Oddly enough, but there are fish that can do without water. From there, it enters through the canal into the swim bladder.
The bubble is arranged in cells with a large number of blood vessels. To some extent, it resembles a lung, because gas exchange takes place here.
Fish and drought
Why do fish need such difficulties? They are dictated by living conditions. Heavily overgrown ponds dry up, so the fish have to adapt.
When drought occurs, the fish hides in the sludge, the body is covered with mucus, which mixes with the sludge. It turns out that the fish is in a case with an opening at the mouth. In this case, the fish lives all the time until there is no rain. With the onset of the rainy season, the case softens, and the fish again lead an active lifestyle in their element.
Lamiaceous in Africa bites badly. Locals nicknamed him a crocodile. He has valuable meat.
Other representatives of this species make sounds similar to the meowing of a cat or the hiss of a snake, which serves as a signal to the natives revealing the location of the fish.
Slider perch (pineapple or slider fish)
In India there is a perch-slider, which can also be out of the water for a long time. When the house of this perch dries up, the fish burrow into the silt. If the pond does not fill up for a long time, then the perch crawls to look for another place to live.
The perch crawls on strong fins located on the chest, as well as on thorns on the gills.How does this fish breathe? Air enters the cavity near the gills and enters the blood from there.
Jumping fish (mud jumper)
In the tropics live fish that can do without water for quite some time. They themselves can go to land. This is a jumping fish (mud jumper). An interesting picture is revealed to the human eye at low tide: fish crawl, climb to the roots of individual trees, hunting for insects and their larvae.
The silver jumper, for example, has adapted to stay on land, which now needs to be periodically on the ground, otherwise it could die without atmospheric air.
Acne
Eel is also a hardy fish that can be without water for a certain time. He can also leave his pond and go in search of another pond. On dewy nights, this fish can go out for snails and insects into a nearby field or meadow. Breathing is provided through the skin.
Common loach
In small rivers and swamps the common loach lives. In such reservoirs, water is not sufficiently enriched with oxygen. The loach adapted, because in addition to gill breathing, he also has intestinal breathing.
Fish swallows atmospheric air, leaning out of the water, and passes it through the intestines. Numerous blood vessels are located in the intestinal walls; they are involved in gas exchange. When the loach is in water poor in oxygen, intestinal respiration is activated.
Some time may be without water and crucian carp. He digs deep into the silt and falls asleep, waiting for the rain to fill the pond. Sometimes it burrows quite deeply.
The world of nature is amazing and mysterious, how much interesting it is for a person!