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Shark Nets: Who Needs 'Em | 🌊 '22 Coastcare Week 🌊

By Emily Mason posted 09-12-2022 09:30

  
On Landcarer for each day of the#CoastcareWeek22, we're highlighting different marine issues and topics! Today we're talking about Shark Nets!

On Monday 5th, a pair of hammerhead sharks were spotted inside the nets of Bondi Beach... once again raising questions about the effectiveness of shark nets - given the ease in which the pair of sharks managed to evade them. 
Ultimately, the safety provided by shark nets isn't enough to counteract the damage they cause to other species. A report released in July found more than 80% of wildlife caught in shark nets were non-targeted species.

Currently, in NSW, shark nets are installed across 51 beaches from Newcastle to Wollongong. At 150 metres long, six metres high and set at a depth of 10 metres, the nets don’t cover the full length of beaches and often the public don’t know where they are. Additionally, 2/5 in sharks caught in nets are found on the beach side of the net - and attacks still occur at meshed beaches. 

Laurence Chlebeck, from the Humane Society International, says the nets may not be very good at stopping target sharks but they are good at killing marine life. “The best guess I can give is some 20,000 marine animals have been killed in the program and what we’re now realising is that it’s for nothing more than a false sense of security,” Trebek says.

According to a recent Department of Primary Resources report on shark net performance, 376 marine animals were tangled in NSW nets in '21-22. That number included 51 “target sharks” and 325 “non-target animals”. Furthermore:

  • The target sharks included 28 white sharks, 12 bull sharks, and 11 tiger sharks
  • A fifth of the marine life caught in the NSW shark nets were threatened species
  • They included 14 critically endangered grey nurse sharks, 19 vulnerable green turtles, 16 endangered leatherback turtles, and four endangered loggerhead turtles. 


While NSW battles against the shark net tide, so too does QLD. In July, outcry rang through Queensland as another whale was caught in shark netting on the coast. The humpback was the third whale to get entangled in shark nets in Queensland this week – two of those at Kirra Beach on the Gold Coast. It was the fifth whale entanglement off the Queensland coast this year.

“In less than 72 hours, at the same beach, in the same shark net, another whale is entangled. It’s beyond a joke now,” said Dr Leonardo Guida, a shark specialist at the Australian Marine Conservation Society, who was at the scene this morning. Guida said the evidence for removing the nets was “overwhelming” and he found it “unbelievable” that whale entanglements continued to be allowed to happen every year.

Vanessa Pirotta, a postdoctoral researcher and wildlife scientist at Macquarie University, said she believed it was likely the refusal to remove the nets may be “politically driven”, particularly as scientists continue to work out why shark bites have increased since 1971.

“There is this conflict between the perception of public safety by having them there, and it means their removal might cause some worry,” she said. “On the one hand we want to offer people this sense of protection, and then on the other no one wants entanglements.

“The reality, however, is that they don’t actually cover the entire beach; the sharks can swim around and underneath them. They are outdated technology, and unfortunately there are a number of consequences to marine life.”

We share our waters... It's time to figure out a better solution.

Get involved in your local #CoastcareWeek22 activities, supporting marine life and it's beauty! 

TurtleWatch Beach Clean - Paradise Point, QLD | Dec 10th 7:30am-10:30am
Guided turtles walks will run simultaneously whilst rubbish is removed from turtle nesting habitats. As we collect rubbish, a TurtleWatch representative will run through how to conduct TurtleWalk so attendees can conduct their own independently and contribute to turtle data! Read more


Beach Safety Session (Ages 12+), Gold Coast QLD - Dec 10th 1pm-4pm
Join in a Free three-hour water safety program held in collaboration with Life Saving Victoria for people who live, study, work or recreate in Wyndham aged 12 years and above! Try a number of fun activities including a water safety talk, lifejackets, rescues, board paddling and beach games. Be prepared to get wet! Activities are specifically designed for non swimmers/ those with low swimming confidence with all equipment able to be used in shin/knee deep water where required. Read more

Dive Against Debris - Manly, NSW | Dec 11th 9am-1pm
Join our Ocean Connect marine science team on their fortnightly seagrass survey to actively monitor the status and trends in seagrass conditions around the Gold Coast. This event will be held at Carters Bank (Wave Break Island), we will be meeting at the Labrador boat ramp as access is via boat. Read more


Private Life of Marine Turtles NaturallyGC Kids (Ages 7-11), Gold Coast QLD - Dec 14th 9:30am-10:30am

Gain an insight into the lives of our most ancient living fossils—our sea turtles with a NaturallyGC Kids workshop! Through an interactive presentation this workshop focuses on the biology, ecology, threats, and conservation status of our marine turtles today. A major focus will be on marine debris and litter and addressing our plastic problem. Everyone will receive a sustainable ecofriendly gift to take home. Read more

Creatures of the Sea NaturallyGC Kids (Ages 6-10), Gold Coast QLD - Dec 14th 9:30am-10:30am
Discover amazing facts about extraordinary sea creatures. This interactive program will intrigue students while teaching the important message of caring for our environment. Get up close and touch live marine creatures and explore artefacts and games. Students will be surprised at the diversity of bizarre looking creatures in the ocean! Read more

Sea Slug Survey (Ages 16+), Burleigh Heads QLD - Dec 15th 7am-8am
Join our Ocean Connect marine science team on their weekly sea slug survey to record and identify sea slugs! Inhabiting the rocky shore habitat in Burleigh, assist on mapping the sea slug diversity of the area, nudibranch diversity and creating a species list for the Burleigh Heads Rocky Shores.
Read more



Article Attrition:
The Guardian 2022 | The Guardian 2022 b | The Guardian 2022 c | Oceangraphic Magazine

Photograph: TOM LOUBARDI
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