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Surface interval:57 mins
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Temp: Surf 31°C Bottom 29°C
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Dive type : Recreational, Drift, Reef, Photo
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Visibility: Good
Water: Salt
Specific gear used
- BCD: Cressi Sub - Ultralight
- Boots: Cressi Sub - Isla
- Fins: Atomic Aquatics - Split Fins
- Weights: 4 kg
Recent Divers in Maamigili
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Dive Profile
- 1. Air
- 12L Steel
200 → 60 bar
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- Average depth: 12.2m
Data provided by EOL.org
Species Identified
Carcharhinus amblyrhynchos (Bleeker, 1856) (Gray reef shark)
Occurs on continental and insular shelves and oceanic waters adjacent to them . Common on coral reefs, often in deeper areas near drop-offs to the open sea, in atoll passes, and in shallow lagoons adjacent to areas of str...
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Occurs on continental and insular shelves and oceanic waters adjacent to them . Common on coral reefs, often in deeper areas near drop-offs to the open sea, in atoll passes, and in shallow lagoons adjacent to areas of strong currents . Coastal-pelagic near the bottom, near drop-offs at 1-275 m . Forms daytime schools or aggregations in favored areas . Although active during the day, it is more active nocturnally . Viviparous, with 1-6 pups . Feeds on reef fishes, squids, octopi, crabs, lobsters and shrimps . Tends to be aggressive under baited conditions and readily enters into a frenzy feeding pattern, at which time it may become quite dangerous. Repeatedly incriminated in human attacks. Utilized for human consumption, fishmeal, and other shark products. Minimum depth from Ref. 6871. Maximum length of female taken from Ref. 5213.
Triaenodon obesus (Rüppell, 1837) (Whitetip reef shark)
Despite its docile nature during the day this nocturnal shark can become aggressive when hunting at night, thrashing through coral reefs looking for potential prey. The whitetip reef shark usually hunts alone, but is non-t...
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Despite its docile nature during the day this nocturnal shark can become aggressive when hunting at night, thrashing through coral reefs looking for potential prey. The whitetip reef shark usually hunts alone, but is non-territorial and will occasionally work in cooperation with others in the pursuit of prey . Feeding primarily on bottom-dwelling octopus, lobsters, crabs and bony fish, it often chases its prey into a crevice before jamming its body in after it, sealing the exit . The extremely posterior location of the first dorsal fin compared to those of other sharks is an adaptation to this feeding habit, which allows them to get their heads and mouths much further into the gaps and holes in the coral . The whitetip reef shark's mating season varies with location . Reproduction is viviparous and after a gestation period of around a year the female will give birth to one to five live pups, which are completely independent at birth . Both sexes reach sexual maturity at approximately 5 years old, and it is estimated that this species can live to an age of 25 years .
Lepidochelys olivacea Eschscholtz 1829 (Olive Ridley Turtle)
Although they do also nest alone, olive ridleys are known for their remarkable mass nestings, when many thousands of females congregate on the same beach; the event is known as an 'arribada', which is Spanish for 'mass arr...
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Although they do also nest alone, olive ridleys are known for their remarkable mass nestings, when many thousands of females congregate on the same beach; the event is known as an 'arribada', which is Spanish for 'mass arrival' . Males and females migrate from the feeding grounds and mating occurs just offshore of the beach . Usually at night, and coinciding their nesting with the high tide, females haul out on their natal beach and lay clutches that typically contain around 110 to 120 eggs . These astonishing mass nestings can involve up to 150,000 females and there may be more than one arribada on a single beach; this overcrowding means that turtles are often crawling over each other to move up the beach and may even unearth other nests whilst digging their own . During one season a female may lay two to three clutches of eggs, returning to breed every few years . After around 50 to 60 days, the hatchlings emerge and make their chaotic dash to the sea . Predators such as jackals and crabs will feed on turtle eggs, whilst birds attack hatchlings on the beach and fish wait in the shallows . These arribadas probably function to increase hatchling survival by overwhelming predators with sheer numbers . Adult olive ridleys are carnivorous and feed on a wide variety of organisms including fish and molluscs ; sometimes diving up to 150 metres in search of prey . Very little is known about the first years of life but juveniles probably spend a number of years floating on the ocean currents and feeding on planktonic organisms .
Cheilinus undulatus Rüppell, 1835 (Humphead wrasse)
Humphead wrasses are extremely long-lived, known to survive for at least 30 years, and taking around five to seven years to reach sexual maturity . Adults are usually solitary, spending the day roaming the reef and returni...
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Humphead wrasses are extremely long-lived, known to survive for at least 30 years, and taking around five to seven years to reach sexual maturity . Adults are usually solitary, spending the day roaming the reef and returning to particular caves or ledges to rest at night . Very little is known about these fish; adult females are able to change sex but the triggers for this development are not known . Pairs spawn together as part of a larger mating group that may consist of over 100 individuals. The planktonic eggs are released into the water and once the larvae have hatched they will settle out on the substrate . Using their tough teeth, these fish are able to consume hard-shelled species such as molluscs, echinoderms and crustaceans . They are one of the few predators of species that destroy coral reefs, such as the infamous crown of thorns starfish (Acanthaster planci) .
Balistoides viridescens (Bloch and Schneider, 1801) (Titan triggerfish)
Occur in lagoon, seaward reefs and sheltered inner reef slopes . Juveniles often associated with isolated patches of branching coral or rubble of shallow sandy protected areas. Adults occur singly or in pairs on the slo...
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Occur in lagoon, seaward reefs and sheltered inner reef slopes . Juveniles often associated with isolated patches of branching coral or rubble of shallow sandy protected areas. Adults occur singly or in pairs on the slopes of deep lagoon or seaward reefs . Often hostile towards divers and may attack unprovoked when caring for eggs . Feed on sea urchins, coral, crabs and other crustaceans, mollusks and tube worms. Oviparous . Largest triggerfish; females are reported to have attacked divers when guarding their nest . Also caught with drive-in nets. Marketed fresh and dried-salted .
Sufflamen chrysopterum (Bloch & Schneider, 1801) (Halfmoon triggerfish)
Inhabit coastal to outer reefs. Habitats from silty lagoons to pristine outer reef walls . Occur in shallow lagoon and seaward reefs. Solitary and territorial. Feed on a wide variety of invertebrates. Also taken by drive-in nets . Oviparous . Monogamous .
Inhabit coastal to outer reefs. Habitats from silty lagoons to pristine outer reef walls . Occur in shallow lagoon and seaward reefs. Solitary and territorial. Feed on a wide variety of invertebrates. Also taken by drive-in nets . Oviparous . Monogamous .
Aluterus scriptus (Osbeck, 1765) (Unicornfish)
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David 'dibs' Bishop
Maldives
Date: 2021-10-20 - 11:07
Max Depth: 18.4m Duration: 55mins
Dive with Dive Oceanus Sun Island
Grey Reef Shark over reef top in distance, Drifted along with Turtle. Drift along wall looking in Blue predominantly as was Whale Shark in the area. Lots on unicorn fish large Napoleon Wrasse, Schools of triggerfish and several Titan Triggerfish