USDA Forest Service

Pacific Southwest Research Station

Pacific Southwest
Research Station

800 Buchanan Street
Albany, CA 94710-0011
(510) 883-8830
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

NICHES: Nearshore indicators for clarity, habitat and ecological sustainability

Map of Lake Tahoe with site locations- 49 sites for snorkeling surveys, and 14 transects
() for minnow trap surveys.

Principal Investigators:
Sudeep Chandra, University of Nevada-Reno
Craig Williamson, Miami University of Ohio
James Oris, Miami University of Ohio
Geoff Schladow, University of California-Davis

Proposal [pdf]

Final Report [pdf]

Estimating ultraviolet attainment threshold depth [xls]

Please contact Dr. Sudeep Chandra with questions regarding the final report.

Project Summary

Lake Tahoe’s fishery is among one of the least studied of all the large lakes in the world. Over time, there have been a variety of stressors (e.g., introduction of species, eutrophication, and nearshore habitat modification) which may have impacted the fishery. Only a limited amount of snapshot investigations have been conducted to investigate these impacts or determine the statues of a particular species.

This project compiled information to determine the status of the nearshore native and non-native fish community and determine if there are quantifiable indicators and methodologies that can be created to determine the condition of the nearshore fishery. Experiments were also conducted to determine if ultraviolet radiation can be used to link nearshore and non-native fish ecology to the physical environment.