About 40,000 Atlantic salmon have escaped from a fish farm on the B.C. coast. Marine Harvest Canada says the fish escaped Wednesday from its farm at Port Elizabeth, on the Pacific Coast about 400 kilometres northwest of Vancouver. The company says divers discovered several holes in two pens at the farm and efforts are being made to prevent more escapes from the pens, which still hold thousands of fish. "Through the night Wednesday we had people working at the farm site to stop up the holes and reverse any ongoing problem with the escape," said Clare Backman, Marine Harvest's environmental compliance officer. The Living Oceans Society environmental group says hundreds of thousands of farmed salmon escape every year.