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Title: A long evolutionary reach for fishing nets
Adaptive evolution is not just the stuff of geological history books—it is an ongoing process across ecosystems and can occur on a year-to-year time scale. However, in a world rapidly changing as the result of human activity, it can be challenging to differentiate which changes result from evolution rather than other mechanisms ( 1 ). On page 420 of this issue, Czorlich et al. ( 2 ) reveal a fascinating example that suggests that commercial fishing drove rapid evolutionary change in an Atlantic salmon population over the past 40 years. Their findings are surprising in two ways—that fishing for salmon drove evolution in the opposite direction from what one would typically expect, and that salmon evolution also was affected by fishing for other species in the ecosystem.  more » « less
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344 to 345
Medium: X
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National Science Foundation
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