Flatfish is a kind of fish that we are all familiar with, referring to fish in the order Platichyphylla, class Actinopterygii, phylum Chordata.It can be seen that they include a very large range, including many families of fish, in general, including many species.The flatfish's body is relatively flat, their body is not symmetrical, two eyes on one side of their body, which is different from many other fish, so they can be distinguished from other species of fish by this feature.
From the point of view of living environment, most flounder live in the ocean.Because there are so many species of flatfish, their distribution is very wide in the world.Especially in tropical waters, the number of flounder is very large.Flatfish live from offshore areas to depths of 2000 meters, and offshore species are the most abundant.In addition to these flatfish living in the ocean, in fact, a small number of flatfish can live in fresh water, distributed in rivers and other freshwater basins.Flatfish are carnivorous, feeding on worms and crustaceans in the water.
If we classify flatfish from their living environment, then most flatfish live in the ocean and belong to seawater fish.There are so many species of flatfish living in the ocean that they are widely distributed in the world's oceans.However, there are some species that can live in fresh water, such as the European flounder, which often moves in fresh water.Of course, the species of flatfish that live in fresh water are relatively small, and most flatfish are marine fish.
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