We are colocating eDNA alongside high resolution physical and chemical hydrographic measurements to understand how Bering and Chuchki sea ecosystems are changing in a warming world. We this page will be populated with results from 9 cruises x 7 markers x >400 samples from 2020-2023, providing an important biogeographic baseline of our Alaska and Arctic marine microbial, phytoplankton, and zooplankton assemblages. We are also innovating autonomous eDNA samplers to enable under sea ice biodiversity observations, providing valuable insights into these marine ecosystems when it is nearly impossible to survey otherwise.