Brook trout live 3 to 6 years, brown trout live up to 20 years, lake trout live 20 or more years, and rainbow trout live a maximum of about 11 years. "Synonyms of Salmo trutta Linnaeus, 1758", "Global Invasive Species Database-Salmo trutta-Distribution", "Climate Change and Freshwater". Brown trout were widely stocked in the first half of this century, but today most come from natural reproduction. A trout should be preferably starved before storing as in this way it will not have to be gutted, but if the fish is not starved, then it should be gutted and washed properly before storing. Trout have a diverse diet they follow; they have plenty of different oppositions. [6] What determines whether or not they migrate remains unknown. Defining characteristics include a slender, reddish-brown body with a long, narrow head. Runs are deeper than riffles with a moderate current and are found between riffles and pools. S. trutta morpha fario prefers well-oxygenated water in the temperature range of 60 to 65F (16 to 18C). Just about all The specific epithet trutta derives from the Latin trutta, meaning, literally, "trout". Brown trout can be very long-lived. Scottish and Irish sea trout populations in recent years have seriously declined, possibly due to infestation by sea lice from salmon farms.[25]. Within the US, brown trout introductions have created self-sustaining fisheries throughout the country. Brown trout [26] The Treatyse of Fysshynge with an Angle (1496) by Dame Juliana Berners, O.S.B is considered a foundational work in the history of recreational fishing, especially fly fishing. The brown trout (Salmo trutta) is a European species of salmonid fish that has been widely introduced into suitable environments globally. What Do They Eat? 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. The bottom is made up of small gravel or rubble. They can grow as long as 30 inches and weigh over 15 pounds, but most of them will run from seven to ten pounds. S. t. lacustris reaches an average length of 4080cm (1631in) with a maximum length of 140cm (55in) and about 60 pounds (27kg). 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. Salmo lacustris was used for lake-dwelling forms. Linnaeus also described two other brown trout species in 1758. Brown bears lifespan. Trout prefer cold water (50-60 F) streams to spawn and live, but warming water temperatures are altering this ecosystem and further deteriorative native populations. [18] These shifts in the diet during fish lifecycle transitions may be accompanied by a marked reduction in intraspecific competition in the fish population, facilitating the partitioning of resources. In Minnesota streams, brook trout commonly live for 3-4 years. Throughout the 17th, 18th, and 19th centuries, angling authors, mostly British, some French, and later American, writing about trout fishing were writing about fishing for brown trout. The brown trout has been a popular quarry of European anglers for centuries. In Vermont streams, Brown Trout tend to reach 5-9 inches after two years, 8-11 inches by their third year, and 9-14 inches by their fourth year. Lake trout can live many decades, and can grow to more than 30 kilograms (66lb). Trout generally feed on other fish, and soft bodied aquatic invertebrates, such as flies, mayflies, caddisflies, stoneflies, mollusks and dragonflies. Salmonid populations in general have been declining due to numerous factors. Trout, especially farm-raised ones, tend to like, This page was last edited on 1 December 2020, at 16:17. Ontogenetic dietary shifts in a predatory freshwater fish species: the brown trout as an example of a dynamic fish species. I have been know to be wrong from time to time. state record for this fish is 7.56 kg (16-lbs. This fish now supplants the former world record from the Little Red River in Arkansas. Most return to their home streams to spawn, but some straying occurs. Learn how and when to remove this template message, Trout - S. G. B. Tennant, Jr., Arie De Zanger, "Search the USDA National Nutrient Database for Standard Reference", Sustainable seafood advisory lists and certification, https://en.wikipedia.org/w/index.php?title=Trout&oldid=991742631, Articles needing additional references from May 2008, All articles needing additional references, Wikipedia indefinitely semi-protected pages, Wikipedia articles needing clarification from November 2019, Creative Commons Attribution-ShareAlike License. And pools this issue is implemented by New Mexico Game and fish hatcheries stock. 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