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I I I I I I I I I I I I I I I I I I I The Recovery Program is intended to provide for the coordinated implementation of the Service's recovery plans for the three endangered fish, including this one for the bony tail chub, in the Upper Basin. Therefore, the Recovery Program will be considered a stepdown effort of this recovery plan and the primary mechanism for implementing the recovery plan in the Upper Basin. A similar cooperative interagency plan for recovery actions for Colorado squawfish, bony tail chub, humpback chub, and razorback sucker in the Lower Basin is currently being drafted. When completed, the Lower Basin Recovery Action Plan will be considered the Lower Basin stepdown effort of this recovery plan and will be the primary mechanism for implementing this Recovery Plan in the Lower Basin. The Service should ensure that the Upper Basin Recovery Program and the Lower Basin Recovery Action Plan currently being developed are fully coordinated. 123. Prohibit the further introduction of nonnative fishes into the Colorado River system. A cooperative agreement should be initiated by the Service and the States of Utah, Colorado, Wyoming, New Mexico, Arizona, Nevada, and California to prohibit the augmentation or introduction of nonnative fishes that might further compete with or prey upon the bony tail chub. Stocking of nonnative species will be confined to those species, and those areas where absence of potential conflict with rare or endangered species can be conclusively demonstrated. The States, Service, and other affected Federal agencies will develop procedures and studies for reviewing and resolving disagreements with any proposed introductions of nonnative species into the Colorado River system. 124. Protect high priority recovery areas. If studies determine that certain reaches of river provide habitat necessary for the continued existence or recovery of bony tail chub, such sensitive areas must be protected and maintained. Costs identified for this action covers only initial effects at determining habitat protection needs. Significant funds will, most likely, be needed and will be identified in the future. 13. Reintroduce hatchery-reared bonvtail chub into the wild. As additional bony tail chub caught in the wild are secured in refugia, they will contribute toward broodstock that will be used to augment the small number of bony tail chub remaining in the wild. 16