Evolution of fast-growing piscivorous herring in the young Baltic Sea - Nature Communications The Atlantic herring is one of the world’s most abundant vertebrates and a typical plankton feeder of major ecological importance. This study shows that a piscivorous (fish-eating) ecotype of herring ...

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#ecotype
#nicheexpansion

Sunday just so story

How a small herring with a supergene on chromosome 12 grew bigger, colonized the Baltic sea, became a predator and, instead of polluted zooplankton, started eating other 🐟 🐟, preferably three-spined sticklebacks.