|
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. Ty ... [...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), a 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 languages, a group of extinct Algonquian languages as attested in manuscripts of French missionaries *Archaic blazon for wolf (heraldry) *Loup, a character in the webcomic '' Gunnerkrigg Court'' See also * Loup Loup (other) * Loop (other) *Loupe, a magnification device *Wolf (other) The wolf (''Canis lupus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of 2024, San Francisco is the List of California cities by population, fourth-most populous city in the U.S. state of California and the List of United States cities by population, 17th-most populous in the United States. San Francisco has a land area of at the upper end of the San Francisco Peninsula and is the County statistics of the United States, fifth-most densely populated U.S. county. Among U.S. cities proper with over 250,000 residents, San Francisco is ranked first by per capita income and sixth by aggregate income as of 2023. San Francisco anchors the Metropolitan statistical area#United States, 13th-most populous metropolitan statistical area in the U.S., with almost 4.6 million residents in 2023. The larger San Francisco Bay Area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Killifish
A killifish is any of various oviparous (egg-laying) cyprinodontiform fish, including families Aplocheilidae, Pantanodontidae, Cyprinodontidae, Fundulidae, Nothobranchiidae, Profundulidae, Aphaniidae 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 killifish are small, measuring 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 eq ... [...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 of California. It is protected under the Endangered Species Act as an endangered species of the United States since 1994. 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 do ... [...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 a ... [...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. The reserves support UC's mission of teaching, research, and public service. Unlike national and state parks, they are not available for recreational uses, because they were specifically created to enable UC scientists to conduct research free from such distractions. The system began with UC Berkeley zoology professor Joseph Grinnell. In 1937, near the end of his career, Grinnell began to work on a proposal to establish UC's first wildland field station for zoology teaching and research. He had initially looked to the U.S. national parks for research sites, but became frustrated with the National Park Service and how its other priorities often got in the way of his priorities. Grinnell became convinced that only a natural reserve owned by the university itself "would provide the permanent protection necessary for long-term teaching, research, and monitoring of Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salinity
Salinity () is the saltiness or amount of salt (chemistry), 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 per mille, ‰). Salinity is an important factor in determining many aspects of the chemistry of natural waters and of biological processes within it, and is a state function, 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 sod ... [...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 whose mission is to promote best practices in wetland research, education, conservation, preservation, restoration, and management. The SWS vision is to ensure that wetlands are understood, their importance recognized, and sound wetland science is used as a guide for wetland professionals and the general public to collaborate on research, conservation, preservation, restoration, and management of wetlands in our changing environment. Based in Washington, DC, United States, SWS has 3000+ members worldwide, and the membership is open to anyone with an interest in wetlands. SWS has fifteen regional chapters around the world: 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 ten sections that organize symposia and workshops for the SWS Annual Meeti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Of Field
The depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus (optics), focus in an image captured with a camera. See also the closely related depth of focus. 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 in the image. "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 (object to be imaged), 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 maximum acceptable circle of confusion , focal length , f-number , and distance to subject . As distance or the size of the acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prentice Hall
Prentice Hall was a major American publishing#Textbook_publishing, educational publisher. It published print and digital content for the 6–12 and higher-education market. It was an independent company throughout the bulk of the twentieth century. In its last few years it was owned by, then absorbed into, Savvas Learning Company. In the Web era, it distributed its technical titles through the Safari Books Online e-reference service for some years. History On October 13, 1913, law professor Charles Gerstenberg and his student Richard Ettinger founded Prentice Hall. Gerstenberg and Ettinger took their mothers' maiden names, Prentice and Hall, to name their new company. At the time the name was usually styled as Prentice-Hall (as seen for example on many title pages), per an orthographic norm for Dash#Relationships and connections, coordinate elements within such compounds (compare also ''McGraw-Hill'' with later styling as ''McGraw Hill''). Prentice-Hall became known as a publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockton, California
Stockton is a city in and the county seat of San Joaquin County, California, San Joaquin County in the Central Valley (California), Central Valley of the U.S. state of California. It is the most populous city in the county, the List of municipalities in California, 11th-most populous city in California and the List of United States cities by population, 60th-most populous city in the United States. Stockton's population in 2020 was 320,804. It was named an All-America City Award, All-America City in 1999, 2004, 2015, and again in 2017 and 2018. The city is located on the San Joaquin River in the northern San Joaquin Valley. It lies at the southeastern corner of a Sacramento–San Joaquin River Delta, large inland river delta that isolates it from other nearby cities such as Sacramento and those of the San Francisco Bay Area. Stockton was founded by Charles Maria Weber in 1849 after he acquired Rancho Campo de los Franceses. The city is named after Robert F. Stockton, and it was t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
