Which animals live on the seabed?

Unlike general beliefs, most of the seabed, known as the "open ocean", is not actually an animal habitat, just where they go somewhere else on their way. In most of the world, the ocean bottom is very deep and average a depth of 3,790 meters (12,430 ft). Almost half of the world's sea floors are over 3,000 meters deep (9,800 ft). Overall, about 71% of the world's oceans, with shallow waters such as continental shelves, make up 29%. There is a place on continental shelves where the greatest biodiversity can be found. Many plants and animals live here: Kelp forests, huge amounts of algae, shark, fish, crustaceans, brachiopods, bivalves, mushrooms, cnidarians (jelly and relatives), echinoderma (starfish, sea hedgehogs and relatives). Of the 38 animals, everything except one - Velvet Worms - have a sea version. Therefore, the field of marine biology is so huge.

Although continental shelves are technically "seabed", sometimes when the word is used, it refers specifically to the deep sea. The deep sea is mostly lifeless, because the afotic (no light) of the ocean zone begins at a depth of 0.9 km (15,000 feet) and continues to the bottom. Since areas without light cannot support photosynthetic plants or bacteria, the ecosystem in the Afotic zone depends mainly on the organic detritus that falls from above. Many animals found in the Afotic zone are able to produce their own light, called bioluminescence.

all the time at the bottom of the deep sea - an area that humanity has explored less than 1% - the main ecosystems are built around Seamounts, where the animals are gathering and the void of a rupture where geological activity can provide heat and chemicals to support the mini -ecosystem. Two famous ecosystems of the seabed are built on hydrothermal ventilation holes and cold promotion. None of these ecosystems fromIt is in the sun for energy. The producers of these ecosystems are chemotrophic bacteria that oxidize inorganic energy chemicals.

The most abundant animal on the seabed are probably nematodes, also known as flat worms. These average sizes of about 1 mm and can be found in the deepest trenches in the ocean, where there is a pressure of over a thousand atmosphere. Echinodermms (sea stars and relatives) can also be found in the deep ocean, as well as fish such as soles and platforms. The shrimp was reportedly present at the bottom of the Marianas ditch, the deepest ocean ditch on the planet. The bizarre creature found on the bottom of the ocean is a giant isopod, which has a look similar to a wooden refract, but can have the size of the foot.