Abstract Title

Session S-05C: Using Stream Bugs to Manage and Restore Watersheds

Keywords

Freshwater

Location

Room 606

Start Date

1-5-2014 10:30 AM

End Date

1-5-2014 12:00 PM

Description

More than 20 organizations throughout Puget Sound have active biomonitoring programs to assess stream condition using the Benthic Index of Biotic Integrity (B-IBI). There has been a net decline in the biological condition of small Puget Sound streams since 2007 as shown by B-IBI scores, a Puget Sound Partnership (PSP) vital sign indicator. King County has been awarded funds from the Washington Department of Ecology to identify and prioritize streams for protection and restoration, addressing two PSP Action Agenda recovery targets. This project will develop a decision framework for prioritizing restoration work, and will develop strategies and cost estimates to (1) preserve drainages with “excellent” B-IBI scores and (2) restore 30 drainages from “fair” to “good” B-IBI scores. Based on B-IBI scores from nearly 1,200 sites sampled between 1994 and 2013, 119 sites scored “excellent” one or more times, but only 28 sites averaged “excellent”. 642 sites scored “fair” one or more times and 452 sites averaged “fair”. Proposed criteria such as watershed urbanization, basin area, forest fragmentation and other factors will be presented for prioritizing and choosing which 30 streams or basins to restore from “fair” to “good”. This prioritization process will give local jurisdictions the greatest chance for implementing successful restoration and preservation actions that improve stream condition as measured by B-IBI.

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May 1st, 10:30 AM May 1st, 12:00 PM

Using B-IBI to Identify Puget Sound Watersheds for Restoration and Protection

Room 606

More than 20 organizations throughout Puget Sound have active biomonitoring programs to assess stream condition using the Benthic Index of Biotic Integrity (B-IBI). There has been a net decline in the biological condition of small Puget Sound streams since 2007 as shown by B-IBI scores, a Puget Sound Partnership (PSP) vital sign indicator. King County has been awarded funds from the Washington Department of Ecology to identify and prioritize streams for protection and restoration, addressing two PSP Action Agenda recovery targets. This project will develop a decision framework for prioritizing restoration work, and will develop strategies and cost estimates to (1) preserve drainages with “excellent” B-IBI scores and (2) restore 30 drainages from “fair” to “good” B-IBI scores. Based on B-IBI scores from nearly 1,200 sites sampled between 1994 and 2013, 119 sites scored “excellent” one or more times, but only 28 sites averaged “excellent”. 642 sites scored “fair” one or more times and 452 sites averaged “fair”. Proposed criteria such as watershed urbanization, basin area, forest fragmentation and other factors will be presented for prioritizing and choosing which 30 streams or basins to restore from “fair” to “good”. This prioritization process will give local jurisdictions the greatest chance for implementing successful restoration and preservation actions that improve stream condition as measured by B-IBI.