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Up to the gills in goldfish: Large invasive fish a problem in B.C. waters: expert
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Goldfish — some nearly as big as a football — are invading British Columbia’s lakes and quickly spreading, putting native fish populations at risk, a researcher says.
Brian Heise, an associate professor in the department of natural resource sciences at Thompson Rivers University, says thousands of large, invasive goldfish have multiplied in bodies of water around the province.
“They’re not the little fish you see in the pet store. They actually get quite large, and they have the potential to get even larger, especially probably in some warmer, more productive waters,” he said.
Heise, a former chair of the Invasive Species Council of B.C., said female goldfish, often illegally dumped by people looking to get rid of a pet, can release 50,000 eggs at a time, three times a summer.
“Females don’t even need a male (to reproduce). They have a special process called gynogenesis in which the female will get the sperm from a different kind of minnow … to start the eggs developing, even though they’re not fertilized,” he said.
“And so she produces clones of herself. So, they’re very good at spreading rapidly.”
The goldfish compete with native species for food and space, and carry parasites and diseases that can spread to other fish, including the salmon population, he said.
Over the last decade, Heise said goldfish populations have spread from the Vancouver area to lakes in the northern and Interior parts of the province.
One of the most common ways to capture goldfish is through a process called electrofishing.
An electric current is passed through the water to stun the fish, allowing them to be scooped up. Heise said the method allows native fish to be easily revived and goldfish removed.
“The downside is that you’re not killing all the fish. Therefore, you have to keep doing it again and again and again,” he said.
“And it’s actually quite an expensive process. To go into a lake and shock for a couple of days would probably cost you $10,000.”
In a statement, B.C.’s Ministry of Water, Land and Resource Stewardship said a three-year electrofishing program at Dragon Lake in Quesnel that ended last year removed just over 6,000 goldfish.
The ministry said staff in the region are typically aware of infestations “and take a risk-based approach to determining actions.”
It said goldfish have not proven to have a significant impact on the lake’s rainbow trout population which has remained stable in the fishery.
“In addition to electrofishing, 6,000 yearling Horsefly strain rainbow trout have been added to the stocking regime annually since 2020. This strain of rainbow trout is highly adapted to feeding on fish and are now large enough to prey on goldfish,” the statement says.
“Presently, the ministry is not planning on continuing the electrofishing program. The ministry will continue with the annual stocking of horsefly strain rainbow trout.”
The statement says the government monitors the rainbow trout population annually to detect changes and has increased the distribution of educational materials to prevent pet owners from releasing their goldfish.
Heise said while the trout in Dragon Lake eat goldfish, there are other strains of rainbow trout in other lakes that don’t.
“So instead of eating the little fish and getting big, they’re having their food taken away by the goldfish. It’s not a simple situation.”
He said the province needs to fund electrofishing efforts where goldfish could be threatening trout and salmon but it also needs to work with pet stores and the pet industry so customers can return unwanted animals instead of dumping them.
“I think that if pet stores are bringing in exotic animals, and they’re selling them to the public, it behooves them to then follow up and make sure that the public realize that you can’t put these creatures in the wild once you finish,” he said.
“It doesn’t matter whether it’s a snake, a turtle, a bird or a fish, you just can’t put it into the wild. It’s often going to be harmful to that animal because they’re not adapted to that place, but also we’re going to harm our local animals and plants.”
— Ashley Joannou in Vancouver
This report by The Canadian Press was first published March 3, 2023.
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We're still stockpiling reusable bags. Big grocers have adopted solutions, but experts have concerns – CBC News
Canada’s plastic bag ban has had an unintended consequence: a proliferation of reusable bags piling up in basements, closets and, eventually, landfills.
“They’re everywhere,” said environmental researcher Tony Walker. “We’re drowning in them, and we shouldn’t be.”
To combat the problem, several of Canada’s big grocers have introduced solutions. Last week, Walmart launched a free national recycling pilot program for the retailer’s reusable blue bags. Competitors Sobeys and chains owned by Loblaw Companies Ltd. use recyclable paper bags for grocery delivery.
