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Consequently, during seasonal periods of downwelling when less ocean water is mixed into the estuary, local nitrate concentrations may be very low. [8] [22] Thus, nutrient cycling and primary production in the estuary are heavily linked with the seasonal winds off the Oregon and Washington coasts that control local ocean upwelling and ...
Cooper Creek Reservoir is a body of water behind an earthen dam across Cooper Creek in the Umpqua River basin of the U.S. state of Oregon. The reservoir is in Douglas County, about 2 miles (3 km) east of Sutherlin and about 11 miles (18 km) north of Roseburg. [1] The impoundment provides part of Sutherlin's drinking water. [4]
The Oregon Water Resources Department (WRD) is the chief regulatory agency of the government of the U.S. state of Oregon responsible for management of all surface and ground water in the state, which by statute belongs to the public. The department’s primary activities include protection of existing water rights, facilitation of voluntary ...
[10] [31] Eelgrass beds are a vital habitat to many species of invertebrates. Additionally, the eelgrass affects the flow of water through the area, stabilizes the sediment, exchanges nutrients between the water column and sediments, and is a source of food for consumers. [4]
The Bull Run River is a 21.9-mile (35.2 km) tributary of the Sandy River in the U.S. state of Oregon.Beginning at the lower end of Bull Run Lake in the Cascade Range, it flows generally west through the Bull Run Watershed Management Unit (BRWMU), a restricted area meant to protect the river and its tributaries from contamination.
Klamath Basin. The Klamath Basin is the region in the U.S. states of Oregon and California drained by the Klamath River.It contains most of Klamath County and parts of Lake and Jackson counties in Oregon, and parts of Del Norte, Humboldt, Modoc, Siskiyou, and Trinity counties in California.
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During spring, a coastal upwelling jet is located inshore of Heceta Bank and moves offshore during summer. [31] Two immediate consequences of the invasion of subarctic water off Oregon are an increase in primary production and an increase in water column and benthic respiration. [27]