|Measuring habitat at Hoh II|
At each of the two sites, we captured and marked fish with Bismarck Brown on one night, then recaptured fish on the following night. Recapture rates for coho and Chinook salmon at Hoh I and Hoh II sites were 12% and 9%, respectively. From these numbers we will be able to make rough population estimates, as well as compare habitat use at the two sites. Additionally, we recaptured 46 previously PIT-tagged salmonids at Hoh I and 16 at Hoh II. We also tested the effectiveness of a fixed PIT tag reader for detecting previously PIT-tagged fish by placing it at the base of a logjam at Hoh I.
|Prototype mobile PIT tag reader installation at Hoh I|
Data entry, checking, and analysis will be completed from October through December. In January, we will return to the Hoh River to do another population assessment of the two sites.