Small genetic difference determines Chinook salmon migration timing, new study shows “The annual migration of Chinook salmon up West Coast rivers from the ocean has enriched ecosystems, inspired cultures, and shaped landscapes. Yet the timing of their migration is controlled by one small section of their genome, according to research published this week in Science.  This is the first time scientists have linked a single gene region to such an influential difference in a vertebrate species. For salmon, it determines … Continue reading SCIENCE NEWS: Genetic differences and salmon migration timing; Invasive weeds and juvenile salmon predation; Designing a house fit for a fish; and more …