Phytoplankton abundances in the Arctic Ocean have been increasing over recent decades as the region has warmed and sea ice has disappeared. The presumptive causes of this increase were expanding open water area and a longer growing season—at least until now. Lewis et al. show that although these factors may have driven the productivity trends before, over the past decade, phytoplankton primary production rose by more than half because of increased phytoplankton concentrations (see the Perspective by Babin). This finding means that there has been an influx of new nutrients into the region, suggesting that the Arctic Ocean could become more productive and export additional carbon in the future.
Changes in phytoplankton concentration now drive increased Arctic Ocean primary production | Science
https://science.sciencemag.org/content/369/6500/198
There's a major change happening in the Arctic. Dark waters are blooming with algae, as sunlight floods spaces long obscured by sheets of ice.
Over the past two decades, there's been a 57 percent increase in phytoplankton in the Arctic ocean, an analysis by researchers from Stanford University has revealed.
A Major Food Chain Shift Appears to Be Happening in The Arctic Right Now
https://www.sciencealert.com/...ft-in-how-the-arctic-locks-up-carbon-and-nobody-knows-what-to-expect