Dorsal spines (total): 0; Dorsal soft rays (total): 75 - 85; Anal spines: 0; Anal soft rays: 55 - 68; Vertebrae: 42 - 46. Dorsal origin over anterior part of upper eye. Caudal with small elongation in center. Pectorals rather large with rounded tips.: short and / or deep.
🌀 Behaviour
Behavioural data for Flathead sole is currently being
reviewed.
🦐 Diet
aquatic invertebrates
small fish
algae
detritus
🥚 Reproduction
Size at Maturity
34.3cm TL
🌍 Habitat & Distribution
Marine; demersal; oceanodromous ; depth range 0 - 1050 m . Temperate; 51°N - 29°N, 97°E - 90°W North Pacific: Sea of Japan, Sea of Okhotsk, and the Bering Sea along the western coast of America to Pt.
Canada
🌿 Ecology
Zone Preferences
🌊 Marine⬇️ Benthic
Migration
Oceanodromous
Trophic Level
3.7±0.1
Food Items
clams, worms and crustaceans (Ref
📐 Morphometrics
Length–Weight Relationship:
W = 0.00708 × L3.11
(TL)
Max TL
52cm
Max Weight
1,600g
Dorsal Rays
80
Anal Rays
62
Vertebrae
44
🌡️ Water Parameters & Tolerance
Salinity Range
30–40ppt
🛡️ Conservation Assessment
IUCN Category
Least Concern
Assessment Date
2020
📊 Population Risk & Fisheries
Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
59.00/100
High vulnerability
Trophic Level
3.7
Predator
Body Shape
Short and / or deep
Climate Zone
Temperate
Described By
Jordan & Gilbert, 1880
🎣 Angling Guide
Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Techniques
bottom fishingpopping corksoft plasticslive bait
Bait & Lures
live shrimpcut mulletsoft plastic paddle-tailspopping corks
Recommended Tackle
medium-heavy 7ft spinning rod
30-50 lb braid
fluorocarbon leader
Where to Find Them
grass flats
oyster bars
marsh drains
deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
Regulations Summary
⚠️
Slot limits protect breeding-size fish. Verify daily bag limits.
🍽️ Edibility & Flavour
"Flathead sole is an edible species."
✗ Not for Raw
✓ Fresh Indicators
Clear, bright eyes — cloudy eyes indicate age
Firm flesh that springs back when pressed
Fresh ocean smell, never strong or ammonia-like
Bright red or pink gills, not grey or brown
Shiny, moist skin with scales tightly attached
✗ Avoid If
Cloudy or sunken eyes
Strong fishy or ammonia odour
Soft, mushy flesh that doesn't spring back
Discoloured or dry flesh
Best Cooking Methods
BakingGrillingPan-frying
⚡ Nutrition
Per 100g cooked - Source: USDA FoodData Central
Nutrient
Amount
Protein
16.8 g
Omega-3 (total)
368 mg
🔬 Mercury Safety
Mercury data for Flathead sole has not yet been
assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g
- Source: USDA FoodData Central templates (lean white fish average)