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For other uses, see Trout (disambiguation).
Rainbow trout, Oncorhynchus mykiss
Rainbow trout, Oncorhynchus mykiss
Biwa trout (or Biwa salmon), Oncorhynchus masou rhodurus
Biwa trout (or Biwa salmon), Oncorhynchus masou rhodurus

Trout is the common name given to a number of species of freshwater fish belonging to the Salmonidae family. The Biwa trout or Biwa salmon, Oncorhynchus masou rhodurus, is an Anadromous Fish in the Salmon family. In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. Freshwater is a word that refers to bodies of water such as Ponds lakes rivers and streams containing low concentrations of dissolved Salts and other Total dissolved Fish are aquatic Vertebrate animals that are typically ectothermic (previously Cold-blooded) covered with scales, and equipped with two Salmonidae is a family of Ray-finned fish, the only living family of the order Salmoniformes.

All fish called trout are members of the subfamily Salmoninae. In Biological classification, family ( Latin The name is commonly used for species in three of the seven genera in the sub-family: Salmo,Atlantic species; Salvelinus,which includes fish also sometimes called char or charr. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic See Salmo British Columbia for the Canadian village of the same name Salvelinus is a Genus of salmonid Fish, often called char or charr; many of the fish called " Trouts quot also Pacific species; Oncorhynchus, Fish referred to as trout include:

Trout are usually found in cool (50 -60 degrees), clear streams and lakes, although many of the species have anadromous strains as well. Salvelinus is a Genus of salmonid Fish, often called char or charr; many of the fish called " Trouts quot also Arctic char or Arctic charr ( Salvelinus alpinus) is both a Freshwater and saltwater Fish in the Salmonidae family The aurora trout, Salvelinus fontinalis timagamiensis, is a subspecies of the Brook trout. The brook trout, Salvelinus fontinalis, (sometimes called the eastern brook trout, Adirondack coaster lake trout) is a Species of Fish For the other subspecies see Southern Dolly Varden and Salvelinus malma miyabei. Lake trout ( Salvelinus namaycush) is a freshwater char living mainly in Lakes in northern North America. The name "silver trout" is also sometimes used for Rainbow trout. Many types of fish undertake migrations on a regular basis on time scales ranging from daily to annual and with distances ranging from a few meters to thousands of kilometers Young trout are referred to as troutlet or troutling. They are distributed naturally throughout North America, northern Asia and Europe. Several species of trout were introduced to Australia and New Zealand by amateur fishing enthusiasts in the 19th century, effectively displacing and endangering several upland native fish species. The 19th century of the Common Era began on January 1, 1801 and ended on December 31, 1900, according to the Gregorian calendar In studies of the Ecology of Freshwater Rivers habitats are classified as upland and lowland. The introduced species included brown trout from England and rainbow trout from California. The rainbow trout were a steelhead strain, generally accepted as coming from Sonoma Creek. The rainbow trout of New Zealand still show the steelhead tendency to run up rivers in winter to spawn. The speckled trout, a very famous trout is found in the Gulf of Mexico, and in many other places in the United States.

Trout have fins entirely without spines, and all of them have a small adipose (fatty) fin along the back, near the tail! There are many species, and even more populations that are isolated from each other and morphologically different. "Adipose" redirects here For the Doctor Who monster see " Partners in Crime " However, since many of these distinct populations show no significant genetic differences, what may appear to be a large number of species is considered a much smaller number of distinct species by most ichthyologists. Ichthyology (from Greek ἰχθυ ikhthu, "fish" and λόγος logos, "knowledge" is the branch of Zoology devoted to the study

The trout found in the eastern United States are a good example of this. The United States of America —commonly referred to as the The brook trout, the aurora trout, and the (extinct) silver trout all have physical characteristics and colorations that distinguish them, yet genetic analysis shows that they are one species, Salvelinus fontinalis. History See also History of genetics The existence of genes was first suggested by Gregor Mendel (1822-1884 who in the 1860s studied inheritance

Lake trout (Salvelinus namaycush), like brook trout, actually belong to the char genus. Lake trout inhabit many of the larger lakes in North America, and live much longer than rainbow trout, which have an average maximum lifespan of 7 years. Lake trout can live many decades, and can grow to more than 30 kg (66 pounds).

