Species learning profile
Blue shark
Prionace glauca
Blue shark (Prionace glauca) is a saltwater fish associated with open ocean habitat in Global. Long narrow pectoral fins carry it efficiently across ocean basins.
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At a glance
- Eau
- Eau salée
- Habitat
- Haute mer
- Longueur maximale
- 383 cm
- Répartition
- Monde entier
- Famille
- Carcharhinidae
- Ordre
- Carcharhiniformes
Observe
How to identify Blue shark
- Long narrow pectoral fins carry it efficiently across ocean basins.
- Guide context: open ocean habitat in Global.
- Reported maximum length: 383 cm — a genuinely giant fish. Maximum is not the same as typical adult size.
Field note: color, size, and markings can change with age, sex, season, depth, and lighting. Use several traits together.
Place and pattern
Where it lives—and how it behaves
Habitat and range
This species is associated with open ocean habitat across Global. With little fixed shelter, currents, temperature fronts, depth, and moving prey define its open-ocean world.
Behavior
Migrates widely along currents and temperature fronts
Food-web connections
What it eats and why it matters
Diet
Squid, fish, and carrion.
Ecological role
A highly mobile open-ocean predator and scavenger.
Remember
One fact worth keeping
Blue shark peut atteindre environ 383 cm et vit souvent près de Haute mer.
Think like a conservationist
A conservation lens
Wide-ranging ocean fish can cross many jurisdictions, so bycatch, harvest limits, and international cooperation matter.
This habitat lens is not a current population-status assessment. Status can differ among regions and change as new assessments are published; follow the reference links and local fisheries or wildlife agencies for current decisions.
Recall
Quick knowledge check
Which habitat is most closely associated with Blue shark in this guide?
Keep exploring
References and further reading
Fishdle summarizes stable identification and ecology concepts in plain language. Taxonomy and population knowledge continue to change, so use primary assessments and regional authorities for conservation or management decisions.
Make connections