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|Federal agencies release Asian carp environmental DNA study findings|
|News Releases - Environment & Weather|
|Written by Sarah Gross|
|Friday, 22 February 2013 15:43|
CHICAGO – The U.S. Army Corps of Engineers (USACE), U.S. Fish and Wildlife Service (USFWS) and U.S. Geological Survey (USGS) today, Feb. 20, released an interim report for the Asian Carp Environmental DNA Calibration Study (ECALS), which is a three-year study funded through the Great Lakes Restoration Initiative, as scoped by the Asian Carp Regional Coordinating Committee (ACRCC) Asian Carp Control Strategy Framework.
"The purpose of ECALS is to improve the understanding and interpretation of Asian carp environmental DNA results, so we can refine and make this relatively young monitoring tool the most effective to detect live Asian carp presence," said USACE Environmental DNA (eDNA) Program Manager Kelly Baerwaldt.
Initial ECALS efforts within this report focus on identifying alternative sources of eDNA beyond a live Asian carp, whereas marker development to aid in detecting the specific species and calibration experiments that look at factors that may influence the detectio n, degradation or persistence of DNA will receive greater attention in 2013.
Among preliminary findings:
The agencies will host a stakeholder conference call Feb. 26 at 10 a.m. (Central) to answer questions regarding this report. Call-in information is USA Toll-Free: 877-336-1839, USA Caller Paid/International Toll: 636-651-0008, A ccess Code: 8506361, Security Code: 0000.
"Partnership is key in the successful planning, research and implementation of a comprehensive Asian carp prevention plan, and we are confident we have the right people on board to thoroughly explore eDNA uncertainties," said USGS Researcher Jon Amberg.
The ECALS Team will continue to investigate alternative sources and pathways for eDNA detections beyond a live fish; examine how environmental variables such as light, temperature and w ater velocity impact eDNA detections; explore the correlation between the number of positive samples and the strength of the DNA source, develop more efficient eDNA markers to cut the sampling processing time in half and model eDNA transport specific to the Chicago Area Waterway System.
"As members of the ACRCC, we are committed to preventing Asian carp from becoming established in the Great Lakes through participating in extensive monitoring of the waterways and additional research on eDNA," said USFWS Midwest Region Hatchery Supervisor Kurt Schilling.
The report, executive summary and fact sheet are posted on Asiancarp.us.
Asian carp DNA surveillance programs determine the presence of Asian carp by detecting the genetic material (DNA from shed cells in slime, feces, urine, etc.) in water samples to correlate DNA detection with the possible presence of invasive silver carp or bighead carp.
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