Species learning profile
Marlim-preto
Istiompax indica
Black marlin (Istiompax indica) is a saltwater fish associated with open ocean habitat in Indo-Pacific. Its rigid pectoral fins cannot fold flat against its body.
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At a glance
- Água
- Água salgada
- Habitat
- Oceano aberto
- Comprimento máximo
- 465 cm
- Distribuição
- Indo-Pacífico
- Família
- Istiophoridae
- Ordem
- Istiophoriformes
Observe
How to identify Marlim-preto
- Dark blue-black above and silvery below.
- Powerful and streamlined with a spear-like bill and tall front dorsal fin.
- Reported maximum length: 465 cm — a genuinely giant fish. 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 Indo-Pacific. With little fixed shelter, currents, temperature fronts, depth, and moving prey define its open-ocean world.
Behavior
Uses open ocean habitat for feeding, shelter, migration, or reproduction.
Food-web connections
What it eats and why it matters
Diet
A species-specific mix of plant material, plankton, invertebrates, or other fish.
Ecological role
It helps move energy across great distances in a food web with few physical boundaries..
Remember
One fact worth keeping
Marlim-preto pode chegar a cerca de 465 cm e costuma viver perto de Oceano aberto.
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 Black marlin 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