To better judge the overall effect of golf course runoff of our selected rivers, we chose to examine the distribution of benthic macroinvertebrates (Zweig 2001). The benthic macroinvertebrate orders, Ephemeroptera, Plecoptera, and Trichoptera (EPT) are associated with high water quality in streams and rivers, and because they have specific life cycle requirements. They are important indicators in assessing the biological integrity and overall ecological health of the area (Rosenberg and Resh 1993).The EPT index is the number of different morphotypes observed in the orders Ephemeroptera, Plecoptera and Trichoptera as a proportion of all invertebrate morphotypes present. These orders contain species that are hypersensitive to pollutants; hence an impacted stream should contain fewer of these taxa than a pristine stream (Kitchin 1995).
To better judge the overall effect of golf course runoff of our selected rivers, we chose to examine the distribution of benthic macroinvertebrates (Zweig 2001). The benthic macroinvertebrate orders, Ephemeroptera, Plecoptera, and Trichoptera (EPT) are associated with high water quality in streams and rivers, and because they have specific life cycle requirements. They are important indicators in assessing the biological integrity and overall ecological health of the area (Rosenberg and Resh 1993).The EPT index is the number of different morphotypes observed in the orders Ephemeroptera, Plecoptera and Trichoptera as a proportion of all invertebrate morphotypes present. These orders contain species that are hypersensitive to pollutants; hence an impacted stream should contain fewer of these taxa than a pristine stream (Kitchin 1995).
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