Native Fish Translocations in Arizona, 2007 through 2014

During 2007 through 2014, Arizona Game and Fish Department completed 251 stockings of warm-water native fishes into 112 locations.  Species were often stocked multiple times into each system to improve the chances that populations would establish.  Most of the locations were stocked to establish new populations, but a few, particularly for Razorback Sucker, Xyrauchen texanus and Colorado Pikeminnow, Ptychocheilus lucius, were augmentation programs.  The number of new translocation sites varied greatly among species:  1 Razorback Sucker, 1 Little Colorado Sucker Catostomus sp., 1 Sonora Sucker, Catostomus insignis, 1 Desert Sucker, Catostomus clarki, 1 Speckled Dace, Rhinichthys osculus, 1 Woundfin, Plagopterus argentissimus, 1 bonytail chub, Gila Elegans, 1 Yaqui chub Gila Purpurea, 1 Colorado Pikeminnow, 2 Humpback Chub, Gila Cypha, 2 Bluehead Sucker Catostomus discobolus, 3 Longfin Dace, Agosia chrysogaster, 4 Gila Chub, Gila intermedia, 4 Little Colorado Spinedace, Lepidomeda vittata, 4 Loach Minnow, Rhinichthys cobitis, 5 Spikedace, Meda fulgida, 10 Roundtail Chub, Gila robusta, 43 Desert Pupfish, Cyprinodon macularius, and 48 Gila Topminnow, Poeciliopsis occidentalis.  Species successfully established populations in most, but not in all locations.  Reasons for establishment failures include drying of sites thought to be perennial, cold winter-time water temperatures, habitat unsuitability, and negative interactions with other species.