Active acoustic data from Kongsfjorden, Svalbard

The presence of Arctic pelagic organisms during the polar night is poorly documented, especially as boreal Atlantic species are expanding their range northward. Patterns of diel vertical migration (DVM) of crustaceans enhancing the biological pump are characteristic, yet poorly known processes of high latitude fjords of Svalbard. This dataset was collected in Kongsfjorden, Svalbard, during January 2017 to document the distribution of pelagic organisms using acoustic instruments. An automated surface vehicle was equipped with an Acoustic Zooplankton and Fish Profiler (AZFP; 125, 200, 450, and 769 kHz) on January 14-21 and with a Wideband Autonomous Transceiver (WBAT; 70 kHz) on January 19 to document the backscatter signals from fish and zooplankton.