Laserfiche WebLink
<br />buildings and fed throughout the winter so that they will continue to grow and achieve the 150, <br /> <br />mm TL requirement quicker. <br /> <br />Taggjng,-All stocked fish will be PIT-tagged to better evaluate the stocking plan and its <br /> <br />various aspects (e,g" survival, growth, stocking location, and lot survival evaluation), The cost <br /> <br />would be approximately $10,050 to PIT-tag a total of2,680 Colorado pikeminnow, which would <br /> <br />occur in the autumn after a ful1 year of growth, <br /> <br />RAZORBACK SUCKER <br /> <br />Background <br />The only remaining riverine population of razorback sucker in the Upper Colorado River <br />Basin exists !n the middle Green River, with an estimated population of less than 500 adults, <br />Stocking of individuals in this population has mainly been through excess brood fish, Other <br />stockings included larval and juvenile razorback sucker into flooded bottomlands, Some of these <br />stocked fish have shown up on the spawning bar during the spawning period and juveniles in <br />wetlands had significant growth and survival demonstrating success in the stocking programs, <br />Experimental stocking of razorback sucker has occurred in the upper Colorado River <br />(including the Gunnison River) since 1996 (Burdick 1995), Limited information is available as <br />to the success of that stocking, For instance, one razorback sucker that was stocked in 1996 used <br />the Redlands Fish Ladder on the Gunnison River this past summer. Four others stocked this <br />spring also passed through the ladder this summer. The successful spawning and recruitment by <br />these stocked fish have not yet been documented, <br />The State of Colorado stocking plan requires razorback sucker to be greater than 300 nun <br />(12 inches) TL and the State of Utah stocking plan requires razorback sucker that average 300 <br />mm (12 inches) TL. Razorback sucker that are 300 nun TL average in weight around 250 g (8,8 <br />ounces), The State of Colorado stocking plan requires annual stocking of 16,440 razorback <br />sucker. These lish can all be produced at the Grand Valley facility with associated local grow- <br />out ponds throughout the Grand Valley area, The State of Utah stocking plan requires annual <br />stocking of 18,500 razorback sucker. These fish can all be produced at the Ouray National Fish <br /> <br />5 <br />