The City of Ottawa is preparing to euthanize a school of invasive goldfish living in a stormwater pond in the Central Park neighbourhood, though the size of the population remains in question.

In March, city staff removed about 5,000 dead goldfish "using nets in the water and by hand" from the pond in Celebration Park, according to a written statement.

The city now says it has found a new population of goldfish in the same pond. Based on "a rough visual assessment," the surviving school is believed to number somewhere between 500 and 1,000, the city said.

"The fact that we’ve had approximately 6,000 fish in this pond, in this year, is mind-blowing,” said Coun. Riley Brockington, who represents the area.

"It’s just a number that’s difficult for me to wrap my head around." WATCH | City

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