Requiem sharks
Blue shark (Prionace glauca)
The Blue shark (Prionace glauca) belongs to the family Carcharhinidae (requiem sharks) and is found in the Red Sea, with a wider Indo-Pacific range. It is a carnivore and usually seen alone. It reaches about 335 cm and is found at 1–50 m depth. IUCN conservation status: Near Threatened. Treat it with caution (caution): do not touch or handle it.
Quick facts
| Scientific name | Prionace glauca |
|---|---|
| Family | Requiem sharks (Carcharhinidae) |
| Common name (IT) | Verdesca |
| Common name (EN) | Blue shark |
| Maximum size | 335 cm |
| Depth | 1–50 m |
| Distribution | Red Sea and Indo-Pacific |
| IUCN status | NT — Near Threatened |
| Hazard | Caution |
Description
Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.
Diving hazard — Caution: keep your distance, and never touch, corner or feed it.
Where it lives
Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.
- Red Sea
- Indo-Pacific
Diving safety
Caution. This is a predator or a fish with a strong bite. It is not looking for people — watch from a distance, do not touch, chase or feed it.
If it happens
- For a bite: leave the water, control bleeding with direct pressure, clean the wound.
After
- Marine bites infect readily — seek medical care and tetanus cover.
Frequently asked questions
- What family does the Blue shark belong to?
- The Blue shark (Prionace glauca) belongs to the family Carcharhinidae (requiem sharks).
- Is the Blue shark dangerous?
- It needs caution: Caution. Keep your distance and do not touch or handle it.
- Is the Blue shark endemic to the Red Sea?
- No — it occurs in the Red Sea but its range extends across the Indo-Pacific.
- How big does the Blue shark get?
- It reaches a maximum length of about 335 cm.