Species learning profile
Bowfin
Amia calva
Bowfin (Amia calva) is a freshwater fish associated with wetland habitat in North America. A gas bladder functions as a lung when warm wetlands lose oxygen.
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At a glance
- المياه
- مياه عذبة
- Habitat
- wetland
- أقصى طول
- 109 cm
- النطاق
- أمريكا الشمالية
- الفصيلة
- Amiidae
- الرتبة
- Amiiformes
Observe
How to identify Bowfin
- A gas bladder functions as a lung when warm wetlands lose oxygen.
- Guide context: wetland habitat in North America.
- Reported maximum length: 109 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 wetland habitat across North America. Shallow vegetation, seasonal water, and sometimes low oxygen make wetlands productive but demanding homes.
Behavior
Ambushes prey in slow vegetated water
Food-web connections
What it eats and why it matters
Diet
Fish, crayfish, insects, and frogs.
Ecological role
An ancient-lineage top predator in wetlands.
Remember
One fact worth keeping
قد يصل طول Bowfin إلى نحو 109 سم، ويوجد غالبًا قرب wetland.
Think like a conservationist
A conservation lens
Wetland drainage, water withdrawal, invasive species, and pollution can remove habitat faster than fish can relocate.
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 Bowfin 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