Blue Marlin in Mauritius with Captain Vic

Blue Marlin Fishing in Mauritius: A Sport Fishing Paradise

Mauritius is one of the few destinations in the world where anglers can encounter all seven species of billfish: blue marlin, black marlin, striped marlin, white marlin, sailfish, spearfish, and swordfish. This island nation in the Indian Ocean is a true haven for big game fishing enthusiasts.

Blue Marlin: The Ultimate Trophy Fish

The blue marlin (Makaira) is the most sought-after game fish in Mauritius, especially during the summer fishing season from October to May. These powerful predators follow warm ocean currents, thriving in waters above 27°C, which makes Mauritius an ideal hotspot for blue marlin fishing.

Only the Pacific blue marlin species is found in Mauritian waters. They are known for their size, strength, and spectacular leaps, making them a favourite target for sport fishermen and deep-sea fishing charters.

Marlin Behaviour and Feeding Habits

Blue marlin are apex predators. They feed primarily on tuna, mahi-mahi, and other forage fish. In Mauritius, they face few natural threats, as larger predators like killer whales and great white sharks are absent. While Mako and bull sharks may occasionally attack marlins, such encounters are rare.

Breeding Season and Lifespan

Late summer marks the breeding season for the Pacific blue marlin. Females can spawn up to four times per year, releasing up to 7 million eggs in a single session. These fish mature quickly—reaching sexual maturity by the age of 2 and weighing around 100 lbs.

Males can live up to 18 years and weigh up to 350 lbs.

Females, which grow much larger, can live up to 27 years and weigh over 2,000 lbs.

The IGFA world record blue marlin weighed in at an astonishing 1,376 pounds.

Conservation and Sustainable Fishing Practices

While the global blue marlin population remains relatively healthy, it faces significant pressure from commercial longline fishing. In Mauritius, conservation-focused sport fishing is helping to protect this iconic species.

Many fishing charters, in collaboration with the International Game Fish Association (IGFA), practise catch and release—especially for young, healthy blue marlins. This ensures future generations can continue to enjoy this thrilling sport while maintaining a sustainable marine ecosystem.