Several regionally critical marine sites in the Pacific Arctic sector that have very high biomass and are focused foraging points for apex predators, have been reoccupied during multiple international cruises. The data documenting the importance of these ecosystem “hotspots” provide a growing marine time-series from the northern Bering Sea to Barrow Canyon at the boundary…

The Pacific Arctic Region (PAR) is experiencing major reductions in seasonal sea ice and increases in seawater temperatures. A key uncertainty is how the marine ecosystem will respond to these shifts in the timing of spring sea ice retreat or delays in fall sea ice formation. Recent observations of reduced sea ice extent and duration…

Seasonal sea ice in the Pacific Arctic region has declined significantly, with large portions of this region becoming ice-free by mid-summer. This Pacific Arctic sector is also among the most biologically productive marine ecosystems in the world and acts as an important sink and perhaps seasonal source of carbon. Although sea ice is a dominant…

The Pacific Arctic region (PAR) has had the most spatially extensive loss of seasonal sea ice of any of the Arctic marginal seas. The northern Bering and Chukchi Seas are among the most productive marine ecosystems in the Arctic and are important carbon sinks and seasonal sources of organic materials. The recent shifts in sea…