Laserfiche WebLink
<br />000155 <br /> <br />. <br /> <br />State:'" Coiorado <br /> <br />Project No.: 02-0l-l3l <br />Study No.: F-51 <br /> <br />Name: State Fish Research <br /> <br />Title: Stream Fisheries Investigations <br /> <br />Period Covered: July 1, 1987 to June 30, 1988 <br /> <br />Study Objective: To quantify the interrelationships, then determine and <br />document, through professional publications, the impacts <br />.of special regulations, macroinvertebrate densities,flow <br />regimes, and trout species introductions on established <br />trout populations in selected major streams in Colorado. <br /> <br />Job No.1 <br /> <br />Job Title: Fish Flow Investigations <br /> <br />Job Objective: To quantify and document, through professional publication, <br />the interrelationships between streamflow regimes and trout <br />population dynamics on selected sections of the following <br />streams: the Arkansas, Cache la Poudre, Colorado, <br />Fryingpan, Gunnison, Middle Fork of the South Platte,RiO <br />Grande, South Fork of the Rio Grsnde, South Platte, St. <br />Vrain, and Taylor rivers. <br /> <br />INTRODUCTION <br /> <br />This job (during the current segment) is in s state of transition. <br />Current documentation called for preparation of several reports and manu- <br />scripts as well as assisting regional biologists with set-up and analysis of <br />IFIM/PHABSIM studies and making monthly minimum and optimum flow recommerida- <br />tions on 11 study streams. <br /> <br />A professional paper on the interrelationships between stream discharge, <br />fry weighted usable area (WUA), and rainbow and brown trout year-class <br />strength was given at the Western Division of the American Fisheries Society <br />(WDAFS) meeting in Salt Lake City,Utah, in July 1987. The paper (Nehring <br />and Miller 1987) is to be published in the WDAFS proceedings from that . <br />meeting. <br /> <br />A final report on the results of the IFIM/PHABSIM analyses completed on <br />the II study streams has been completed and submitted under separate cover <br />(Nehring 198a). That final report will serve as a rough manuscript for a <br />paper on "field-proofing" the IFIM/PHABSIM methodology to be submitted to a <br />major peer-reviewed journal during the 1988-1989 segment. The paper will be <br />presented at the national AFS meeting in Toronto, Canada, in September 1988. <br /> <br />The primary purpose of this job progress report is to make monthly <br />minimum and optimum flow recommendations on all study streams where we have <br />completed IFIM/PHABSIM studies. <br /> <br />'~.. ';) <br /> <br />:1. <br /> <br />I [;1000238, <br />