Journal Publication
A new article titled “Genetic Variability in a Recruiting Population of Endangered Razorback Suckers from Lake Mead, Arizona–Nevada” has been published in …
Lower Colorado River 2006-2008 Razorback Final Project Report
Portions of the lower Colorado River between Parker and Laguna dams were surveyed during the period January 2006 to April 2008 as part of a broad program to assess efficacy of the stocking program for razorback sucker Xyrauchen texanus. Our findings document that short-term mortality is high and long-term survival is nil because of predation losses to nonnative fishes and to fish-eating birds.
Razorback Sucker Story in High Country News
In March 2010, science journalist Hillary Rosner joined the Marsh & Associates team in the field to learn more about the plight …
Post-stocking survival of bonytail in Lake Havasu
Though functionally extirpated in the wild, bonytail continue to be stocked into the mainstem lower Colorado River. Lake Havasu serves as one of the primary stocking locations and is unique among all stocking sites because bonytail are occasionally recaptured during routine monitoring trips and by sport fish anglers–a feat that is encountered nowhere else.
Book published on Southwest Desert Fish
This comprehensive new book replaces and substantially expands upon the landmark Fishes of Arizona, which has been the authoritative source since it was first published in 1973. Inland Fishes of the Greater Southwest is a one-volume guide to native and non-native fishes of the lower Colorado River basin, downstream from the Grand Canyon, and of the northern tributaries of the Sea of Cortez in the United States and Mexico.
Eagle Creek June 2009 Report
Fish surveys were conducted on portions of Eagle Creek, Greenlee County, Arizona, during 14-16 June 2010 to determine species composition, distribution, and relative abundance. Survey methods included backpack electroshocking, seining, dip netting, gill netting, trammel netting, and minnow trapping.