It is one of the only two, beside Gila trout, native trout species in Arizona, and originates from the White, Black, and Little Colorado rivers in high altitudes of 5900 feet. These data provide additional reference information with regard to the fate and transport of REEs in freshwater fish tissues in a large aquatic system.īioaccumulation Freshwater fish Lanthanide Metals Rare earth elements Risk assessment.Ĭopyright © 2014 Elsevier Ltd. The Apache trout is a state fish of Arizona, where are its native waters. Concentration patterns in this system were consistent with natural conditions without anthropogenic sources of REEs. Decreasing REE concentrations were found with increasing age, total length or weight for largescale and longnose suckers, smallmouth bass, and walleye. Benthic feeding species (exposed to sediments) exhibited greater concentrations of REEs than pelagic omnivorous or piscivorous fish species. Tissue concentration patterns indicated that REEs accumulated to a greater extent in organs, viscera, and bone compared to muscle (fillet) tissues. While shark attacks on humans are rare, sightings have increased off East. Total concentrations (ΣREE) ranged from 0.014 to 3.0 mg kg(-1) (dry weight) and averaged 0.243 mg kg(-1) (dry weight). by extreme drought and a nearby wildfire that killed thousands of fish. The fish looks very unusual and this is perhaps the reason why it is quite expensive. The REE distribution patterns were examined within fillet and whole body tissues for three size classes. Just like the Asian Arowana, Discus is also an expensive freshwater fish. Rare earth elements (REEs or lanthanides) were measured in ten freshwater fish species from a reservoir in Washington State (United States). Find Rare freshwater fish stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection.