Man evolved from Monkeys! Sharks! Bacteria?

This image is obviously all wrong now - Feh!

The latest headlines from the files of WTF science postings currently making the rounds is the, "Man is a Shark" storyline.

Gleefully picked up like a child's chewed play toy by shark-o-philes the world over it almost sounds like there's a new t-shirt design in the works.

But wait!

Yeah, you knew that was coming.

All this sceince-y stuff is just a back track on overall evolution is it not?

Gasp! You mean Man might have also evolved from say, bacteria?

Why yes, and not the pretty kind either.

That's the problem with headlines and sharks these days, almost any headline can be used to support the cause of shark conservation. The trick is checking the facts and seeing if they are relevant.

For many out there "relevancy" and "shark conservation" are two words that never seem to meet in the middle.

Oxy-Shark Myth anyone?

More from RTSea here.

About Shark Diver. As a global leader in commercial shark diving and conservation initiatives Shark Diver has spent the past decade engaged for sharks around the world. Our blog highlights all aspects of both of these dynamic and shifting worlds. You can reach us directly at sharkcrew@gmail.com.

RTSea on TOPP's - Brilliant Research

The RTSea Blog has full coverage on TOPP (Tagging of Pacific Predators) findings this morning.

Great reading and first rate research.

If you were curious about Pacific white shark movement data here it is.

In California, many people involved in ocean conservation are familiar with the ground-breaking work of Dr. Barbara Block and the program she started, TOPP (Tagging of Pacific Predators). Using various types of telemetry and satellite tags, the TOPP crew has tagged a variety of ocean animals, from sharks to tuna, to turtles and more. Doing so has enabled them to determine many of the key migration routes these predators take - quite often of a seasonal nature, traveling great distances back and forth between key locations year after year.

After 10 years of tracking using over 4,000 tags and accumulating data from over 23 different species, TOPP has released a final report of its findings in conjunction with the Census for Marine Life, published online in Nature. The report shows that migration patterns play a very crucial role in the lives of many ocean predators. Writing in the Washington Post, Julie Eilperin repeated TOPP's description of the eastern Pacific Ocean as being akin to Africa’s Serengeti, teeming with wildlife and crisscrossed by migration corridors used by sharks and seabirds. Two currents play a key role in the migrations: the California Current - which stretches from western Canada all the way south to Mexico - and the North Pacific Transition Zone - which travels east and west between the sub-arctic and subtropical water.

Complete post here.

RTSea Productions on OC Magazine

OC Magazine (Orange County California) is the gold standard for regional happenings and local interviews with highlights of OC luminaries.

One of these was our very own Richard Theiss from RTSea Productions who, for the past 30 years has been one of California's premier underwater and above water cameramen, directors, and production developers.

You can read the interview here, like his blog (which recently garnered the attention of Nat Geo Magazine) it's a great read.

Richard Theiss on OC Magazine.

The Theiss Factor - Genius is Genetic!

Last week the shark world lit up with the recent results from a study that said sharks are color blind.

Take that Yum Yum Yellow believers, we know it has been a hard week for you, but heck science ain't here so you can come up with crazy shark myths.

For us the exciting moment in this study was not the study itself but the team behind it and one name that stood out like a beacon - Dr. Susan Theiss of the University of Queensland.

Could it be that this Theiss was related in anyway to another well known Theiss at RTSea Blog and RTSea Productions?

A quick phone call to Richard Theiss at his home in California confirmed all our suspicions, "Yup, that's my niece", said a very proud uncle on the other end of the line.

What is it with Theiss clan and sharks?

You'll note that RTSea Productions was behind Island of the Great White Shark an award winning look at both shark tourism and research working in tandem at Isla Guadalupe, Mexico...and now this.

For those of you who read Richards blog you'll also note the uncanny scientific manner in which he distills complex issues down to a readable and digestible format, a trademark blog style that has rocketed Richards readership to one of the top Blue Blogs out there right now.

They say "Genius is Genetic". In the case of the Theiss clan the world is better for smarts like this and the shark world is benefiting as well, one groundbreaking study, and one groundbreaking documentary at a time.

Kudos!

Shark-Safe Beaches: testing aerial spotters and dismissing electro-magnetics

Starting 2011 out right with this report from RTSea Productions.

If you want concise industry thought and analysis this is your go to daily blog.

From RTSea:

When people enter the ocean - to swim, surf, dive, or just frolic about at the water's edge - they are entering a different wilderness. In doing so, they expose themselves to a measure of risk from interaction with other animals, from a sea jelly sting or an urchin spine all the way up to an interaction with a larger animal like a shark.

To protect people from unwanted shark interactions, several methods of prevention have been tried over the decades. In Australia, there is an extensive network of netted beaches. The steel mesh nets are designed with openings small enough to ward off large sharks but large enough to allow smaller fish to pass through. The nets have been used for many years and, in combination with lifeguards acting as shark spotters, the process has been fairly successful. But not infallible.

Sharks can get through the nets on occasion due to the nets being moved about from currents or storm action, so to maintain a big picture overview, spotter planes are being deployed in New South Wales (south eastern Australia) as part of a test program during peak months of swimming activity. And the NSW government in Australia has deployed a novel method to keep their spotter pilots' skill sharp. Decoy or replica sharks will be placed in the water to check the effectiveness of the surveillance program. Lifeguards will be made aware of the days and times for the placement of the replica sharks, but not the pilots. Results of the tests will be included in the final evaluation as to the aerial surveillance program future.

Far to the west, following a recent series of shark attacks in Sharm El-Sheikh, Egypt, a variety of safety measures are being considered. Nothing has been confirmed as yet because the government is weighing an appropriate response that also recognizes the probable causes for the attacks - reportedly everything from unregulated chumming to overfishing of the shark's usual preying to the dumping of dead sheep from a passing freighter.

One approach that apparently will not be used is something akin to electrified fencing. An organization, the Shark Academy, has proposed installing an electro-magnetic shield along the Egyptian coastline of Sharm El-Sheikh in the Red Sea, but the idea has been totally dismissed by the Governor of South Sinai, General Abdel Fadeel Sousha.

"He (the company's owner) showed us a video in a meeting in Sharm El-Sheikh on devices used to protect beaches from sharks and made verbal and purely theoretical proposals that didn't persuade me on a personal level," said General Sousha. "I asked him for a practical demonstration in front of a committee of experts so we could be sure the devices work effectively. This still hasn't happened."

A pretty far-fetched notion when you think about it. I have worked with divers who have used a protective device called a Shark Shield which emits a strong electro-magnetic pulse when needed and seems to be quite effective with medium-size sharks like lemon or blacktip sharks. But I've been told it also "rattles the teeth" of the diver when its discharged. So the idea of having something that strong running constantly across a beach seems rather unlikely.

Apparently, previous attempts at using electro-magnetic fields along beaches in Natal, South Africa and in Australia have been a dismal failure, not preventing the sharks from entering enclosed swimming areas but giving bathers a nice little shock instead.

Rather than rely on Rube Goldberg devices, common sense should prevail. Non-life threatening measures - such as nets and shark spotters - along with a better understanding and acceptance of the wild world we are venturing into is what's called for. While many of us hear the call to return to the sea, we must remember that we enter it as interlopers and strangers on someone else's turf.

Filmmaker's Journal: Mystery, a white shark never to be forgotten

From RTSea Productions:

In 2005, I began filming what was to become Island of the Great White Shark, a documentary on the white sharks of Isla Guadalupe, Baja and the important working relationship that exists between the shark diving operators and Mexican researchers.

It took several seasons of filming at Isla Guadalupe, returning year after year, looking to grab one more shot that was needed for editing - at least that was always the excuse. Actually, any chance I got to see these amazing predators first hand and up close, eye to eye - well, I took it.

During one particular trip to the island, during the second season of filming, I had one of those special encounters, the memory of which has stuck in my mind and I hope I never give it up. We had been seeing sharks all day and, as is the case at Isla Guadalupe in the latter part of the season, they were mostly large females. Due to the rough and tumble nature of shark mating, mature females are often badly scared. This comes from amorous males who secure their grip on the female prior to mating by biting her around the head and gills.

