Table 4-1 Example Assessment and Measurement Endpoints Applicable to Ecological Restoration of Streams
Stream Ecosystem Assessment Measurement
Componant Endpoint Endpoint
Physical Habitat Increase habitat Habitat Suitability
suitability for Index for rainbow
rainbow trout by 50% trout
Hydrology Increase minimum Stream Flow
stream flow to 10 cfs
Population Establish trout Kg trout/ha
population of 50 kg/ha
Ammonia Eliminate exceedances Concentration of
of the water quality ammonia
standard for ammonia
Ambient Toxicity Eliminate acute and 96-h LC50s and
chronic ambient 7-day IC25s of
toxicity ambient stream
water to fathead
minnows and the
benthic
invertebrate,
Hyallela azteca.
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