Other uncertainties: Invasive species, disease pathways

A wide water fall tumbling down a tiered rock face.
Falls | Photo by Charles Short

Projected changes to climate variables are likely to interact to affect the likelihood of species invasions in BC waters, as habitats and oceanographic conditions change to facilitate the establishment of warm water species through species range expansions [12,13]. Marine diseases are also likely to increase in frequency and intensity, as species already stressed due to direct climate changes such as rising ocean temperatures are also more susceptible to infection [5]. The biological interactions and additive effects of disease and invasive species, such as green crab which is already invading BC waters [119], are highly uncertain [5, 86, 120].

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