Campbell River tackles goldfish invasion in stormwater pond

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Campbell River tackles goldfish invasion in stormwater pond
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This summer, when the pond is low, the city plans to pump it out in an attempt to eradicate the fish

Steve Roehr, operations manager of public utilities, said about 40 fish were captured last fall in Erickson Pond, but many more may be lurking — and growing — in the depths.

Roehr said the pond is connected to the Willow Creek Watershed, which means any impacts to the pond also affect the watershed. And they 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,” Heise said.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, Heise said.

It will also address invasive plants like yellow irises around the pond. Both of these invasive species have been introduced by people, and pose a threat to native species, he said.

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timescolonist /  🏆 15. in CA

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