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The amount of connected impervious surfaces shows a strong correlation with overall fish community health, as measured using the Index of Biotic Integrity (IBI; Karr, 1981; Wang et al.
To investigate the relationship between local land use and fish communities in headwater streams, we analyzed the relationship between sub-watershed land use and two measures of stream quality, the Index of Biotic Integrity (IBI) and the Index of Well-Being (IWB) at 10 sites along 5 first- and second-order streams in the Chestatee River watershed.
Index of Biotic Integrity scores were highest at the larger stream sites, ranging from "very good" to "excellent.
Also, an ichthyological study conducted by Kelly (1995) found that these two streams had the highest Index of Biotic Integrity (IBI) scores of the ten study streams in the Davy Crockett National Forest.
Comparison of transparency tube data to the Index of Biotic Integrity (IBI) as measured by the Ohio Environmental Protection Agency shows a strong correlation.
Keywords: Biotic integrity, biological assessment, probabilistic design, Index of Biotic Integrity (IBI) ********** The mandate of water quality monitoring agencies is to assess the condition of the waters of the United States and to report on their status.
Fish assemblage data were collected using daytime electrofishing during 1993-2001 from 275 river reaches found throughout the Interior River Lowland and Eastern Corn Belt Plain ecoregions to construct, test, and apply an index of biotic integrity (IBI).
A regression analysis was also conducted between the index of biotic integrity and qualitative habitat evaluation index.