Sharks At Risk In Australia: tagged sharks may be victims of Western Australia hysteria

Researchers in Australia are trying their best to foster calm and rational thinking in the wake of five fatalities in Western Australia due to great white sharks in the past 12 months.  As the number of human-shark interactions increased, so did the demand for some kind of action to be taken by the Australian government.

It's really a classic and unfortunate case of public concerns for safety mixed with businesses concerned over loss of potential business that has fueled, ala Jaws, demands for action ranging from protecting beaches with shark nets and drum lines to actively pursuing sharks that are spotted close to shore to culling sharks in the hopes of reducing the potential for deadly encounters.

The media is subtly fueling the hysteria with reports (see below) of sharks "lurking" off local beaches.  Yes, lurking.  Not swimming  as they have for hundreds of thousands of years in oceans that were always meant for their existence, but lurking.

According to a report in Australia's Herald Sun, in September the Western Australia government authorized $4 million to use drum lines and track any sharks that come close to beach swimmers.  This decision came, in contradiction, on the heels of a government-funded report by Queensland's Bond University that found that drum lines provided no discernible measure of safety from sharks and, in fact, would succeed in catching many other unintended species.  Drums lines are floating drums anchored to the bottom with baited lines attached.  The idea behind them is that, unlike shark nets which are designed to prevent sharks from entering an area or that inadvertently ensnare them, drum lines are specifically designed to hook and kill a shark.

The random killing of white sharks threatens the efforts of researchers who tag and track sharks using various telemetry devices that can provide information on the shark's location.  In fact, the Western Australia government has even voiced an interest in killing tagged sharks when their studied movements bring them close to populated beaches.  But with ongoing tracking information of Western and Southern Australia's white sharks (a population reported to be only around 1,000), scientists can learn more about their movements - seasonal patterns, migration routes, and more - and in so doing can best advise as to methods that would provide for public safety while also protecting the sharks as they roam within the environment nature intended.

"Killing tagged sharks is the worst thing we could do right now,'' said Tim Nichol, marine coordinator for the Conservation Council of Western Australia. "We need to learn more about white sharks and these are the sharks giving us information about their movements.  It is very expensive and difficult to tag white sharks and only a small proportion of the population is currently tagged.''

I can hear the voice of Amity mayor Larry Vaughn, "Now you do what you have to to make these beaches safe, but these beaches will be open for business." 

Source: Herald Sun

A Busy (and Bad) Year For White Sharks: shark attack survivor makes a case for calm & conservation

This year has been an unusual one for white shark activity as far as their appearance in coastal ocean areas visited by humans.  There have been reports of white sharks with greater frequency along the California coast and the northeast, off Massachusetts.  And then there are the five fatalities that have occurred this year in Western Australia.

It is too soon to make the assumption that white shark populations have grown significantly since conservation measures have been put in place for both the United States and Australia.  That would take several years of reporting to establish a definitive trend.  Are there changes in the white shark's primary food source that might bring them into greater contact with humans?  Are there more people entering the water, thereby increasing the odds of an encounter?  Or is it all just a statistical anomaly and next year we will all be wondering whatever became of the great white shark?

It's just all too early to tell, but in an event like this, emotions can begin to run high and the demand for some kind of demonstrative, curative action mounts.  The Western Australia Fishing Minister, Norman Moore, is feeling pressure from some segments of the public and is looking into whether he would be justified in declaring, at least temporarily, a suspension of Australia's regulations against catching white sharks.  The thought is that a culling of sharks in local waters will solve the problem.  Typically, when such actions have been initiated, they produce a much greater loss of shark species than is in any way reasonable.  Often, all sharks, whether dangerous or directly implicated, become targets.

In today's online CNN Opinion section, there is a calm, well-reasoned commentary as to why Western Australia should not resort to a knee-jerk reaction in response to the unfortunate events that have occurred this year.  It is a particularly noteworthy opinion as it comes from Mike Coots, a surfer who lost a leg to an encounter with a tiger shark in Hawaii.

I prefer not to editorialize Mike's rational argument in this post, so take a moment and read what he has to say from his very unique perspective.  Click here.

