Table 1. Characteristics of sub-regions of the European Artic Ocean.

Region	Stations (n)	Bottom depth (m)	Ice type	Water masses	Origin of data
Central Arctic Ocean	7	2500–4000	MYI	ArW, AtW (below 250 m)	[25]
Svalbard shelf break	8	300–3700	FYI	ArW, SMW, mAtW (below 50 m)	[18], [26], [27], K.O. unpubl
Fram Strait	11	1000–3200	FYI	ArW, AtW	[28], M.R. unpubl
NE Greenland shelf	6	250–310	FYI	ArW, SMW, AtW (below 100 m)	M.R. unpubl
Barents Sea Arctic	19	170–350	FYI	ArW, AtW (in trenches)	[11], [18], [26]
Barents Sea Atlantic	7	220–480	None	AtW	[11], [26]
NW Norwegian shelf	6	500	None	AtW, NCW	[29]

Ice types are multi-year ice (MYI) and first-year ice (FYI). Water masses are Arctic Water (ArW), Atlantic Water (AtW), Surface Melt Water (SMW), modified Atlantic Water (cooled and diluted; mAtW), and Norwegian Coastal Water (NCW), as defined by Sundfjord et al. 2007 [13].