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Section 4: Macroinvertebrate Identification Data


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Section 4: Macroinvertebrate Identification Data Identification Date ______________________ Identification Approved by: ____________
Stream Name ________________________________ Benthos Identifier(s) ___________________________________________________________

Site number _________________________________ _____________________________________________________________________________

Location _________________________________________________________________________________________________________________________

What types of habitats and substrates were invertebrates collected from?: (Circle all that apply)
Riffles Runs Pools Eddies Leaf Pack Aquatic Plants Undercut Banks Sediments Overhanging Vegetation

Snags/Submerged Logs/Roots Other (describe): ___________________________________________________



Use these letter codes to record the numbers of organisms in each group collected from each stream reach:

R = rare = 1 - 10 identified in the group C = common = 11 or more identified in the group
Group 1 Group 2 Group 3

Sensitive Somewhat Sensitive Tolerant
______ Caddisfly larvae (Trichoptera) ______ Alderfly larvae (Megaloptera) ______ Aquatic Worms (Oligochaeta)

(WITH CASES) ______ Beetle adults (Coleoptera) ______ Leeches (Hirudina)

______ Hellgrammites (Megaloptera) ______ Beetle larvae (Coleoptera) ______ Midge larvae (Diptera)

______ Mayfly nymphs (Ephemeroptera) ______ Blackfly larvae (Diptera) ______ Pouch Snails (Gastropoda)

______ Gilled Snails (Gastropoda) ______ Clams (Pelecypoda) ______ True bugs (Hemiptera)

______ Stonefly nymphs (Plecoptera) ______ Cranefly larvae (Diptera) ______ Other Diptera

______ Water penny (Coleoptera) ______ Crayfish (Decapoda)

______ Water snipe fly (Diptera) ______ Damselfly nymphs (Odonata)

______ Dragonfly nymphs (Odonata)

______ Net-Spinning Caddisfly larvae (Hydropsychidae) (NO CASES)

______ Scuds (Amphipoda)

______ Sowbugs (Isopoda)

Group 1 Score Group 2 Score Group 3 Score

______ # of Rs x 5.0 = ______ ______ # of Rs x 3.0 = ______ ______ # of Rs x 1.1 = ______



______ # of Cs x 5.3 = ______ ______ # of Cs x 3.2 = ______ ______ # of Cs x 1.0 = ______
Group 1 total = _______ Group 2 total = _______ Group 3 total = _______
Total Stream Quality Score (sum of scores for all Groups) = ______  Excellent (>48)  Good (34 - 48)  Fair (19 – 33.9)  Poor (<19)

10/6/08


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