Farming of brown trout has included the production of infertile triploid fish by increasing the water temperature just after fertilisation of eggs, or more reliably, by a process known as pressure shocking. [34] Outside the U.S. and outside its native range in Europe, introduced brown trout have created "world-class" fisheries in New Zealand,[35] Patagonia,[36] and the Falklands. Landon Mayer photo. Introductions of brown trout into the American West created new angling opportunities, none so successful from an angling perspective as was the introduction of browns into the upper Firehole River in Yellowstone National Park in 1890. This fish now supplants the former world record from the Little Red River in Arkansas. Sea trout are fished for especially at night using wet flies. The scientific name of the brown trout is Salmo trutta. Physical Description. Preferred Temperature Range: 65‐75 ºF, 18‐24 ºC redat rs for Adults – P o ... brown trout are wary and often easy to “spook.” The popularity of brown trout has steadily increased over the past several years, and they are now aggressively sought by many Great Lakes anglers. The optimal temperature range for feeding is Brown trout is about 55 to 67°F (12 to 19 °C) but they can survive and be active from 35 to 68 °F (2 to 20 °C). %���� [32] One of the earliest accounts of trout fishing in the park is from Mary Trowbridge Townsend's 1897 article in Outing Magazine "A Woman's Trout Fishing in Yellowstone Park" in which she talks about catching the von Behr trout in the river: Long dashes down stream taxed my unsteady footing; the sharp click and whirr of the reel resounded in desperate efforts to hold him somewhat in check; another headlong dash, then a vicious bulldog shake of the head as he sawed back and forth across the rocks. [29] In the early 20th century, British angler and author G. E. M. Skues pioneered nymphing techniques for brown trout on English chalk streams. However, stocking triploids may damage wild stocks in other ways. Some brown trout in coastal streams move out to sea, and small numbers are taken in Port Phillip Bay. Two Brown Trout swiming through a stream. Anadromous and nonanadromous morphs coexisting in the same river appear genetically identical. They grow rapidly, a little over one inch per month at the ideal water temperature of 59°F, and reach market size of … For example, in Canada's Bow River, a non-native alga Didymosphenia geminata—common name rock snot (due to appearance)—has resulted in reduced circulation of water amongst the substrate of the river bed in affected areas. It was first mentioned in angling literature as "fish with speckled skins" by Roman author AElian (circa 200 AD) in On the Nature of Animals. A fat rainbow such as this feeds often when water temperatures are to their liking. The original range of the brown trout is much larger than most anglers realize, reaching from northern Norway and the White Sea tributaries of Russia south to the Atlas Mountains of North Africa. Good quality brown trout can only be produced in rivers where habitat conditions are suitable. The activities of peroxisomal oxidases were highly influenced by temperature whereas catalase was only slightly affected. The specific epithet trutta derives from the Latin trutta, meaning, literally, "trout". A Brown Trout’s optimum water temperature range is 50 to 60 degrees, although it can tolerate water temperatures in the low 70s. The spawning behaviour of brown trout is similar to that of the closely related Atlantic salmon. 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