Deep sea fish refers to how many meters below

Pelagic fish with water depths of more than 200 meters are often referred to as deep-sea fish. People call the water depth of 200 3000 meters as the semi-deep sea, the water depth of 300 6000 meters as the deep sea, and the trenches below the depth of 6000 meters as the ultra-deep sea.

For example, the giant tail fish and the posterior anal fish that live in the semi-deep sea have telescopic eyes and can make full use of the glimmer of light here to search for food, and for example, the sunfish that looks like a head and no tail often dives to the semi-deep sea to live, and it is often found swimming slowly on the pelagic sea surface and drifting with the current. Because of its glowing animals, it sparkles when it swims, and is known as the "moonfish", and the macrothroat and cystopharyngeal fish often open their huge mouths to filter seawater for food debris, and many deep-sea fish glow.

There are many species of flounder, most of which are marine fish and a few are freshwater fish. These flounders live in the ocean and are distributed from inshore areas up to 2,000 meters deep into the ocean. Most of them are fish that live in offshore areas and are found in relatively shallow waters.

Only a small number of fish are deep-sea fish, which are distributed in relatively deep waters. Flounders are generally demersal fish that inhabit the bottom of water. <

Flounder is a fish that we are more familiar with, and it is all the fish in the order of plaice from the classification point of view, and it contains a lot of species. There are more than 500 species of flounder in the world, and there are more than 100 species of flounder in China. These flounders are not exactly the same, and sometimes they are quite different, such as their habits.

Most of these species are marine fish and live in the ocean, but they are distributed at different depths.

Most marine fish live in offshore areas, i.e. in shallow waters, and are not deep-sea fish.

However, since there are so many species of flounder, there are some exceptions. A small number of species of flounder inhabit very deep waters, reaching 2,000 meters below the ocean. These flounders are deep-sea fish.

However, there are relatively few such species, and most of the flounder are not deep-sea fish.

Most of the flounder species are marine fish that live in the ocean, and only a few species belong to freshwater jabal fish. Most of these species are inshore fish, and only a few are found in deep waters. There are some species that live in the deep sea zone and are deep-sea fish.

Even as far as 2,000 meters into the depths, there may be some flounder. Although there are not many species of flounder found in the deep sea, they do exist. Therefore, it can be said that there are flounder distributions from the offshore to the bottom of 2,000 meters.

In addition to these marine fish, there are also some flounders that live in freshwater.

Hairtail fish is not a deep-sea fish. Deep-sea fish are a type of marine fish that are classified according to the depth at which they are distributed. Specifically, deep-sea fish need to live at least a depth of several hundred meters, and some even live in the sea at a depth of several thousand meters.

Hairtail fish only live in the sea at a depth of 60 to 100 meters, and cannot be regarded as a deep-sea fish. Although hairtail is not a deep-sea fish, it is a very typical marine fish with a wide distribution and can be found in almost all seas.

Deep-sea fish refers to one of the types of marine fish, which is divided according to the depth of life of marine fish, because they can generally adapt to the environment at a depth of hundreds of meters or even thousands of meters, they are veritable deep-sea fish, and their bodies can also adapt to the very stressful living environment in the deep sea. Hairtail fish, on the other hand, are not included in the category of deep-sea fish, as can be seen from the range of depths in which they live, generally only at depths of 60 to 100 meters. Although the distribution depth is relatively deep compared to freshwater fish, it is still relatively shallow compared to deep-sea fish.

Although hairtail fish are not deep-sea fish, they are a more typical marine fish that live in the ocean and have always lived in it, and can only adapt to similar environments. Hairtail is also a very popular marine fish that can be used as an ingredient, which is distributed in many seas in our country, so it is basically a relatively common fish species in the country, and this fish can often be seen and sold in the market.

As mentioned above, hairtail fish are not deep-sea fish, as they are only distributed at depths of 60-100 meters, and marine fish above 100 meters are relatively rare. Deep-sea fish, on the other hand, are located at least 100 meters or 1,000 meters deep, and live at deeper depths than hairtail fish. The deeper you go to the bottom of the sea, the greater the surrounding water pressure, and the pressure that deep-sea fish can withstand is very large, while the hairtail fish can also withstand a certain amount of water pressure, but it is obviously not as strong as the bearing capacity of deep-sea fish.

Of course, although hairtail fish is not a deep-sea fish, it is also relatively difficult and costly to breed it in captivity.