On this trip, I was filming within the cage - although I use that term rather loosely. Professionally, I tend to not use a cage but in my earlier years working with white sharks I would at least use the cage as a secure platform from which I would lean out into open water to get striking close-ups of the sharks as they pass by. Familiar and, for the most part, totally disinterested in the cages or the divers inside, the sharks, however, would become curious about this large protrusion (me!) extending from the cage into their domain.

Following a lull in shark activity, I was about to surface when out of the depths below a large female rose up to see what was going on. Attracted by the scent of fish (this was before restrictions were imposed on chumming), this 16-foot leviathan came into view and she was truly magnificent. At around 3,000 pounds, she was fully mature and perfect in shape and proportions, with hardly a scratch on her - absolutely stunning. I started to roll tape, hoping I would get a shot or two before she moved on.

Her name was "Mystery", given to her by researchers who have studied and cataloged the great white sharks of Isla Guadalupe. Sharks can be easily identified by various body markings and scars. Even the pattern of gray above and white below that runs along the side of the shark's body acts like a lasting fingerprint.

Mystery was quite curious with me and provided me with a wonderful close pass right in front of my lens before sniffing the bait floating in the water and then gliding off into the gloom, out of sight. "That was a really great shot," I thought.

And then she returned. Another close pass, another swing by the bait, and then you could see her cruise just along the edge of visibility. I was beginning to get a feel for her whereabouts, her preferred movement patterns, so I could anticipate her approach and ready myself for when she either approached the bait and then swung by to take another look at me, or vice versa.

Each encounter I expected to be the last and she would then move on to more interesting opportunities. But she stayed. And for the next hour and a half, I had an ongoing love affair with a gorgeous animal, the likes of which I have never seen since. When I returned home, I had marvelous new footage to add to my documentary. Mystery became the leading lady of Island of the Great White Shark and much of the natural beauty of these animals that I was able to convey to the viewer I owe all to her.

Mystery appeared the following season at Isla Guadalupe but, sadly, I have not seen her since nor have I heard of any reports of her being seen by other divers. The great white sharks of Isla Guadalupe are pretty regular in their migrations - from the island to the mid-Pacific and back again, over and over. It's been several years since I have last seen her and I worry that she may have met her end, perhaps at the hands of poachers or illegal shark fishing operations. White sharks are protected at Isla Guadalupe and within U.S. territorial waters, but their annual migrations take them well into unprotected waters.

Mystery. She may truly be a mystery now, but the memory of our brief time together - not as predator and prey, but as two intensively curious fellow creatures - will always remain as one of the highlights of my underwater filming career.

Island of the Great White Shark is available on DVD at Amazon.com and in gift shops at several major aquariums across the country. Learn more about the film and the white sharks of Isla Guadalupe at www.islandofthegreatwhiteshark.com.

RTSea Blog - Basker Warning Flags

From the RTSea Blog today, Baskers off the California coast have now been declared by NOAA.

So what does this mean?

NOAA, the U.S. National Oceanographic and Atmospheric Administration, took a slightly unusual step by declaring the eastern North Pacific's basking shark a "species of concern." While it sounds a bit like a suspect in an unsolved homicide, what the designation actually does is recognize that the basking sharks that migrate along the coast from Canada to the central coast of California are not recovering in numbers as expected since the taking of basking sharks commercially was curtailed in the 1970s.

The importance of a government scientific agency taking a step like this is that it essentially greases the wheels for marine scientists to consider the basking shark as a study subject. With NOAA's acknowledged concern, the designation can assist scientists in seeking funding for research projects.

Complete Post.

RTSea Productions - The Slippery Case of Jellies

Trying to get the attention of filmmaker Richard Theiss these days is like trying to nail jelly to a wall. When he's not moderating Blue Ocean Panel discussions on shark conservation at Monetery Bay he's off filming...jellies.

Sea nettles to be exact and a recent storm of them in Monetery Bay that has been garnering all sorts of attention. Which answers the question many had at the recent BLUE Oceans event as to why Richard was the only one in attendance with salty wet hair.

The man is always on the move either underwater or above it:

Sharks Bite Back Without Biting: study finds deadly bacteria

RTSea has an interesting take on sharks this week. Drug resistant bacteria?

Could be another reason not to eat these critters.

