish, the nutritional value of marine fish is relatively high, mainly because sea fish eat seaweed, so its body is rich in unsaturated fatty acids, rich in iodine and other nutrients, freshwater fish It does not have this role of marine fish." ”
Is the pretend dragon fish nutritious?
Studies have proved that some nutrients in marine fish can prevent cardiovascular and cerebrovascular diseases and tumors, and also have antioxidant and anti-aging effects, experts recommend eating marine fish two to three times a week. "For children, eating more fish appropriately, especially this fish containing NHA and EPA, which contain unsaturated fatty acids in the deep sea, can promote the development of the brain, promote the development of the nervous system, and promote the development of the eyes." Song Xinna said.
Experts also said that bartings and basa fish also have high nutritional value, because the price is relatively cheap, so the cost performance is higher. "Bartings and basha fish are also very good edible fish, and their nutritional value is also very high, so don't be prejudiced against them because they are not dragon fish." Chen Jun told reporters.
Editor's note: The three kinds of fish mentioned in the program are all very good edible fish, rich in nutrition and delicious meat. However, we can't spend the price of dragon fish to eat bartings and basha fish. As a business, you must make a clear distinction between different fish, which is the most basic obligation of the operator.