Government of Saskatchewan
Monday, November 20, 2017
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Learn about invasive species that threaten Saskatchewan waters and how the province is addressing the issue through prevention.

Product List
 A | C | D | E | F | N | R | S | Z |

A
  Asian Clam Fact Sheet
This non-native mollusk is found in brackish to freshwater waterbodies and is one of the most widespread aquatic invasive species.
  Asian Tapeworm Fact Sheet
This aquatic intestinal parasite can infest freshwater fish by reducing body growth, causing anemia, and causing mortality by absorbing the nutrients of its host.
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C
  Channeled Applesnail Fact Sheet
This invasive snail can grow up to three inches long and is similar in appearance to the native island apple snail. It prefers to live in submerged vegetation with an activity rate dependent on water temperature, with a preference around 25 degrees Celsius.
  Chinese Mitten Crab Fact Sheet
This invasive species prefers fresh or brackish waters and will move to saltwater for reproduction. They can tolerate polluted areas, making them difficult to eradicate.
  Clean | Drain | Dry Factsheet
Follow these tips to prevent the spread of aquatic invasive species.
  Conrad's False Mussel Fact Sheet
This mussel is similar to the invasive zebra and quagga mussels and attaches itself to surfaces using their foot muscle and byssal threads. They can cause damage to aquatic habitats, fisheries, recreational resources and water-based infrastructure.
  Curly Leaf Pondweed Fact Sheet
This submerged, perennial, invasive aquatic plant forms dense mats at the surface of rivers and lakes during late spring and early summer. It grows into the fall and early winter, then dies off in late July. After the July die off, it washes up along shores, creating unfavourable conditions for recreational activities.
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D
  Didymo Rock Snot Fact Sheet
This invasive algae tolerates a wide range of habitat conditions and it only takes the introduction of one cell for it to establish into a new colony.
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E
  Eurasian Watermilfoil Fact Sheet
This plant can be found growing in water as deep as 10 metres, but 1 to 3 metre depths are preferred. As it grows in dense patches, it creates stagnant water that attracts mosquitoes which can impact recreational activities.
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F
  Faucet Snail Fact Sheet
These snails have the ability to close their shells and live for many days out of the water. They compete with native species, clog water intakes and are a host to parasites.
  Fishhook Fact Sheet
These crustaceans rely on wind and water currents to move within aquatic ecosystems and prefer large, clear, deep lakes.
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N
  New Zealand Mudsnail Fact Sheet
This animal can tolerate variable environmental conditions and can reproduce rapidly in high quantities. It only takes one snail to start a new population and eradication is impossible.
  Northern Snakehead Fact Sheet
This species, native to China and Siberia, prefers low temperatures. Juvenile snakeheads eat plankton, insect larvae, small crustaceans, and the fry of other fish. Adult snakeheads eat other fish, crustaceans, frogs, small reptiles, and sometimes small birds and mammals.
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R
  Round Goby Fact Sheet
This fish can tolerate many different environmental conditions with a wide range of water temperatures. It can have serious impacts on native species and cause sport fishery populations to decline as they compete for food, habitat and prey on eggs and young of other fish.
  Rusty Crayfish Fact Sheet
This crayfish has a high tolerance for extreme water temperatures and competes with native crayfish for the same food and habitat sources. A single female can create a new population with her ability to carry up to 200 fertilized eggs under her tail.
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S
  Saskatchewan Adult Invasive Mussel Monitoring (AIMM) User Guide
This program monitors waterbodies throughout Saskatchewan for aquatic invasive species and adult invasive mussels.
  Silver Carp Fact Sheet
This fast growing fish competes with native species for plankton. They can also be hazardous to humans taking part in boating activities as the vibrations from the boat motor can cause the fish to jump up to three metres out of the water.
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Z
  Zebra and Quagga Mussels Factsheet
These mussels can attach themselves to the watercraft hull, engine, trolling motors, trailer and any related equipment that made contact with the water. With the ability to close their shell and survive out of the water in moist conditions for up to 30 days, these mussels can easily be transported over land across long distances.
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