Scientists identify genes that let fish survive in freshwater—a model for adaptation

Herring in the Baltic Sea have survived a radical environmental shift by acquiring genes from a Pacific species, allowing them to tolerate low-salinity water. The discovery maps the molecular basis of rapid evolutionary adaptation—insights potentially valuable for aquaculture, conservation, and understanding how species respond to climate-driven habitat change.

Originaltitel: Sperm, egg, and embryo proteins critical for genetic adaptation of herring to low salinity in the Baltic Sea