Macroinvertebrate Characteristics of Lower Wheeling Creek Sites
Site A B C D E F
Total number of organisms number per square meter 58,859 74,567 103,396 88,808 26,495 17,799
Taxa richness number of taxa per sample 16 26 21 15 10 9
Mayflies (Ephemeroptera) number per square meter 542 1,203 3,669 193 33 28
Stoneflies (Plecoptera) number per square meter 165 443 236 189 28 66
Caddisflies (Trichoptera) number per square meter 203 349 184 85 61 113
Beetles (Coleoptera) number per square meter 901 575 283 556 99 42
Midges (Diptera: Chironomidae) number per square meter 26,457 31,932 43,969 39,157 12,876 8,142
Other true flies (Diptera) number per square meter 19 38 66 19 33 38
Dobson and Alderflies (Megaloptera) number per square meter 0 0 5 5 0 0
Crustaceans number per square meter 0 9 5 0 0 9
Annelid worms number per square meter 170 193 462 217 24 344
Mollusks number per square meter 9 42 585 24 28 5
EPT index macroinvertebate quality (Ephem. + Plecop. + Trichop) /
Diptera: Chironomidae
0.034 0.062 0.093 0.012 0.010 0.025
Percent EPT index macroinvertebrate quality (Ephem. + Plecop. + Trichop) /
Total number of organisms
0.015 0.027 0.040 0.005 0.005 0.012

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