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Title: Development of index of biotic integrity expectations for the ecoregions of Indiana. I. Central corn belt plain

Technical Report ·
OSTI ID:6677794

The Clean Water Act Amendments of 1987 mandate the development of biological criteria for evaluating the nation's surface waters. The requirements of Section 304(a) was implemented in Indiana to determine water resource degradation. A total of 197 headwater and wading stream sites were sampled in the Central Corn Belt Plain ecoregion in order to develop and calibrate an Index of Biotic Integrity for use in Indiana. Based on inherent variance within the ecoregion, sub-basins were established based on the concept of natural areas as recognized by Homoya et al. (1985). Site specific data; locality information; and species specific scoring criteria for tolerance classification, trophic guilds, and reproductive guilds are included in the appendix.

Research Organization:
Environmental Protection Agency, Chicago, IL (United States). Region V
OSTI ID:
6677794
Report Number(s):
PB-93-149383/XAB; EPA-905/9-91/025
Resource Relation:
Other Information: See also PB--89-138440, PB--85-184349, PB--92-203959 and PB--93-143683
Country of Publication:
United States
Language:
English