Mail order and Internet sales have also increased the risk of these introductions.Īquatic invasive species also include those native to parts of Canada that have been introduced into areas outside their historical range. Increased trade volumes and reduced shipping times have contributed to increased levels of pest introductions throughout the world. In addition to those currently identified, new aquatic invasive species are continually arriving at our borders by air, water or land. Others are not native in some parts of Canada but invasive in others, such as the: Others threaten invading, like the Asian carps. Many aquatic invasive species are already established in Canada, including: There are other aquatic species such as viruses, bacteria, parasites and other micro-organisms that can have equally devastating impacts in the aquatic environment. This is especially concerning for species at risk. They can even alter habitats to make them inhospitable for the native species. As a result, they can outcompete and harm native species. Once introduced, aquatic invasive species populations can grow quickly because they don’t have natural predators in their new environment. On this pageĪquatic invasive species are fish, invertebrate or plant species that have been introduced into a new aquatic environment, outside of their natural range. Learn what an aquatic invasive species is, the problems they cause in Canada, how they can be managed and how Canada is responding.
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