how did the zebra mussel get to canada?
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Zebra mussels first arrived in Canada in 1986. They were found in a harbour in Lake Erie, most likely transported from Europe via transatlantic shipping. Within several years, zebra mussels spread throughout the Laurentian Great Lakes.
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Origin and Spread The species was unintentionally introduced into the United States' Great Lakes through the discharge of contaminated cargo ship ballast water. They were first discovered in the Great Lakes in 1988 and were first confirmed in the Duluth/Superior Harbor in 1989.
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The spread of zebra mussels: Originally from the Balkans, Poland and the former Soviet Union, zebra mussels are firmly established in Europe and have invaded much of the U.S. On April 3, 2009, the first adult zebra mussel in Texas waters was confirmed in Lake Texoma.
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The zebra mussel is native to Eastern Europe and Western Russia. The species was unintentionally introduced into the United States' Great Lakes through the discharge of contaminated cargo ship ballast water.
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Bay of Fundy. Winding its way between the Maritime provinces of New Brunswick and Nova Scotia, the Bay of Fundy is 170 miles of craggy cliffs, thundering waves, and ecological wonders.
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Zebra mussels are suspension feeders, eating phytoplankton, small zooplankton, large bacteria, and organic detritus by filtering the water and straining out the edible material. Phytoplankton and zooplankton form the base of the aquatic food web, so many animals depend on them for survival.
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['New Brunswick - Fredericton.', "Newfoundland and Labrador - St. John's.", 'Nova Scotia - Halifax.', 'Ontario - Toronto.', 'Prince Edward Island - Charlottetown.', 'Quebec - Quebec City.']
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Zebra Mussels are believed to have hitch-hiked from Europe to North America in ballast water from transoceanic ships. ... They disperse downstream on water currents during their free-floating larval stage. They are only able to disperse into upstream areas, like Kelso Reservoir, through human activity.
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Three species of mantids are recorded in Canada. The praying mantid (Mantis religiosa) was introduced accidentally from Europe to New York, US, in 1899 and subsequently spread to southern Ontario and Quebec. ... The ground mantid, (Litaneutria minor) ranges from Mexico north to BC, and is the only native Canadian mantid.
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A native of Eurasia, the zebra mussel had arrived in North America by the late 1980s, invading the Great Lakes Region. Since then the zebra mussel and its close relative the quagga mussel have spread to numerous states through the Mississippi waterway and have traveled overland on boats as far west as California.
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The zebra mussel is a species that arrived 200 years ago in the UK from the Caspian Sea and is now thriving as a result of the cleanliness of our water systems. They can spread easily as their larvae move through canals and rivers like cars on a motorway network.
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Traditional methods for dealing with zebra mussels Traditional control methods include: Chemical. Oxidizing chemicals such as chlorine, bromine, potassium permanganate and ozone are used extensively, with the help of injectors in pipe systems.
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Zebra mussels: Good, the bad and the ugly. ... Since then, the mussels have spread throughout the lake and their effects have been well chronicled. They kill native mussels; coat surfaces with razor-sharp shells; foul anchor chains; block water intake pipes; and steal plankton and other food from native fish.
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Most lupins are native to western North America. "How did lupins from western Canada get out here? Mostly by escaping gardens and from people spreading seeds," she said.
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How Did They Get Here? The zebra mussel escaped from its homeland in the Black and Caspian seas in the 1700s and emigrated to western Europe. From there, it hitched a ride in the ballast tanks of ships across the Atlantic and through the St. Lawrence Seaway to the Great Lakes.
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In the late 1800s when ships began to use ballast water, the transfers of large volumes of water were possible. This ballast water frequently harbored exotic species and it is most likely that zebra mussels were introduced into the North American Great Lakes in this manner.
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Most zebra mussels live in water that is 2 to 12 meters deep. In shallower water waves and ice make it harder for them to survive. They can live in much deeper water -- some zebra mussels have been found as deep as 60 meters, and they can probably live deeper than that.