The division of fish can be carried out from many aspects, for example, cod can be divided into freshwater fish and marine fish from the aspect of living environment.Cod is a kind of marine fish, because they are living in the sea in a fish.In the long process of survival, cod live in the ocean, so their body structure and various regulatory mechanisms are suitable for the marine environment.In terms of specific distribution areas, cod is widely distributed all over the world.Especially in the North Pacific region, there are more cod in the sea area.
In terms of distribution latitude, cod is more distributed in the waters of high latitudes. This is because cod is a cold-water fish in terms of habits, so they are more suitable for living in cooler water, such as the North Pacific Ocean mentioned above.In addition, from the depth of distribution, when cod is relatively small, it is distributed in shallow sea water, usually at a depth of 80-100 meters; When the cod reach maturity, they are found in deeper waters, generally between 175 and 225 metres.
There are spines in the body of cod, and fish basically have spines, but the number of spines is different.As mentioned above, cod belongs to a kind of marine fish.Many marine fish do not have a lot of spines, and so do cod, although they have spines, but the number of spines is not large.The spines in the cod body are mainly some relatively large spines, and the arrangement is relatively regular, which is more convenient to deal with.As for some very small or messy spines, they do not exist in cod.Moreover, cod is very nutritious and meaty, so many people choose them as ingredients.
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