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Slough (hydrology)
A slough ( or ) is a wetland, usually a swamp or shallow lake, often a backwater to a larger body of water. Water tends to be stagnant or may flow slowly on a seasonal basis. In North America, "slough" may refer to a side-channel from or feeding a river, or an inlet or natural channel only sporadically filled with water. An example of this is Finn Slough on the Fraser River, whose lower reaches have dozens of notable sloughs. Some sloughs, like Elkhorn Slough, used to be mouths of rivers, but have become stagnant because tectonic activity cut off the river's source. In the Sacramento River, Steamboat Slough was an alternate branch of the river, a preferred shortcut route for steamboats passing between Sacramento and San Francisco. Georgiana Slough was a steamboat route through the Sacramento–San Joaquin River Delta, from the Sacramento River to the San Joaquin River and Stockton. Plants and animals A slough, also called a tidal channel, is a channel in a wetland. Typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elkhorn Slough
Elkhorn Slough is a tidal slough and estuary on Monterey Bay in Monterey County, California. It is California's second largest estuary and the United States' first estuarine sanctuary. The community of Moss Landing and the Moss Landing Power Plant are located at the mouth of the slough on the bay. Elkhorn Slough harbors the largest tract of tidal salt marsh in California outside the San Francisco Bay and provides much-needed habitat for hundreds of species of plants and animals, including more than 340 species of birds. It has been designated as a protected Ramsar site since 2018. History The name of the slough derives from the native tule elk ''Cervus canadensis nannodes'', now extirpated from the region. Elkhorn Slough occupies the western reaches of Elkhorn Valley, a relic river valley eroded by drainage pouring out of the Santa Clara Valley and/or Great Valley of California (before the Golden Gate opened) into Monterey Bay during the early Pleistocene. In the mid-1850s A.D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loup River Slough (7489196746)
Loup (French for wolf) may refer to: Places *The Loup, a village in Northern Ireland * Loup Canal, a canal in Nebraska *Loup County, Nebraska *Loup River, a tributary of the Platte River in Nebraska, USA *Loup (river), a coastal river in southeastern France *Loup Township (other), multiple locations Other *, a 2009 film by Nicolas Vanier *Loup (card game), an historic card game variant of Tippen *Loup (name), French given name and surname *"Loup (1st Indian on the Moon)", a song by Paul McCartney and Wings from the 1973 album ''Red Rose Speedway'' *Saint Lupus (other) (Saint Loup), the name of some early French bishops *Loup language, an extinct Algonquian language *Archaic blazon for wolf (heraldry) *Loup, a character in the webcomic ''Gunnerkrigg Court'' See also *Loup Loup (other) *Loop (other) *Loupe A loupe ( ) is a simple, small magnification device used to see small details more closely. They generally have higher magnification than a m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgiana Slough
Georgiana Slough, is a slough within Sacramento County, California. It is located in the Sacramento–San Joaquin River Delta, and links both the Sacramento River and the San Joaquin River above their confluence in the Delta near Pittsburg, at the head of Suisun Bay, through its connection with the Mokelumne River. The entrance to the slough on the Sacramento River is just below Walnut Grove, at and runs between Tyler Island and Andrus Island to where it has its confluence with the Mokelumne River at northwest of Bouldin Island just above that rivers confluence with the San Joaquin River. History Georgiana Slough was first used by steamboats in the 19th century as a shortcut between Sacramento ) , image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg , mapsize = 250x200px , map_caption = Location within Sacramento ... and Stockton. It is named after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosquitofish
The western Mosquitofish (''Gambusia affinis'') is a North American freshwater fish, also known commonly, if ambiguously, as simply Mosquitofish or by its generic name, ''Gambusia'', or by the common name gambezi. Its sister species, the eastern mosquitofish (''Gambusia holbrooki'') is also referred to by these names. Mosquitofish are small in comparison to many other freshwater fish, with females reaching a maximum length of and males a maximum length of . The female can be distinguished from the male by her larger size and a gravid spot at the posterior of her abdomen. The name "Mosquitofish" was given because the fish eats mosquito larvae, and has been used more than any other fishes for the biological control of mosquitoes. Gambusia typically eat zooplankton, beetles, mayflies, caddisflies, mites, and other invertebrates; mosquito larvae make up only a small portion of their diet. Mosquitofish were introduced directly into ecosystems in many parts of the world as a biocon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Killifish
A killifish is any of various oviparous (egg-laying) cyprinodontiform fish (including families Aplocheilidae, Cyprinodontidae, Fundulidae, Profundulidae and Valenciidae). All together, there are 1,270 species of killifish, the biggest family being Rivulidae, containing more than 320 species. As an adaptation to living in ephemeral waters, the eggs of most killifish can survive periods of partial dehydration. Many of the species rely on such a diapause, since the eggs would not survive more than a few weeks if entirely submerged in water. The adults of some species, such as ''Kryptolebias marmoratus'', can additionally survive out of the water for several weeks. Most killies are small fish, from , with the largest species growing to just under . The word ''killifish'' is of uncertain origin, but is likely to have come from the Dutch ''kil'' for a kill (small stream). Although ''killifish'' is sometimes used as an English equivalent to the taxonomical term ''Cyprinodontidae'', s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidewater Goby
