New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Near Threatened 🍽️ Edible 🎣 Game Fish ⚠️ Venomous ⚡ Venomous 🌡️ Subtropical

Whip stingray

Hemitrygon akajei Müller & Henle, 1841
Hemitrygon Akajei (Hemitrygon akajei)
Hemitrygon Akajei (Hemitrygon akajei)
Max Length
200 cm
Max Weight
10.7 kg
Lifespan
Trophic Level
3.8
Depth
10–50 m
Climate
Subtropical
Resilience
Low
Vulnerability
74.00/100
Typical Length
100 cm
Depth Zone
demersal

📖 Overview

Found in coral reefs and estuarine areas, on sand and mud bottoms . Feeds on small fishes and crustaceans . Ovoviviparous with litters of only 1 pup while earlier estimates indicated production of up to 10 in a litter . Caught occasionally by bottom trawl fisheries operating inshore. Utilized for its meat but of limited value due to its small size. Served in 'miso' soup, hard boiled with seasonings, or for 'kamaboko' material .

Scientific Name
Hemitrygon akajei
Authority
Müller & Henle, 1841
Habitat
Marine
Climate
Subtropical
Body Shape
Other
IUCN Status
NT
Max Length
200 cm
Max Weight
10.7 kg
Depth Range
10–50 m
Trophic Level
3.8
Resilience
Low
Vulnerability
74.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Disc rhomboid, anterior margin straight, posterior margin convex. Snout triangular and slightly produced. dorsal keel present on tail. Adults with small spines on disc and posterior part of tail. Brown dorsally and some with orangish pectoral fin margins, in front of eyes, behind spiracles, on the sides of the tail just anterior to the sting. Ventrum orangish red.: other.

🌀 Behaviour

Behavioural data for Whip stingray is currently being reviewed.

🦐 Diet

Diet information for Whip stingray is currently being compiled.

🥚 Reproduction

Size at Maturity
44cm TL

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures . Distinct pairing with embrace .

🌍 Habitat & Distribution

Marine; brackish; demersal; oceanodromous ; depth range 10 - 50 m . Subtropical; 43°N - 23°N Northwest Pacific: central China to northern Japan.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Migration
Oceanodromous
Trophic Level
3.8±0.58
Food Items

small fishes and crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00447 × L3.12 (TL)
Max TL
200cm
Max Weight
10,700g

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
74.00/100
High vulnerability
Trophic Level
3.8
Predator
Body Shape
Other
Climate Zone
Subtropical
Described By
Müller & Henle, 1841

🍽️ Edibility & Flavour

"Whip stingray 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

Detailed nutritional data for Whip stingray is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Whip stingray 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

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 21 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Whip stingray ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.