The Dorsal Fin

The Conversation has an interesting article on the history of shark nets in Australia. The article, written by Christopher Neff, focuses primarily on the use of shark nets in the waters of New South Wales and gives a bit of history about how the nets first came to be. Neff also touches on the politics associated with the nets and the effectiveness of them in protecting humans from shark attacks.

Neff questions the effectiveness of shark nets noting that from 1937-2008 of the recorded shark attacks in New South Wales, 63% of them occurred at beaches using shark nets. He also points out that only one fatal attack has occurred at a netted beach in the state, but cautions that associating low fatality rates with the nets might be questionable, as there was a three year period in which the nets were removed and no fatalities were reported.

While the Neff certainly seems to lean in the direction of opposing the nets he admits that the issue of Australia’s shark nets is not a simple matter. Neff stresses the need for public safety measures and points out that the consequences from shark attacks can be “terrible.” However, he notes that public dialog and education are necessary to move away from outdated tactics that are leaving Australia behind.

You can check Neff’s full article at The Conversation.

NBC’s Today show has been fairly prolific with shark-related features over the past few weeks. The show recently interviewed C.J. Wickersham, a 21-year-old spearfisherman who was bitten by a 9′ bull shark (Carcharhinus leucas) off Florida’s Anna Maria Island last month.

Wickersham’s friend Connor Bystrum witnessed the bite and immediately jumped in to assist him back to the boat. Once Wickersham was aboard the boat his friends used a rope as a tourniquet. Wickersham was rushed to shore where paramedics were waiting thanks to 911 call from another of his friends on the boat.

Wickersham’s injuries required multiple surgical procedures at St. Petersburg’s Bayfront Medical Center, according to the Anna Maria Islander. He was released from the trauma center after 6 days and is expected to fully recover.

A new game based on the “Jaws” franchise is now available for iPad, iPhone, and iPod. “Jaws Revenge” was released yesterday and features classic side-scrolling gameplay. Players will control a rampaging great white shark, and it looks like the theme of the game is to eat, crash into, and/or blow-up everything in sight. Players will also be able to “upgrade” their shark, but alas, it does not seem that you can “frickin laser beams” on the shark’s head as an upgrade.

It appears that nothing in the water or the air is safe in this game, including massive yachts and hang-gliding thrill seekers. Fear not, though, this is just a ridiculous videogame, and the behavior of the ginormous rampaging shark in the game is not representative of actual white shark behavior.

“Jaws Revenge” is on sale now at Apple’s iTunes app store for $0.99.

Surgeons are crediting the quick response of bystanders with saving the life of British shark attack victim Michael Cohen. Cohen’s right leg was severed by a bite from a white shark (Carcharodon carcharias) while swimming of Fish Hoek beach in Capetown, South Africa.

The Daily Mail reports that Hugh Till and Douglas Drysdale, who were in the area trying to spot whales, witnessed the attack and entered the water to assist Cohen back to shore. Bystanders applied a tourniquet to Cohen’s leg using a wetsuit and belt quickly after he was brought to beach following the attack. Surgeon Andrew Nicol told reporters that the quick action and proper first aid applied by those on the scene helped saved Cohen’s life.

The UK’s Channel 4 News reports that lifeguards told Cohen not to enter the water, due to three white sharks being spotted over a 90 minute period. According to the report, Cohen told the lifeguards that he was going in and that they should blame him and not the sharks, in the event of an attack. As of yesterday, Cohen remains hospitalized, recovering from his injuries, according to The Daily Mail.

KHON2 reports that a veteran canoe paddler had a encounter with a shark that bit his canoe twice. Tom Bartlett was paddling about a half-mile from shore off of Kauai, Hawaii when the shark bit the front of his boat, released it and then came back and bit the canoe again. While Bartlett tells KHON2 that the shark wasn’t “ripping or tearing” at his canoe, the damage was enough to cause the vessel to take on water and begin sinking. Bartlett was able to paddle to shore despite the compromise to his canoe’s hull.

Bartlett did not know what kind of shark bit his canoe, but he says the bite marks indicate that its jaw was about 13-inches wide. While his canoe sustained some damage, Bartlett walked away from the encounter unscathed and was thankful that he himself was not bitten.