Watercraft Inspection Stations can be found along the southern and eastern borders of B.C. (B.C. Government image)

Nineteen boats carrying invasive mussels stopped at B.C. borders

Waters of Columbia-Shuswap still test mussel-free

While lake sampling this spring and summer for invasive mussels in the Columbia Shuswap region looked good, several watercraft carrying the threatening species were found while they were entering B.C.

A B.C. Invasive Mussel Defence Program report from late April to Sept. 15 of this year shows that out of more than 50,000 inspections, 1,240 were considered high risk while 19 were found carrying invasive zebra or quagga mussels.

Fourteen of the 19 were entering B.C. from Ontario, two from Michigan, two from Utah and one from North Carolina. Eight were headed for the Lower Mainland, four for Vancouver Island, three to the Okanagan, two to the Kootenays, one to Skeena and one to Alaska.

The seasonal program ended in October and final numbers are expected soon.

According to B.C. Watercraft Inspection Stations, high risk includes:

• any watercraft or equipment that has been launched in any waters of a province or state known or suspected of having zebra or quagga mussels in the past 30 days.

• Any watercraft or equipment that is coming from or is registered to a state or province that is known or suspected of having zebra or quagga mussels and is not clean, and to the extent determined as practical by inspectors has not been drained and dried is considered high-risk, even if it has been out of the water for more than 30 days.

• Any watercraft that is dirty, crusty or slimy with the potential risk of transporting other aquatic invasive species.

Columbia Shuswap Invasive Species Society staff sampled 11 water bodies across the region for invasive mussels in summer 2019.

They sampled for adult mussels by installing substrate samplers, which are collections of different substrates on ropes lowered into the water and checked every two to four weeks. No sign of adult mussels were found on any of the 16 samplers deployed.

Staff also took 139 plankton samples from 27 locations on nine water bodies, searching for the larval stages of the mussels. So far all samples analyzed have been mussel free.

Sue Davies, head of the sampling project, said finding microscopic larvae of invasive mussels in a lake the size and shape of Shuswap Lake is challenging, but the more sites and more samples the better. She pointed out that Cinnemousun Narrows is an important place to sample because half of Shuswap Lake flows through the narrow strait and tends to eddy in one particular spot.

A Columbia Shuswap Invasive Species Society video demonstrates the impacts of invasive species.

North Okanagan-Shuswap MP Mel Arnold finds it troubling that so many high-risk watercraft are entering the province.

He states that 80 per cent of the last federal budget went to two invasive species in the Great Lakes, while 20 per cent was for the rest of the program.

Arnold was a member of the standing committee on fisheries that compiled a report on aquatic invasive species. Eight of the nine recommendations were about preventing the introduction of the species.

Read more: Detective dog, from Nelson, joins fight to combat invasive mussels

Read more: Okanagan dock owners urged to monitor for invasive mussels

Read more: Invasive mussels campaign ramps up for May long weekend

“The cost of prevention is fractional compared to the cost of treatment. They’re proably a greater ecological threat to the province than a massive wildfire,” Arnold contends, pointing out that trees can be grown after a fire. The mussels, however, could wipe out the sockeye fry and related food chain, as well as clog water intake pipes completely.

Arnold is in favour of increasing the use of sniffer dogs trained to detect the mussels, as well as increasing signs at borders and having full-time staffing at check points at all points of entry.

“I’m going to work with my colleagues in the Okanagan to put pressure to recognize the risks and to resource the program properly,” Arnold said.


@SalmonArm
marthawickett@saobserver.net

Like us on Facebook and follow us on Twitter

Get local stories you won't find anywhere else right to your inbox.
Sign up here

 

Watercraft Inspection Stations can be found along the southern and eastern borders of B.C. (B.C. Government image)

Zebra mussels on a boat propeller. (Photo Creative Commons)

Just Posted

Matthew Campbell, director of the Fraser Valley Regional Food Bank, stands amongst a large amount of non-perishable food and household items being stored inside the Pacific Community Church. This year’s ‘Halloween For Hunger’ food drive, put on by students at Clayton Heights, will go to benefit the Fraser Valley Regional Food Bank. (Photo: Malin Jordan)
Clayton Heights Secondary kicks off annual ‘Halloween for Hunger’ event

Students to collect much-needed items for food bank

Left, Rowena Leivo early on in her volunteer career with the South Surrey/White Rock Food Bank. Right, Leivo in the food bank Tuesday. (Contributed photos)
After 34 years, ‘The Boss’ retires from South Surrey Food Bank volunteer gig

Rowena Leivo, 90, spent a third of her life volunteering at the food bank

Ali Watson in Arts Club Theatre Company’s production of “No Child…,” which plays until Nov. 8. (photo: Moonrider Productions)
Viewers of Arts Club’s streaming plays support Surrey Civic Theatres

Company’s ‘bubble method’ of theatre production means just 50 in-person tickets for each performance

John Horgan brought the NDP campaign to Langley on Wednesday, Oct. 21, just three days before the B.C. vote (Matthew Claxton/Langley Advance Times)
Horgan brings NDP campaign to Langley

Predicts gains, says people are looking at the party ‘differently’ after three years

Surrey provincial court. (File photo: Tom Zytaruk)
OUR VIEW: Lenient courts aren’t helping

It’s hard to fault the palpable frustration of Metro Vancouver Transit Police

Provincial health officer Dr. Bonnie Henry presents modelling of COVID-19 spread in B.C., March 25, 2020. (B.C. government photo)
B.C. sets another COVID-19 record with 203 new cases

up to 1,766 active cases in B.C., two more deaths

RCMP. (Phil McLachlan - Black Press Media)
British Columbia man dies during ski trip near glacier west of Calgary

Kananaskis Public Safety and Alpine Helicopters responded around 2:30 p.m.

Prime Minister Justin Trudeau arrives on Parliament Hill in Ottawa on Monday, Oct. 19, 2020, following a week-long break for the House of Commons. THE CANADIAN PRESS/Sean Kilpatrick
One crisis after another for Trudeau since last federal election one year ago

It has been a year of unprecedented calamity and crisis

Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Join Black Press Media and Do Some Good

Pay it Forward program supports local businesses in their community giving

Rio Tinto Alcan’s aluminum smelter at Kitimat competes against producers in the Middle East and Russia that have no carbon tax. (Rio Tinto)
B.C. carbon tax highest in Canada, export industries unprotected

B.C. NDP, B.C. Liberals say they’re looking at exemptions

In this file photo, snow is seen falling along the Coquihalla Highway. (Liam Harrap/Revelstoke Review)
Weather statement issued for Coquihalla, Hwy 3, as arctic front approaches

The early season snowfall expected to hit Fraser Valley, Friday, Oct. 23

(Pixabay)
Vancouver teacher suspended after swearing, touching students and complimenting underwear

McCabe touched students, including rubbing their backs and necks, touching their hair and hugging them

Most Read