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Class A Wild Trout Waters are the highest biomass class given to streams in Pennsylvania by the Pennsylvania Fish and Boat Commission. They are considered to contain the highest-quality naturally reproducing trout populations in Pennsylvania. The first Class A Wild Trout Waters were designated as such in 1983. There are now hundreds of such waters, comprising nearly of streams. The official definition of Class A Wild Trout Waters is "streams that support a population of naturally produced trout of sufficient size and abundance to support a long-term and rewarding sport fishery".〔 These streams are considered to be the best angling streams in Pennsylvania and most of the state's 67 counties contain at least one. Class A Wild Trout Waters are virtually never stocked, although many were prior to receiving their designation. There are different total biomass criteria for different species and combinations of species, but for brook trout alone, the minimum is , and for brown trout alone, the minimum is . Class A Wild Trout Waters receive certain legal protections. For instance, they are typically classified by the Pennsylvania Department of Environmental Protection as High-Quality Coldwater Fisheries. Most Class A Wild Trout Waters are subject to standard statewide angling regulations by the Pennsylvania Fish and Boat Commission. ==History== The modern stream classification system of the Pennsylvania Fish and Boat Commission, including Class A Wild Trout Waters, was developed with Operation Future, which marked a transition from recreation-based management to resource-based management, in 1983. Following statewide stream surveys in the late 1970s and early 1980s, the Pennsylvania Fish and Boat Commission created a set of biomass standards for trout streams in the state.〔 The first streams were designated as Class A Wild Trout Waters in 1983. At this time, 138 stream sections, totaling nearly of streams, were found to meet the criteria. As more streams were assessed, the number of Class A Wild Trout Waters grew rapidly.〔 By 2005, there were 436 Class A Wild Trout Waters, totaling .〔 By the end of 2008, there were 487 such stream sections, which together included of streams.〔 By 2014, there were 510 Class A Wild Trout Waters, comprising of streams. In the 2010s, the fact that the Pennsylvania Fish and Boat Commission was considering adding seven urban streams to its list of Class A Wild Trout Watersthus ending stocking therecaused some criticism by anglers who believed that this would impact the quality of fishing in heavily-fished streams such as Monocacy Creek and Little Lehigh Creek. However, the criticism was not universal, with proponents pointing out that a redesignation would provide extra protection for the streams.〔 The Pennsylvania Fish and Boat Commission eventually decided to classify them as Class A Wild Trout Waters, but continue stocking them in the spring to satisfy angler demand. According to ''Pennsylvania Outdoor News'' Person of the Year Bill Anderson, the Pennsylvania Fish and Boat Commission has, due to "'social' concerns", become hesitant to classify streams as Class A Wild Trout Waters. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Class A Wild Trout Waters」の詳細全文を読む スポンサード リンク
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