Revision History for Circular 1427 Edited by Donald E. Dennerline and Dawn E. Childs U.S. Geological Survey Cooperative Fish and Wildlife Research Units Program--2016-2017 Research Abstracts ----------------------------------------------------- Posted online April 20, 2017 ----------------------------------------------------- Revised and reposted May 22, 2017 version 1.1 The title was revised to include the year 2017. p. i – In the photo caption, “Maryland” was changed to “District of Columbia.” p. 2 – On the Cooperative Research Units map, the symbol was changed for the unit in Arcata, Calif., and the location for the unit in Hawaii was corrected to Hilo. p. 46 – For Assessment and Monitoring at Texas Parks and Wildlife Department Public River Access Leases to Guide Sustainable Management, “do” was changed to “may” in the second sentence. p. 55 – Product logos were removed from the photo showing the sea lamprey. p. 58 – For Physiology, Behavior, and Tolerances of Missouri Fishes of Conservation Concern With a Focus on Niangua Darter and Topeka Shiner, “Mississippi” was changed to “Missouri” in two places. p. 110 – The abstract title as changed to Analysis of Black Scoter Population Count Data. p. 146 – The photo was replaced. p. 158 – The photo caption was revised.