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🌊 Marine Data Deficient 🍽️ Edible 🌡️ Subtropical

Longnose spurdog

Squalus blainville Risso, 1827
Max Length
122 cm
Max Weight
7.3 kg
Lifespan
-
Trophic Level
4
Depth
15–1500 m
Climate
Subtropical
Resilience
Very low
Vulnerability
68.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Found on the continental shelves and upper slopes. Depth range from 16-440 m , and from 300-780m in the eastern Ionian Sea . Forms schools. Off West Africa, water temperature and salinity where this species is often found ranges from 11-18°C and 36 ppt. (at 16 to 255 m depth), respectively. Feeds on bony fishes, like denticids, mackerel and percichthyids, as well as crabs, lobsters, and octopi. Ovoviviparous, with 3 to 4 young per litter. Utilized fresh, dried salted and smoked for human consumption.

Scientific Name
Squalus blainville
Authority
Risso, 1827
Habitat
Marine
Climate
Subtropical
IUCN Status
DD
Max Length
122 cm
Max Weight
7.3 kg
Depth Range
15–1500 m
Latitude
37°S – 50°N
Trophic Level
4
Resilience
Very low
Vulnerability
68.00/100
Water Temp
11–18 °C
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Longnose spurdog is currently being compiled.

🌀 Behaviour

Behavioural data for Longnose spurdog is currently being reviewed.

🦐 Diet

Diet information for Longnose spurdog is currently being compiled.

🥚 Reproduction

🐣 Ovoviviparous
Size at Maturity
57.1cm TL

Distinct pairing with embrace . Ovoviviparous, with 3 to 4 young per litter. Young born at about 23 cm .

🌍 Habitat & Distribution

Marine; brackish; demersal; depth range 15 - 1500 m . Subtropical; 11°C - 18°C ; 50°N - 37°S, 20°W - 38°E South Africa, Mozambique, Madagascar, Tanzania and India) and the Pacific (Australia, New Zealand, New Caledonia, Hawaii and northern Chile), as well as some records from the northwest Pacific and eastern Atlantic are based at least in part on Squalus mitsukurii and possibly other species.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
4±0.4
🐠 Schooling
Food Items

bony fishes, like denticids, mackerel and percichthyids, as well as crabs, lobsters, and octopi

📐 Morphometrics

Length–Weight Relationship: W = 0.00331 × L3.06 (TL)
Max TL
122cm
Max Weight
7,300g

🌡️ Water Parameters & Tolerance

Temperature Range
11–18°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
68.00/100
High vulnerability
Trophic Level
4
Apex / Top predator
Climate Zone
Subtropical
Latitude Range
50°N – 37°S
Described By
Risso, 1827

🍽️ Edibility & Flavour

"Longnose spurdog 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 19.2 g
Omega-3 (total) 436 mg

🔬 Mercury Safety

Mercury data for Longnose spurdog 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 Longnose spurdog
🇩🇪German Blainville-Dornhai
🌍ELL Γκριζοκεντρόνι
🇫🇷French Aiguillat coq · Aiguillat coq, Aiguillat galludo
🌍HEB קוצן חדגוני
🇮🇹Italian Spinarolo bruno
🌍MLT Mazzola tax-xewka · Ujatu
🇵🇹Portuguese Ferranho · Galhudo-cubano · Melga-de-ferrão
🇷🇺Russian Малая колючая акула
🇪🇸Spanish Galludo · Pinchuo
🌍SQI Peshkagen dy gjilperesh · peshkaqeni dyshtizash
🌍SRP Kostily · Pas kostelj
🌍TUR Mahmuzlu camgöz
🌍UKR Мала колюча акула
🇨🇳Chinese 刺鯊 · 棘沙 · 沙魚 · 高鰭棘鮫 · 高鰭角鯊

Scientific Synonyms

Scientific Name Author Year Status
Acanthias blainville Risso 1827 Synonym
Acanthias blainvillei Risso 1827 Synonym
Acanthicus blainvillii Risso 1827 Synonym
Spinax fernandezianus Guichenot 1848 Heterotypic
Squalus blainvillei Risso 1827 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 66 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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