Biomonitoring of fish communities, using the Index of Biotic Integrity (IBI) in Rabbit Creek-Cat Creek Watershed, Summer 1992
The Index of Biotic Integrity (IBI) is a method for evaluating the health of water bodies and watersheds by analyzing sample catches of fishes. Sites are scored on a numerical scale of 12--60 and on that basis assigned to a ``bioclass`` ranging from ``very poor`` to ``excellent.`` Overall, the major causes of depressed IBI scores in the Rabbit Creek watershed would appear to be: Organic pollution, mostly from livestock, but also from agricultural runoff and possible septic tank failures; sedimentation, principally from stream bank damage by cattle, also possibly from agriculture and construction; toxic pollution from agrochemicals applied to Holly Springs Golf course and agricultural fields` and Warming of water and evaporation loss due to elimination of shade on stream banks and construction of ponds.
- Research Organization:
- Tennessee Valley Authority, Chattanooga, TN (United States)
- Sponsoring Organization:
- Tennessee Valley Authority, Knoxville, TN (United States)
- OSTI ID:
- 10183541
- Report Number(s):
- TVA/WM--93/22; ON: DE93040577
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
540320
540350
AQUATIC ECOSYSTEMS
BIOLOGICAL INDICATORS
CHEMICALS MONITORING AND TRANSPORT
EVAPORATION
FISHES
HERBICIDES
MONITORING
NORTH CAROLINA
ORGANIC COMPOUNDS
PESTICIDES
POPULATIONS
SEDIMENTATION
SITE RESOURCE AND USE STUDIES
STREAMS
TENNESSEE VALLEY AUTHORITY
TOXICITY
WATER POLLUTION
WATER QUALITY
WATERSHEDS