Raising Awareness About Shark Safe Behaviour and Alternatives to Baited Drum Lines and Shark Nets

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Raising Awareness About Shark Safe Behaviour and Alternatives to Baited Drum Lines and Shark Nets Tony Isaacson recently posted these details on his Facebook page: – “I flag this video in the wake of Category 4 (fatal) human-shark incidents in Queensland (spearfisher, Fraser Island) and NSW (surfer, Wooli). Both incidents […]

Species sighted at Witton Bluff & Christies Reef

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Species sighted at Witton Bluff & Christies Reef by Steve Reynolds As reported in My Early Diving Days , Witton Bluff is the high point on the coast between Port Noarlunga and Christies Beach. It is named after the 1839 wreck of the David Witton. I did my first sea snorkel there […]

The Removal of Shark Parasites

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I recently saw some film footage on an episode of David Attenborough’s “Blue Planet II” showing several silky sharks, Carcharhinus falciformis, seemingly scraping parasites off of a whale shark, Rhincodon typus. It occurred to me that this was a form of fish cleaning to add to my growing list. I […]

The Lifespan and Maximum Length of Grey Nurse Sharks

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According to the Facebook posting at https://www.facebook.com/FisheriesWA/photos/a.264218617326814.1073741827.246412385774104/486516945096979/?type=3&theater , a tagged 2.5 metre grey nurse shark, Carcharias taurus, caught by a recreational fisher in WA had been caught and released by Fisheries scientists 23 years earlier. Back in 1995, the shark was nearly 1.9 metres long and it was estimated to […]

Port Jackson Shark Aggregations

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Recent aggregations of Port Jackson sharks at both Port Noarlunga and Aldinga created much interest in this annual event. I was encouraged to review past articles that were published in our newsletters back in 2006. Our September 2006 newsletter included this article: – “Port Jackson Shark Congregations” by Steve Reynolds […]