Sediment erosion,
deposition and movement occur naturally in all aquatic systems (Waters, 1995).
Anthropogenic activities such as agriculture, forestry, mining, and urbandevelopment have accelerated the rate of this process, and sediment is
recognized globally as a major pollutant to surface waters (Waters, 1995).
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| Brook Trout |
Excessive sediment in
surface waters has a broad range of adverse effect on biotic communities,
including reducing fish diversity and lowering the biomass of aquatic species
(Waters, 1995). In spite of these broad-scale effects, most of the concern
surrounding fine sediment has focused on the effects of excess sediment on
fishes, particularly through the deterioration of spawning habitat, and
sedimentation has been identified as a potential factor limiting fish
reproduction and recruitment in streams (Lisle and Lewis, 1992).
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