A Portland-based advocacy group called State of the Salmon has come up with a beautiful web tool to visualize the situation of 51 populations of sockeye that spawn in North America. There are maps, lists of the data, and a population plot similar to those used to great effect by Hans Rosling. One interesting insight from that plot: when it comes to the last 30 years, most sockeye stocks appear to be in one of two groups: rapidly increasing, or rapidly declining. There isn't any middle ground.
Via Eric Hess at The Daily Score