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Large Woody Debris. The amount of large wooc cebns neeaea vanes dv 

 geograpnic location. 



Southeast Alaska. Nortnern California, ana western Oregon ana Wasnington: 

 greater than 80 oieces per mile: greater than 24 men aiameter; greater 

 than 50 foot lengtn. 



East of Cascaae Crest in Oregon. Wasnington. ana laaho: greater than 20 

 pieces per mile; greater than 12 Incn aiameter: greater than 35 foot length. 



Bank Stability and Lower Bank Angle (non-forestea setting): Bank stability 

 exceeas 80%. 75% of banks snouia be unbercut (i.e. less than 90 aegree 

 angle). Less than 25% of bank angles snouia be greater than 90 Pegrees. 



Width to Depth Ratio: less than 10 in ail systems (measured as mean 

 wettea w rth Oiviaea by mean deoth). 



Elements Of The PACFISH Strategy 



The PACFISH effort is a proactive, ecosystem aoproach to management of watersheas 

 ana Pacific anadromous fish habitats across five Forest Service Regions ana four BLM 

 state aaministrative units, including the states of Alaska. California, Idaho, Oregon and 

 Wasnington. Eight alternatives are being evaluated, including six developed by the 

 PACFISH Field Team, alternative 8A from the Gang of Four ReDort. ana a draft riparian 

 management strategy from Region 5 of the Forest Service. The eignt alternatives mcluPe 

 some "combination ana aoplication of key watersheP identification, watershea analysis. 

 Rioanan Habitat Conservation Areas anb stanaaras ana guiaelines. ana watersnea 

 restoration. The PACFISH strategy is builbing upon a scientifically sounP assessment 

 that characterizes current haPitat conPitions. proviPes an unOerstanaing of the elements 

 or "gooa" haDitat conaition, proviaes the knowlePge of how to manage watersneas to 

 maintain "gooa" habitat where it now occurs ana achieve "gooa" habitat conPitions in 

 areas that currently are aegraaea. 



o Riparian Management Objectives are being refineb that call for the maintenance 

 or restoration of: (a) water puality to a aegree that proviPes for stable ana productive 

 ecosystems (i.e. timing and character of temperature, sediments and nutrients), 

 (b) stream channel integrity, channel processes and sediment regime under 

 which the ecosystems developed (e.g. timing, volume, and character of sediment 

 input and transport), (c) instream flows to support desired riparian and aquatic 

 habitats, stream channel stability and effective function, and ability to route flood 

 discharges, (d) natural timing and variability of the water table elevation in meadows 

 and wetlands, (e) diversity and productivity of native and desired non-native 

 plant communities, (f) riparian vegetation so amount and distribution of large 

 woody debris is characteristic of natural riparian and aquatic ecosystems, (g) 

 habitat for populations contributing to viability of riparian-dependent comn lunities 

 (i.e. native and desired non-native plants, vertebrates, and invertebrates), (h) 

 riparian vegetation for adequate summer and winter thermal regulation, (i) riparian 

 vegetation so the rates of surface and bank erosion and channel migration are 

 similar to the rates under wnich the communities developed, and (j) riparian and 



PACFISH Strategy Executive Summary: Page - 6 



