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<br />r~~ ~b U~ MUN jj:bl AM VU ~iver ~ecovery <br />'001419 <br /> <br />~AX NU, jUj~b~(j~( <br /> <br />r. U~/ lU <br /> <br />B. Green River Subbllsin (Craig to tile Colorado River Confluence) <br /> <br />Curr~l1t Protocol: Block and shock with shoreline electro!ishing during mid-April to mid-Julle. <br />Threc or four sampling occasions are donc about 1-2 weeks aparl. The Green River subbasin is <br />divided into middle and lower scgments; the middle Green River includes the Yampa River <br />(Craig to Eeho Park), Whito River (Taylor Dam to Green River eonf1uencc), and mainstcm <br />Green River (Split Mountain to Sand Wash), and the lower Green River includcs <br />Desolation/Gray canyons (Sand Wash to Grecn River City), and the lower mainstem (Grecn <br />Rivcr City to Colorado Rivcr COil (1ucnce) , <br /> <br />Reco,Jllmendations: <br />. Estimates of adults will include fish ~450 rom 1'L; Sllbadllll~ will include fish 400 <br />to 449 rom '1'L <br />Conlinllc cun'ent c[[ortto maintain precision <br />Conduct Yampa River, White River, and middle mainstem Green River estimates <br />for a fourth consecutive year (i.c., 2003) to be consistent with the Desolatiou/Gray <br />canyons and lower mainstcm Green River estimates <br />Final population estimates will be for the entire Green River subbasin <br />Conduct estimates in each of 3 consecutive ycars followed by 2 years off <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />C. San Juan River Subbasin <br /> <br />~:!.iddlc San JUIIl1 River <br /> <br />Cunl'nt Prnlocoj: Population estimates are not cmrently possiblc bccause of too few wild fish. <br />Population estimatcs have been calculated [or the reach from Stump Camp to Four Corners <br />Bridge (approximately 17 miles) based on data collectcd from fish community studies. <br /> <br />ReC01nl1lcndatio!J~: <br />Tncrease wild pOjJulation of Colorado pikeminnow by augmenting with hatcl1cry- <br />produced fish ' <br />Begin population ljstimates whcn fish stocked ill the first year of the approved <br />stocking plan are age 5 <br />Estimatcs ofadl1lts will include fish ~450 mm TL; subadults will ine1ucle fish 400 <br />lO 449 m111 TL <br />Sampling protocols will be similar to those currently in use in thc upper basin to <br />minimize variability and maximize prccision <br />Conduct poplllation estimates thrOllghout occupied rangc of stocked fish in San <br />Juan River subbasin ' <br />Conduct cstimatcs in each of3 consecutive years followed by 2 years off <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />2 <br />