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Nearshore Habitat Use by Juvenile Chinook Salmon in Lentic ...

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FIGURE 45.—Photos of large woody debris habitat (upper photo) and emergent vegetation habitat (lower photo)<br />

of Lake Qu<strong>in</strong>ault.<br />

We compared day and night <strong>Ch<strong>in</strong>ook</strong> salmon counts with a sign rank test. The<br />

abundance of fish at each site was calculated two separate ways; 1) nearshore abundance<br />

(number of fish per 100 m of shorel<strong>in</strong>e), and 2) shorel<strong>in</strong>e density (number of fish per m 2 ). The<br />

nearshore abundance is the estimated number of fish to 1-m depth and is based on fish counts<br />

along one or two transects (depend<strong>in</strong>g on the bottom slope) and then expanded based on the<br />

distance from the shorel<strong>in</strong>e to 1-m depth. The shorel<strong>in</strong>e density is the number of fish along the<br />

0.4-m transect. We used a transect width of 2.5 m for the 0.4 contour depth and 2 m for the 0.7-<br />

74

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