The partial mouth fish is the flatfish that we are all familiar with. They refer to many fish in the Pleuronectiformes.There are many kinds of partial mouth fish, and there are more than 500 kinds of partial mouth fish in the world.These side mouth fish are not all the same, and they are different in many ways.For example, in the living environment is different, the vast majority of partial mouth fish species are marine fish, living in the ocean.However, the specific distribution of different species is different in the sea area, and the distribution depth is also different.Most of them live in the shallow sea near the sea, and a few live in the deep sea.
However, it is important to note that not all of these fish are marine.In addition to most of the partial mouth fish living in the ocean, there are some living in fresh water.Therefore, this small number of partial mouth fish is not marine fish, but freshwater fish.Compared with the freshwater and marine fish, the difference is relatively large.
The partial mouth fish has been introduced above, including more than 500 species, most of which are marine fish, only a small part of which are freshwater fish.The habits of these freshwater fish living in the ocean are not exactly the same, and the depth of the sea they inhabit is different.Most of them live in coastal areas, that is, relatively shallow waters, that is to say, this part of the marine fish is not deep-sea fish.There are also a small number of deep-sea fish living in the depths of the ocean.Until about 2000 meters deep in the sea, there are also some species of partial mouth fish inhabiting here.
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