Presentation (4).pdf aquatic ecosystems ppt

Aquatic ecosystems

1. AQUATIC
ECOSYSTEM

2. ■An ecosystem termed is a natural unit of living and
non-living parts that interact to produced a stable
system. Furthermore, habitat is an important part of
such an ecosystem. Primarily ecosystem have been
two domains such as terrestrial ecosystem and
aquatic ecosystem.
■Water certainly supports many lives. Moreover the
organisms which survive in Water are aquatic
organisms. Furthermore they this depend on water for
their food, shelter, reproduction and many other life
activities

4. Definition of Aquatic Ecosystem
■First of all, an ecosystem is a community of living
organisms and their physical and chemical
environment, linked with the help of flows of energy
and nutrients. Furthermore, ecosystem function as an
ecological unit and therefore can be defined at a variety
of scales.
■Most noteworthy, the aquatic ecosystem includes
freshwater habitats such as lakes, ponds, rivers,
oceans and stream, wetlands, swamp etc.. Whereas
marine habitats include oceans, intertidal zone, reefs,
seabed and so on. Furthermore, the aquatic ecosystem
is the habitat for water dependent species like animals,
plants and microbes.

5. ■Living organisms in a particular environment are
certainly affected by characteristics such as nutrient
concentration, temperature, water, flow. Furthermore
only organisms can survive which are able to live in
the condition of a particular habitat &use the
available resources.
■Interaction between living organisms also affect the
type of organisms which can be found in an aquatic
ecosystem. The basic components of aquatic
ecosystem & the related interaction can lead to
better management of human impacts on these
ecosystem.

6. ■Freshwater Ecosystem:There cover only a small
portion of the earth which is nearly 0.8 percent.
Freshwater means lakes, ponds, rivers, streams etc.
■Lotic Ecosystem : These mainly refers to the rapidly
flowing waters that move in unidirectional way
including the rivers and streams. Furthermore these
environment have numerous species such as
beetles, mayflies, stoneflies and serval species of
fishes including trouteel.
■Lentic Ecosystem: They include all standing water
habitats. Moreover, lakes and ponds are the
primary examples of the lentic Ecosystem.

7. ■Wetlands: Wetlands are marshy areas and are
sometimes covered in water which has a wide
variety of plants & animals. Swamps, marshes,
bogs, black spruce & water lilesare the main
examples in the plant species, The animal life
of this ecosystem consists of dragonflies,
damselflies & various birds & fishes.
■Marine Aquatic Ecosystem: The marine
ecosystem covers the largest surface on the
earth. Two-thirds of the earth is coverdby
water which constitutes oceans, seas,
intertidal zone, reefs etc. From of each life is
unquieand native to its habitat.

8. ■Ocean Ecosystem: Our earth is having five major
oceans. These oceans are more than five lakhs
aquatic species. Some species of this ecosystem
includes shellfish, shark , tube worms and crab are
small and large ocean .
■Coastal Ecosystem:these are the open systems of
land and water they joined together to form the
coastal Ecosystems. A wide variety of species of
aquatic plants and algae live at the bottom. The
diverse fauna consists of crabs, fish, insects and
lobsters snails .