Scientific Investigations Report 2006–5101–D
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5101–D
Table 15. Fish species richness, total abundance, percentages of dominance (single species), salmonids, and nonnative fish for 28 sites, Willamette River basin and surrounding area, Oregon and Washington.
[Sites are sorted by urban intensity index (UII). Shading indicates sites with UII greater than 25. Abbreviations: SW, southwest; OR, Oregon; WA, Washington]
Site name | UII | Species richness |
Total abundance |
Percent | ||
---|---|---|---|---|---|---|
Dominance | Salmonids | Nonnatives | ||||
Beaverton Creek near SW 216th Avenue near Orenco, OR | 100 | 6 | 361 | 97 | 0 | 1 |
Claggett Creek at Keizer, OR | 100 | 8 | 325 | 79 | 0 | 19 |
Fanno Creek at Durham, OR | 96 | 6 | 586 | 91 | 0 | 0 |
Kellogg Creek at Milwaukie, OR | 88 | 4 | 541 | 90 | 0 | 0 |
Pringle Creek at Salem, OR | 88 | 9 | 600 | 88 | 0 | 0 |
Amazon Creek near Danebo Road at Eugene, OR | 77 | 8 | 597 | 90 | 0 | 98 |
Tryon Creek below Nettle Creek, near Lake Oswego, OR | 72 | 2 | 380 | 98 | 2 | 0 |
Curtin Creek near Vancouver, WA | 69 | 5 | 52 | 79 | 17 | 0 |
Johnson Creek at Circle Avenue, OR | 59 | 8 | 278 | 47 | 0 | 1 |
Battle Creek near Turner, OR | 58 | 5 | 281 | 75 | 0 | 8 |
Rock Creek at Quatama Road near Hillsboro, OR | 51 | 5 | 251 | 98 | 2 | |
Whipple Creek near Salmon Creek, WA | 49 | 3 | 162 | 83 | 0 | 0 |
Chicken Creek near Sherwood, OR | 45 | 4 | 344 | 83 | 0 | 0 |
North Fork Deep Creek at Barton, OR | 39 | 12 | 163 | 20 | 33 | 5 |
Oak Creek at Corvallis, OR | 39 | 4 | 394 | 97 | 0 | 0 |
Tickle Creek near Boring, OR | 32 | 8 | 672 | 77 | 18 | 0 |
Chehalem Creek at Newberg, OR | 29 | 6 | 456 | 88 | 0 | 1 |
Silk Creek near Cottage Grove, OR | 24 | 7 | 217 | 70 | 2 | 0 |
Rock Creek near Battleground, WA | 23 | 6 | 395 | 55 | 25 | 0 |
Salmon Creek near Battleground, WA | 20 | 9 | 183 | 52 | 5 | 0 |
Deep Creek near Sandy, OR | 17 | 8 | 220 | 36 | 25 | 0 |
Nate Creek near Colton, OR | 15 | 4 | 148 | 91 | 7 | 0 |
Milk Creek at Camp Adams, OR | 12 | 11 | 301 | 36 | 6 | 0 |
North Yamhill Creek near Yamhill, OR | 8 | 6 | 189 | 28 | 38 | 0 |
South Scappoose Creek at Scappoose, OR | 8 | 7 | 96 | 44 | 0 | 1 |
Lost Creek near Dexter, OR | 6 | 9 | 253 | 26 | 5 | 0 |
Iler Creek near Forest Grove, OR | 4 | 6 | 150 | 39 | 35 | 0 |
East Fork Dairy Creek near Meacham Corner, OR | 0 | 8 | 639 | 32 | 38 | 0 |
Average of sites greater than UII of 25 | 6 | 379 | 81 | 4 | 8 | |
Average of sites less than UII of 25 | 7 | 254 | 46 | 17 | 0 |