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- Fish hatcheries -- Oregon -- McKenzie River (1)
- Fish stocking -- Oregon -- McKenzie River (1)
- Floodplain management -- Oregon -- Troutdale (1)
- Hatchery fishes (1)
- Hatchery releases (1)
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- Nest building (1)
- Rainbow trout -- Oregon -- McKenzie River -- Management (1)
- Sandy River Watershed (Or) (1)
- Trout Unlimited (1)
- Turtles -- Nests -- Effect of human beings on (1)
- Turtles -- Nests -- Oregon -- Willamette River Watershed (1)
- Western painted turtle -- Conservation -- Oregon – Troutdale (1)
- Western painted turtle -- Habitat -- Oregon -- Troutdale (1)
Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale, Oregon, Emma Scott
Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale, Oregon, Emma Scott
Environmental Science and Management Professional Master's Project Reports
This management plan has been prepared for the Lower Columbia Estuary Partnership and is intended to provide guidance for the improvement and protection of western painted turtle (Chrysemys picta bellii) habitat at the Sandy River Delta in Troutdale, Oregon. The Sandy River Delta is a 1500-acre natural area situated where the Columbia and Sandy Rivers meet. Its dynamic floodplain habitat supports a diverse assemblage of species, including the western painted turtle, an Oregon Conservation Strategy Species. A small, unknown number of western painted turtles utilize the wetland habitats of the Sandy River Delta, and the frequency in observations …
An Examination Of Limiting Factors Of Chrysemys Picta Bellii (Western Painted Turtles) In The Lower Willamette River Basin, Oregon, James P. Holley
An Examination Of Limiting Factors Of Chrysemys Picta Bellii (Western Painted Turtles) In The Lower Willamette River Basin, Oregon, James P. Holley
Environmental Science and Management Professional Master's Project Reports
Oregon’s two native freshwater turtle species, Chrysemys picta bellii (Western painted turtle) and Actinemys marmorata (Northwestern pond turtle), have seen significantly reduced population sizes since the founding of Portland in 1845, with estimates of up to 90% for A. marmorata. This project examined turtle nesting activity at 25 sites across a range of turtle populations and habitats around the Lower Willamette River Basin. All discovered turtle nesting activity was found in areas of high solar exposure. We found 93% of over 400 nest attempts to have been depredated across the 25 sites, well above most other reported rates. At …
Policy Analysis For Optimizing Native Fisheries On The Mckenzie River, Mary Ray
Policy Analysis For Optimizing Native Fisheries On The Mckenzie River, Mary Ray
Environmental Science and Management Professional Master's Project Reports
The impact of hatchery fish on native populations has been extensively studied, especially as environmental management has generally moved toward a conservation focus. In Oregon, the McKenzie River native rainbow trout population has been the focus of recent interest groups attempting to induce a change in management practices to support native fisheries. The McKenzie River Chapter of Trout Unlimited is interested in learning more about the impacts that hatchery stocked rainbow trout have on native river populations. It is the group's intent to seek a rule change to management by the Oregon Department of Fish and Wildlife. A review of …