A remotely piloted underwater glider is showing promise as a tool to track crabs in the Bering Sea, where their numbers have plummeted. The Alaska Department of Fish and Game and the University of Alaska Fairbanks have tested the glider Shackleton for the past three years to locate tagged crabs. The 6-foot-long glider, which is […]
The common practice of building dams to prevent flooding can actually contribute to more intense coastal flood events, according to a new study. The study, published in the Journal of Geophysical Research: Oceans, studied the effects of dams built in coastal estuaries, where rivers and ocean tides interact. Those massive infrastructure projects are surging in popularity […]
The ability of salmon hatcheries to increase wild salmon abundance may come at the cost of reduced diversity among wild salmon, according to a new University of Alaska Fairbanks–led study. The number of juvenile salmon released into the North Pacific Ocean by hatcheries increased rapidly in the second half of the last century and remains […]
New research has connected warming ocean temperatures to higher Pacific salmon abundance in the Canadian Arctic, an indicator that climate change is creating new corridors for the fish to expand their range. Salmon haven’t historically been seen in large numbers in the Arctic Ocean and its watersheds, but in recent years incidental catches by subsistence […]