Technical Report

Rio Grande Silvery Minnow Population Monitoring During 2017

URL: https://webapps.usgs.gov/mrgescp/documents/Dudley-et-al_2018_RGSM-Population-Monitoring-During-2017.pdf

Date: 2018/04/27

Author(s): Dudley R.K., Platania S.P., White G.C.

Publication: Prepared for U.S. Bureau of Reclamation, 162 p.

Abstract:

As part of the Rio Grande Silvery Minnow Population Monitoring Program, the status of Rio Grande Silvery Minnow and the associated Middle Rio Grande ichthyofaunal community has been systematically monitored since 1993. This effort is unique among ichthyofaunal research studies in the Middle Rio Grande in that it has been providing consistent sampling of fishes over a long duration. Longterm sampling studies also provide the data necessary to test specific ecological hypotheses. Our primary research objective was to evaluate how seasonal and annual changes in river flows affect the distribution and abundance of Rio Grande Silvery Minnow throughout its current range.