UBC Undergraduate Research

The potential effects of the mountain pine beetle on the five species of Pacific salmon in the Fraser River Basin Toda, Emily

Abstract

The effects of the Mountain Pine Beetle epidemic in British Columbia have the potential to affect the five species of Pacific salmon that spawn in the Fraser River basin. The lifecycles of all five species were studied to try and create a comparison among the species. Facts about the beetle, the Fraser River and Pacific salmon were collected from multiple sources to showcase what they have in common. It was found that the Mountain Pine Beetle has the potential to impact Pacific salmon directly and indirectly, in both positive and negative ways. Fewer coarse woody debris inputs into small streams, increases in small tributary temperatures, peak flow levels and timing, and increased nutrient levels can be seen to affect both adult and juvenile salmon at different points in their life cycles. Future research needs to be collected, and awareness of the potential effects needs to be shared.

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Attribution-NonCommercial-NoDerivatives 4.0 International

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