SpongeBob Most South Australian’s experience with crabs involves eating them or catching them and usually if they are local they are our blue swimmer species. As divers we do see blue swimmer crabs in Saint Vincent’s Gulf but most crabs we see around jetties and reefs are way more interesting. We have spider crabs and […]
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The iridescent blue eyes of the Doughboy Scallop, (Mimachlamys asperrima), are little optical marvels. They are in fact more like tiny Schmidt telescopes than conventional eyeballs. The back surface of the scallop’s eye is like a mirror which reflects the incoming light back towards the lens opening. The light sensitive cells of the retina are […]
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Sepia apama, the Giant Cuttlefish, is the largest of the cuttlefish and a South Australian draw-card critter. Thousands of cuttlefish congregate to mate in the shallows at the top of Spencer Gulf each winter creating amazing opportunities for divers and snorkelers to observe their antics in only metres of water. This guy however lives out […]
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This poor guy is suffering war wounds of love as he and many other suitors battle it out for the available girls. There seems to be a lot of cuttlefish activity at the moment with both males and females engaging in all sorts of games. If you look closely here you will notice translucent lumps […]
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The Majid Spider Crab, (Leptomithrax gaimadii), is commonly seen critter in South Australian coastal waters. Equally at home in the sea grass, the rubble or on the jetty pylons, most of the time we see them as solitary scavengers or as mating pairs when the time is right. There is however a certain time of […]
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