(par 4.2.4.2.1.1) Lake ecosystem (taken from wikipedia)
http://en.wikipedia.org/wiki/Lake_ecosystem From Wikipedia, the free encyclopedia A lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions.[1] Lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or…