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<br /> <br />Pre-project Fish Monitoring Efforts <br />The City of Eugene and the Oregon Department of Fish and Wildlife conducted fish <br />monitoring at Delta Ponds between 2004 and 2007. The primary goal of monitoring <br />efforts was to determine the overall composition of the fish community utilizing the <br />ponds and sloughs prior to the restoration work. Techniques used included a two-way <br />trap in Dedrick slough, a rotary screw trap just downstream of the weir that was <br />constructed in 2005, hoop and minnow traps throughout, and trap nets and beach <br />seining in interior ponds. <br /> <br />In January 2006, just a few months after the construction of the weir connecting the <br />southernmost ponds to the Willamette River, several dozen juvenile Chinook salmon <br />were found in both a rotary screw trap and several hoop traps within Delta Ponds. <br />Furthermore, Pacific lamprey ammocetes were also found in the rotary screw trap <br />during the 2006 fish monitoring efforts. <br /> <br />When all of the fish monitoring efforts (2004-07) are summarized, the data show that <br />those ponds that were connected to the Willamette River supported a greater diversity <br />and number of native fish species than were found in isolated interior ponds. See <br />Appendix A for a summary of pre-project fish monitoring efforts. <br /> <br />No prior fish monitoring was conducted in Heron Slough due to the near complete lack <br />of backwater habitat prior to summer 2010. <br /> <br /> <br />III. Project Requirements, Deliverables <br /> <br />Now that the hydrological connections have been made between the Delta Ponds and <br />the Willamette River, the City of Eugene would like to determine the relative abundance <br />of fish species using the restored side channel habitat, including juvenile spring Chinook <br />salmon, throughout the fall, winter, and spring months when the side channel is <br />connected to the Willamette River. <br /> <br />Timing and Frequency of Monitoring <br />Fish monitoring shall take place from October 2011 through May 2012. <br /> <br />Monitoring frequency will depend on the methodology proposed. Consultant shall <br />articulate the proposed schedule for monitoring in the submittal. Monitoring efforts shall <br />provide sufficient data to determine the timing of juvenile salmonid use of the Delta <br />Ponds system. <br /> <br /> <br /> <br />Monitoring Stations <br /> <br /> <br />