Shape of a River - Geomorphology
Habitat (pg 1 of 2)
The free play of a stream's hydrodynamic forces
creates a rich diversity of habitats for aquatic
life. This diversity results from variation in
stream depth, width, water velocity, and substrate
throughout the channel, (the antithesis of a
channelized ditch). Diverse habitats support a high
degree of biological diversity.
The formation of meanders causes scouring and
deepening of the channel along the outside bend.
These deep main-channel locations, where fine
sediment has been cleared away, are important
holding and feeding locations for many species of
fish and invertebrates.
The creation of eddies and deposition of fine
sediment on point bars on the inside of river bends
create slack-water habitat used by many