|
Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1695327
| OR | Benton | Second slough 1 mile upstream of Hyak Park, west bank | 2021 |
17090003
| Upper Willamette | established |
1418764
| OR | Clackamas | Clackamas River at The Cove | 2017 |
17090011
| Clackamas | established |
1419120
| OR | Clackamas | Unnamed pond on private property | 2017 |
17090007
| Middle Willamette | established |
614619
| OR | Clackamas | Willamette River, below locks | 1998 |
17090007
| Middle Willamette | unknown |
1473596
| OR | Clackamas | Willamette River, near Goat Island | 2018 |
17090007
| Middle Willamette | established |
614606
| OR | Lane | Cottage Grove Reservoir | 1998 |
17090002
| Coast Fork Willamette | unknown |
1695323
| OR | Lane | Dorena Lake at Harms Park | 2021 |
17090002
| Coast Fork Willamette | established |
1695316
| OR | Lane | Dorena Lake near Bluff Creek inlet | 2021 |
17090002
| Coast Fork Willamette | established |
886087
| OR | Lane | Dorena Lake, adjacent to boat ramp and marina | 2015 |
17090002
| Coast Fork Willamette | established |
1633859
| OR | Lane | Dorena Lake, Lane County, Oregon | 2019 |
17090002
| Coast Fork Willamette | established |
1474215
| OR | Linn | South Santiam River arm of Foster Lake | 2018 |
17090006
| South Santiam | established |
1418758
| OR | Marion | In Minto-Brown Island Park, just off the paved pedestrian trail, and then just off a small boardwalk that jets out into the pond/marsh here. | 2017 |
17090007
| Middle Willamette | established |
1418759
| OR | Marion | In Minto-Brown Island Park, just off the paved pedestrian trail, and then just off a small boardwalk that jets out into the pond/marsh here. | 2017 |
17090007
| Middle Willamette | established |
647814
| OR | Marion | Willamette River, in a side slough | 2014 |
17090007
| Middle Willamette | established |
862556
| OR | Marion | Willamette River, in a side slough | 2015 |
17090007
| Middle Willamette | established |
1321242
| OR | Marion | Willamette River, in a side slough | 2016 |
17090007
| Middle Willamette | established |
1613827
| OR | Marion | Willamette River, in a side slough | 2019 |
17090007
| Middle Willamette | established |
1655265
| OR | Marion | Willamette River, in a side slough | 2020 |
17090007
| Middle Willamette | established |
1695338
| OR | Marion | Willamette River, in a side slough | 2021 |
17090007
| Middle Willamette | established |
1736625
| OR | Marion | Willamette River, in a side slough | 2023 |
17090007
| Middle Willamette | |
242989
| OR | Multnomah | Columbia Slough, Incendiary Bridge | 2002 |
17090012
| Lower Willamette | established |
242990
| OR | Multnomah | Columbia Slough, Kelly Point Park | 2002 |
17090012
| Lower Willamette | established |
859145
| OR | Multnomah | Portland | 2013 |
17090012
| Lower Willamette | established |
1703728
| OR | Multnomah | Willamette River | 2022 |
17090012
| Lower Willamette | established |
1417520
| OR | Multnomah | Willamette river down stream of Portland OR | 2017 |
17090012
| Lower Willamette | established |
|