Species learning profile
Black seadevil
Melanocetus johnsonii
Black seadevil (Melanocetus johnsonii) is a saltwater fish associated with deep sea habitat in Global. A luminous lure draws prey within reach of its oversized mouth.
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At a glance
- پانی
- سمندری پانی
- Habitat
- گہرا سمندر
- زیادہ سے زیادہ لمبائی
- 18 cm
- پھیلاؤ
- دنیا بھر میں
- خاندان
- Melanocetidae
- رتبہ
- Lophiiformes
Observe
How to identify Black seadevil
- A luminous lure draws prey within reach of its oversized mouth.
- Guide context: deep sea habitat in Global.
- Reported maximum length: 18 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
Floats nearly motionless while luring prey
Food-web connections
What it eats and why it matters
Diet
Fish and crustaceans.
Ecological role
An energy-saving ambush predator in the deep sea.
Remember
One fact worth keeping
Black seadevil تقریباً 18 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 seadevil 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