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Temp: Surf 28°C Bottom 28°C
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Dive type : Recreational
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Visibility: Average
Water: Salt
Specific gear used
- Wet suit: Oceanic - 0.5mm (Full)
- Weights: 2 kg
Recent Divers in Gili Trawangan
Recent Pictures in Gili Trawangan
Dive Shop & Buddies
Dive buddies:
Lynn Ee,
Vincent Heng
Dive Profile
- 1. Air
- 12L Steel
200 → 60 bar
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- Average depth: 20.3m
Data provided by EOL.org
Species Identified
Taeniura lymma (Forsskål, 1775) (Bluespotted ribbontail ray)
Blue-spotted stingrays live alone or in small groups , migrating in large schools into shallow sandy areas on the rising tide in order to feed, and dispersing back into the ocean as the tide falls to shelter in the coral c...
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Blue-spotted stingrays live alone or in small groups , migrating in large schools into shallow sandy areas on the rising tide in order to feed, and dispersing back into the ocean as the tide falls to shelter in the coral crevices of the reef . Feeding most commonly occurs during the day, but sometimes also at night , and the diet consists largely of worms, shrimps, crabs, molluscs and small fish . Prey is often detected through electroreception, a system which senses the electrical fields produced by the prey . Not all small fish and invertebrates are potential prey, as blue-spotted stingrays can often be found at 'cleaning stations', areas of reef where large fish line up and tiny fish or shrimp pick off their dead skin and parasites . In courtship, males often follow females, using their acutely sensitive 'nose' to detect a chemical signal emitted by the female that indicates she is receptive. Breeding occurs from late spring through the summer, and gestation can last anything from four months to a year . Reproduction is ovoviviparous, meaning females give birth to live pups that have hatched from egg cases inside the uterus . Up to seven pups are born per litter and each juvenile is born with the distinctive blue markings of its parents in miniature .
Chelonia mydas Linnaeus 1758 (Green Turtle)
Green turtles are long-lived and may take up to 59 years to reach sexual maturity Undertaking tremendous feats of navigation, adults return to the same beach to breed each season, part of the population in Brazil astonish...
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Green turtles are long-lived and may take up to 59 years to reach sexual maturity Undertaking tremendous feats of navigation, adults return to the same beach to breed each season, part of the population in Brazil astonishingly migrates around 2,250 kilometres across the open ocean to breed on the Ascension Islands . Mating tends to occur just offshore of the nesting beaches; using a curved claw on each front flipper and a flat nail at the end of the tail, males are able to grip their mates . Females haul out onto the beach at night and dig large nests with their back flippers beyond the high tide mark, they typically lay between 100 and 150 eggs in one nest and then proceed to cover the eggs with sand; the whole process takes around two hours . A single female returns to breed only once every two to five years but will lay up to nine nests in that one season . Incubation takes between 45 and 70 days, and temperature has been shown to determine of the sex of hatchlings; with females being produced at warmer temperatures . Breaking open their eggs with a special hooked 'egg tooth' that will subsequently be lost; hatchlings use their powerful front flippers to reach the surface, and then proceed to the sea . The soft-bodied juveniles are particularly vulnerable at this time from a variety of predators, such as ghost crabs and gulls on the beach to sharks and dolphins in the water . Unlike other marine turtles, adult green turtles are almost exclusively herbivorous, grazing on seagrasses and algae ; it is assumed that juveniles are more omnivorous although the exact composition of their diet is unknown
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.
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Kaiyi
Indonesia
Date: 2016-09-02 - 14:15
Max Depth: 30.4m Duration: 42mins
Dive with 347151 from Blue Marlin Dive Gili Trawangan
