📸 PhotoPhoto: Unknown author Unknown author · Public domain · Wikimedia Commons Source
Electric ray
Tetronarce nobiliana (Electric ray · Electric ray)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its electric shock of 220 volts matches the household outlet voltage in Korea (220 V) (Comparison).
- 💡 Its maximum length of 1.8 m is slightly shorter than the length of a bed (about 2 m) (Comparison).
- 💡 Its maximum weight of 90 kg is the weight of 4–5 bags of 20 kg rice (Comparison).
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
Site-computed relative index from recorded values; not a formal scientific metric.
📖 1. Overview
The electric ray is a ray that produces strong electricity from its body; juveniles live on soft bottoms or near coral reefs, while adults swim in midwater.
🦴 2. Anatomy & Morphology
It can deliver a powerful electric shock of up to 220 volts. In the South Pacific, males mature at a total length of about 60 cm.
🔍 3. Ecology & Behavior
It mainly feeds on bottom-dwelling and midwater bony fish and small sharks. Adults have been reported to migrate long distances, and it is ovoviviparous, with eggs hatching inside the mother to produce litters of up to 60 pups.
🇰🇷 4. Connection to Korea
No direct record connecting this species to Korea has been found.
📚 Sources & References
- • IUCN Red List LC (2021) — https://www.iucnredlist.org/species/116861529/116861706
- • IUCN Red List category LC — latest assessment at iucnredlist.org
- • catalogueoflife.org — 7BSJ6
- • iucnredlist.org — 116861706
- • wikidata.org — Q28146400
- • commons.wikimedia.org — File:Tetronarce nobiliana NOAA.jpg
- • fishbase.se — Tetronarce-nobiliana.html
- • Silhouette: PhyloPic — Ignacio Contreras · CC BY 3.0 (Congeneric silhouette — Tetronarce tremens)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.