Table 2 Macroinvertebrate metrics results calculated using data from the Procedure 51 (P 51) surveys in Indian Mill Creek (IMC), Michigan, USA (2017). EPT Ephemeroptera, Plecoptera, and Trichoptera macroinvertebrates; FBI Family Biotic Index; BC Brandywine Creek; WAD Walker Avenue Ditch
| Site | Mayfly richness | Caddisfly richness | EPT richness | % Mayfly |
% Caddisfly | % EPT | % Air breathers |
% Diptera | P 51 score | FBI | Total taxa richness | Shannon diversity | Pielou’s evenness |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IMC1 | 0 | 2 | 2 | 0 | 3 | 3 | 7 | 15 | −4 | 6.04 | 15 | 1.45 | 0.54 |
| IMC2 | 0 | 0 | 0 | 0 | 0 | 0 | 45 | 5 | −8 | 6.41 | 12 | 1.50 | 0.60 |
| IMC3 | 1 | 1 | 2 | 1 | 6 | 7 | 8 | 10 | −6 | 6.16 | 21 | 1.88 | 0.62 |
| IMC4 | 2 | 1 | 3 | 3 | 2 | 5 | 2 | 5 | −4 | 7.65 | 19 | 1.72 | 0.59 |
| IMC5 | 2 | 2 | 4 | 1 | 10 | 11 | 4 | 4 | −2 | 5.19 | 19 | 2.04 | 0.69 |
| IMC6 | 1 | 1 | 2 | 1 | 2 | 3 | 3 | 3 | −6 | 6.13 | 17 | 1.56 | 0.55 |
| IMC7 | 1 | 1 | 2 | 10 | 20 | 30 | 1 | 14 | −4 | 6.14 | 14 | 1.69 | 0.64 |
| BC | 1 | 1 | 2 | 4 | 1 | 4 | 78 | 10 | −3 | 5.81 | 17 | 1.32 | 0.47 |
| WAD | 1 | 0 | 1 | 1 | 0 | 1 | 68 | 55 | −5 | 7.61 | 19 | 1.80 | 0.61 |