Figure 1

Pelagic trawl stations and physical conditions. Map of the Arctic Ocean (a) with trawl locations (
) in the Eurasian Basin in September 2021. Flow of Atlantic Water26 is shown with
and
denote the region shown in (c). Mean sea ice concentration during the survey (b). The pink arrow denotes the Transpolar Drift27 and
shows the 500 m bottom contour. Average 25–250 m depth ocean currents (
) in the survey (c).
show locations where acoustic data have been scrutinised and
show CTD stations. The maps were made using ArcGIS Pro 2.9.5 (https://www.esri.com/en-us/arcgis/products/arcgis-pro/overview).