Thanks, Mike.  I hope the good people of Western Australia can see things in the same light as you do.

Source: CNN Opinion

Western Australia's White Sharks: recent fatal encounters bring calls for shark witch hunts

With three fatal encounters with white sharks occurring in just the past few weeks, officials in Western Australia (WA) are reacting, or shall I say overreacting, by suggesting that efforts get underway to catch and kill the shark or sharks responsible.

In the end, this is nothing more than a political attempt to appease the public, to show that the government is doing something to ensure the safety of its citizenry. If Australian officials want to do something that is realistic, you close the beaches, do a shark survey of the area which includes tagging so as to better understand where local white sharks are traveling. And you re-educate, reinforce in the minds of the public that these waters do not belong to mankind; they belong to the animals that normally inhabit them. Man is the intruder, not the sharks.

As reported in the Science Network/Western Australia, shark experts are making their opinions known about any wholesale taking, or culling, of sharks. "WA Premiers Research Fellow and Professor of Neuroecology in the School of Animal Biology and UWA Oceans Institute, Professor Shaun Collin says the culling of any species of sharks is not the solution. 'Not only will this be indiscriminate killing of a protected Australian species (under both the EPBC Act and state legislation), there is no way of being sure the sharks caught will be those responsible for the attacks.'"

"Shark Ecologist within the Marine and Ecology Program at the South Australian Research and Development Institute Dr Charlie Huveneers says shark attacks are still very rare events with a low probability of occurrence. 'There is no scientific evidence to suggest that the short time period between the recent attacks is a reflection of an increased population of [great white] sharks,' Dr Huveneers says."The office for the Minister of Fisheries has reported that while the great white shark is protected under the Environmental Protection and Biodiversity Conservation Act of 1999, there is an exemption for the killing of a shark if a human life is in danger.

But one has to examine the actual application of such an exemption. Does it refer to defending a human who is about to be bitten or has just been bitten by a shark and, therefore, it becomes more a case of immediate self-defense? Or does it get broadly applied as a perverse preventative measure: mankind versus the shark, who has the greater right to be there in the ocean? Man?

It all seems to be taken right out of the script for Jaws: an incident followed by public outcry and officials trying to appear as if they are doing something to make the beaches safe once again.

“It sounds a little bit like taking revenge, and we’re talking about an endangered species,” said marine zoologist and shark researcher Barbara Weuringer of the University of Western Australia.

However, unlike the Hollywood movie, there isn't a shark swimming in the waters off Australia with a taste for human blood. While that can be said of rare documented experiences with other land predators like lions or bears, thereby necessitating the removal of that particular animal; it is not the case with sharks - ever.

Hopefully, shark experts will be able to have sufficient influence with government officials, so that some ridiculous oceanic witch hunt does not transpire. What has occurred in Western Australia is a statistical anomaly - to be sure, a tragic one - but an anomaly nonetheless. And tracking down and killing numbers of white sharks may, perhaps, quell any public outcry, but by no means will it guarantee that there won't be another shark-human interaction tomorrow.

If you would like to make your opposition to any shark culling in Western Australia brought to the attention of officials of the Australian fisheries department, David Shiffman of the RJ Dunlap Marine Conservation Program at the University of Miami, brought to my attention a petition site. Click here to visit the website.

Read about scientific opposition to shark culling in the Science Network/Western Australia.
Read more about the recent fatal shark encounters in Western Australia in The Washington Post.
Visit the Care2 petition website.

Man Bites Shark: a rational look at reports of increased shark encounters

For better or worse, this is the shark's time of year. Newspapers, magazines, television programming and news broadcast, and motion pictures - all forms of media jump on the bandwagon to herald the summer of the shark. Nearly one-third of my posts this month, so far, have been about sharks - and I wasn't even making a conscious choice to do so.

Fueling the annual fire this year about sharks - particularly any shark-human interactions - is the fact that there have been more human interactions with sharks. There are a multitude of reasons behind this, depending on the location and the shark species, but complex explanations are not the stuff of quick sound bites and hot-of-the-press headlines. However, without delving into the devilish details then people are left to fall back on simplistic reasons that plug into their primal curiosity mixed with fear of these animals: the number of sharks are growing; and they are out to get us.

