More than 1 billion sea creatures along the Vancouver coast were cooked to death during a record-breaking heat wave in the Pacific Northwest, according to preliminary data. I was not thinking to myself, ‘All of these things will probably be dead by Monday afternoon,’” Harley said. Last week, they estimated 1 billion dead sea animals. Harley said they’ve found more dead sea species in the weeks after the rare heat wave. This heat wave seemed to have hit the Salish Sea particularly hard, he said.