Patcong's Macroinvertebrate Counts (3) Group III20002008 Aquatic Worms610 Midge Fly Larva50 Blackfly Larva31 Leeches00 Pouch/Pond Snails00 Other Snails00 Index Value-2 Total Index Value- 22 #'s greater than 0 x 1 = 3 All Index Values added together= 32 #'s greater than 0 x 1 = 2 All Index Values added together to get 22.
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