Laserfiche WebLink
<br />I <br />I <br /> <br />I <br /> <br />I <br />I <br />I <br /> <br />I <br /> <br />I <br /> <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br /> <br />I <br /> <br />I <br /> <br />I)02~OO <br />Table 2. Monthly day and night kokanee entrainment rates (fish/acre/ft) and <br />monthly average dam discharge (CFS) from Blue Mesa Reservoi:r. <br />Year Month Day 90%- Night 90% Monthly mJjs <br /> Rate Confidence Rate Confidence average <br /> Interval Interval CFS <br />1994 August. 0.0064 ,.0015 0.0 1935 54.8 <br /> September 0.0020 0.0200 1813 51. 3 <br /> October 0.0 0.0601 1584 44.9 <br /> November 0.0 0.0161 1236 35.0 <br />1995 April 0.0 0.0173 3288 93.1 <br /> May 0.0216 ;:.0180 0.0309 ;:.0111 4333 122.7 <br /> June 0.0700 ;:.0420 0.0157 ;:.0205 5533 156.7 <br /> July 0.1325 ;:.0596 0.0613 ,.0588 8231 233.1 <br /> August 0.0591 ;:.0259 0.0210 ;:.0112 4199 118.9 <br /> September 0.0050 ;:.0175 0.0061 ;:.0180 2833 80.2 <br /> November 0.0068 0.0375 2870 81. 3 <br />1996 June 0.0663 ;:.0530 0.013 0 ;:.0088 5223 147.9 <br /> July 0.0311 ;:.0185 0.0031 ;:.0040 4232 119.9 <br /> August 0.0216 0.0156 2553 72.3 <br /> <br />Reservoir Surveys <br /> <br />Three specific features of the reservoir fishery were examined using <br />mobile hydroacoustic monitoring equipment. We conducted reservoir <br />surveys to determine the spatial distribution of kokanee within the <br />reservoir, their densities which were used to develop population <br />estimates, and we more closely examined the distribution and <br />relationship of fish found in the intake channel at Blue Mesa Dam. This <br />work combined with some vertical gill netting, needed to assess species <br />composition, provided the data necessary to assess the extent and <br />possible vulnerability of the reservoir fishery. <br /> <br />The reservoir was surveyed during the weeks of June 6, August 1, and <br />October 3, 1994, and August 17, 1995. Surveys were conducted at night <br />(20:00- 2:00 hrs) when fish were more widely distributed and easier to <br />individually detect and count. Measurements were taken from a boat <br />traveling at speeds ranging from 5-8 km/hr over 19 reservoir transects <br />which zig~agged between the Lake City Bridge and Blue Mesa Dam. <br /> <br />16 <br />