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Desert Fish Habitat Partnership

Fishes of the Upper Colorado River Basin have one of the highest levels of endemism in the United States. The range and abundance of these fish has declined over the last century and continues to decline as a result of legacy impacts from past management practices, current water management, interactions with non-natives, and other impacts. Seven of these fish are considered imperiled by the American Fisheries Society and four are listed as endangered by the U.S. Fish and Wildlife Service. We applied a complementarity-based approach to develop priority ranks (0 – 1; low to high) for catchments in the Upper Colorado River Basin. We used methods and a framework that we had previously developed for the Lower Colorado...
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Desert Fish Habitat Partnership
This folder contains data contributed to the National Fish Habitat Partnership (NFHP) Data System by the Desert Fish Habitat Partnership (DFHP). The DFHP was recognized as a partner of NFHP in March 2009.
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Partnership - Desert Fish Habitat Partnership Shoshone Pupfish are one of the most imperiled species in the Death Valley region due to their natural rarity, historic disruption of their habitats, lack of replication of the one remaining population, and genetic effects of small population size. Shoshone Spring and wetlands have been owned by one family for over 50 years. Endemic Shoshone Pupfish were considered extinct by 1969, but rediscovered in a ditch near the springs in 1986. A single pond was built and stocked with 75 of these fish, believed to be the last of their kind. The purpose of the project was to construct two new additional habitats, one secluded in a mesquite bosque, and one in a landscaped...
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Partnerships - Desert Fishes Habitat Partnership and Western Native Trout Initiative Bluehead Sucker ( Catostomus discobolus) and Bonneville Cutthroat Trout ( Oncorhynchus clarki utah) have experienced extensive population declines and range reduction, often from habitat fragmentation. In the Weber River, Utah, Bluehead Sucker occurs in three fragmented reaches and the strongest population in the Weber River is confined below the Lower Weber River Diversion structure. Allowing passage around this diversion would provide Bluehead Sucker access to needed canyon habitat. Large fluvial Bonneville Cutthroat Trout have been virtually eliminated from river mainstems throughout this species’ range, but still persists...
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Conservation rank data for each drainage catchments in the Upper Colorado River Basin. Some smaller catchments were not ranked. Catchments are the drainage area (local watersheds) for each individual stream segment within the 1:100,000 scale National Hydrography Plus Version 1 (NHDPlusV1) dataset. The NHDplus catchments have been ranked (valued) based on the representation of native fish species given the threats to their persistence (i.e., non-native fish species, land use, and habitat fragmentation). The ranking process placed importance on areas with several native species as well as areas important to individual species with restricted distributions and so is not simply a species “hot spot” assessment. Catchments...
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