Good addition? Or bad invader? Chinook Salmon in South America

Throughout North America, ongoing resource management and restoration projects aim to conserve Chinook Salmon because their populations have been threatened by many ecological factors, including habitat change, high harvest rates, and hatchery influence. In contrast, these fish are known as an invasive species in the Southern Hemisphere, having been introduced (and continuing to spread) to rivers of the Patagonia and Magellan regions of Chile and Argentina…