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Record-setting temperatures and rainfall in the Arctic over the past year sped up the melting of permafrost and washed toxic minerals into more than 200 rivers across northern Alaska, threatening vital salmon runs, according to a report card issued by federal scientists.

Hundreds of Arctic rivers and streams are turning bright red-orange, not from chemical pollution, but from naturally occurring iron spilling from long-frozen ground as temperatures warm.

Recent anti-trawl op-eds in the ADN used half-truths to mislead Alaskans and influence public opinion about this critical Alaskan fishery. The misinformation and misrepresentation only serve to delay action that can meaningfully protect salmon.

Advancements in Artificial Intelligence forms such as computer vision, machine learning, and deep learning assist with processing data. The model was highly accurate at detecting pollock and salmon.

In the summer of 2019, ecologist Patrick Sullivan and a Super Cub plane pilot navigated over the narrow valleys of the Brooks Range in northern Alaska, winding toward the remote headwaters of the Salmon River.

When scientists Patrick Sullivan and Roman Dial were heading to a remote area in the Brooks Range in 2019 to map the spread of woody plants there, they were looking forward to seeing a celebrated river that author John McPhee described decades ago as having the “clearest, purest water I have ever seen flowing over rocks.”

When Nadia Barcelona releases a spoonful of orange-colored flesh into the water-filled tank, finger-length salmon swarm like little sharks. “You can really see them going crazy,” the Alaska Pacific University master’s student says.