Wills Creek Preassessment Eric Null Len Lichvar Produced by Somerset Conservation District, 6024 Glades Pike Road Suite 103, Somerset, PA 1 2 Wills Creek Preassessment Eric Null Len Lichvar March 2010 Somerset Conservation District Funding for this project provided by the Foundation for Pennsylvania Watersheds With special assistance from the Pennsylvania Fish and Boat Commission Photos by Len Lichvar, Eric Null, and Amanda Deal Copies of this report may be obtained by contacting the Somerset Conservation District 6024 Glades Pike Road, Suite 103 Somerset, PA 15501 Phone (814) 445-4652 ext.5 Fax (814) 445-2044 E-mail
[email protected] Report text may be accessed on the Somerset Conservation District Website http://www.somersetcd.org/ 3 Table of Contents Forward/Acknowledgements………...……………………………………………….7 Introduction………………………………………………………..………………….8 Methods………………………………………………………………………………10 Results…………………………………………………..…………………………....14 Discussion…………………………………………..………………………………..29 Recommendations …………………………………….…………………………….30 Literature Cited……………………………………….……………………………...31 Appendix 1— Macroinvertebrates collected at each site Appendix 2—Fishes collected at each site Wills Creek Sampling Station 5 4 List of Figures Figure 1. The Wills Creek watershed………………………………………………………....8 Figure 2. Wills Creek Preassessment sampling points…………………………………...….11 Figure 3. Macroinvertebrate species richness of the Wills Creek Watershed……………….15 Figure 4. Shannon-Weaver Diversity Index for the macroinvertebrates communities of the Wills Creek Watershed……………………………………………………..16 Figure 5. HBI scores for the Wills Creek watershed………………………………………....17 Figure 6. Percent EPT taxa in the Wills Creek watershed…………………………………....18 Figure 7. Percent Dominant taxa in the Wills Creek watershed……………………………...18 Figure 8. Percent acid tolerant taxa in the Wills Creek watershed…………………………...19 Figure 9. Fish species richness in the Wills Creek watershed ………………………………..21 Figure 10. Shannon-Weaver diversity index for fish communities in the Wills Creek Watershed…………………………………………………………………...22 Figure 11.