who lives on the ocean floor, it is known: fish, shellfish, marine worms, crustaceans and other fauna characteristic of shallow water.But living conditions at a depth much different from those of the continental shelf and upper layers of the ocean sequences.Therefore, the inhabitants of the depths to develop protective mechanisms by which their existence and possible.
The light of the solar spectrum penetrates the thickness of the ocean at different depths.Rays of red and orange light - no more than thirty meters to one hundred and eighty - yellow to three hundred twenty - green, up half a kilometer - blue.Although the most sensitive modern instruments recorded traces of sunlight to a depth of one and a half kilometers, we can say: five hundred meters below the ocean reigns pitch darkness.All those who live on the ocean floor below this mark, have adapted to the lack of light in different ways.Some have supersensitive eyes telescopic type, available devices able to capture a few rays of light.Or maybe even higher sensitivity and allows them to navigate where even the folds of human technology.Other animals of all abandoned and it is not bad at the same time feel.Some bottom dwellers have acquired the ability to emit light on their own.
characteristic feature of the ocean floor - poor food.Due to the low temperature (2-4 degrees above zero) where all processes are sluggish, so the inhabitants of the ocean depths is not characterized by high speed of movement or increased activity in getting food.Almost all the animals there are predators.Because of the small amount of food deep-sea fishes have acquired the ability to swallow creatures, is bigger than themselves.
carpets the ocean bottom is a thick layer of silt.In this regard, some of the deep-sea animals (for example, sea spiders) have long limbs, allowing them not to fall into the sediment.Since many fish migrate regularly from bottom to top and back, sometimes difficult to figure out where someone lives.At the bottom of the ocean great pressure, there is little light, the food, low temperatures.Therefore, some deep-sea species occasionally found in the upper layers of the water, becoming prey to fishermen and surprising them their unusual appearance.Thus, for example, are often caught in a net drop of fish having to "face" funny outgrowth resembling a hanging nose.
fish on the ocean floor often becomes the target species, but large specimens there for obvious reasons (lack of food) are rare.For example, coal fish.Although she lives at depths up to 2700 meters, it is still often in the stores.Different countries have different names for the fish.We have it - coal in Canada - black cod in the US - fish sable, Australia - oily fish.Among those who dwell on the ocean floor, the creature - a giant.The length of the largest specimens reached 120 centimeters.
life on the ocean floor is very poorly studied, and it is possible that we have a large outdoor.Periodically pops up information that the fishermen met in the middle of the ocean spaces unknown animal, and some even became the victim of a monster.Of course, most of these messages are rumors or common sea tales, but not all.One hundred years ago, hardly anyone from the serious scientists have believed that the coelacanth - a fish that appeared long before the dinosaurs, is our contemporary.However, later it was proved the existence of the African fishermen, scientists have submitted a live specimen.
