Populations of wild Brown Trout have been documented in many waterways throughout Pennsylvania. Wild fishes are those species of fish that were born and grew up within the stream, river, or lake. Brook Trout remain the only wild trout native to Pennsylvania's inland streams and rivers, while the four other native species (Longjaw Cisco, Cisco or Lake Herring, Lake Whitefish, and Lake Trout) inhabit the state's lakes. Other members of the trout family native to Pennsylvania, not introduced, are Chars of the genus Salvelinus: the Brook Trout and the Lake Trout.
Rainbow Smelt were believed to prey on whitefish eggs and young. It has rebounded with reductions in the numbers of Sea Lampreys and Rainbow Smelt. The Whitefish is currently an important commercial species. In Pennsylvania, the trout and salmon family includes three species of the genus Coregonus, all native and found in Lake Erie: the rare Longjaw Cisco, the Cisco or Lake Herring, and the Lake Whitefish–silvery well-scaled fishes with deeply forked tails. However, where streams are cold and clean enough, with proper spawning habitat, Pennsylvania also has a wealth of reproducing populations of wild trout. Many trout that anglers catch in Pennsylvania are the result of the stocking of hatchery-raised fish. Because of their popularity for sport and commercial fishing, this family has been stocked in waters worldwide and is now found on nearly every continent. One family member, the Arctic Char, is the freshwater fish that occurs the farthest north. It is native to cool and cold streams and lakes throughout Europe, northern Asia and North America, and reaches as far south as northwest Mexico and extreme northern Africa. Family Salmonidae, the trout and salmon family, includes great game fish like trout, salmon, chars and grayling, as well as food and baitfishes like whitefish and ciscoes.
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