deep sea is the part of the ocean below a depth of 200 metres
that is in permanent darkness. The abyss, with an average
depth of 3.8 kilometres, is the most common environment on
sea floor is covered by vast plains of soft sediments made
up of fine detritus and particles that drift down from the
surface. The water is cold because it comes from the polar
regions, and its weight puts considerable pressure on life
at the bottom of the sea.
the deep sea floor has no plants, our studies show that it
is extremely diverse in animal species, often having many
more than shallow water. For example, a shallow water area
may have only 10 - 20 species of isopod crustaceans, while
some deep sea habitats have more than 100 species.
sea animals are similar worldwide. However, most species are
highly endemic and limited to small parts of large, seemingly
continuous ocean basins.
most of us don't have much to do with the deep sea, we often
mistreat it. Damage and changes to this environment may last
for decades, centuries or even longer. Some things that might
damage the deep sea environment are: human rubbish from passing
ships, deep ocean mining and drilling, deep sea disposal of
liquified carbon dioxide extracted from power plants and global
Differnt kind of deep