Encyclopedia of Environmental Science and Engineering, Volume I and II

LIMNOLOGY 609

Marginal zone Littoral zone

Littoral

Pelagic zone zone

Profundal zone

Pelagic zone (open water) Benthic zone

FIGURE 1 The location and nature of typical lake communities, habitats, and organisms.

In addition to the lake’s watershed, all of these components are part of the lake ecosystem.

(U.S. EPA, 1990)

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