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Bay Lakes

Bay lakes are Carolina Bays that are filled with water all year.  They are home to aquatic animals such as freshwater fish.  They are also popular locations for boating and fishing. 

The edges of natural Bay Lakes are covered with marsh grasses and aquatic plants like water lilies.

Sparse trees and grasses grow on the sand rims around Bay Lakes.  Beyond the sand rim, the ground drops off into the bowl-shaped Bay.  The Bay itself is filled with dense shrubs.

 

 

Bay Lakes are Carolina Bays that are large enough to hold water all year long.

Most Bay lakes are filled with peat, or partially broken-down plant matter.  Since they are covered with water all of the time, there is not much oxygen in the sediment at the bottom of the lake.  Oxygen is needed to break down dead plant matter.  The process of breaking down dead plant and animal matter is called decomposition.  Without oxygen, dead plant material decompose very slowly.  Peat builds up at the bottom of the lake. 

Water in peat-filled bay lakes is very acidic.  It contains very few plant nutrients.  Like blackwater rivers, the broken-down plant matter stains the water so that it looks like tea. 

Peat filled Bay lakes are usually surrounded by a ring of pine trees and shrubs just inside the sand rim.  These plants can grow in areas where the peat is less than 5 feet deep.  As the water becomes deeper, the plant community changes.  FIrst, the shrub thicket turns into a swamp.  Then, the swamp turns into a marsh.  Finally, the marsh is replaced by open water.


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