Mike jones
Australia
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Nº49
Date: 2012-09-01 - 10:48
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Max Depth: 12.3m Duration: 53mins
Dive Location
- Dive type : recreational, photo
- Temp: Surf 14°C Bottom 14°C
- Visibility: Bad Water: Salt
Specific gear used
- BCD: Oceanic - Excursion 2
- Camera: Sealife - DC1400
- Regulator: Oceanic - Delta 4.2
- Regulator: Oceanic - CDX5 First Stage
- Camera: GoPro - Hero
- Computer: Oceanic - Geo 2.0
- Weights: 8.5 Kg
Recent Divers in North Head, Sydney
Dive Shop & Buddies
Dived with
Brad Kerslake
from
Pro Dive Manly
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Dive Profile
- Tank nº1
- Steel, 12L
- AIR mix
- Pressure: start: 200bar
end: 80bar - SAC: 1.2 bar/min
- RMV: 14.4 L/min
Data provided by EOL.org
Species Identified
Heterodontus portusjacksoni (Meyer, 1793) (Port Jackson shark)
A common shark of the continental shelves , from close inshore at the intertidal zone to 275 m . Segregates by sex and maturity stage . Nocturnal, hides in caves and rocky gullies during the day . Feeds on benthic inver...
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Apogon limenus Randall & Hoese, 1988 (Sydney cardinalfish)
Found in rocky estuaries to offshore reefs, usually in small aggregations .
Ophthalmolepis lineolata (Valenciennes, 1839) (Maori wrasse)
Found in coastal bays to offshore reefs, often in loose aggregations .
Parma microlepis Günther, 1862 (White-ear scalyfin)
Inhabits rocky reefs.
Orectolobus maculatus (Bonnaterre, 1788) (Wobbegong)
The sluggish spotted wobbegong spends much of its day lying motionless on the bottom or hidden in caves, under overhangs or in shipwrecks. At night, the shark becomes more active, and swims, or moves about the sea floor, ...
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Chromis hypsilepis (Günther, 1867) (One spot demoiselle)
Inhabits rocky reefs, occurring in small to large aggregations.
Goniistius vestitus (Castelnau, 1879) (Crested morwong)
Occurs in inshore and offshore rocky and coral reefs .
Eubalichthys bucephalus (Whitley, 1931) (Black reef leatherjacket)
Occurs on the continental shelf . Observed in pairs, secretly moving about in and out of holes among boulders .
Goniistius fuscus (Castelnau, 1879) (Red morwong)
Adults found on exposed rocky reefs down to about 30 m; juveniles on coastal reefs, amongst algae.
Aulopus purpurissatus Richardson, 1843 (Sergeant baker)
Parma unifasciata (Steindachner, 1867) (Girdled scalyfin)
Inhabits rocky inshore reefs.
Upeneus australiae Kim and Nakaya, 2002 (Australian goatfish)
Adults feed mainly on shrimp (47%).
Glossolepis maculosus Allen, 1981 (Spotted rainbowfish)
Inhabits high altitude (150-800 m) swamps and creeks. An egg laying species which prefer the following aquarium conditions: pH=7.8, H=12, 25°C water temperature.
Gymnothorax prasinus (Richardson, 1848) (Yellow moray)
Stays in holes and crevices. Feeds mainly on crabs and fish .
Upeneichthys lineatus (Bloch and Schneider, 1801) (Blue-striped mullet)
Inhabits sheltered bays and harbors , on sand and rocky substrates . Form schools . Preys mainly on small crustaceans .
Aluterus scriptus (Osbeck, 1765) (Unicornfish)
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Comments :
Opted to dive on the headland closest to the Quarantine Station to shelter from the very strong and bitterly cold southerly wind. Current was mild but visibility was very poor and silted up. However the sea-tulips and sponges at this dive site are outstanding - dense and colourful. Though the green water killed any chance of good photos. The highlight was a number of Moray Eels and an enormous Wobegong.
Water was very cold and one diver had to return early. Swam south around headland with rocks on left and turned at a bit over 100bar.
Port jackson sharks
Wobegong
Green Moray Eel x3
Black reef leather jackest in pairs
Blue lined goatfish
Crested Morwong
White nudibranchs
Maori Wrasse
Cardinal fish
Maori Wrasse
Girdled Scalyfin
Sergeant baker
Goatfish
Crimson banded wrasse
Unicorn Leatherjacket