Onefin electric ray
📖 Overview
Occurs offshore on the shelf; also common on sandy and muddy bottoms at 20-115 m . Feeds mainly on polychaetes . Males reaches maturity at 18-23 cm TL, females at ca. 23 cm TL . Capable of giving a powerful shock . Incidental catch of trawlers . It is parasitised by the monogenean Electrocotyle whittingtoni in the gills .
🔬 Taxonomy
🐟 Physical Description
Small ray with an almost circular disc and an elongated caudal fin . Yellowish-brown above with yellowish patches on upper tail, yellow with brown margins below .: other.
🌀 Behaviour
Behavioural data for Onefin electric ray is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; demersal; depth range 20 - 183 m . Subtropical; 23°S - 36°S, 13°E - 32°E Southeast Atlantic: Cape of Good Hope to central Natal, South Africa.
🌿 Ecology
polychaetes (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Onefin electric ray is an edible species."
- 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
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Detailed nutritional data for Onefin electric ray is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Onefin electric ray has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Cape Numbfish · Cape Sleeper Ray · Onefin Electric Ray |
| 🌍CES | narcina kapská |
| 🇩🇰Danish | Kap-elrokke |
| 🇫🇮Finnish | kiekkotorkkurausku |
| 🇫🇷French | Poisson Engourdeur du Cap |
| 🇮🇹Italian | Razza elettrica del Capo · Torpedine del Capo |
| 🇳🇱Dutch | Eenvinsluimerrog |
| 🇷🇺Russian | Капская нарка |
| 🇪🇸Spanish | Pez Temblador del Cabo · Raya eléctrica del Cabo |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Astrape capensis | Gmelin | 1789 | Synonym |
| Raja capensis | Gmelin | 1789 | Synonym |
| Raja rapensis | Gmelin | 1789 | Synonym |
| Torpedo capensis | Gronow | 1854 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .
👥 Community & Contribute
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