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<br />,<jel---/ <br />~?~ <br />-:j- /1 !~, <br />/). -:-.. <br />j .~ <br />i ~z, i,y <br /> <br />. <br /> <br />. <br /> <br />FISHERY VALUE LIMITING FACTOR LIST' <br /> <br />A. NATURAL FACTORS (PHYSICAL) <br />1. Intermittent stream <br />-2. Blowout stream <br />3. Flash flood area <br />4. Highly erosive drainage <br />--5. Steep gradient <br />6. No spawning areas <br />---7. Poor pools and cover <br />8. Pool area excessive <br />~9. Riffle area excessive <br />10. Poor fishability <br />11. Remoteness <br />12. Streamside access limited <br />(canyon walls etc.) <br />13. Poor aesthetically <br />14. High temperature <br />15. Low temperature <br />16. Low flow <br />17. E."tcessive bank erosion <br /> <br />B. NATURAL FACTORS (BIOLOGICAL) <br />1. Rough fish <br />2. Small game fish size <br />3. Few game fish <br />4. Lack of reproduction <br />5. Unsuited game fish <br />6. Riparian vegetation inadequate <br />7. Riparian vegetation too dense <br />8. Excessive reproduction <br />9. Excessive aquatic vegetation <br /> <br />C. ARTIFICIAL FACTORS <br />1. Water diversion- irrigaci.on <br />2. Water diversion-domescic: <br />3. Water diversion-power <br />4. water diversion-other <br />5. Flow fluctuation-power <br />6. Flow fluct:Uation- irrigat:ion <br />7... Flow fluctuation-domesti.c <br />8. Return irrigation flow~ <br />9. Land abuse-roads <br />10. Land abuse-housing <br />11. Land abuse-logging <br />12. land abuse-livestock <br />13. Land abuse-other <br />14. Stream encroachment-roads <br />15. Stream encroachment-mine tailings <br />16. Mine dredging <br />17. Channelization-road related <br />18. Channelization-ice contz-ol <br />19. Channelization-land reclamation <br />20. Streamside spraying <br />21. Access limited-private landowner <br /> <br />. <br /> <br />D. RECREATIONAL CONFLICT <br /> <br />. <br /> <br />1.. T1ading or 5~;i=.mi.ng <br />2. Boats or tubes <br />3. Recreational streamside overuse <br /> <br />E. FOUUTION <br />1. Excessive siltation <br />2. Mining <br />3. Commercial-chemical <br />4. Commercial-organic <br />5. Domestic <br />6. Agricultural-feed lot <br />7. Agricultural-nonpoint <br />8. Urban runoff <br /> <br />. <br />