But some environmental experts argue that paper bags are also problematic and that the best solutions are those that help customers actually reuse their reusable bags.
“We just can’t keep giving [them] out,” said Walker, a professor at Dalhousie University’s School for Resource and Environmental Studies in Halifax. “We’re only meant to have a few of them, and we’re meant to use them until they fall apart.”
In late 2022, the federal government rolled out a ban on the manufacture, import and sale of several single-use plastics, including checkout bags. The regulations are being contested in court, but in the meantime, they remain in effect.
The regulations have made single-use shopping bags scarce in Canada, but they’ve also led to the proliferation of reusable bags, especially for grocery delivery.
“It just creates more waste, which is what we’re trying to avoid in the first place,” Walmart customer Udi Sela said in a CBC News interview in late 2022.
At the time, Sela, who lives in Maple, Ont., estimated his family had acquired about 300 reusable Walmart bags via grocery delivery.
“We can’t return them, we can’t do much with them.”
Now, a little more than a year later, Walmart has launched a pilot project to address the problem.
It allows customers to pack up their unwanted reusable Walmart blue bags and ship them — at no charge — to a facility where they’ll get a second life.
How it works
According to Walmart, bags in good condition will be laundered and donated to charity, primarily Food Banks Canada. Damaged bags will get recycled into other materials. Reusable bags typically can’t go in blue bins because they’re costly and difficult to recycle.
Customers must sign up for Walmart’s program, and enrolment is limited.
Jennifer Barbazza, Walmart’s senior manager of sustainability, said the retailer will fine-tune the details as the program progresses.
“[We] know that some customers have more reusable bags than maybe they need,” she said. “One of the things that we’re really excited to learn about from the pilot is customer acceptance and customer feedback.”
Reusable bags are living rent free in closets and car trunks across the country. Most major retailers made the switch away from single-use plastic bags about a year ago, but it’s taking time for some customers to catch on. They’re forgetting to bring their bags with them, and buying more every week.
Udi Sela has already signed up.
“I definitely think it’s a step in the right direction,” he said in an interview on Friday. “It’s something that needed to be done a while ago. God knows we’ve got a ton of bags kind of piled up.”
He said he’s concerned that some customers may find mailing the bags a hurdle. However, it’s not deterring Sela, who soon plans to ship hundreds.
Passing the buck?
Not everyone is keen on Walmart’s project. Emily Alfred, a waste campaigner with Toronto Environmental Alliance, said donating the bags to the food bank is just passing on the problem.
“We need to remove waste from the system entirely, and just sending these somewhere else for someone else to deal with is not really a solution,” she said.
Alfred said a better option is a program Walmart piloted in Guelph, Ont., in 2022. For a fee, customers could check out reusable bags from an in-store kiosk and later return them to be cleaned and reused.
“That’s a real circular reuse system,” she said.
Walmart’s Barbazza said the retailer is continuing to explore different reusable bag programs, including ones placed in stores.
She also said she’s confident Canada’s food banks will make good use of the bags.
“There’s definitely a need for sturdy items to distribute materials to the food bank clients.”
The paper problem
Among Canada’s major grocers, only Walmart offers a reusable bag program for all customers.
Loblaw recently switched from reusable to recyclable paper bags for grocery delivery. Sobeys did not respond to requests for comment, but according to its website, the grocer also uses paper bags and “reusable options” for home delivery.
Several environmental experts say paper bags aren’t a good solution, because their production leaves a sizable carbon footprint.
“Paper bags are a problem,” Alfred said. “It takes a lot of energy to recycle paper, takes a lot of trees and energy to make new paper.”
Loblaw said it continues to explore a variety of more sustainable solutions. “It’s a challenge we’re committed to addressing,” spokesperson Dave Bauer said in an email.
Both Walker and Alfred applaud Metro for its grocery delivery program, because the grocer, which operates in Ontario and Quebec, reuses delivery materials.
