Wild salmon are struggling to get their groove back. Along North America’s Pacific coast, salmon populations—already hit by overfishing—have been forced to dodge the Blob and hungry seals. For years, Canada has tried to help bolster the salmon population by releasing hatchery-raised juvenile fish, or smolts, into the wild.
Scientists know these hatchery smolts don’t do well in the wild—the fish tend to die younger than their wild brethren and reproduce less, but it’s unclear why.
In a recent study, however, researchers think they’ve hit upon a possible explanation.
LINK (via: Hakai Magazine)