Subsurface upper ocean waters off Oregon and Vancouver Island were about 1° cooler in July 2002 than in July 2001. The anomalously cool layer coincides with the permanent halocline which has salinities of 32.2 to 33.8, suggesting an invasion of nutrient-rich Subarctic waters. The anomalously cool layer lies at 30–150...
The specific habitat requirements of harlequin ducks (Histrionicus histrionicus
Linnaeus 1758), which breed in the Pacific Northwest, are largely unknown. I captured
and attached radio transmitters to 42 female harlequins (36 paired and 6 unpaired) in the
central Cascade Range of Oregon in 1994 and 1995. Breeding pairs used 3rd...
Describes natural resource use in the Yaquina Bay area about 1963. Bay Crab, clam, oyster, salmon, cutthroat trout and bottomfish fisheries are discussed. Touches on jetty fishing, skin and scuba diving, offshore salmon fisheries, underutilized fisheries and waterfowl hunting.
Published May 1987. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Fishes with closed swim bladders regulate buoyancy during depth changes by secreting and
resorbing swim bladder gases. Forced ascent during fishery capture results in barotrauma caused by rapid expansion and exsolution of gases from body fluids. Pressure changes in hyperbaric chambers were used to examine changes in swim bladder integrity...
Published May 1972. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Peppermint was introduced into central Oregon in 1955. (The acreage devoted to this crop has been steadily expanding.) Additional experiments are needed on this crop to determine the effects of fertilizer placement and time of application.
Irrigated pastures are usually composed of a mixture of improved grasses and legumes. Maintaining a proper balance between grasses and legumes is essential to obtain maximum production.
Management is the key to production from irrigated pastures. Proper management of livestock and irrigation water can materially increase pasture production.