2004 UC Proceedings Abstract
 Mapping Fish Habitats in Lake Tahoe for Planning and Management Track: Forestry, Wildlife, and Fisheries Management Author(s): Josh Metz, Martin Herold, J. Romsos High-spatial resolution multi-spectral imagery was used to map near-shore submerged substrate in Lake Tahoe. The goals of this project included determining the capability of IKONOS imagery for effectively discriminating different submerged substrate types around the lake near-shore zone, producing digital substrate maps and correlating them with observed fish habitat use data to derive fish habitat maps, improving the spatial extent and detail of existing fish habitat data using a consistent and repeatable method, and considering how best to incorporate new data into the planning and management process of the Tahoe Regional Planning Agency (TRPA). Four substrate types (boulder, mixed, sand, aquatic plants) and two fish habitat types (feed/cover, marginal) could be inferred in sufficient accuracy. A consistent method for future mapping efforts was developed for use in environmental monitoring. Finally, potential fish density distributions based on the substrate map and water depth/bathymetry information were derived by linking the remote sensing measurements with in-situ fish observations. Josh Metz Donald Bren School of Environmental Science and Management 2400 Bren Hall UC Santa Barbara Santa Barbara , CA 93106 US Phone: 8058937044 E-mail: jmetz@bren.ucsb.edu Martin Herold University of California, Santa Barbara Geography 1629 Ellison Hall UC Santa Barbara Santa Barbara , CA 93106 US Phone: 8058934196 E-mail: martin@geog.ucsb.edu J. Romsos US Forest Service - Lake Tahoe Basin Management Unit Ecosystem Conservation 35 College Dr. South Lake Tahoe , CA 96150 US Phone: 5305432745 E-mail: sromsos@fs.fed.us |
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