Filters: Tags: PacificCoastRegion (X) > partyWithName: Ricardo McClees-Funinan (X) > partyWithName: Susan M. Stedman (X)
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There are three designated megaregions in the Pacific Coast States: Southern California, with a population of 22.4 million; Northern California, with a population of 14.6 million; and Cascadia (from Vancouver, British Columbia to Eugene, Oregon), with a population of 8.4 million. These areas have enormous effects on both the inland and coastal aquatic habitats. Continual development increases areas of impervious surfaces (completely altering natural water flows and hydrology) and the amount of sewage discharge, sediments, and other pollutants associated with urbanization. Ever increasing urban water needs can be far reaching and affect systems and fish habitat far away from the urban areas. Los Angeles, which is...
Agriculture was highly influential on the fish habitat assessment of the Pacific Coastal States. One of the broadest areas implicated is the California Central Valley that extends 450 miles from Redding to Bakersfield. This region grows a wide variety of row crops and fruit trees and supports abundant cattle and dairy farms. Another region of very high risk is Willamette Valley in Oregon, where crops such as berries, vegetables, sod, and vineyards are grown. Silviculture, particularly large-scale timber clearcuts, is another significant agricultural practice in this area. Also at high risk are aquatic habitats in eastern Washington between Spokane and Walla Walla, where wheat, hay, potatoes and apples are the dominant...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2015,
Agriculture,
HumanActivity,
PacificCoastRegion,
PacificCoastStates
The rivers of the Pacific Coast states are heavily altered by dams and diversions ( over 1,400 dams in California, 1,039 in Oregon, 1,174 in Washington ). The dams generally are used for hydropower generation, irrigation, and transportation, all essential to supporting the region’s extensive agricultural and manufacturing (aluminum, aircraft, shipbuilding) industries. Dams create problems for fish such as salmon and steelhead by interrupting or halting their migration from the Pacific to upstream habitats and killing large numbers of young salmon (smolts) as they move downstream through powerhouses or spillways. Numbers of salmon and steelhead have declined drastically from historic levels, and many populations...
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