Two-Spot Red Snapper in Mauritius (Lutjanus bohar)
Among the vibrant cast of characters that populate the coral reefs of Mauritius, the Two-Spot Red Snapper (Lutjanus bohar) — called Vivaneau à deux taches in French — stands out with unmistakable authority. A medium-to-large reef fish reaching up to 75 cm in length, this species combines striking colouration with a confident, predatory presence that makes every encounter memorable.
Identification and Appearance
The Two-Spot Red Snapper is immediately recognisable by its deep, brick-red to crimson body, which can sometimes take on a dusky reddish-brown hue in larger, older individuals. Juveniles display two prominent white or pale spots on the upper back, just behind the dorsal fin — a defining feature that gives the species its common name. As the fish matures, these spots may fade but remain visible on younger adults. The snapper has a robust, streamlined build with a pointed snout, strong jaws lined with sharp teeth, and large, luminous eyes that hint at its carnivorous lifestyle. Its fins are typically the same rich red as the body, and the tail is slightly forked.
Behaviour and Diet
This species is an apex predator on coral and rocky reefs, hunting a diverse menu of smaller fish, crustaceans, and cephalopods. Unlike some skittish reef fish, the Two-Spot Red Snapper is notably bold — it will often approach divers with apparent curiosity, hovering at close range before gliding away with effortless ease. It is frequently seen alone or in small, loose aggregations, patrolling reef slopes, drop-offs, and coral-rich shallows. Feeding activity intensifies at dawn and dusk, making early morning and late afternoon dives particularly rewarding for observations. Juveniles often shelter among branching corals and seagrass beds, providing additional encounters in shallower dive zones.
Habitat in Mauritius
In Mauritian waters, Lutjanus bohar favours the outer reef slopes, coral drop-offs, and lagoon-facing reef walls that characterise the island's diverse marine geography. It is commonly encountered at depths ranging from 5 to 70 metres, though most recreational divers encounter it between 10 and 30 metres. The species thrives in clear, warm Indo-Pacific waters — conditions that Mauritius delivers in abundance — and it is particularly associated with healthy hard coral habitats, where prey is plentiful and shelter is readily available. The island's protected marine parks and less-disturbed reef systems tend to host the largest individuals.
Ecological Importance
As a mid-level apex predator, the Two-Spot Red Snapper plays a vital role in maintaining reef ecosystem balance. By regulating populations of smaller fish and invertebrates, it helps prevent any single prey species from dominating the reef. Its presence is often used by marine biologists as an indicator of reef health — thriving populations of large snappers generally signal a well-functioning, biodiverse ecosystem. In Mauritius, the species is also targeted by local fishermen, making the protection of reef habitats and sustainable fishing practices especially important for its long-term survival.
Snorkelling and Diving Tips
To maximise your chances of a close encounter with the Two-Spot Red Snapper in Mauritius, consider the following tips:
- Dive at dawn or dusk when feeding activity peaks and the fish are most active near the reef surface.
- Move slowly and avoid sudden movements — despite its boldness, the snapper will retreat if approached aggressively.
- Look along reef walls and drop-offs between 10 and 25 metres for resting or patrolling adults.
- Check coral gardens for juveniles, which may be spotted in shallower snorkelling zones.
- Bring a macro lens or wide-angle setup — the vibrant red colouration photographs beautifully in natural light.
Whether you are a seasoned diver or a first-time snorkeller, spotting a Two-Spot Red Snapper gliding through the turquoise waters of Mauritius is one of those reef encounters that stays with you long after you leave the water.