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Port Jackson Shark


Posted by ChrisRoss on Tue Sep 03, 2019 4:25 am

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Port Jackson Shark  Heterodontus portusjacksoni

Port Jackson shark (PJ) sitting under an overhang lined with colourful encrusting sponges at Oak Park a dive site near Cronulla south of Sydney, about 10m depth.

These small sharks come inshore to breed in the winter time, the females lay a large spiral egg casing and place it in crevices to hatch.  About a 1 - 1.5m long they are harmless and eat crustaceans and similar prey grinding them up with their teeth.  They lie about under overhangs and in crevices and caves during the day.

PJ Shark

Olympus OM-D EM-1 MkII + 12-40mm f2.8, Nauticam housing, INON strobes

1/160 @ f8 ISO250
Chris Ross
Sydney
Australia
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by Cynthia Crawford on Tue Sep 03, 2019 5:29 am
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What a beautiful portrayal- love the orange sponges and the whole environment. It seems to be looking at you, perhaps? I always wonder about the awareness of such creatures.
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by clement on Tue Sep 03, 2019 6:09 am
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Amazing image of this beautiful species
 

by Craig Lipski on Tue Sep 03, 2019 6:39 am
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Cool species, excellent comp, great colors in the environment. Love it.
Good light,
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by david fletcher on Tue Sep 03, 2019 11:59 am
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Wonderful sighting Chris!
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by rhighercat on Tue Sep 03, 2019 8:46 pm
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Interesting shark. nice colors in the background and good composition. Nice story also.
 

by Tom Whelan on Tue Sep 03, 2019 9:25 pm
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Nice light that brings out the contours of the shark. The sponge colors are beautiful.
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by Carol Clarke on Wed Sep 04, 2019 9:06 am
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Wonderful view of this beauty, Chris! Excellent detail, textures and colours - and it looks like you even got a smile for the photo! Great shot.

Carol.
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