More bonds, rivers, bogs, marshes, estuaries and mangrove

More than two thirds of earth’s surface is
covered with water. The earth’s five oceans and its seas, rivers that comes from rainfall, from
snow and ice melting.not forgetting the
lakes and ground water even swamps. They are all connected to present the
aquatic area which is a home of huge number of living things.

The water is very effective and important
molecule for all organism and it is essential part in life. Most of the
organisms cannot survive without the presence of water. Although, they don’t live inside it such as
human and plants and different organisms, they have provided with food from
inside it, also passengers and goods are often carried by sea.

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biodiversity of aquatic ecosystems is one of Earth’s biggest treasures. When
biodiversity word comes on people’s minds, first thing they think about is the
rainforests. The rainforests contain huge amounts of biodiversity, and more
species than we will probably ever be able to catalog. But have you ever
thought that similar biodiversity can be found in the oceans? For example,
coral reefs have been described as the rainforests of the sea because they are
home to a huge array of marine life. But coral reefs, like aquatic ecosystems,
are easily affected by outside factors.

factors are ingredients of a natural environment that are not alive. In other
words, physical or chemical parts of the environment that affect the organisms
that are in that environment. For aquatic ecosystems, these factors include
light levels, water flow rate, temperature, dissolved oxygen, acidity (pH),
salinity and depth.

An aquatic ecosystem
is a community of living organisms socializing with each other and their surroundings
under the water. There are two main kinds of
aquatic ecosystems called saltwater ecosystem and freshwater

Wet lands are areas that are permantly or regularly under
fresh or salty water, such as bonds, rivers, bogs, marshes, estuaries and
mangrove swamps.

While the open
ocean starts at the edge of continental shelf where the seabed plunges suddenly
down the continental slope to greater depths. Its divided into three zones: the
benthic zone is at the bottom, above that the demersal zone, and the pelagic
zone is uppermost.

Ocean currents
are driven by a combination of winds and the earth’s rotation, and they are regulating
permanent or continuous movement of ocean’s
water. The motion of the ocean water is
promoted by forces acting on the water counting the breaking waves, salinity
differences, Coriolis effects, the wind and temperatures

While ocean surface
currents are like large rivers many kilometers wide, on average 100m deep and flowing
at 15 km per hour. also it affect only the top 100m so the ocean deep current
involve the whole ocean

 However, the major currents are spilt on
either side of equator into huge rings called gyres.

This essay is
concentrating on comparing between fresh and salt water and the features that
include each ecosystem. we will discuss a few elements that impact aquatic
ecosystems. concentrated on the abiotic factors and how they affect aquatic
life. These are the factors that cause a deep ocean to be totally different
from a shallow lake.


Plus on that
it will include the types of Ocean currents and their effects in order to work
to neutralize the temperature difference between different areas in the oceans
such the winds do on land. As a body of water warms and cools slowly it’s an
excellent, and fairly stable, transmitter of heat and cold which feeds into the
weather system.