Species learning profile
Black swallower
Chiasmodon niger
Black swallower (Chiasmodon niger) is a saltwater fish associated with deep sea habitat in Global. Its stretchable stomach can hold prey larger than the fish itself.
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At a glance
- پانی
- سمندری پانی
- Habitat
- گہرا سمندر
- زیادہ سے زیادہ لمبائی
- 25 cm
- پھیلاؤ
- دنیا بھر میں
- خاندان
- Chiasmodontidae
- رتبہ
- Perciformes
Observe
How to identify Black swallower
- Its stretchable stomach can hold prey larger than the fish itself.
- Guide context: deep sea habitat in Global.
- Reported maximum length: 25 cm — roughly ruler-length. 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 deep sea habitat across Global. Food is scarce and sunlight is absent or faint, favoring energy-saving movement and specialized senses.
Behavior
Engulfs rare large meals in deep water
Food-web connections
What it eats and why it matters
Diet
Fish.
Ecological role
An opportunistic predator where encounters are scarce.
Remember
One fact worth keeping
Black swallower تقریباً 25 سینٹی میٹر تک بڑھ سکتی ہے اور عموماً گہرا سمندر کے قریب ملتی ہے۔
Think like a conservationist
A conservation lens
Deep-sea animals often grow slowly, and recovery can be difficult after habitat disturbance or heavy fishing.
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 Black swallower 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