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Freshwater (Asiatic) clams (photo credit: Shuswap Watershed Council)

Push continues for action on invasive clams and mussels

May 5, 2021 | 3:15 PM

The Shuswap Watershed Council (SWC) is backing efforts by the Okanagan Basin Water Board and others to get additional funding to prevent invasive Zebra and Quagga mussels from entering B.C. waters, and measures to prevent the further spread of invasive clams.

“The Shuswap watershed, in particular, is at high risk of a new invasion of invasive mussels. Due to tourism and boat traffic — and our water quality conditions, ideal calcium and temperature — increase the likelihood the mussels will thrive,” Watershed Council Chair Paul Demenok, stated in a letter to Environment and Climate Change Minister George Heyman.

The letter states prevention is no longer an option to prevent invasive freshwater clams from entering the Shuswap Lake system as two colonies have already been found.

The province has done its own survey with divers and the SWC would like to have that information shared.

Heyman has been requested by Sicamous council and the SWC to declare freshwater clams (corbicula fluminea) as a ‘Prohibited Aquatic Invasive Species,’ under the controled alien species regulation of the wildlife act.

“Doing so would enable strong prevention methods, including enforcement,” Demenok stated.

The council noted the eradication of the existing Shuswap Lake colonies would also prevent the spread of the freshwater clams to other water bodies in B.C.

The province has indicated there won’t be any additional inspection funds for invasive mussels in 2021, and has had little to say about the freshwater clam situation.

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