Intensively Monitored Watershed

Millions of salmon habitat restoration dollars have been spent in the Snake River Salmon Recovery Region (SRSRR) since spring Chinook and steelhead were listed as threatened under the Endangered Species Act. Little information is available regarding the effectiveness of restoration efforts in SE Washington. The Snake River Salmon Recovery Board (SRSRB) is committed to determining the contribution of restoration on salmon recovery by engaging in the adopting of an Intensively Monitored Watershed (IMW) approach to measuring restoration effectiveness.

An IMW is a large scale watershed wide habitat and fish population monitoring approach which is designed to be conducted over a minimum of ten years, including pre and post restoration monitoring. The objective of the IMW is to correlate increases in fish populations to measurable habitat restoration actions.

The SRSRB has received funds to develop and implement an IMW located in the Snake River Salmon Recovery Region of the state of Washington. A primary goal of IMW projects is to determine the effectiveness of specific restoration actions on increasing salmonid production. Eco Logical Research Inc. (ELR) was hired to develop the IMW experimental and monitoring design with the support and input of the Snake River Regional Technical Team (RTT), and coordinated by the SRSRB (Figure 1).