Restoration of overwintering habitat at Point Reyes National Seashore: impacts on coho salmon populations

Project Summary:

This study aims to document the distribution of large wood (living or dead wood/tree stems greater that 10cm in diameter) in the Lagunitas Creek watershed and to evaluate, under summer and winter flows, the effectiveness of the large wood installations designed to restore salmon habitat.

Surveys were conducted along four 300 meter stretches of Lagunitas Creek, Devil's Gulch, and San Geronimo Creek. Pool length and depth were also surveyed along these stretches. Finally, water velocities above and below three wooden salmon habitat improvement structures were measured for analysis in terms of salmonids preferred swimming speeds throughout their different life stages.

Links:

2009 Investigator's Annual Report

Justin Lawrence at UC Berkeley