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  • 50 # Date: 2012-09-07 - 11:14
  • # Max Depth: 20.4m Duration: 48mins
Diver's Notes

My 50th dive!
One-way drift-dive from The Leap to The Steps, Botany Bay National Park, Kurnell. Seas were flat and skies cloudless, warm and sunny. But the wind was picking up from the west adding a very small wind chop. However by the time we surfaced at The Steps, the clouds had rolled in and the wind was a stiff 30knots.

There was no sign of the usual Weedy Seadragons that are very common to this site but there were plenty of Port Jackson sharks along with outstanding corals and sponges with several nudibranchs.

Descending over the tumbled boulders we followed the sand line where it meets the kelp beds and rocks. for much of the dive at a max depth of 20m. In the last 1/4 of the dive we rose to shallower water over the boulders before surfacing at The Steps. The were no schools of fish but there were numerous individual fish among the rocks and corals.

Mado
Green Moray Eel
Crimson Banded Wrasse
Banded Sea Perch
Half-Banded Sea Perch
Starfish
Port Jackson Sharks
Hulla fish
Black Reef Leatherjackets
Old Wives
Blue Lined Goatfish
Senator Wrasse
Sparsely Spotted Stingaree
Maori Wrasse
Rock Cale
Herring Cale
One-Spot Puller
Immaculate Damsel
Girdled Scalyfin
White Ear

Dive Profile
Dive Location

  • Dive type : drift, photo
  • Temp: Surf 15°C Bottom 15°C
  • Visibility: Good 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
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Dive Profile

  • Tank nº1
  • Steel, 12L
  • AIR mix
  • Pressure: start: 225bar
    end: 80bar
  • SAC: 1.44 bar/min
  • RMV: 17.28 L/min
Data provided by EOL.org

Species Identified

Apogon limenus Randall & Hoese, 1988 (Sydney cardinalfish) Found in rocky estuaries to offshore reefs, usually in small aggregations .
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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Parma microlepis Günther, 1862 (White-ear scalyfin) Inhabits rocky reefs.
Ophthalmolepis lineolata (Valenciennes, 1839) (Maori wrasse) Found in coastal bays to offshore reefs, often in loose aggregations .
Gymnothorax prasinus (Richardson, 1848) (Yellow moray) Stays in holes and crevices. Feeds mainly on crabs and fish .
Achoerodus viridis (Steindachner, 1866) (Wrasse) Found in coastal rocky areas at depths to about 40 m . Max. length for female species . Protogynous hermaphrodite .
Hypoplectrodes maccullochi (Whitley, 1929) (Half-banded seaperch) Inhabits shallow coastal and estuarine rocky reefs . Common in sponge areas, sometimes in loose aggregations .
Atypichthys strigatus (Günther, 1860) (Australian mado) A schooling species, particularly common on coastal reefs in southern New South Wales . Also commonly found under jetties in harbors and large estuaries .
Trachinops taeniatus Günther, 1861 (Eastern hulafish) Occurs inshore near reefs .
Synodus variegatus (Lacepède, 1803) (Variegated lizardfish) Inhabits deep lagoon and seaward reefs to depths over 40 m ; sometimes found on sandy bottoms concealing itself in the sand. Prefers to rest on hard surfaces and frequently occurs in pairs . Benthic . Feeds on small fis...
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Enoplosus armatus (White, 1790) (Bastard dory) Juveniles live in estuaries while adults occur in estuaries and on inshore and offshore rocky reefs and seagrass beds . Found either in large schools, in pairs or as solitary individuals . Neither anterolateral glandular groove nor venom gland is present .
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.
Parma unifasciata (Steindachner, 1867) (Girdled scalyfin) Inhabits rocky inshore reefs.
Upeneus australiae Kim and Nakaya, 2002 (Australian goatfish) Adults feed mainly on shrimp (47%).
Crinodus lophodon (Günther, 1859) (Rock cale) Found on shallow exposed rocky shores, aggregating in high-energy zone, just below foaming surface to depths of about 10 m . Feed on either loose or attached weeds and algae .
Odax cyanomelas (Richardson, 1850) (herring cale) Occurs near the surface in high energy surf zones along rocky shores, these areas are often dominated by brown macroalgae.
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.
Pempheris compressa (White, 1790) (Small-scale bullseye) Usually found on offshore reefs, in large schools. Juveniles found on coastal reefs and near entrance of coastal estuaries with rocky reefs.
Pomacentrus coelestis Jordan and Starks, 1901 (Neon damsel)
Urolophus paucimaculatus Dixon, 1969 (Sparsely-spotted stingaree) Occurs on the continental shelf . Adults feed on worms, crabs, shrimp, and small bony fishes while juveniles take small crustaceans .
Pictilabrus laticlavius (Richardson, 1840) (green parrotfish) Inhabits rocky reef-algal habitats and occurs to as deep as 40 m .
Chromis hypsilepis (Günther, 1867) (One spot demoiselle) Inhabits rocky reefs, occurring in small to large aggregations.
Mecaenichthys immaculatus (Ogilby, 1885) (Immaculate damsel) Inhabits rocky or weedy inshore reefs.

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