Pictures
No pictures for this dive
-
Dive type : Recreational, Training, Reef
Recent Divers in Oahu, HI
Recent Pictures in Oahu, HI
Dive Shop & Buddies
Dive buddies:
Brian Davis
Data provided by EOL.org
Species Identified
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...
Read More
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
Zebrasoma flavescens (Bennett, 1828) (Yellow tang)
Inhabits coral-rich areas of lagoon and seaward reefs from below the surge zone to about 46 m . Benthopelagic over rock at 1-81 m . Occurs singly or in loose groups and browses on filamentous algae. A popular aquarium f...
Read More
Inhabits coral-rich areas of lagoon and seaward reefs from below the surge zone to about 46 m . Benthopelagic over rock at 1-81 m . Occurs singly or in loose groups and browses on filamentous algae. A popular aquarium fish and the top marine fish export from Hawaii. Group spawning and pair-spawning by territorial males that court passing females were observed. Presence of a venom gland could not be determined despite the presence of distinct anterolateral grooves; this may be due to the loss of venom glands in adults .
Melichthys niger (Bloch, 1786) (Black triggerfish)
Arothron stellatus (Bloch & Schneider, 1801) (Blackspotted puffer)
Relatively uncommon in patch reefs and coral slopes near sandy areas of clear lagoon and seaward reefs. Juveniles occur in sandy and weedy inner reefs, adults on clear lagoons and seaward reefs . Juveniles inshore, usual...
Read More
Relatively uncommon in patch reefs and coral slopes near sandy areas of clear lagoon and seaward reefs. Juveniles occur in sandy and weedy inner reefs, adults on clear lagoons and seaward reefs . Juveniles inshore, usually on muddy substrates and often estuarine. Adults on deep slopes and range to outer reefs, sometimes swimming high above the substrate or just below the surface. Pelagic larvae may disperse over great distance and juveniles occur in subtropical zone . Enter estuaries . Considered as the giant among puffers reaching a total length well in excess of a meter.
Gymnothorax meleagris (Shaw, 1795) (Guinea moray eel)
Gymnothorax moringa (Cuvier, 1829) (Common conger)
A benthic and solitary species abundant in shallow rocky and grassy areas and on coral reefs; less common in turbid bays or harbors. Its bite is very dangerous . Active during the day, sometimes together with other pred...
Read More
A benthic and solitary species abundant in shallow rocky and grassy areas and on coral reefs; less common in turbid bays or harbors. Its bite is very dangerous . Active during the day, sometimes together with other predators. Feeds on fish and crustaceans . Marketed fresh and salted . Usually seen with its head protruding from a hole and the rest of its body concealed . Has been traded as aquarium fish at Ceará, Brazil .
Carcharhinus longimanus (Poey, 1861) (Oceanic white-tip shark)
The diet of the oceanic whitetip shark primarily consists of bony fishes such as tuna and mackerel, but also includes stingrays, sea turtles, sea birds, squid, crustaceans, mammalian carrion , and occasionally even rubbish...
Read More
The diet of the oceanic whitetip shark primarily consists of bony fishes such as tuna and mackerel, but also includes stingrays, sea turtles, sea birds, squid, crustaceans, mammalian carrion , and occasionally even rubbish that is disposed in the sea . The species is usually solitary, but will occasionally congregate in groups during 'feeding frenzies' where food is plentiful , such as around whale carcasses . However, if other shark species are encountered competing for the same food source, the oceanic whitetip shark usually dominates over them, and may become aggressive . This shark is often accompanied by remoras, dolphin fishes and pilot fishes, and reportedly demonstrates an unusual association with the shortfin pilot whale (Globicephala macrorhynchus) in Hawaiian waters . Although the exact reason for this shark swimming along with pods of pilot whales is unknown, it is suspected that oceanic whitetip sharks are following them to sources of squid, which the pilot whales are extremely efficient at locating . This species mates during the early summer in the north-western Atlantic and the south-western Indian Ocean, and females give birth to 1 to 15 live young approximately a year later . Reproduction is viviparous, with live young being born after being nourished by a placental yolk-sac that is attached to the uterine wall by umbilical cords . Sexual maturity is attained at an age of six to seven years for both sexes .
All the data in this dive will be erased (profile, notes, fish list...) and cannot be recovered. Are you sure?
You need to select at least one dive to import your dives in Diveboard.
This dive will be copied into your own logbook.
Please select which details you would like to keep.
This dive has been copied into your own logbook.
We are participating today in the startup contest Techcrunch Disrupt. Support Diveboard by voting for us!
All it takes is a click!
This popup will only show once. Don't forget to vote before closing it!
Matt Graham
United States
Date: 2013-09-18 - 13:33
Max Depth: 12.2m Duration: 38mins
Dive with Kim from Surf N Sea, Inc.
