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British Columbia Confirms Presence Of Quagga Mussels On Power Boat From Arizona
Posted on Friday, July 20, 2012 (PST)

British Columbia government officials say they worked closely with the Invasive Species Council of B.C., provincial and federal agencies, and international partners to respond decisively to a threat of invasive zebra and quagga mussels at Shuswap Lake this month.


The presence of quagga mussels was confirmed on a power boat that was transported to British Columbia from Arizona. With the support of the Ministry of Environment and the Ministry of Forests, Lands and Natural Resource Operations, regional conservation officers and federal Department of Fisheries and Oceans officers removed the boat from Shuswap Lake on July 3.


This action was taken to limit the likelihood of mussels becoming established in the lake and was done with the cooperation of the boat owner and the marina operator. The boat was thoroughly inspected and decontaminated after it was pulled from the lake.


It’s now been confirmed that sample mussels taken from the vessel were dead at the time they were removed. There is still a small risk that viable mussels were on the hull or in internal water sources at the time the boat was launched and docked in Shuswap Lake. As an extra precaution, water samples from the boat’s bilge and pump systems are being analyzed for the presence of mussel larvae. Divers are also scheduled to complete a thorough inspection of the marina’s moorage area, piers and lakebed.


The introduction and establishment of zebra mussels or quagga mussels into British Columbia would change the biodiversity of “our water systems, threaten native species and fisheries, and increase maintenance costs related to the operation of hydroelectric, industrial, agricultural and recreational facilities,” said government officials in a press release.


In 2009, British Columbia signed on as a partner in the Columbia Basin Rapid Response Plan, along with Washington, Oregon, Idaho and Montana. The system provides early detection, rapid response and notification about zebra and quagga mussels.


These mussels and other aquatic invasive species can be transferred from one body of water to another on boats, trailers, and boating and fishing equipment. The Invasive Species Council of B.C. is currently working with local invasive species committees and regional districts to deliver the “Clean, Drain, Dry” program. Trained staff are at boat-launch sites throughout the summer to talk to recreational boaters about the importance of cleaning their boats and equipment to halt the spread of invasive species.


“Our government works collaboratively with the Invasive Species Council of B.C. and communities throughout B.C. to respond to invasive species risks. Staff are committed to delivering an effective early detection and rapid-response program to address any new invasive species that are found in B.C. The Shuswap Lake situation is an excellent example of how a quick and proactive response can minimize such threats,” said Minister of Forests, Lands and Natural Resource Operations Steve Thomson.


Quick Facts:


-- Zebra and quagga mussels originated in Europe and were introduced to Canada and the United States in the 1980s. They have been found in the Great Lakes in Ontario and Quebec, and in at least 24 American states, as far west as California and Colorado.


-- The mussels are fingernail-sized, freshwater mollusks that can easily attach themselves to objects and other organisms. They are not native to British Columbia and are difficult to eradicate.


-- Live mussels that become attached to recreational vehicles, boats, boating equipment and fishing gear can be easily transferred from one body of water to another.


--- The “Clean, Drain, Dry” information campaign program is running at boat launches this summer in Dawson Creek, Burns Lake, Williams Lake, Kamloops, Shuswap, Vernon, Penticton, Castlegar, Cranbrook, Abbotsford, Duncan and Courtenay.


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