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Alosidae
The Alosidae, or the shads, are a family of clupeiform fishes. The family currently comprises four genera worldwide, and about 34 species. The shads are pelagic (open water) schooling fish, of which many are anadromous or even landlocked. Several species are of commercial importance, e.g. in the genus ''Alosa ''Alosa'' is a genus of fish, the river herrings, in the family (biology), family Clupeidae. Along with other genera in the subfamily Alosinae, they are generally known as shads. Sardina''. The Alosidae were previously included in the herring family Clupeidae. See also *The Shad Foundation">Clupeidae">European pilchard">Sardina''. The Alosidae were previously included in the herring family Clupeidae. See also *The Shad Foundation *Shad Planking, a Virginia political gathering featuring the consumption of American shad References {{Taxonbar, from=Q2650600 Alosinae, Ray-finned fish families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Twaite Shad
The twait shad or twaite shad (''Alosa fallax'') is a species of fish in the family Clupeidae. It is found in the eastern Atlantic Ocean and the Mediterranean Sea and is an anadromous fish which lives in the sea but migrates into fresh water to spawn. In appearance it resembles an Atlantic herring but has a row of six to ten distinctive spots on its silvery flanks. They become mature when three or more years old and migrate to estuaries, later swimming up rivers to spawn. Populations of this fish have declined due to overfishing, pollution and habitat destruction. Conservation of this species is covered by Appendix III of the Bern Convention and Appendix II and V of the European Community Habitats Directive. Description The twait shad is a typical herring-type fish and much resembles the allis shad. It has no lateral line and the belly is more rounded than that of the sprat and Baltic herring. The gill cover is ridged and the caudal peduncle has large, plate-like scales. This f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clupeiform
Clupeiformes is the order of ray-finned fish that includes the herring family, Clupeidae, and the anchovy family, Engraulidae. The group includes many of the most important forage and food fish. Clupeiformes are physostomes, which means that their gas bladder has a pneumatic duct connecting it to the gut. They typically lack a lateral line, but still have the eyes, fins and scales that are common to most fish, though not all fish have these attributes. They are generally silvery fish with streamlined, spindle-shaped, bodies, and they often school. Most species eat plankton which they filter from the water with their gill rakers. The former order of Isospondyli was subsumed mostly by Clupeiformes, but some isospondylous fishes (isospondyls) were assigned to Osteoglossiformes, Salmoniformes, Cetomimiformes, etc. Families The order includes about 405 species in seven families: * Order Clupeiformes ** Suborder Denticipitoidei *** Family Denticipitidae (denticle herring) ** Sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Shad
The American shad (''Alosa sapidissima'') is a species of anadromous clupeid fish naturally distributed on the North American coast of the North Atlantic, from Newfoundland to Florida, and as an introduced species on the North Pacific coast. The American shad is not closely related to the other North American shads. Rather, it seems to form a lineage that diverged from a common ancestor of the European taxa before these diversified. The American shad has been described as "the fish that fed the (American) nation's founders". Adult shad weigh between , and they have a delicate flavor when cooked. It is considered flavorful enough to not require sauces, herbs, or spices. It can be boiled, filleted and fried in butter, or baked. Traditionally, a little vinegar is sprinkled over it on the plate. In the Eastern United States, roe shads (females) are prized because the eggs are considered a delicacy. The name "shad" derives from the Old English ''sceadd'', meaning "herring"; it is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shad Planking
The Shad Planking is an annual political event in Virginia which takes place every April near Wakefield in Sussex County. It is sponsored by a chapter of the Ruritans, a community service organization which was founded in the small town of Holland about 30 miles to the southeast. Ostensibly an event to celebrate the James River running of shad, at a shad planking, the oily, bony fish are smoked for the occasion on wood planks over an open flame. The events held near Wakefield began after World War II, and were long a function of the state's Conservative Democrats, whose political machine dominated Virginia politics for about 80 years from the late 19th century until the 1960s. However, both Virginia and the Shad Planking had evolved into a more bipartisan environment by the 1980s. In modern times, would-be candidates, reporters, campaign workers, and locals gather to eat shad, drink beer, smoke tobacco, and kick off the state's electoral season with lighthearted speeches by pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Shad Foundation
The Shad Foundation is an international non-profit 501(c)(3) organization established in 1996 for the study, protection, and celebration of shads around the world. Currently, there are more than 30 recognized shad species worldwide. tp://ftp.fao.org/docrep/fao/009/ac482e/ac482e27.pdf Vol.7. Clupeoid fishes of the world (Suborder Clupeoidei) by Peter J.P. Whitehead/ref> Shad, which are members of the herring family, are widely distributed, and many are anadromous, meaning that they migrate from fresh to salt water as juveniles and return to freshwater for the express purpose of spawning. Many species are threatened by water pollution, overfishing, habitat destruction, and obstacles to migration, such as dams. How it started In the summer of 1995, Rich Hinrichsen and Curtis Ebbesmeyer peered into a fish ladder through an algae-stained window, hoping to witness a great biologic event: the return of the Columbia River's Pacific salmon. The fish ladders at Bonneville Dam were in fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clupeidae
