Migration: Alaskan Trout Retire Early and Feed On Salmon Eggs To Avoid Ocean Predators

Posted by Nature World: Samantha Mathewson on October 31st, 2015
Nature World: Seasonal migrations are hard on fish that have to travel from their river homes to oceans and back each year. To avoid the hassle, older Alaskan trout opt for an early retirement at the point when they have grown big and strong enough to survive off of their own fat reserves, according to a University of Washington (UW) study. "As far as we know, no one has ever seen a population of large-bodied fish come back to freshwater and just park there for the rest of their lives," Morgan Bond, lead author......

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