Black Marlin
Istiompax indica
The black marlin is the largest billfish species and one of the most prized big game fish in the world. They are known for their incredible size, strength, and spectacular fighting ability when hooked.
Black Marlin at a glance
- Scientific name
- Istiompax indica
- Typical size
- 6-12 feet, 200-800 lbs
- Water
- Saltwater
- Habitat
- Offshore
- Rarity in the Fishdex™
- Legendary
Habitat
Black marlin inhabit tropical and subtropical waters of the Indo-Pacific, typically found in deep offshore waters near continental shelves and drop-offs. Anglers target them by trolling large lures or live bait in waters over 100 feet deep, often around seamounts, reefs, and temperature breaks.
Catch one and it is yours
Log a black marlin through the Cobia Camera and this entry fills in with your photo, your personal best, and the exact conditions on the day. The app also carries the slot and season rules for wherever you are standing.
How the Fishdex™ worksBlack Marlin questions people ask
Black Marlin is Istiompax indica.
A typical black marlin runs 6-12 feet, 200-800 lbs. Cobia records the length and weight of every black marlin you log and keeps your personal best on its Fishdex entry.
Black marlin inhabit tropical and subtropical waters of the Indo-Pacific, typically found in deep offshore waters near continental shelves and drop-offs. Anglers target them by trolling large lures or live bait in waters over 100 feet deep, often around seamounts, reefs, and temperature breaks. It is a salt water species, filed under offshore in the Fishdex.
Yes. Log one through the Cobia Camera and this entry fills in with your own photo, your personal best, and the conditions on the day you caught it. The app also carries the slot limits and season dates for wherever you are standing. It is free.
Tomorrow morning starts tonight
Set your home water, pick a drive radius, and wake up to a plan.
Android coming soon
iPhone, iOS 17 or later. Setup takes about a minute.