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🌊 Marine Least Concern 🍽️ Edible 🌡️ Temperate

Big skate

Beringraja binoculata Girard, 1855
Max Length
244 cm
Max Weight
91.0 kg
Lifespan
Trophic Level
3.9
Depth
3–800 m
Climate
Temperate
Resilience
Low
Vulnerability
86.00/100

📖 Overview

Largest skate in North America . Feed on crustaceans and fishes . Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother . Young hatch at 18-23 cm TL . Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats . Egg capsules are 22.8-30.5 cm long and 11.0-19.4 cm wide . Pectoral fins utilized for human consumption . Marketed fresh and frozen; eaten fried and baked .

Scientific Name
Beringraja binoculata
Authority
Girard, 1855
Habitat
Marine
Climate
Temperate
Body Shape
Other
IUCN Status
LC
Max Length
244 cm
Max Weight
91 kg
Depth Range
3–800 m
Trophic Level
3.9
Resilience
Low
Vulnerability
86.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0. Dorsal fins well back on tail, small; caudal and anal fins absent; pectorals broad, attached to snout and incorporated with body; pelvic fins large, moderately concave on free margins . Posterior sides of tail with a small fleshy keel on either side .: other.

🌀 Behaviour

Behavioural data for Big skate is currently being reviewed.

🦐 Diet

Diet information for Big skate is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Up to 7 embryos per egg case . Oviparous, paired eggs are laid. Embryos feed solely on yolk . Distinct pairing with embrace. Young may tend to follow large objects, such as their mother .

🌍 Habitat & Distribution

Marine; demersal; depth range 3 - 800 m , usually 3 - 110 m . Temperate; 61°N - 31°N, 165°W - 117°W North Pacific: Glubokaya Bay, Cape Navarin, and Stalemate Bank to Cedros Island, Baja California, Mexico.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.9±0.64
Food Items

crustaceans and fishes (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.24 (TL)
Max TL
244cm
Max Weight
91,000g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
86.00/100
Very High vulnerability
Trophic Level
3.9
Predator
Body Shape
Other
Climate Zone
Temperate
Described By
Girard, 1855

🍽️ Edibility & Flavour

Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked — Source: USDA FoodData Central

Nutrient Amount
Protein 15.8 g
Omega-3 (total) 665 mg

🔬 Mercury Safety

Mercury data for Big skate 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 big skate
🇩🇪German Riesen-Sternrochen
🇫🇮Finnish isorausku
🇫🇷French raie biocellée
🇮🇹Italian Razza grande
🇷🇺Russian Большой калифорнийский скат
🇪🇸Spanish raya bruja gigante · raya gigante

Scientific Synonyms

Scientific Name Author Year Status
Dipturus binoculata Girard 1855 Synonym
Raja binoculata Girard 1855 Synonym
Raja bituberculata Girard 1855 Synonym
Raja cooperi Girard 1858 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 20 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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