Escaped farmed Atlantic salmon have swum as far as 250 kilometres north of Washington state's San Juan Islands, where they broke free from a ruptured pen last month containing an estimated 305,000 fish.
The non-native species of salmon have been reported as far north as Tofino on the west side of Vancouver Island and Campbell River on the island's east side, according to Byron Andres, head of the federal Atlantic Salmon Watch program.
"Quite a distance. I'm not sure whether we should be surprised by that but they have travelled further than I initially anticipated," Andres told Gregor Craigie, host of On the Island.
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