3. - Area that drains into a body of water - Provides habitat, drinking water, irrigation, etc - Water carries sediment, nutrients, chemicals, etc - Problems are often from upstream Includes: Rivers/streams, Lakes, Wetlands, Aquifers Divided into watersheds

6. Big Sioux Watershed

7. Missouri River Watershed

10. Missouri River Lake Oahe Lake Sharp Lake Francis Case Lewis and Clark Lake

13. Rivers and Streams “East Rivers” Big Sioux Vermilion James

17. “West Rivers” White Grand Cheyenne Moreau Bad

22. Run Riffle Pool Rivers and Streams - smooth flowing section of a river - rough part of river sometimes known as rapids - standing section of water usually at a bend in a river

23. Run

25. Riffle

26. Pool

28. Small streams Located in heavily wooded areas CPOM – Course Particulate Organic Matter –leaves, trees, etc –The “cracker” Bacteria –The “peanut butter” “Shredders” First Order Stream

33. Shredders – feed on leaf litter (cracker) –G–Get nutrients from bacterial film (peanut butter) Collectors –g–grab things from the water as it floats by Grazers –F–Feed on algae Predators –F–Feed on other invertebrates SPECIES Invertebrates

35. Birds SPECIES Vertebrates

36. Fish SPECIES Vertebrates

37. SPECIES Vertebrates

38. An area where sand and sediments have built up Usually located along river edges –Submerged –Above surface Valuable nesting area Constantly changing with river –floods Sand Bars

39. Pallid Sturgeon SPECIES Endangered

40. Least tern SPECIES Endangered

41. Piping plover SPECIES Endangered

43. Low head dams

44. Hoover Dam

46. Wildlife corridor Fish Ladder