New Search
<br />III. REQUIREMENTS / SPECIFICATIONS <br /> <br /> <br /> <br />I. Introduction <br /> <br />The City of Eugene is seeking proposals from qualified consultants to conduct fish <br />monitoring at the Delta Ponds Floodplain Restoration Project site. <br /> <br />The goals of the project are to determine: <br /> <br />a. fish species composition, <br />b. relative abundance of each species, and <br />c. the timing of juvenile salmonid use of the Delta Ponds system. <br /> <br />Fish monitoring shall take place from October 2011 through May 2012 at 4 to 8 stations <br />throughout the Delta Ponds system. Methodologies and sampling schedule shall be <br />proposed in consultant submittal and will be agreed to during contract negotiations. <br />Consultant shall provide all equipment needed to complete the work. A final report <br />summarizing methodology, results, and conclusions shall be submitted by August 15, <br />2012. <br /> <br /> <br />II. Background <br /> <br />Historic Conditions <br />In the past, the Willamette River offered <br />ideal rearing habitat for juvenile salmonids <br />in its highly braided main channel and <br />numerous side channels. However, <br />approximately 75% of the river’s shoreline <br />has been lost due to channelization. Delta <br />Ponds is located in the heart of Eugene <br />(see Map 1) in a region of the Willamette <br />River that historically consisted of a broad <br />network of side channels, oxbow lakes, <br />and riparian forest. As recently as 150 <br />years ago, the main channel of the <br />Willamette River flowed through what is <br />now the Delta Ponds area, before shifting <br />to its current location following a large <br />flooding event. When the main channel <br />shifted to its current location, the Delta <br />Ponds area became a 2.2 mile long side <br />channel of the Willamette River (see 1936 <br />aerial photo to right) that flowed primarily <br />during the late fall, winter, and spring when <br /> <br /> <br />