Species learning profile
Blue catfish
Ictalurus furcatus
Blue catfish (Ictalurus furcatus) is a freshwater fish associated with river habitat in North America. A deeply forked tail helps distinguish it from flathead catfish.
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At a glance
- 水域
- 淡水
- Habitat
- 河流
- 最大长度
- 165 cm
- 分布范围
- 北美洲
- 科
- Ictaluridae
- 目
- Siluriformes
Observe
How to identify Blue catfish
- A deeply forked tail helps distinguish it from flathead catfish.
- Guide context: river habitat in North America.
- Reported maximum length: 165 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 river habitat across North America. Flow, seasonal floods, connected side channels, and access to spawning reaches all shape its river habitat.
Behavior
Uses taste-rich barbels to forage in turbid water
Food-web connections
What it eats and why it matters
Diet
Fish, mussels, and crustaceans.
Ecological role
A large mobile river predator.
Remember
One fact worth keeping
Blue catfish可长到约 165 厘米，常见于河流附近。
Think like a conservationist
A conservation lens
River fish depend on connected water. Dams, blocked migrations, pollution, and altered flow can matter even when the channel still looks wet.
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 catfish 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