Headwater streams support vital aquatic habitat yet are vulnerable to changing climate due
to their high elevation and small size. Coldwater fish are especially sensitive to the altered …

Environmental flow rules are developed to provide a flow regime necessary to maintain
healthy river and floodplain ecosystems in rivers regulated for human uses. However, few …

Quantifying the dynamics of natural populations is a central issue in ecology. In the Pacific
Northwest of North America, climate extremes are becoming more frequent and severe with …

Threshold effects are common in ecosystems and can generate counterintuitive outcomes in
management interventions. A threshold effect proposed for steelhead trout (Oncorhynchus …

This study advances understanding of the flow dependency of invertebrate drift in rivers and
its relevance to drift-feeding fish. Background drift concentration varied spatially and with …

Trout growth and production are controlled by (1) the area and quality of habitat for
sequential life history stages,(2) the availability and production of invertebrate prey, and (3) …

The seasonal habitat use of Salvelinus fontinalis (Brook Trout) and sub-yearling Salmo salar
(Atlantic Salmon) was examined in Hart Brook, a tributary of Lake Ontario. Fish habitat use …

We examined the effect of flow regime on the occurrence of interference and exploitative
competition in a salmonid species, white-spotted char (Salvelinus leucomaenis). In the lotic …

Despite effects of dams and water extraction on river hydrology and consequences of
aquatic ecosystems being broadly appreciated, empirical evidence is lacking for many …

Brook trout are the one of the only S alvelinus species native to eastern N orth A merica and
range from C anada to G eorgia. Very little is known, however, about the ecology of the …