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(a) Time series (from left to right) of population change of great whales, harbour seals, northern fur seals, Steller sea lions and sea otters in the North Pacific Ocean and southern Bering Sea (fromSpringeret al. 2003). (b) Data are the best estimates (circles) and 95% CIs from the best available survey data (details of data sources and model fitting are inSpringeret al. 2008).
