Populations of migratory freshwater fish species—including salmon, trout, eel, and sturgeon—continue to decline across the globe. This decline risks the food security and livelihoods of millions of people, the survival of countless other species, and the health and resilience of rivers, lakes and wetlands. Populations of migratory freshwater fish species—including salmon, trout, eel, and sturgeon—continue to decline across the globe. This decline risks the food security and livelihoods of millions of people, the survival of countless other species, and the health and resilience of rivers, lakes and wetlands. Ecology Phys.org – latest science and technology news stories