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 An estuary is a
place where
the freshwater
from the river
mixes with the
salt- water
from the sea.
 Biotic factors are the
living components in
an ecosystem. These
include all the plants,
animals, and
microorganisms found
in estuaries such as
mangrove trees,
migratory birds, and
small fishes.
 Abiotic factors, on
the other hand, are
non-living
components in the
ecosystem. These are
the factors that affect
organisms in
estuaries. These
include waves,
salinity,
temperature,
amount of sunlight,
and type of soil
 Waves refer to the movement of the surface of the
water. These are strong forces that organisms must
learn to live with. An example of these organisms
is the kelp, a kind of algae, which has strong root-
like structures that attach themselves to rocks to
keep it from being carried away by the waves.
 Salinity refers to the amount of salt in water. The
combination of seawater and freshwater in
estuaries is called brackish water. Mangroves and
blue crabs have adjusted well to the constantly
changing salinity of water due to the nonstop flow
of freshwater and saltwater through the estuary.
 Temperature refers to the level of hotness and coldness of
the water. Temperature differs because of the tides and the
amount of sunlight. Some organisms use plants like
mangroves to keep themselves concealed from direct
sunlight or away from the coldness of the water.
 Since estuaries are shallow as compared to the seas, they are
conducive for photosynthesis to take place. Algae,
seaweeds, sea grasses, and other marine plants depend on
the amount of sunlight that they receive in the estuaries.
 The type of soil varies in the estuaries depending on the
strength of waves and the kinds of rocks present in the area.
Some areas are full of rocks, sand, pebbles, or clay. The
topsoil layer found in an estuary is composed mostly of peat
or salt crust. Salt can be found within the soil which can be
acidic, posing problems to the survival of plant life.
 Intertidal zones are areas that are
constantly exposed to the changing tides.
They provide homes to many kinds of
plants and animals. The daily changes in
the tides play a major role in the life of
living things in this area. The intertidal
zone, which is also known as the
foreshore or seashore, is the area that is
above water level at low tide and
underwater at high tide.
 Coral reefs provide
shelter to thousands
of fish. The corals
themselves are
animals that feed on
plankton. These
corals form reefs that
protect the coast from
strong waves and
currents.
 Salt marshes are areas
that are filled with
seawater during high
tides and drained
during low tides.
Organisms found in
salt marshes are clams,
mussels, oysters, crabs,
snails, and shrimps.
Plants found in salt
marshes are sea grasses
and other plants that
are tolerant of
saltwater.
 Mud flats or tidal
flats are areas where
mud from the seas or
rivers is deposited.
They are usually the
areas for migratory
birds, crabs, sand
dollars, mussels,
clams, mollusks,
shellfish, and some
fish. Algae, like sea
lettuce, provide food
for the herbivores in
this area.
 Rocky shores are areas
where solid rocks are
found. Animals found
in the rocky shores are
plankton, brittle stars,
sea stars, hermit crab,
barnacles, limpets,
mollusks, periwinkle,
shore crabs, shrimp,
and prawns. Mangrove
forests are areas that
are filled with
mangrove trees. These
trees have adapted to
saltwater.
 Mangrove forests are breeding
grounds for different kinds of fish and
shellfish.
1. Conserve water in your home
2. Dispose of chemicals properly.
3. Repair any automotive oil leaks as
quickly as possible.
4. Commit to walk, carpool, or bike
instead of driving.
5. Use non-toxic pesticides
 Don’t dump your waste overboard.
 Fish respectfully.
 Plant more native trees
 Participate in a shoreline cleanup or
habitat restoration project.
 Report any threats to estuaries that
you see.
 Pick up animal feces.
 Pump your septic system every three
years.

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Estuaries.pptx

  • 1.
  • 2.  An estuary is a place where the freshwater from the river mixes with the salt- water from the sea.
  • 3.  Biotic factors are the living components in an ecosystem. These include all the plants, animals, and microorganisms found in estuaries such as mangrove trees, migratory birds, and small fishes.
  • 4.  Abiotic factors, on the other hand, are non-living components in the ecosystem. These are the factors that affect organisms in estuaries. These include waves, salinity, temperature, amount of sunlight, and type of soil
  • 5.  Waves refer to the movement of the surface of the water. These are strong forces that organisms must learn to live with. An example of these organisms is the kelp, a kind of algae, which has strong root- like structures that attach themselves to rocks to keep it from being carried away by the waves.  Salinity refers to the amount of salt in water. The combination of seawater and freshwater in estuaries is called brackish water. Mangroves and blue crabs have adjusted well to the constantly changing salinity of water due to the nonstop flow of freshwater and saltwater through the estuary.
  • 6.  Temperature refers to the level of hotness and coldness of the water. Temperature differs because of the tides and the amount of sunlight. Some organisms use plants like mangroves to keep themselves concealed from direct sunlight or away from the coldness of the water.  Since estuaries are shallow as compared to the seas, they are conducive for photosynthesis to take place. Algae, seaweeds, sea grasses, and other marine plants depend on the amount of sunlight that they receive in the estuaries.  The type of soil varies in the estuaries depending on the strength of waves and the kinds of rocks present in the area. Some areas are full of rocks, sand, pebbles, or clay. The topsoil layer found in an estuary is composed mostly of peat or salt crust. Salt can be found within the soil which can be acidic, posing problems to the survival of plant life.
  • 7.  Intertidal zones are areas that are constantly exposed to the changing tides. They provide homes to many kinds of plants and animals. The daily changes in the tides play a major role in the life of living things in this area. The intertidal zone, which is also known as the foreshore or seashore, is the area that is above water level at low tide and underwater at high tide.
  • 8.  Coral reefs provide shelter to thousands of fish. The corals themselves are animals that feed on plankton. These corals form reefs that protect the coast from strong waves and currents.
  • 9.  Salt marshes are areas that are filled with seawater during high tides and drained during low tides. Organisms found in salt marshes are clams, mussels, oysters, crabs, snails, and shrimps. Plants found in salt marshes are sea grasses and other plants that are tolerant of saltwater.
  • 10.  Mud flats or tidal flats are areas where mud from the seas or rivers is deposited. They are usually the areas for migratory birds, crabs, sand dollars, mussels, clams, mollusks, shellfish, and some fish. Algae, like sea lettuce, provide food for the herbivores in this area.
  • 11.  Rocky shores are areas where solid rocks are found. Animals found in the rocky shores are plankton, brittle stars, sea stars, hermit crab, barnacles, limpets, mollusks, periwinkle, shore crabs, shrimp, and prawns. Mangrove forests are areas that are filled with mangrove trees. These trees have adapted to saltwater.
  • 12.  Mangrove forests are breeding grounds for different kinds of fish and shellfish.
  • 13. 1. Conserve water in your home 2. Dispose of chemicals properly. 3. Repair any automotive oil leaks as quickly as possible. 4. Commit to walk, carpool, or bike instead of driving. 5. Use non-toxic pesticides
  • 14.  Don’t dump your waste overboard.  Fish respectfully.  Plant more native trees  Participate in a shoreline cleanup or habitat restoration project.  Report any threats to estuaries that you see.  Pick up animal feces.  Pump your septic system every three years.