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🌊 Marine Least Concern 🍽️ Edible 🌡️ Temperate

Pacific rock sole

Lepidopsetta bilineata Ayres, 1855
Max Length
58 cm
Max Weight
1.8 kg
Lifespan
26 yrs
Trophic Level
3.2
Depth
0–575 m
Climate
Temperate
Resilience
Low
Vulnerability
68.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Adults occur over sand and gravel substrates to depths of 339 m; larvae collected over depths less than 1,000 m . Feed on mollusks, polychaete worms, crustaceans, brittle stars, and fishes . A tasty food fish; in some years commercial catch in Canada reaches 3,000 t .

Scientific Name
Lepidopsetta bilineata
Authority
Ayres, 1855
Habitat
Marine
Climate
Temperate
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
58 cm
Max Weight
1.8 kg
Lifespan
26 years
Depth Range
0–575 m
Trophic Level
3.2
Resilience
Low
Vulnerability
68.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 65 - 82; Anal spines: 0; Anal soft rays: 50 - 65; Vertebrae: 39 - 42. Dorsal origin over forward part of eye. Caudal with posterior margin a broad 'V'. Pectorals small and may be asymmetrical . Blind side white, with glossy highlights along myotome margins, increasing anteriorly. Pores: supraorbital 3-9; preopercular 5-7; lateral line 70-91. Interorbital space narrow .: short and / or deep.

🌀 Behaviour

Behavioural data for Pacific rock sole is currently being reviewed.

🦐 Diet

The diet of the rock soles consists mainly of zoobenthos organisms such as molluscs, crustaceans, brittle stars, marine worms and other fish.

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
34.7cm TL

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 575 m , usually 0 - 183 m . Temperate; 67°N - 34°N, 124°E - 119°W North Pacific: Baja California to the eastern Aleutian Islands and extreme southeastern Bering Sea.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.2
Food Items

mollusks, polychaete worms, crustaceans, brittle stars, and fishes (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00912 × L3.08 (TL)
Max TL
58cm
Max Weight
1,800g
Dorsal Rays
74
Anal Rays
58
Vertebrae
41

🌡️ 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
68.00/100
High vulnerability
Trophic Level
3.2
Predator
Body Shape
Short and / or deep
Climate Zone
Temperate
Described By
Ayres, 1855

🍽️ Edibility & Flavour

"Pacific rock 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
Baking Grilling Pan-frying

⚡ Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 16.9 g
Omega-3 (total) 339 mg

🔬 Mercury Safety

Mercury data for Pacific rock 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)

Proximate Composition
Energy90 kcal
Moisture80 %
Protein18 %
Total Fat1.2 %
Ash1.2 %
Fatty Acids (g)
Saturated Fat0.3 g
Monounsaturated Fat0.2 g
Polyunsaturated Fat0.4 g
Omega-3 Total0.3 g
EPA0.08 g
DHA0.15 g
Omega-6 Total0.05 g
Key Minerals & Vitamins
Calcium18 mg
Iron0.4 mg
Magnesium30 mg
Phosphorus200 mg
Potassium380 mg
Sodium60 mg
Zinc0.4 mg
Selenium30 µg
Vitamin B60.3 mg
Vitamin B121 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Rock Sole · Southern Rock Sole
🇩🇰Danish Pacifisk flynder
🇩🇪German Pazifische Scholle
🇫🇷French fausse limande du Pacifique
🇯🇵Japanese Shumushu-garei · シュムシュガレイ
🇳🇱Dutch Pacifische schol
🇵🇹Portuguese Solha-da-rocha
🇷🇺Russian Двухлинейная камбала
🇨🇳Chinese 雙線鰈

Scientific Synonyms

Scientific Name Author Year Status
Lepidopsetta bilineata bilineata Ayres 1855 Synonym
Platessa bilineata Ayres 1855 Synonym
Platichthys umbrosus Girard 1856 Synonym
Pleuronectes bilineatus Ayres 1855 Heterotypic
Pleuronectes perarcuatus Cope 1873 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 30 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Pacific rock sole ↗
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