And so, at the apex of the annual shark mania (or nadir, depending on your point of view), I present the calm, rational position statement - not from my hand but from The Washington Post's national environmental science write, Juliet Eilperin. Writing for Foreign Policy, Man Bites Shark is an overview of man's interaction with the shark world from the 1500s to today. It examines the reasons why more sharks, ranging from benign whale sharks to great white sharks, have been reported in the past few years, and why shark attacks increased by 25% in 2010.

In many respects, we are two species on a collision course. And the one steering the boat is mankind.

At first glance, sharks -- with their sharp jaws, torpedo-shaped bodies, and unusual sensing abilities -- appear to be bizarre vestiges of a distant past. But they can also tell us a lot about our present and our future. Where sharks appear in big numbers, coral reefs and other marine life around them thrive because they remove weak and sick animals from the system and can keep midlevel predators in check. When they shift their migrations, scientists often detect a shift in ocean temperatures and prey populations. For researchers seeking to create a more efficient electric battery, faster vessels, or a robot that can track oil and chemical spills underwater, sharks' sleek and extraordinarily efficient bodies offer inspiration for design. In countries where their fins end up at the dinner table, economists can generally find rising incomes. The animal humans fear most has become a global commodity, an economic indicator, and environmental harbinger of things to come.

In many ways, the movie character Matt Hooper was right on the money when he said, "All sharks want to do is swim, eat, and make little sharks." That can be said of almost every creature in the sea. It's mankind that has the multiple agendas that put us in touch with sharks, from tourism to fishing to research to storytelling.

In Man Bites Shark, Ms. Eilperin is the objective journalist, putting emotions aside - either pro-shark or anti-shark. Just the facts.

During the 20th century, the increase in shark attacks in Florida -- which leads the world in shark strikes almost every year -- closely tracked both the state's population rise and the number of people going to the beach, according to statistics compiled by the University of Florida's International Shark Attack File. In 1900, Florida's population stood at 530,000, and there was one unprovoked shark strike between 1900 and 1909; by 1950, the state had 2.77 million residents, and attacks that decade totaled 13; by 2000, when the population had soared to nearly 16 million, 256 shark strikes took place over the course of the decade.

Many of us familiar with sharks have heard this argument before: more people equals more shark encounters. Ms. Eilperin adds credibility by giving us the numbers. In addition, she adds balance to sensational reports of a mass schooling of blacktip reef sharks off Palm Beach, Florida; congregating whales sharks off the Yucatan Peninsula; or increased white shark sightings off the California coast.

Noteworthy, Man Bites Shark is not appearing at the check-out counter in People magazine; it's in Foreign Policy and so Ms. Eilperin turns her attention to the environmental and economic disaster we have visited upon the shark and some of the complex diplomatic jockeying that has been taking place amongst nations.

International trade and fishery management meetings have become a series of regional skirmishes. Japan and China have managed to torpedo trade protections at international fishery-management bodies for species ranging from hammerhead to porbeagle sharks, in part through forging alliances with smaller countries such as Grenada, Suriname, and St. Kitts and Nevis. But the United States has continued to press the case, along with both European officials and those from countries such as Palau and the Maldives, both of which have banned shark fishing in their waters.

Cheri McCarty, a foreign affairs specialist in the U.S. National Oceanic and Atmospheric Administration's Office of International Affairs, has spent the last two-and-a-half years negotiating over shark protections in the global arena, and she has gotten used to the weary reactions her presence can provoke. "There are times I'll go to meetings where people say, 'Oh no, not the U.S. pushing sharks again.' But slowly but surely, we have more allies on our side now."

If you are already bitten by the "I love sharks" bug, Man Bite Shark is no cure; it's a rational affirmation of a position that seems to be slowly growing. If you are on the fence and what you have been reading in the news or are about to watch on television this weekend gives you pause, then you should read Man Bites Shark, too. A little common sense between handfuls of popcorn or chewing your nails nervously wouldn't hurt.

Read Man Bites Shark in Foreign Policy.