Love cod?
At present, there are some people called "cod" on the market, which have nothing to do with "cod" in terms of species classification, and are false cod.
However, fake cod is not necessarily bad, and even some fake cod are more expensive than real cod.
New Zealand blue cod
New Zealand perch is also called blue bass, Latin scientific name Paraparcis colias, English name New Zealand blue cod, Boston blue cod and so on.
It is actually a perch-pseudospora-perch fish, which has nothing to do with cod, but the annual catch is only a few thousand tons, which is generally not seen in China.
Antarctic cod
The small-scaled canine toothfish, also known as canine toothfish, Antarctic cod, (French) silver cod, Chilean sea bass, its Latin scientific name is Dissostichus eleginoides, and the English name is Paagonian toothfish.
It is a genus of perch-Antarctic fishes,in the genus Canine tooth antarctica, and cod is really not comparable, purely because of the similarity of flesh color and flesh quality.
It is mainly distributed in the waters near the Antarctic, the body length can reach more than 2 meters, commercial fishing began around the 1980s, the current global annual catch is only about 20,000 tons, so there is almost no authenticity below 100 yuan.
Black cod
Naked fish, commonly known as silver cod, black cod, blue cod, Latin scientific name Anoplopoma fimbria, English name sablefish, black cod, blue cod.
It is actually a fish of the order Scorpene-Blackfish family, and is very closely related to cod.
It is the most famous "cod", that is, "silver cod", because the global annual catch is only about 20,000 tons, so the price is very expensive, and the ones below 100 yuan are almost certainly fake.
Many people say that it has nothing to do with cod in taxonomy, but in fact it was originally named Gadus fimbria, that is, cod, but the classification was later revised.
It and the canine tooth fish are both known as silver cod, but its flesh is superior because it has a creamy aroma when eaten.
Flat cod
Quack flounder, commonly known as Greenland flat cod, Icelandic flat cod, scientific name is Hippoglossus hippoglossus, English call Greenland Halibut or Pacific halibut, mainly distributed in the North Atlantic, Barents Sea and other places.
It is actually a kind of halibut, which is far from cod, its body length can reach about 2 meters 5, and the annual catch is less than 20,000 tons, so there is almost no real product below 100 yuan.
Because it is a flounder, it is very easy to identify the appearance, and it is deep on one side and shallow on the other.
Oil fish
The last to appear is the "infamous" oil fish, which is a collective term for two species of fish, namely the spiny snake mackerel (Latin scientific name Ruvettus pretiosus) and the heteroscaled snake mackerel (Latin scientific name Lepidocybium flavobrunneum).
Sometimes they are also called cod, dragon cod, round cod, platinum gun, etc., they belong to the order Perch - snake mackerel family, and cod is very distantly related, but it is not easy to distinguish after slicing, and its price is comparable to that of authentic cod. (Actually often used to impersonate tuna)
Article, Ma Yili's daughter once had diarrhea because she ate cod pretending to be oil fish, and this problem was widely reported by the media.
Oil fish contains a large number of wax esters that the human body cannot digest, a small amount of non-toxic and harmless, and even a good taste, but a large number of consumption can cause diarrhea symptoms, not suitable for infants and young children to eat, some countries even prohibit circulation and sales.
If you want to experience the feeling of running oil on your butt, you may wish to give it a try.
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Common fake "cod" species are roughly these, but for consumers, how to identify and choose?
First of all, I think it is difficult to identify by appearance, especially since the appearance of many species is very close to that of real cod.
The correct approach is to look at the English name, Latin scientific name and origin information, and the words Cod, Gadus, Pollock, Hake and so on are common in general cod. (Of course, if the merchant does not label it truthfully, there will be no ruts)
Secondly, it is not very good to distinguish the authenticity of cod from the price, but delicious and nutritious cod is usually not cheap.
Real cod is not always high-priced, some "false cod" is more expensive, and the amount of ice, the use of water retention agents and other factors will also have a great impact on the price.
In addition, cod and fish called "cod" are considerable deep-sea demersal fish, although the meat is delicious and nutritious, but carnivorous fish are easy to enrich heavy metals (such as methylmercury), so it is not necessarily suitable for children as a food supplement.
In contrast, farmed Atlantic salmon or freshwater rainbow trout is more suitable for children (cooked food), both safe and nutritious.