Sea Floor
This invasive species has gotten its name through the colour and pattern of its shell.
Zebra Mussel
- Results in the decline of species like Walleye
This invasive species is considered a weed but looks a lot like Scentless Chamomile.
Ox-Eye Daisy
- Displaces native vegetation due to its formation of dense stands
This invasive species grows to choke out other surrounding plants (even trees) in competition.
- Causes a threat to native biodiversity
This invasive species has a caracteristic of metal in its name.
Rusty Crayfish
- Aggressively resilient in extreme conditions and competes with native crayfish for food + shelter
This invasive species has a feather-like appearance.
Fanwort
- Clogs drainage canals and streams
This invasive species produces toxic sap that can react negatively to sunlight.
Giant Hogweed
- Can cause severe burns and results in skin sensitivity
This invasive species is a type of small tree that can be prickly.
European Buckthorn
- Dominates vegetation underneath open fields
This invasive species is referred to as a "Vampire Fish", and is seen a a type of parasite.
Sea Lamprey
- Preys on native fish
This invasive species can create an ideal habitat for mosquitos.
Eurasian Water-Milfoil
- Reduces biodiversity and oxygen levels in the water
This invasive species was initially shipped to Canada for crop consumption, but quickly became a problem due to the density of their growth clusters.
Garlic Mustard
- Prevents other plants from pushing through and retrieving nutrients.
This invasive species is a semi-woody plant that can break through asphalt or concrete.
Japanese Knotweed
- Plant populations are extremely persistent and reduces biodiversity
This invasive species has a rapid reproduction rate and uses aggression to compete for food.
The Round Goby
- Dominates spawning sites and takes other fish's food
This invasive species is pretty when single, but in groups it can cause problems.
Starry Stonewort
- Hinders boaters and water clarity
This invasive species grows strong root systems which can rapidly grow and forms dense mats.
Purple Loosestife
- Outcompetes other plants for nutrients
This invasive species was introduced to Canada for its fast-growing capabilities.
Scotts Pine
- Most strands of the pine grow abnormally and are not good for timber and end up taking over useful space.
This invasive species can invade human homes as well as the environment.
Norway Rat
- Carry fleas which can give bacterial infections
This invasive species is native to Eurasia but was accidentally introduced into the Great Lakes.
Spiny Waterflea
- feeds on native zooplankton and disrupts food web
This invasive species is one of the most aggressive and fast-spreading species in all of Ontario.
Invasive Phagmites
- Grows in thick root systems that prevent other plants from growing and withholds nutrients from other plants.
This invasive species is not technically a tree or vine but affect them greatly.
Emerald Ash Borer
- Disrupts the flow of water and nutrients through trees to cause dead ash trees
This invasive species started out by infiltrating Lake Erie and continued on through Lake Michigan, Huron and superior.
Rainbow Smelt
- Eats the young of other fish, which results in large amounts of biomagnification