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🌊 Marine Critically Endangered 🍽️ Edible 🎣 Game Fish 🌡️ Subtropical

Giant seabass

Stereolepis gigas Ayres, 1859
Max Length
250 cm
Max Weight
255.6 kg
Lifespan
75 yrs
Trophic Level
4.5
Depth
5–46 m
Climate
Subtropical
Resilience
Very low
Vulnerability
86.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Occur on rock bottoms; near shore, outside kelp beds and along drop-offs . Large specimens usually found deeper than 30 m, small ones over sand and in kelp beds mostly from 12-21 m . Aggregate for spawning in summer . Pelagic spawners . Longevity of 90 to 100 years stemmed from speculation on the age of a 557 lb fish caught in 1962, but the oldest age determined from otoliths of a 435 lb fish was 72 to75 years . Validated age so far is up to >50 years using bomb radiocarbon (A.H. Andrews, pers. comm.)

Scientific Name
Stereolepis gigas
Authority
Ayres, 1859
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
CR
Max Length
250 cm
Max Weight
255.6 kg
Lifespan
75 years
Depth Range
5–46 m
Trophic Level
4.5
Resilience
Very low
Vulnerability
86.00/100
Salinity
30–40 ppt

🐟 Physical Description

: fusiform / normal.

🌀 Behaviour

Behavioural data for Giant seabass is currently being reviewed.

🦐 Diet

Within kelp forests giant sea bass are the apex predator. Giant sea bass feed on crustaceans, as well as a wide variety of fish. For populations off the coast of California, anchovies and croaker are prominent food sources. Mackerel, sheephead, whitefish, sand bass, and several types of crab also make up the sea bass's diet. Despite their great size and bulky appearance, giant sea bass have been known to move extremely quickly, outstripping bonito.

🥚 Reproduction

Spawn Location
Pelagic

Pelagic spawner .

🌍 Habitat & Distribution

Marine; demersal; depth range 5 - 46 m . Subtropical; 41°N - 16°N Northwest Pacific: Japan (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
4.5±0.8

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
250cm
Max Weight
255,600g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2004

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
86.00/100
Very High vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Ayres, 1859

🍽️ Edibility & Flavour

"Giant seabass 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 20.1 g
Omega-3 (total) 273 mg

🔬 Mercury Safety

Mercury data for Giant seabass 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

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Black pacific jewfish · Black Sea Bass · California black sea bass · East Pacific Giant Sea Bass · Giant sea bass · giant seabass · Pacific back sea bass · Pacific Jewfish
🌍CES mnohopilák velký
🇩🇪German Kalifornischer Judenfisch · Riesenjudenfisch
🇫🇷French Bar gigantesque · Barréan géant
🇮🇹Italian Cernia gigante
🇯🇵Japanese Kokuchiishinagi · コクチイシナギ
🇳🇱Dutch Califomische grote zaagbaars · Californische jodenvis
🇵🇱Polish Strzepiel gigantyczny
🇵🇹Portuguese Garoupa-da-Califórnia · Mero-gigante-do-Pacífico
🇷🇺Russian Гигантский морской окунь · Окунь гигантский морской
🇪🇸Spanish Lubina Gigante · pescara · Pescara o Mero gigante

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 25 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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