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Observations
Species	Date Observed	Activity
broad whitefish (anadromous)	09/14/2025	Spawning Present

Comments: Caught seven Broad Whitefish (Coregonus nasus) in spawning condition. All fish had tubercules on their heads and eggs and milt was gravid and easily expressed from individuals. Female Broad Whitefish GSI was estimated to be 20%--25%. Fish were caught on the downstream side of the gill net at head of eddy and presumably migrating upstream.

Nomination Changes To The AWC
Region Map(quad) AWC Stream #	Stream Name	Action Taken	Species*	Comments
Arctic IKPIKPUK RIVER A-1 330-00-10700	Colville River	Updated hydrography arcs for stream or lake. Changes mouth point, channels and / or upper point locations.
Arctic IKPIKPUK RIVER A-2 330-00-10700	Colville River	Updated hydrography arcs for stream or lake. Changes mouth point, channels and / or upper point locations.
Arctic IKPIKPUK RIVER A-1 330-00-10700	Colville River	Extend upper reach of species in stream #	BCp
Arctic UMIAT A-5 330-00-10700	Colville River	Extend upper reach of species in stream #	BCp
Arctic UMIAT B-5 330-00-10700	Colville River	Extend upper reach of species in stream #	BCp
Arctic UMIAT B-4 330-00-10700	Colville River	Extend upper reach of species in stream #	BCp
Arctic IKPIKPUK RIVER A-1 330-00-10700	Colville River	Adding life phases, i.e., spawning, rearing to existing streams or lakes	BCs

Additional files included with this nomination.

View the area map for IKPIKPUK RIVER A1 (1,090 KB)

View the area map for IKPIKPUK RIVER A2 (1,260 KB)

View the area map for UMIAT A5 (1,243 KB)

View the area map for UMIAT B4 (1,267 KB)

View the area map for UMIAT B5 (1,207 KB)