Brook trout (Salvelinus fontinalis) are primarily found within mountain stream habitats throughout Pennsylvania and are relatively short-lived, averaging about three years. In most cases Brook Trout are not found in water that exceeds 68°F/20°C. In natural conditions a more realistic low pH is around 4.8 (Flick 1991) with an optimum range between 6.5 and 8.0 (Raleigh 1982). They can also be adfluvial, or born in a stream but living primarily in a lake or pond. Because brook trout have such steep habitat requirements, they are used as an indicator species: their presence indicates whether or not a watershed is healthy. They inhabit small headwater streams, large rivers, ponds, and large lakes in … 0000001312 00000 n Some high elevation trout populations mature and reproduce at lengths smaller than 6 inches. The importance of water quality, as related to Four to six pound test line works great. Like all salmonids, cutthroat trout require diverse, yet well-connected habitats with structural components like boulders and large wood that provide good hiding cover. Specific Habitat Requirements Brook trout are the most generalized and adaptable of all Salvelinus species. While they can tolerate te… Their tails are only slightly forked, which gives them the nickname of "squaretail" in other parts of the country. Lake trout 2. By closely monitoring brook trout populations, scientists can learn not just about the fish, but about water quality in a river system. Because of their habitat and survival requirements, brook trout are typically found in the state's more pristine and remote areas. Cutthroat trout live in clear, cold headwater lakes, streams, and rivers. Brook trout, the state’s only native salmonid, occurs most often, followed by brown trout, rainbow trout, and lake trout. ��B��Ŝ9�9�p��11��Va��l��Be��G��L�X���e���%f�����3g���� If water goes above that, they’ll head deeper in to pool and rifts in rivers and deeper into lakes and ponds. 0000000596 00000 n In the warmer months, they are going to be a little deeper. Brook trout eggs are usually found in gravel depressions, influenced by groundwater. Brook trout are available in year round lakes. 89 15 Cutthroat trout seek out sediment-free gravel sub- strate in … 0000004111 00000 n Closed canopy forest cover is a key common denominator for the persi… Brook trout also have the unique features of red spots surrounded by blue halos along their sides and dark wavy "worm marks" or "vermiculations" on their backs and dorsal fins. The acceptable range of temperature for both juvenile and adult brook trout is believed to lie in the 10-20 degree C range during the warm part of the year (May to September). For example, if a brook trout … Exceptionally large fish encountered in pools or larger stream habitats may live upwards of four to six years! Brook trout are very popular game fish because of their beautiful coloration, their excellent palatability and they are considered to be one of the easiest trout to catch on hook and line. Bull trout 4. Brook trout in Maryland are valuable for aesthetic, recreational, economic, and biological reasons. 2014), Brook Trout populations remain subject to habitat degradation and other threats. 0000000984 00000 n %PDF-1.4 %���� %%EOF xref They are the most delicate and require cold, well-oxygenated, clean water. Brook Trout also tend to prefer areas out of the main flow with relatively low water speeds (about 0.5 feet per second) and overhead cover such as boulders, vegetation, fallen trees or large woody debris, and undercut banks. Encouraging flood control and managing stream bank vegetation are important in allowing the stream to function as trout habitat, but more costly. 0000001785 00000 n Brook trout spawning behavior is largely dictated by fluctuations in water temperature. WPWA ASSESSING HABITAT REQUIREMENTS FOR BROOK TROUT Page 1 Assessing Habitat Requirements for Brook Trout (Salvelinus fontinalis) in Low Order Streams S. Saila, E. Lewis, M. Cheeseman and D. Poyer Wood-Pawcatuck Watershed Association 203 Arcadia Road Hope Valley, RI 02832 Funded in part by: They are members of the char subgroup of the salmon family, which also includes: 1. 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