Range-wide bull trout eDNA Project map

Detecting the presence of aquatic species can be an involved and costly process. Recent technology and sampling protocols developed by the USFS National Genomics Center for Wildlife and Fish Conservation (NGC) have greatly improved the efficiency of assessing species presence by developing the first reliable eDNA assays for a variety of fish. As aquatic species move through the water, they shed DNA material that disperses through the water column and becomes environmental DNA (eDNA). eDNA sampling is a more efficient and sensitive method of species detection. The range-wide bull trout eDNA project map shows eDNA field collection sites, offering a visual display of areas where the bull trout is present or absent.