Metro said customers can get their goods delivered in a cardboard box or reusable bags, which can be returned and used for another delivery. Or customers can opt for a plastic bin and remove their groceries from it upon arrival.
Metro does not offer similar programs for in-store shoppers.
Alfred said the federal government should introduce regulations that mandate retailers adopt effective reusable bag programs for all customers.
“It’s up to our governments and people to demand that these companies do better,” she said.
But Walker suggested that the regulations would be hard to enforce and that incentives could be a better tactic.
For example, if retailers increased the price of reusable bags, shoppers might be less likely to forget them when they head to the store, he said.
“When the cost is a disincentive to do an activity, people change their behaviour.”
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CTV National News: Honda’s big move in Canada CTV News
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Deputy Prime Minister and Finance Minister Chrystia Freeland says she thinks unhappy premiers will come around on measures in the federal budget that touch on provincial legislation, even as they push back.
At an event in Toronto on Sunday, Freeland — who presented the federal budget on Tuesday — said the national government needs to push ahead on such issues as housing and she was “extremely optimistic” premiers would choose to co-operate.
“Housing is a national challenge, and the federal government needs to be leading the charge,” she said.
“My own experience has been when there are big issues that really matter to Canadians, after all the sound and the fury, people are prepared to roll up their sleeves and find a win-win outcome for Canadians.”
Several premiers have pushed back against the federal government in recent months and again after the budget was released on the grounds that some measures touch on provincial jurisdiction.
This week’s federal budget has premiers lashing out at Prime Minister Justin Trudeau over a planned increase to capital gains taxes as well as what they say is overstepping on infrastructure and pharmacare.
In a letter released Friday by the Council of the Federation, which represents the leaders of all 13 provinces and territories, the premiers said Ottawa should have consulted them more ahead of the budget.
Individual premiers have shared more pointed critiques.
“It’s a never-ending spending platform that we’ve seen now for the last 10 years,” New Brunswick Premier Blaine Higgs said on CBC’s Power & Politics on Friday.
“My initial thoughts about the federal budget are that they are overtaxing, overspending, overborrowing and over interfering in provincial affairs,” Alberta Premier Danielle Smith said earlier this week.
Alberta has clashed with the government repeatedly over housing. Smith introduced legislation earlier this month that would require provincial oversight of deals made between municipalities and the federal government, including for future agreements around federal housing funds.
At Issue this week: The Liberals work to sell their multibillion-dollar spending plan and capital gains tax hike. Pierre Poilievre tells Radio-Canada what he thinks of the federal budget. And another province pushes back on the carbon tax.
Freeland said on Sunday that, as an example, the federal child-care program negotiated through a series of deals with provinces and territories showed that co-operation was possible.
Capital gains tax changes criticized
The federal government has also faced some opposition on what was perhaps the most prominent measure revealed on budget day: changes to Canada’s capital gains tax rules. The government has proposed raising the inclusion rate to 67 per cent on capital gains above $250,000 for individuals.
“The 21st-century winner-takes-all-economy is making those at the very top richer, while too many middle-class Canadians are struggling,” Freeland said Sunday, adding the government was asking wealthy Canadians to pay their “fair share.”
“We do need to ensure that we have some revenue coming in. This is a very limited way of ensuring that that occurs,” Treasury Board President Anita Anand said in an interview on Rosemary Barton Live on Sunday.
Treasury Board President Anita Anand joins CBC chief political correspondent Rosemary Barton to talk about the federal budget and its focus on young Canadians — as well as the criticism it’s receiving.
Critics have raised concerns that the changes could result in reduced investment or capital flight.
“The big concern right now … is this going to have a detrimental impact to the progress we’re trying to make in making Canada a hub for innovation,” said Kirk Simpson, CEO of the tech company goConfirm, in a separate interview on Rosemary Barton Live.
“With productivity the way that it is, we want more capital, not less, flowing into business innovation,” Simpson told CBC chief political correspondent Rosemary Barton.
Freeland said Sunday that the changes will affect very few Canadian individuals — the government estimates 0.13 per cent — and the revenue will go to pay for investments in areas like housing.
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