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<br />,. <br /> <br />. <br /> <br />AZ, on land that is owned by the Arizona <br /> <br /> <br />Game and Fish Commission. Rudd Creek <br /> <br /> <br />flows through the property, and a series of <br /> <br /> <br />ponds exist that catch and hold snowmelt <br /> <br /> <br />runoff, when available. Flooding of the <br /> <br /> <br />wetland areas is possible during high flows, <br /> <br /> <br />but flow rates are unpredictable, as is the <br /> <br /> <br />annual snowfall and subsequent runoff. <br /> <br /> <br />Ponds occasionally become desiccated due <br /> <br /> <br />to lack of precipitation. Like Silver Creek <br /> <br /> <br />Hatchery, the Sipes Wildlife Area is located <br /> <br /> <br />within the LCR drainage, However, the <br /> <br /> <br />ponds are not built for fish culture, and the <br /> <br /> <br />potential for escape during flooding IS <br /> <br /> <br />possible. Therefore, this site should be <br /> <br /> <br />rejected as a potential humpback chub <br /> <br /> <br />refuge. <br /> <br />Achii Hanyo <br /> <br /> <br />(Score 61) <br /> <br /> <br />Achii Hanyo is a remote and primitive fish <br /> <br /> <br />culture area located on Colorado River <br /> <br /> <br />Indian Tribes Land near Parker, AZ. The <br /> <br /> <br />site suffers from poor drainage, it is not <br /> <br /> <br />secure from the public or from wildlife, <br /> <br /> <br />there is no mechanism to prevent pathogen <br /> <br /> <br />transfer, and drain lines from tanks (indoor) <br /> <br /> <br />are interconnected. There is no maintenance <br /> <br /> <br />plan for the facility. Bony tail are already on <br /> <br /> <br />station, so the potential for hybridization <br /> <br /> <br />exists. Effluent from the facility is not <br /> <br />9 <br /> <br />screened to prevent escape of larval fish. <br /> <br /> <br />Only one person runs the facility, and that <br /> <br /> <br />person has less than y, year of experience <br /> <br /> <br />conducting fish culture. The source water <br /> <br /> <br />for the facility comes from a canal <br /> <br /> <br />(Colorado River water). Temperature <br /> <br /> <br />fluctuations are extreme, and dissolved <br /> <br /> <br />oxygen can be as low as 3.0 ppm. Known <br /> <br /> <br />pathogens at Achii Hanyo include <br /> <br /> <br />Columnaris, lch, Cos/ia and learnea. Due to <br /> <br /> <br />the potential for hybridization, as well as <br /> <br /> <br />environmental concerns, Achii Hanyo <br /> <br /> <br />should not be considered appropriate as a <br /> <br /> <br />refuge facility for humpback chub. <br /> <br />SUMMARY <br />The best available locations for establishing <br />refuge populations of humpback chub <br />appear to be the Mora National Fish <br />Hatchery and the Hualapai Indian Peach <br />Springs facility. In addition to providing <br />100 adult fish to the chosen facility(ies), at <br />least 5 (5%) wild fish should be added to the <br />captive refuge population on an annual <br />basis, both to increase genetic diversity of <br />the captive population, and to provide <br />enough wild fish to completely replace the <br />captive population every 20 years. In this <br />way, the captive population can exist and be <br />replenished for generations to come. It <br />would also be wise to establisli more than <br /> <br />00658 <br />