Technical Report

Genetic Monitoring of the Rio Grande Silvery Minnow: Genetic Status of Wild and Captive Stocks in 2016

URL: https://webapps.usgs.gov/mrgescp/documents/Osborne%20et%20al_2016_Genetic%20Monitoring%20of%20the%20RGSM%20Genetic%20Status%20of%20Wild%20and%20Captive%20Stocks%20in%202016.pdf

Date: 2016/11/30

Author(s): Osborne M.J., Pilger T.J., Turner T.F.

Publication: Prepared for U.S. Bureau of Reclamation, 39 p.

Abstract:

We have conducted genetic monitoring of the Middle Rio Grande population of Rio Grande silvery minnow annually from 1999-2012 and resumed monitoring 2014 through 2016. This work has included monitoring stocks that were bred or reared in captivity and were released to the Rio Grande in New Mexico since 2002; when the augmentation program commenced. Monitoring in 2016 was based on genotyping 420 ‘wild’ silvery minnow collected in all three occupied reaches of the Middle Rio Grande, as well as wild-caught hatchery released fish (WCH, n=111), and progeny of captive stocks from Southwestern Native Aquatic Resources and Recovery Center (Southwestern Native ARRC), the Los Lunas silvery minnow refugium, and the Albuquerque Biological Park (n=492).