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🌊 Marine Data Deficient 🍽️ Edible 🌡️ Temperate

Blackfin flounder

Glyptocephalus stelleri Schmidt, 1904
Max Length
52 cm
Max Weight
1.5 kg
Lifespan
23 yrs
Trophic Level
3.2
Depth
8–1600 m
Climate
Temperate
Resilience
Low
Vulnerability
58.00/100
Typical Length
34 cm
Depth Zone
demersal

📖 Overview

Blackfin flounder (Glyptocephalus stelleri), first described by Schmidt, 1904 is a large fish in the family Pleuronectidae (order Pleuronectiformes). Adults typically reach 52.00 cm in maximum length and up to 1.500 kg. Reported lifespan reaches approximately 23 years. It inhabits marine coastal and open-ocean environments. Recorded depth range: 8 to 1600 metres. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.The species is important as a food fish. As a member of the Pleuronectidae, it shares life-history and morphological traits with its relatives in the group.

Scientific Name
Glyptocephalus stelleri
Authority
Schmidt, 1904
Habitat
Marine
Climate
Temperate
Body Shape
Short and / or deep
IUCN Status
DD
Max Length
52 cm
Max Weight
1.5 kg
Lifespan
23 years
Depth Range
8–1600 m
Trophic Level
3.2
Resilience
Low
Vulnerability
58.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

: short and / or deep.

🌀 Behaviour

Behavioural data for Blackfin flounder is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
26.3cm TL

🌍 Habitat & Distribution

Marine; demersal; oceanodromous ; depth range 8 - 1600 m , usually 15 - 800 m . Temperate; 56°N - 35°N, 129°E - 164°E North Pacific: Sea of Japan, Tatar strait, and southern Kuril Islands to Kamchatka, West Bering Sea.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Oceanodromous
Trophic Level
3.2±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.14 (TL)
Max TL
52cm
Max Weight
1,500g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
58.00/100
High vulnerability
Trophic Level
3.2
Predator
Body Shape
Short and / or deep
Climate Zone
Temperate
Described By
Schmidt, 1904

🍽️ Edibility & Flavour

"Blackfin flounder is an edible species."

✓ Suitable 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

Detailed nutritional data for Blackfin flounder is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Blackfin flounder 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

Scientific Synonyms

Scientific Name Author Year Status
Glyptocephalus ostroumowi Pavlenko 1910 Synonym
Glyptocephalus sasae Snyder 1911 Synonym
Microstomus hireguro Tanaka 1916 Synonym
Microstomus stelleri Schmidt 1904 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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