“The status of Pacific cod is probably the biggest fishery issue facing Kodiak right now, with the quota cut 80 percent for 2018,” said Mike Litzow, a University of Alaska Fairbanks associate professor at the Kodiak Seafood and Marine Science Center. Pacific cod stocks have collapsed, possibly because recruitment (production of young fish to enter the […]
A new study has found that the seven planets orbiting the nearby ultra-cool dwarf star TRAPPIST-1 are all made mostly of rock, and some could potentially hold more water than Earth. The planets’ densities, now known much more precisely than before, suggest that some of them could have up to 5 percent of their mass […]
Researchers have discovered that thawing permafrost in the Northern Hemisphere stores twice as much mercury as the rest of the planet’s soils, atmosphere, and oceans. The finding has significant implications for human health and ecosystems worldwide. In a new study, scientists measured mercury concentrations in cores of frozen ground—or permafrost—from Alaska and used the data to […]
Archaeologists are a little like forensic investigators: They scour the remains of past societies, looking for clues in pottery, tools and bones about how people lived, and how they died. And just as detectives might re-create the scene of a crime, University of Washington archaeologists have re-created the weapons used by hunter-gatherers in the post-Ice […]