GCMRC Updates
The Grand Canyon Monitoring and Research Center currently has 11 active science projects as a part of its Triennial Work Plan (FY2018-2020) for work conducted as the science provider to the Glen Canyon Dam Adaptive Management Program. New developments, recent publications and other current activities will be listed here. Check here to find out the latest information from the Center.
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What environmental conditions reduce predation vulnerability for juvenile Colorado River native fishes?
The incompatibility of native Colorado River fishes and nonnative warm-water sport fishes is well documented with predation by nonnative species causing rapid declines and even extirpation of native species in most locations. In a few rare instances native fishes are able to survive and recruit despite the presence of nonnative warm water...
Ward, David L.; Vaage, Benjamin Are hatchery-reared Rainbow Trout and Brown Trout effective predators on juvenile native fish?
Hatchery‐reared Rainbow Trout Oncorhynchus mykiss and Brown Trout Salmo trutta are typically fed exclusively on commercially prepared pelleted feeds and have no experience catching or consuming live fish at the time of stocking. Despite this lack of predation experience, it is commonly assumed that stocked Rainbow Trout and...
Ward, David L.; Morton-Starner, Rylan; Vaage, Benjamin
National Geographic Highlights SBSC Science and Youth Program
National Geographic posted a video on their webpage titled, “At 17 Million Years Old, Grand Canyon Still Has Lessons to Teach”. The video focuses on the importance of the Colorado River, mostly from the perspective of participants in the Grand Canyon Youth program, a partner of the Grand Canyon Monitoring and Research Center (GCMRC) (part the Southwest Biological Science Center).
Outstanding in the Field (Ep 2): Citizen Science—Your Data in Action
The USGS Ecosystems Mission Area brings you Outstanding in the Field, a series of stories about our science, our adventures, and our efforts to better understand our fish and wildlife and the ecosystems that support them. In this episode we’re talking about citizen science and getting the public involved in the scientific process of monitoring aquatic insects in the