Arrowtooth Flounder
Atheresthes stomias
Also known as: Arrowtooth; Turbot
Size & Weight
Average Length
20.4"
Max Length
34.0"
Average Weight
4.0 lbs
Max Weight
15.0 lbs
Lifespan
27 years
Habitat
Depth Range
60 - 3000 ft
Water Temp
38-46°F
Sandy/muddy bottoms; deeper water; continental shelf and slope
Behavior
Spawning Season
Winter-spring
Migration: Some seasonal depth movement
Diet: Fish (primary); shrimp; squid
Fishing Tips
PNW Season
Year-round
Techniques: Commercial trawling; occasionally recreational deep
Best Bait: Cut bait; fish
Eating Quality
Edibility
Poor (unless processed)
Fresh: soft/mushy; Processed: acceptable
State Records
Washington
6.65
lbs
Fun Facts
Large teeth; soft flesh problematic; abundant but underutilized commercially
How to Identify
Large teeth (arrowtooth); eyes on left side; brownish coloration; soft flesh; deeper water species; often found at 300-1000+ feet
Commonly Confused With
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Official Resources
Sources: WDFW; NOAA
Change History (Last updated Feb 02, 2026 at 10:33 AM)
| Date | Change | Old Value | New Value |
|---|---|---|---|
| Feb 02, 2026 10:33 AM | Updated Avg Length | — | 20.4 |