Los Tres Ecosistemas

Matt Bartsch and Erick Gonzalez

Freshwater Ecosystem

Freshwater ecosystems can be classified as lakes, ponds, streams, rivers, springs, and wetlands. Habitats can be classified by different factors, including temperature, light penetration, and vegetation. Limnology, a study of freshwater ecosystems, covers the biological, physical, chemical, and geological attributes of all inland waters.


Brackish Water Ecosystem

The salinity of brackish water is anywhere between .05% and 3%. A brackish water ecosystem occurs when a freshwater ecosystem meets a sea, and the two bodies of water are mixed together. The Baltic Sea is the largest body of brackish water in the world. It was once flooded by the North Sea, giving it too much fresh water to be salt water, but just enough to be a brackish body of water.

Saltwater Ecosystem

According to the E.P.A. (Environmental Protection Agency) saltwater ecosystems make up more than 70% of all aquatic ecosystems on the planet. All the oceans in the world are made up of saltwater, and the majority of seas are as well. The salinity of seawater is usually around 3.5%, with the exception of the Dead Sea, which is about 33.7% salinity.