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Audubon Naturalist Society Monitoring - Sligo Creek |
The Audubon Naturalist Society has a well established, highly regarded macroinvertebrate monitoring program in the region. Friends of Sligo Creek began monitoring one site on Sligo Creek using the Audubon Naturalist Society's water monitoring protocol in 2006. The site is located on Sligo Creek just south of where Sligo Creek Parkway meets University Boulevard in Wheaton (the precise location can be seen on this map). A goal of the monitoring is to have data for Sligo Creek represented in the Audubon Naturalist Society's data set, which is periodically turned over to Montgomery County to help them assess the water quality of County streams. Other goals include public education, and to see for ourselves whether Sligo Creek's water quality is getting better or worse over time. The Sligo Creek site has been named Audubon Naturalist Society Site 34.
Also, the Water Quality Committee began periodic cross section surveys of the stream channel at this site in 2007 to see how it changes over time.
Keep an eye out for future monitoring events every season on the Friends of Sligo Creek listserv and join us! The next monitoring will take place in summer 2008.
| Date | Total | Aquatic Worms (Oligochaeta) | Caddisflies (Trichoptera) | Crayfish (Decapoda) | Dragonflies and Damselflies (Odonata) | Mayflies (Ephemeroptera) | Scud (Amphipoda) | Snail (Gastropoda) | True Flies (Diptera) |
|---|---|---|---|---|---|---|---|---|---|
| 7/5/2008 | 55 | 2 | 0 | 2 | 3 (2 damselflies, 1 dragonfly) | 0 | 41 | 0 | 7 (midge) |
| 4/5/2008 | 179 | 1 | 4 | 3 | 0 | 0 | 15 | 1 (limpet) | 155 (151 midge, 3 black fly, 1 crane fly) |
| 9/8/2007 (low flow conditions) |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7/8/2007 | 26 | 0 | 13 | 1 | 0 | 1 (small minnow mayfly) | 9 | 0 | 2 (1 midge, 1 crane fly) |
| 5/11/2007 | 26 | 0 | 16 | 1 | 0 | 0 | 3 | 0 | 6 (3 midge, 2 black fly, 1 crane fly) |
| 2/03/2007 | 15 | 1 | 3 | 0 | 0 | 0 | 4 | 0 | 7 (4 midge, 3 crane fly) |
| 9/11/2006 | 60 | 0 | 44 | 1 | 0 | 0 | 11 | 0 | 4 (midge) |
| 7/10/2006 | 100 | 1 | 5 | 0 | 0 | 0 | 84 | 0 | 10 (9 midge, 1 crane fly) |
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