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Chasmistes Brevirostris
The shortnose sucker (''Chasmistes brevirostris''), also known as the :wikt:koptu, koptu (pronounced ) by the Klamath Tribes, is a rare species of fish in the family (biology), family Catostomidae, the suckers. It is native to southern Oregon and northern California in the United States. This species and related ones were a major food source for local Native Americans in the United States, tribes, and are still considered to be sacred animals. It is a federally listed endangered species of the United States. Description Shortnose suckers are uniquely variable in their shape and form, making them easy to mistake for other fish (and have been miss-categorized as unique species more than once). They nevertheless display all the characteristic features of this family as well as unique ones to brevirostris. Morphology Though their appearance can vary, they are generally characterized by a fusiform, cylindrically shaped body. C. brevirostris have relatively large, wide heads, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups within th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. The drainage basin is 35% in Oregon and 65% in California. In Oregon, the watershed typically lies east of the Cascade Range, while California contains most of the river's segment that passes through the mountains. In the Oregon-far northern California segment of the river, the watershed is semi-desert at lower elevations and dry alpine in the upper elevations. In the western part of the basin, in California, however, the climate is more of temperate rainforest, and the Trinity River watershed consists of a more typical alpine climate. Geology and hydrology The Upper Klamath Watershed lies between the Cascade Range and the Basin and Range Province in southern Oregon and northern California. Bedrock s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anoxic Waters
Anoxic waters are areas of sea water, fresh water, or groundwater that are depleted of dissolved oxygen. The US Geological Survey defines anoxic groundwater as those with dissolved oxygen concentration of less than 0.5 milligrams per litre. Anoxic waters can be contrasted with hypoxic waters, which are low (but not lacking) in dissolved oxygen. Often, hypoxia is defined as waters that have less than 2 milligrams per litre of dissolved oxygen. This condition is generally found in areas that have restricted water exchange. In most cases, oxygen is prevented from reaching the deeper levels by a physical barrier, as well as by a pronounced density stratification, in which, for instance, denser, colder or hypersaline waters rest at the bottom of a basin. Anoxic conditions will occur if the rate of oxidation of organic matter by bacteria is greater than the supply of dissolved oxygen. Anoxic waters are a natural phenomenon, and have occurred throughout geological history. The Permia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Droughts In California
The historical and ongoing droughts in California result from various complex meteorological phenomena, some of which are not fully understood by scientists. Drought is generally defined as "a deficiency of precipitation over an extended period of time (usually a season or more), resulting in a water shortage." A lack of rainfall (or snowfall) or precipitation in meager quantities, higher than average temperatures and dry air masses in the atmosphere commonly underlie drought conditions; these natural factors are further complicated by increases in populations and water demands. Since the California water supply is attained from numerous sources, fulfilled by varied and intricate weather patterns, there is no one cause of drought. California is not only the most populous state and largest agricultural producer in the United States, it is also the most biodiverse; as such, drought in California can have a far reaching economic and environmental impacts. There are five major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbidity
Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of both water clarity and water quality. Fluids can contain suspended solid matter consisting of particles of many different sizes. While some suspended material will be large enough and heavy enough to settle rapidly to the bottom of the container if a liquid sample is left to stand (the settable solids), very small particles will settle only very slowly or not at all if the sample is regularly agitated or the particles are colloidal. These small solid particles cause the liquid to appear turbid. Turbidity (or haze) is also applied to transparent solids such as glass or plastic. In plastic production, haze is defined as the percentage of light that is deflected more than 2.5° from the incoming light direction. Causes and effects Turbidity in open water may be ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tule Lake
Tule Lake ( ) is an intermittent lake covering an area of , long and across, in northeastern Siskiyou County and northwestern Modoc County in California, along the border with Oregon. Geography Tule Lake is fed by the Lost River. The elevation of the lake is . It is one of twenty ancient lakes in the world that have existed continuously for more than 1 million years. However, this has recently come under significant threat due to multiple years of drought conditions. Tule Lake is located , southwest of the town of Tulelake in Northern California. Wildlife and water The lake is part of the Tule Lake National Wildlife Refuge and the Klamath Project. Deliveries of water from the Klamath Project have been necessary to provide sufficient water for wildlife. On July 24, 2020, a delivery of water from the Klamath Project saved 50,000 ducklings from death. History Canby's Cross is located about south of the lake; it is the site where General Edward Canby was killed by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klamath Project
The Klamath Project is a water-management project developed by the United States Bureau of Reclamation to supply farmers with irrigation water and farmland in the Klamath Basin. The project also supplies water to the Tule Lake National Wildlife Refuge, and the Lower Klamath National Wildlife Refuge. The project was one of the first to be developed by the Reclamation Service, which later became the Bureau of Reclamation. The two main water supply sources for the project are Upper Klamath Lake and the Klamath River. The main bodies of water in the Klamath Project are Clear Lake Reservoir, Klamath River, Link River, Lost River, Lower Klamath Lake, Tule Lake, and Upper Klamath Lake. The project fills these reservoirs from the spring runoff, peaking generally in March and April, and keeps the runoff from flooding the historical marshes that are a large portion of the present farmland. There are also many minor streams in the area. Lost River historically drained into Tul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerber Reservoir
Gerber Reservoir is an irrigation impoundment created by Gerber Dam. It is located in southern Klamath County, Oregon, Klamath County, Oregon, United States. The reservoir covers . The dam and reservoir are named in honor of Louis C. Gerber, an early pioneer who owned much of the land flooded by the reservoir. Today, the reservoir and surrounding property is owned by the Federal government of the United States, United States Government. It is administered by the Bureau of Reclamation and the Bureau of Land Management. Gerber Reservoir is a popular outdoor recreation site with two campgrounds along its west shore. History Native Americans in the United States, Native Americans occupied sites around what is now Gerber Reservoir for perhaps 6,400 years before the first European settlers arrived in the area. Ancient campsites have been found in the area of Gerber Reservoir. Family bands of Klamath people, Klamath and Modoc people, Modoc peoples used these sites from early sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
