Water is a vital part of our lives. We drink it.
We wash with it. We use water for irrigating crops, for transporting
goods, as well as, for generating energy at hydroelectric dams
and nuclear power plants. We treasure our water for recreation
like swimming, boating and fishing.
Pennsylvania is the habitat of thousands of mammals,
amphibians, reptiles, birds, fish, flowers, trees and invertebrates
all of whom depend on the water as much as people do.
Lentic Ecosystem or Lotic
Ecologists divide continental
waters into two categories Lentic and Lotic.
Ecosystem has flowing waters. Examples include: creeks,
runs, rivers, springs,
brooks and channels.
Ecosystem has still waters. Examples include: ponds,
ditches, reservoirs, seeps,
lakes, and vernal
/ ephemeral pools.
Explore the waters of Pennsylvania. Identify
on each web page whether it is a Lotic or Lentic ecosystem. Pdf answer form | Digital Answer form
Click here to Begin
There are over 80,000 miles of lakes and streams
in Pennsylvania. From the Allegheny, Monongahela, and Ohio Rivers
in the western part of the Commonwealth to the Susuquehanna River in Central PA and on to the Delaware River which marks Pennsylvania's
eastern border, we are blessed with 45,000 miles of moving water.
Pennsylvania also has many lakes, ponds, reservoirs and other
still water resources.
More than 10,700 miles of rivers and streams in Pennsylvania have been identified as impaired for aquatic life by pollutants from abandoned mines, agriculture, sewers and urban runoff. 2005 Carnegie Mellon University study.
water is polluted by many sources. Pollution is a legacy of run off from coal mining. It is
an unintended byproduct of agriculture. Poorly planned development stresses sewage treatment facilities that can overflow into the rivers. Pollution is also the result of thoughtless
trash management and periodic flooding.