Rainbow trout, Oncorhynchus mykiss
Rainbow trout, Oncorhynchus mykiss

Trout generally feed on soft bodied aquatic invertebrates, such as flies, mayflies, caddisflies, stoneflies, and dragonflies. An invertebrate is an Animal lacking a Vertebral column. The group includes 98% of all animal Species — all animals except those in the Chordate True flies are Insects of the Order Diptera ( Greek: di = two and pteron = wing possessing a single pair of Mayflies are Insects which belong to the Order Ephemeroptera (from the Greek ephemeros = "short-lived" pteron Caddisflies, sedge-flies or rail flies (Order Trichoptera, from Greek trich, "hair" and ptera, "wings" Plecoptera are an order of Insects commonly known as stoneflies. Odonata is an order of Insects encompassing dragonflies (Anisoptera and damselflies (Zygoptera In lakes, various species of zooplankton often form a large part of the diet. Plankton consist of any drifting Organisms ( Animals Plants Archaea, or Bacteria) that inhabit the Pelagic zone of In general, trout longer than about 30 cm prey almost exclusively on fish, where they are available. A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth Adult trout will devour fish exceeding 1/3 their length.

As a group, trout are somewhat bony, but the flesh is generally considered to be appetizing. Additionally, they provide a good fight when caught with a hook and line, and are sought after recreationally. A fish hook is a device for catching Fish either by impaling them in the mouth or more rarely by snagging the body of the fish A fishing line is a cord used or made for Fishing. Important parameters of a fishing line are its length material and weight (thicker sturdier lines are more visible to fish Recreational fishing, also called sport fishing, is Fishing for Pleasure or Competition. Because of their popularity, trout are often raised on fish farms and planted into heavily fished waters, in an effort to mask the effects of overfishing. Fish farming is the principal form of Aquaculture, while other methods may fall under Mariculture. Overfishing occurs when Fishing activities reduce fish stocks below an acceptable level While they can be caught with a normal rod and reel, fly fishing is a distinctive method developed primarily for trout, and now extended to other species. A fishing reel is a device used for the deployment and retrieval of Fishing line using a spool mounted on an Axle. Fly fishing is a distinct and ancient Angling method most renowned as a method for catching Trout and Salmon, but employed today for a wide variety of Farmed trout and char are also sold commercially as food fish. Seafood is any Sea Animal or Seaweed that is served as Food, or is suitable for eating particularly saltwater animals such

Trout that live in different environments can have dramatically different colorations and patterns. Mostly, these colors and patterns form as camouflage, based on the surroundings, and will change as the fish moves to different habitats. Camouflage is a method of cryptic or concealing coloration that allows an otherwise visible Organism Trout in, or newly returned from the sea, can look very silvery, while the same "genetic" fish living in a small stream or in an alpine lake could have pronounced markings and more vivid coloration. It is virtually impossible to define a particular color pattern as belonging to a specific breed; however, in general, wild fish are claimed to have more vivid colors and patterns.

Golden trout, Oncorhynchus aguabonita
Golden trout, Oncorhynchus aguabonita

The cutthroat trout has 14 recognized subspecies (depending on your sources), such as the Lahontan cutthroat trout, Oncorhynchus clarki henshawi, Bonneville cutthroat trout, Oncorhynchus clarki utah, Colorado River cutthroat trout, Yellowstone cutthroat trout. Lahontan cutthroat trout ( Oncorhynchus clarki henshawi) is the largest Cutthroat trout Subspecies, and the state fish of Nevada Lahontan cutthroat trout ( Oncorhynchus clarki henshawi) is the largest Cutthroat trout Subspecies, and the state fish of Nevada The Bonneville cutthroat trout ( Oncorhynchus clarki utah) is a Subspecies of Cutthroat trout that once inhabited the Late Pleistocene -aged The Bonneville cutthroat trout ( Oncorhynchus clarki utah) is a Subspecies of Cutthroat trout that once inhabited the Late Pleistocene -aged The Colorado River cutthroat trout ( Oncorhynchus clarki pleuriticus) is a subspecies of Trout native only to the Green and Colorado River basins See also Cutthroat Trout The Yellowstone cutthroat trout ( Oncorhynchus clarki bouvieri)is a subspecies of the Cutthroat trout ( Oncorhynchus

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External links

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