Aquatic Invasive Species

Alien plants, fish and other aquatic organisms thrive in new environments where the normal environmental limits and familiar predators are absent.  These organisms have the potential to reduce or eliminate native species through predation, competition for habitat or resources or by altering the habitat.

One of the consequences of an increasingly connected world is the rise of introduced alien species. These organisms are transported internationally through the shipment of goods, in ballast water from foreign waters or a myriad of other ways. Some species have been intentionally introduced to the wild without consideration for the consequences to native organisms. Their entry into the local environment and dispersal are aided by the improper management or disposal of exotic plants and animals or through inadvertent transportation via vehicles, boat trailers, etc.   Once established and in the absence of the control factors of their native habitat, they have the potential to flourish at incredible rates.

Better known aquatic invasives in British Columbia include largemouth and smallmouth bass and eurasian millfoill. Invasive species for which monitoring programs have been established but that have not yet been identified in BC  include zebra and quagga mussells

diagram showing the increasing distribution of invasive fish species across BC watershedsWhat you can do

Report sightings of invasives using an Android or Apple app or by using an online form.

Sightings of invasive mussels can be reported to the BC Conservation Officer Services: 1 877 952-7277

Follow the Clean, Drain, Dry approach whenever removing your boat from the water

For more information:

Provincial invasive species monitoring and additional information

Invasive mussels monitoring and defence

Invasive Species Council of BC