Species learning profile
Roundscale spearfish
Tetrapturus georgii
Roundscale spearfish (Tetrapturus georgii) is a saltwater fish associated with open ocean habitat in Atlantic. Scale shape helps experts distinguish it from white marlin.
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At a glance
- 水域
- 海水
- Habitat
- 远洋
- 最大长度
- 184 cm
- 分布范围
- 大西洋
- 科
- Istiophoridae
- 目
- Istiophoriformes
Observe
How to identify Roundscale spearfish
- Scale shape helps experts distinguish it from white marlin.
- Guide context: open ocean habitat in Atlantic.
- Reported maximum length: 184 cm — capable of growing longer than many people are tall. 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 Atlantic. With little fixed shelter, currents, temperature fronts, depth, and moving prey define its open-ocean world.
Behavior
Hunts in warm open water
Food-web connections
What it eats and why it matters
Diet
Fish and squid.
Ecological role
An elusive upper-ocean predator.
Remember
One fact worth keeping
Roundscale spearfish可长到约 184 厘米，常见于远洋附近。
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 Roundscale spearfish 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