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<br />3.2 State of Utah <br /> <br />The State of Utah's stocking plan (Hudson 2001) was revised based on the recovery goals. The <br />plan calls for only stocking razorback sucker and bonytail. Utah is relying on other Program <br />activities to continue, e.g., instream flow protection, habitat restoration, and research and <br />monitoring. <br /> <br />The razorback sucker goal is to achieve 7,538 adults by year ten. This is expected to be <br />accomplished by stocking 18,500 razorback sucker each year for 5 years. The razorback sucker <br />will be > 300 mm TL at stocking and the product of the 25 x 25 breeding matrix. Theplan <br />assumes 50, 60, and 70 percent survival for age-3, age-4, and age-5 razorback sucker, <br />respectively. <br /> <br />The bony tail goal is to achieve 6,756 adults by year ten. This is expected to be accomplished by <br />stocking 16,280 bony tail each year for 7 years. The bony tail will average 200 mm TL. The plan <br />assumes 30, 50, 60, and 70 percent sUlvival for age-2, age-3, age-4, and age-5 bony taiL <br />respectively. <br /> <br />3.3 San Juan Program <br /> <br />This is not a State-based plan. It encompasses fish to be stocked throughout the San Juan River, <br />including river reaches in New Mexico, Colorado, and Utah. Two separate stocking efforts are <br />underway: razorback sucker (1994-present) and Colorado pikeminnow (1996-present). <br /> <br />Razorback sucker.- The objective ofthe 1994 Experimental Plan was to study survival, <br />dispersal, and retention. During 1994-1996,940 fish were stocked at four sites (RM 158.6, <br />136.6, 117.5, and 79.6). Results indicated that fish did survive and remained in the system. <br />Razorback sucker that were> 400 mm TL at stocking had the greatest survival. Some fish from <br />the downstream stocking sites ended up in Lake Powell. The objective of the 1997 <br />Augmentation Plan was to stock 15,900 razorback sucker between RM 159.0 and 0.0. Attempts <br />were made to stock fish> 300 mm TL, preferably> 400 mm TL; but in actuality, 82.3% stocked <br />were < 301 mm TL. Only 5,896 razorback sucker were stocked during 1997-2001, all at one <br />location (RM 158.6). Razorback sucker that were >400 mm TL at stocking had the greatest <br />survival. Spawning has been documented in 5 straight years (1997-2001). <br /> <br />Problems with the first two stocking efforts included: fish stocked were too small (small size- <br />class at stocking equals poor survival); and SJRRIP has no holding facilities/grow-out ponds, and <br />must take razorback sucker from other entities (on their schedule) and stock them directly into <br />the river, regardless of size. The solutions to these problems are that the SJRRIP Biology <br />Committee commits to not stocking any razorback sucker < 300 mm TL, the SJRRIP will <br />develop grow-out ponds (currently has 25 surface-acres, 9 more surface-acres planned; and fish <br />are reared for two growing seasons before being harvested), and aquaria are being used to rear <br />larval razorback sucker from Lake Mohave until they are large enough to be stocked into grow- <br />out ponds. <br /> <br />7 <br />