science v

1. Sir Michael Angel S.
Grade V

2. Estuaries
Estuaries are areas near the sea
where the river and the sea meet.
The water in this environment is
brackish (a mixture of fresh
water and salt water).

3. Why are estuaries
important?
1. They serve as the habitat and
breeding or spawning ground of many
organisms such as birds, fish,
amphibians, insects, algae varieties,
and crustaceans.

4. Why are estuaries
important?
School of Fish
White Crane Making Nest Turtle Laying Eggs
Crocodilewith its Young MigratoryBirds

5. Why are estuaries
important?
2. Many people get their livelihood
in areas near estuaries.

6. Why are estuaries
important?
Tilapia Culture Prawn Culture Crab Farming
Fish Hatchery Crocodile Farm Bird Watching

7. Why are estuaries
important?
An ecosystem greatly benefits from the
preservation of estuarine habitats. Estuaries
are considered as “life support areas” of our
vast ecosystem. Saltwater Marshes and
Mangrove forests acts as natural filters.
Marsh grasses and peat filter pollutants,
organic matter and nutrients before the
water exits the sea.

8. Classification of
habitat
1. Salt Marshes
2. Mangrove Forest
3. Mudflat

9. Classification of
habitat
Salt Marsh Mangrove Forest
Mudflat

10. Common endangered biotic found
in the Philippine estuarine
environment
Rhizophora
(Bakauan)
Chinese Egret Asiatic Dowitcher
Eastern Curlew Black Tailed GodwitSandpiper