1. STREAM MACROINVERTEBRATES

2. Biotic Indicators Why are they Important? Easy to find and collect Easy to find and collect Live in water most of their life Live in water most of their life Stay in areas suitable for their survival Stay in areas suitable for their survival Easy to identify Easy to identify Differ in tolerance (Types and Amount of Pollution) Differ in tolerance (Types and Amount of Pollution)

3. 3 Main Types of Insects Class I- Pollution Sensitive Class I- Pollution Sensitive found in good quality water examples: caddisfly found in good quality water examples: caddisfly mayfly mayfly dobsonfly dobsonfly water penny water penny

4. 3 Main Types of Insects Class II- Moderate Pollution Tolerance, found in good or fair quality waters Class II- Moderate Pollution Tolerance, found in good or fair quality waters examples: damselfly examples: damselfly scud scud crayfish crayfish crane fly crane fly

5. 3 Main Types of Insects Class III- Pollution Tolerant, found in all types of water Class III- Pollution Tolerant, found in all types of water examples: black fly examples: black fly leeches leeches aquatic worms aquatic worms pouch snails pouch snails

6. Pollution Sensitive Macroinvertebrates Class I Insects

7. Order: Trichoptera Caddisflies

8. Fingernet Caddis Free living Caddis

9. Order: Trichoptera Caddisflies Net-spinning Caddisfly

10. Order: Trichoptera Caddisflies Adults

11. Order Ephemeroptera Mayflies Nymph Adult

12. Order: Megaloptera Dobsonflies/Alderflies Dobsonfly (Hellgrammite)

13. Order: Megaloptera Dobsonflies/Alderflies Alderfly

14. Order: Megaloptera Dobsonflies/Alderflies Dobsonfly Adult Alderfly Adult

15. Order: Plecoptera Stoneflies Nymphs Adult

16. Order: Coleoptera Water Penny

17. Order: Coleoptera Riffle Beetle Larva Adult

18. Class: Gastropoda Gilled Snails

19. Moderate Pollution Tolerant Macroinvertebrates Class II Insects

20. Order: Odonata Dragonfly Nymph

21. Order: Odonata Damselfly

22. Order: Odonata Dragonfly and Damselfly Dragonfly AdultDamselfly Adult

23. Order: Isopoda Sowbug

24. Order: Diptera Crane fly Larva Adult

25. Order: Amphipoda Scud

26. Order: Hemiptera Water Boatman

27. Order: Hemiptera Backswimmer

28. Order: Hemiptera Water Strider

29. Order: Hemiptera Water Scorpion

30. Order: Coleoptera Whirligig beetle Larva

31. Order: Coleoptera Whirligig beetle Adult

32. Order: Coleoptera Water Scavenger Beetle Adult

33. Order: Coleoptera Giant Water Beetle Adult

34. Order: Coleoptera Predacious Diving Beetle Adult Larva

35. Order: Decapoda Crayfish

36. Pollution Tolerant Macroinvertebrates Class III Insects

37. Order: Diptera Black Fly Adult Larva

38. Class: Hirudinea Leeches

39. Phylum: Annelida Aquatic Worms Oligochaete

40. Phylum: Platyhelminthes Planaria

41. Class: Gastropoda Pouch (Pond) Snails

42. Order: Chironomidae Midges

43. Order: Chironomidae True Midges (non-biting)

44. Order: Chironomidae Biting Midge

45. Class: Gastropoda Orb Snail

46. Order: Pelecypoda Clams Corbicula Fingernail clam