Forestry influences on salmonid habitat in the North Thompson River watershed, British Columbia

3Citations
Citations of this article
26Readers
Mendeley users who have this article in their library.

Abstract

Freshwater ecosystems that support juvenile salmonids can be degraded by human pressures such as forestry. Forestry activities can alter water temperatures and the delivery and storage of water, nutrients, wood, and sediment in streams, resulting in changes to the habitat, growth, and survival of juvenile salmon. Previous research on forestry impacts on habitat has focused on small, intensively monitored coastal systems. Here, we examined forestry activities, watershed characteristics, physical habitat, and stream temperature for 28 mid-sized tributaries of the North Thompson River to examine relationships between forestry and juvenile coho stream habitat in interiorwatersheds. Forest harvest had a positive correlation tomaximum summer stream temperature. Streams with 35% of the riparian area harvested since 1970 had maximum summer temperatures 3.7 ° C higher on average than those with 5% harvested. Stream gradient explained most of the variation in physical habitat and had negative correlations to pool cover, pool depth, and fine sediment cover. Taken together, these results indicate that watershed characteristics drive physical habitat, but forest harvest can be a primary driver of water temperatures.

Cite

CITATION STYLE

APA

Cunningham, D. S., Braun, D. C., Moore, J. W., & Martens, A. M. (2023). Forestry influences on salmonid habitat in the North Thompson River watershed, British Columbia. Canadian Journal of Fisheries and Aquatic Sciences, 80(7), 1053–1070. https://doi.org/10.1139/cjfas-2022-0255

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free