Freshwater is defined as water with low salt concentration, usually less than 1%. It occurs naturally inland away from seas and oceans. There are different types of freshwater regions including ponds and lakes, streams and rivers, and wetlands. Rivers and streams are running freshwater that can last thousands of years, with higher oxygen levels. Lakes and ponds are standing freshwater that typically only last hundreds to thousands of years with lower oxygen at depth. Freshwater habitats in the Philippines include rivers like the Puerto Princesa Underground River and Enchanted River, lakes such as those in Mt. Pinatubo and Mt. Taal craters, and endemic species like the Philippine freshwater crocodile, purple river crab

1. PHILLIPPINE FRESH
WATER

2. WHAT IS FRESH WATER?
 Freshwater is salt free water or it is not sea water. It occurs naturally on the
earth's surface.
 There are different types of freshwater regions: ponds and lakes, streams and
rivers, and wetlands.
 Freshwater is found inland and away from the sea.
 Freshwater is defined as having a low salt concentration—usually less than
1%.

4.  Running water
 Examples: Rivers, streams, creeks
 Fresh water
 Can last many thousands of years
 Higher percentage of dissolved oxygen in water, due to water flowing
 Animals must be adapted to survive in high oxygen content
 Lower salt content
 Fed by melting snow and rain
 Animals must prevent excess water in bodies.
 Fish must be able to survive in flowing water.

5. PUERTO PRINCESA UNDERGROUND RIVER ENCHANTED RIVER, SURIGAO
DEL SUR
RIVERS

6. PHILIPPINE FRESHWATER CROCODILE

7. PHILLIPPNE RIVER PURPLE CRAB PHILLIPPINE TURTLE

8.  Standing water
 Examples: Lakes, ponds, swamps
 Fresh water
 Usually only last from a few hundred to a few thousand years
 Lower percentage of dissolved oxygen, especially in deeper water
 Higher salt content as water evaporates over time
 Animals must prevent excess water in bodies.

9. CRATER LAKE OF MT.
PINATUBO
CRATER LAKE OF MT. TAAL
LAKES

10. TILAPIA BANGUS