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Module 4 and 5 Stream Ecology

Module 4 and 5 Stream Ecology. Detecting Nutrient Impacts on Stream Water Quality Case Study- Cape Fear River, North Carolina. Module 4/5 Stream Nutrients – Cape Fear River. Background: These slides present:

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Module 4 and 5 Stream Ecology

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  1. Module 4 and 5Stream Ecology Detecting Nutrient Impacts on Stream Water QualityCase Study- Cape Fear River, North Carolina

  2. Module 4/5 Stream Nutrients – Cape Fear River Background: These slides present: 1 . background information on the Cape Fear River, N.C. and Tischer Creek, Duluth, MN for the purpose of discussing stream nutrient chemistry analysis in lab (only Cape Fear as of 5-16-03) 2. Specific techniques for students to review in or out of class (packaged as separate slide file from Modules 8/9 and 10/11 that cover Lab techniques for lake and stream surveys) 3. Note: There will be accompanying information in the form of pdf, rtf and .doc files of a lab lesson handout(s) and supporting info pdf, rtf and .doc files of analytical methods for a suite of water quality parameters (see notes on slides for further information)

  3. Features Largest NC river system 9000 sq. mi. Importance –industry, transportation, recreation,drinking water, aesthetics Estuary – nursery for fish crabs, shrimp >1.5 million people Water Resource / Quality Issues human wastewater swine and poultry wastewater logging row crop agriculture industrial wastewater >280 permitted point sources urban stormwater Multi-agency monitoring program led by UNC-Wilmington Data animation concept initiated by Rich Huber (UNC- Wilmington) DVT developed by Norm Will et al. (NRRI-WOW)

  4. Lower Cape Fear R. in SE N. Carolina Major river system • 1995-2002 monthly data available at www.uncwil.edu/cmsr/aquaticecology/lcfrp • full Annual WQ reports also on web with interpretation by UNC-Wilmington scientists River Run DVT: • animates date either as a time series for 1 site (out of 15) or upstream to downstream at one date • T, DO, pH, salinity, EC, turbidity, fecals, NO3, NH4, TN, ortho-P, TP, chlorophyll-a

  5. freshwater ocean estuary • salinity 0 – 30 ppt • variable DO, fecals, NH4-N, TP, … • many dramatic events in Aug-Sep

  6. Salinity • DO • Fecals • Turbidity • nutrients http://www.uncwil.edu/riverrun/index.html Hurricane BonnieSTORM EFFECTS September1998 – Some things went up and some went down

  7. So what happens nearly every Aug-Sep in N. Carolina ? Bertha Fran Hurricanes ! Bonnie in Sept ’98 Other hurricanes or gales

  8. Here is Aug’98 : pre-Bonnie ----station gradient --- A closer look at early September 1998 Hurricane Bonnie hit on Aug 26, 1998 DO colored

  9. Cape Fear River Another look at the DO record straddling Hurricanes Fran, Bonnie and Floyd Bonnie Fran Floyd

  10. END

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