Clupeidae is a family of ray-finned fishes, comprising, for instance, the herrings, shads, sardines, hilsa, and menhadens. The clupeoids include many of the most important food fishes in the world, and are also commonly caught for production of fish oil and fish meal. Many members of the family have a body protected with shiny cycloid (very smooth and uniform) scales, a single dorsal fin, and a fusiform body for quick, evasive swimming and pursuit of prey composed of small planktonic animals. Due to their small size and position in the lower trophic level of many marine food webs, the levels of methylmercury they bioaccumulate are very low, reducing the risk of mercury poisoning when consumed. Description and biology Clupeids are mostly marine forage fish, although a few species are found in fresh water. No species has scales on the head, and some are entirely scaleless. The lateral line is short or absent, and the teeth are unusually small where they are present at all. Clupe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anadromous
Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres. Such migrations are usually done for better feeding or to reproduce, but in other cases the reasons are unclear. Fish migrations involve movements of schools of fish on a scale and duration larger than those arising during normal daily activities. Some particular types of migration are ''anadromous'', in which adult fish live in the sea and migrate into fresh water to spawn; and ''catadromous'', in which adult fish live in fresh water and migrate into salt water to spawn. Marine forage fish often make large migrations between their spawning, feeding and nursery grounds. Movements are associated with ocean currents and with the availability of food in different areas at different times of year. The migratory movements ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagic Fish
Pelagic fish live in the pelagic zone of ocean or lake waters—being neither close to the bottom nor near the shore—in contrast with demersal fish that do live on or near the bottom, and reef fish that are associated with coral reefs. The marine pelagic environment is the largest aquatic habitat on Earth, occupying 1,370 million cubic kilometres (330 million cubic miles), and is the habitat for 11% of known fish species. The oceans have a mean depth of . About 98% of the total water volume is below , and 75% is below . Moyle and Cech, p. 585 Marine pelagic fish can be divided into coastal (inshore) fish and oceanic (offshore) fish. Coastal pelagic fish inhabit the relatively shallow and sunlit waters above the continental shelf, while oceanic pelagic fish inhabit the vast and deep waters beyond the continental shelf (even though they also may swim inshore). Pelagic fish range in size from small coastal forage fish, such as herrings and sardines, to large apex pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alosa Fallax
The twait shad or twaite shad (''Alosa fallax'') is a species of fish in the family Clupeidae. It is found in the eastern Atlantic Ocean and the Mediterranean Sea and is an anadromous fish which lives in the sea but migrates into fresh water to spawn. In appearance it resembles an Atlantic herring but has a row of six to ten distinctive spots on its silvery flanks. They become mature when three or more years old and migrate to estuaries, later swimming up rivers to spawn. Populations of this fish have declined due to overfishing, pollution and habitat destruction. Conservation of this species is covered by Appendix III of the Bern Convention and Appendix II and V of the European Community Habitats Directive. Description The twait shad is a typical herring-type fish and much resembles the allis shad. It has no lateral line and the belly is more rounded than that of the sprat and Baltic herring. The gill cover is ridged and the caudal peduncle has large, plate-like scales. This f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNDP
The United Nations Development Programme (UNDP)french: Programme des Nations unies pour le développement, PNUD is a United Nations agency tasked with helping countries eliminate poverty and achieve sustainable economic growth and human development. Headquartered in New York City, it is the largest UN development aid agency, with offices in 170 countries. The UNDP emphasizes developing local capacity towards long-term self-sufficiency and prosperity. It administers projects to attract investment, technical training, and technological development, and provides experts to help build legal and political institutions and expand the private sector. The UNDP operates in 177 countries and is funded entirely by voluntary contributions from UN member states. Also, UNDP is governed by a 36-member executive board overseen by an administrator, who is third-highest ranking UN official after the Secretary-General and Deputy Secretary-General. Founding The UNDP was founded on 22 Nove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' by the American ichthyologist Joseph S. Nelson (1937–2011) is a standard reference for fish systematics. Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family (biology), family gets at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, while the book generally does not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not involve color illustrations. The fourth edition was the first to incorporate the wide use of DNA analy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
