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close this bookBasic Concepts in Environment, Agriculture and Natural Resources Management: An Information Kit (IIRR, 1993, 151 p.)
close this folderFreshwater and marine ecosystems
View the documentFreshwater ecosystems
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View the documentMangrove ecosystems
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View the documentDiversity of coastal and marine resources
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View the documentRed tide (Dynamics and public health aspects)

Freshwater ecosystems

Freshwater ecosystems

1. Spring/brooks - 2. Ponds/Dams



1. Spring/Brooks

Upwelling and flowing groundwater that usually drains into a catchement area called brooks, e. g., Los Bahot springs; Tiwi Hot Springs; Hidden Valley (Alaminos, Laguna); natural springs

2. Ponds/Dams/Reservoirs

A body of water naturally/artificially impounded for sustainable domestic/fishery, agricultural, industrial uses, e.g.,Angat Dam; Ambuklao Dam and Sta. Mesa Filtering Plant; other fish ponds.

Statistics: 59 dams and reservoirs with a total of about 33,000 hectares.


5. Lakes

Confined static bodies of water where streams and river flow.

Example: Laguna Lake; Taal Lake; Lake Naujan.

Statistics: 70 lakes with a total of 200,000 hectares.

6. Swamplands

Areas of shallow and stagnant water in which conditions are domminated by closely-packed vegetation, often emergent such as trees, palm and weeds.

Example: Candaba Swamp