Instream Flow Needs Analysis - Okanagan Basin Water Board

FINALOkanagan Basin Instream Flow NeedsNode# Node descriptionRainbowtrout Chinook Steelhead Kokanee Sockeye Coho34 Chute Creek ● ●36 Eneas Creek ● ●38 Robinson Creek ● ●40 Naramata Creek ● ●42 Trout Creek ● p ● p44 Turnbull Creek ●46 Penticton Creek ● ●47 Okanagan Lake ● ●48 Okanagan River at Penticton ● ● ●51 Shingle Creek ● ●52 Ellis Creek ● ●55 Marron River ●58 Skaha Lake ● ● ●59 Okanagan River at Okanagan Falls ● ● ●60 Shuttleworth Creek ●64 Vaseux Lake ● ● ●66 Vaseux Creek ● ● ●69 Park Rill71 Wolfcub Creek ●73 Testalinden Creek75 Okanagan River near Oliver ● ● ● ● ●78 Inkaneep Creek ● ● ●80 Osoyoos Lake ● ● ● ● ●81 Okanagan River at Oroville, WA. ● ● ● ● ●25Residual area E-5 (Lebanon & DeeperCreek)27 Residual area W-8 (Westbank Creek) ●37 Residual area W-12 (Prairie Creek) ● ●54 Residual area E-11 (McLean Creek) ● ●● = species present at nodep = species not currently present within the tributary stream but potential presence here if species recovery should occur at somefuture dateSpecies colour coding in table corresponds to colours used to distinguish a particular species’ optimal rearing/spawning flows infigures in the Results section2.4.2 Fish species periodicity (critical periods for meta-analysis)A life history or “species periodicity” table was developed for key salmonid species of managementconcern present in the Okanagan Basin. The periodicities indicate when particular life-stage-specificregressions from the Hatfield and Bruce (2000) meta-analysis would be applied for each species locatedat a stream node. Table 2.3 displays the timing of adult/juvenile migration, spawning, incubation andrearing for stream rearing rainbow trout, steelhead and Chinook and the timing of adult/juvenilemigration, spawning and incubation for lake rearing kokanee and sockeye. It also shows hypotheticalperiodicities for stream rearing coho salmon, using life stage information obtained from studies in theESSA Technologies Ltd. & 18Solander Ecological Research