It is unclear if it shares habitat, and thereby compete, with the introduced red king crab (Paralithodes camtschaticus), which is spreading southwest and have established local populations in some parts of Troms.The 2024 survey aimed to map the brown crab’s range and density, compare findings with other Norwegian regions (Vestland, Møre og Romsdal, and Trøndelag), and gather data for species distribution modeling.