''Eucyclogobius newberryi'', the Northern tidewater goby, is a species of goby native to lagoons of streams, marshes, and creeks along the coast of California, United States. The Northern tidewater goby is one of six native goby species to California. Etymology The genus name translates as "true cycloid goby", referring to the scales, while the species epithet is in honor of J. S. Newberry (1822-1892), an American geologist, physician and explorer, who collected fishes for the species describer, Charles Frédéric Girard, just not this species. Description A small fish, only rarely longer than 5 cm (2 in), the northern tidewater goby is elongate with a blunt tail. Color is a mottled gray, brown, or olive; living fish are translucent or mostly transparent. Tidewater gobies, like many fish, exhibit countershading and tend to be mottled slightly darker on the dorsal side. The upper part of the first dorsal fin is clear or cream-colored, while the second dorsal is longer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladium
''Cladium'' (fen-sedge, sawgrass or twig-sedge) is a genus of large sedges, with a nearly worldwide distribution in tropical and temperate regions. These are plants characterized by long, narrow (grass-like) leaves having sharp, often serrated (sawtooth-like) margins, and flowering stems 1–3 m tall bearing a much-branched inflorescence. Like many plants found in wet habitats, it has deeply buried rhizomes that can produce tall shoots with dense canopies. ''Cladium mariscus ''subsp.'' jamaicense'', or saw-grass, is common in marshes and savannas throughout the tropical Americas. One typical and well-known area of extensive saw-grass growth is the Florida Everglades; sawgrass is the plant referred to by the descriptor, "River of Grass". Like many species of the Everglades, ''C. jamaicense'' grows in extremely infertile conditions, particularly wet sites that are low in phosphorus. Dense sawgrass beds are intermingled with other vegetation types. Together they produce a rich arr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periphyton
Periphyton is a complex mixture of algae, cyanobacteria, heterotrophic microbes, and detritus that is attached to submerged surfaces in most aquatic ecosystems. The related term Aufwuchs (German "surface growth" or "overgrowth") refers to the collection of small animals and plants that adhere to open surfaces in aquatic environments, such as parts of rooted plants. Periphyton serves as an important food source for invertebrates, tadpoles, and some fish. It can also absorb contaminants, removing them from the water column and limiting their movement through the environment. The periphyton is also an important indicator of water quality; responses of this community to pollutants can be measured at a variety of scales representing physiological to community-level changes. Periphyton has often been used as an experimental system in, e.g., pollution-induced community tolerance studies. Composition In both marine and freshwater environments, algae – particularly green algae and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California Natural Reserve System
The University of California Natural Reserve System (UCNRS) is a system of protected areas throughout California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori .... List of reserves References *Harrison, S., Waddell, S. M. and Boucher, V. L. 2004. UC Davis Natural Reserve System-Four-Year Report (1999-2003)' . UC Davis Natural Reserve System. *Herring, Margaret. 2000Studying Nature in Nature: The History of the University of California Natural Reserve System. Reprinted from ''Chronicle of the University of California'', No. 3 (Spring 2000). * External links *UC Office of Research and Graduate Studies [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salinity
Salinity () is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal to ‰). Salinity is an important factor in determining many aspects of the chemistry of natural waters and of biological processes within it, and is a thermodynamic state variable that, along with temperature and pressure, governs physical characteristics like the density and heat capacity of the water. A contour line of constant salinity is called an ''isohaline'', or sometimes ''isohale''. Definitions Salinity in rivers, lakes, and the ocean is conceptually simple, but technically challenging to define and measure precisely. Conceptually the salinity is the quantity of dissolved salt content of the water. Salts are compounds like sodium chloride, magnesium sulfate, potassium nitrate, and sodium bicarbonate which dissolve into ions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Wetland Scientists
The Society of Wetland Scientists (SWS) is an international, professional non-profit organization devoted to promoting understanding, conservation, protection, restoration, science-based management, and sustainability of wetlands. Society membership is open to anyone with an interest in wetlands. Based in Madison, Wisconsin, United States, it has 3000+ members worldwide. SWS has sixteen regional chapters around the world: Alaska, Asia, Canada, Central, China, Europe, International, Mid-Atlantic, New England, North Central, Oceania, Pacific Northwest, Rocky Mountain, South Atlantic, South Central, and Western. SWS has nine sections that organize symposia and workshops for the SWS Annual Meeting: Biogeochemistry, Education, Global Change Ecology, Peatlands, Public Policy and Regulation, Ramsar, Wildlife, Wetland Restoration, and Women in Wetlands. SWS has been managed by an association management company, AMPED Association Management, since 2010. SWS is associated with the SWS Prof ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Of Field
The depth of field (DOF) is the distance between the nearest and the furthest objects that are in acceptably sharp focus in an image captured with a camera. Factors affecting depth of field For cameras that can only focus on one object distance at a time, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus. "Acceptably sharp focus" is defined using a property called the "circle of confusion". The depth of field can be determined by focal length, distance to subject, the acceptable circle of confusion size, and aperture. Limitations of depth of field can sometimes be overcome with various techniques and equipment. The approximate depth of field can be given by: : \text \approx \frac for a given circle of confusion (c), focal length (f), f-number (N), and distance to subject (u). As distance or the size of the acceptable circle of confusion increases, the depth of field increases; however, increasing the size of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
