Brook trout can be found in three types of aquatic environments with very specific habitat requirements in each: rivers, lakes, and marine areas. Freshwater populations occur in clear, cool, well-oxygenated streams and lakes with water temperatures that remain below 18.8 C and where there is little to no siltation. Stream dwelling brook trout require habitat that consists of resting areas in pools, feeding sites near riffles or swiftly flowing water, and escape cover that is normally found along undercut banks, under woody debris, trees or large rock ledges. Brook trout that reside in marine environments migrate there from freshwater tributaries and tend to stay close to river mouths.
A considerable inland body of standing water.
The land near a shore.
Of or relating to the sea.
A natural body of running water.
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