Skip to main content
U.S. flag

An official website of the United States government

Data used to assess differences in shedding of environmental DNA between living fish and carcasses

August 7, 2025

These data were generated from a five-day laboratory study that compared environmental DNA (eDNA) concentrations derived from live and dead rainbow trout (Oncorhychus mykiss) to investigate how eDNA shedding differs between live and dead fish. Live and dead fish were each housed in separate tanks and eDNA samples were collected from each tank after 1, 2, 3, and 5 days. Additionally, propidium monoazide (PMA) was used to differentiate eDNA contributions from intact versus disrupted cells from both live and dead fish. The metadata described include: data collected on each fish used in the experiment including length and weight; quantitative PCR (qPCR) cycle threshold (Ct) values; and eDNA copy number. The metadata also includes the Y-intercept, slope, and R-squared value for each qPCR assay performed.

Publication Year 2025
Title Data used to assess differences in shedding of environmental DNA between living fish and carcasses
DOI 10.5066/P9VABQDO
Authors Carl O Ostberg, Marshal S Hoy, Dorothy Murphy Chase, Hiroki Yamanaka, Jeff Duda, Takaya Hirohara
Product Type Data Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Western Fisheries Research Center (WFRC)
Rights This work is marked with CC0 1.0 Universal
Was this page helpful?