"Drugs given to humans could simply be excreted and eventually find their way into the ocean. Or bacteria in humans could acquire the resistance, be excreted, and then colonize fish that sharks eat, or the sharks, themselves. Some antibiotics are routinely dumped into aquaculture to help prevent infections -- that could be a source for some of the resistance."

Complete post.

RTSea Interview - Responsibility in Filmmaking

Richard Theiss took time out this week to share his thoughts on filmmaking, sharks and the industry.


"In speaking engagements, I have often said that shark conservation is a tough sell. To be sure, there are dedicated shark advocates who understand both the important role that sharks play in a healthy marine ecosystem and the many threats these animals now face – but that represents a small number compared to the general viewing audience. Sharks are not afforded the “warm and fuzzy” factor that many terrestrial animals enjoy – the cuddly bear, the cute fur seal, or the seemingly wise and sociable whale. Sharks can seem cold and, as predators, lie just below the surface – waiting for us. That’s a tough image to work around."

T-Minus Six Weeks to the Start of White Shark Season

In six weeks from now the crew of Sharks Diver will be at Isla Guadalupe beginning another spectacular commercial white shark season. This is the main even we have waited for all year long, another season with many of our favourite animals at the best site on the planet to interact with one of the oceans tops predators.

We have been fortunate enough to spend nine years here, and I have considered myself one of the most fortunate to own a company that allows me access to these magnificent animals year after year.

The 2010 season will feature an Underwater Boot Camp with Richard Theiss and RTSea Productions, offering novice to beginner underwater filmmakers the chance to film sharks and learn how to make documentary style films.

Here's a small sample of his work:

Sea of Cortez - Predator Nursery

As word slowly leaks out of the Sea of Cortez, what started as a hypothesis, has now become a full blown four alarm eco disaster.

The oceans have a new super predator that has migrated into the top of the food chain. Where once tuna and sharks selectively culled, these animals indiscriminately destroy everything in their path. This is a prime example of predator loss upsetting the natural balance of our oceans and it is happening right now.

From RTSea Productions and the RTSea Blog:

Guadalupe Island - Shark Conservation Video

Stunning images of great white sharks at Isla Guadalupe, Baja from RTSea Productions.

This video was compiled for Google Earth's new ocean layer. "Glimpses of Beauty" presents the most majestic and misunderstood ocean predator as it truly is: graceful and powerful - and critical to maintaining a healthy marine ecosystem.

To learn more, visit Google Earth's new ocean layer and visit www.rtsea.com.

Great White Sharks in Tennessee: aquarium to hold screenings of white shark documentary

From the RTSea Blog this week:

From time to time, I have the pleasure of speaking about shark and ocean conservation issues at various venues, particularly aquariums. Sometimes it is a formal affair - a screening of my white shark documentary, Island of the Great White Shark - and sometimes it is a more casual event, often including groups of younger children - the all-important next generation of ocean conservationists.

At the end of the month I will get to do both at the Tennessee Aquarium in Chattanooga, TN. I will arrive at the end of the month to do local media interviews and then on Friday, July 31st, I will be speaking with a group of Aquarium "day-campers" ages 7-10 and will conduct a private screening/Q&A with staff, volunteers, and patrons that evening.

On Saturday, August 1st, I will be conducting two public screenings and Q&A's with the Aquarium's visitors as part of their regular admission.

The Tennessee Aquarium is a marvelous venue in that it is essentially two separate aquariums - one building devoted to a worldwide examination of freshwater (and not just guppies and trout; how about 10-foot long beluga sturgeons!) and another for saltwater. I visited the Aquarium for the first time in June and was very impressed with its scope and the dedication of its staff in getting people to appreciate aquatic life not only in their backyard but globally.

So, if you are in the area, come visit the Tennessee Aquarium on Saturday, August 1st. As many aquariums do this time of year, the Tennessee Aquarium piggybacks on the popularity of Discovery Channel's Shark Week and I am happy to be part of their campaign to educate the public to the reality of sharks, their importance, and the threats and challenges they face.

Maybe I'll see you there!

To learn more about the Tennessee Aquarium, visit their web site. Click here.

Palau's Shark Shame - Tourism Blowback

RTSea's Blog summed up the recent shark conservation policy shift in Palau. As always they distilled this issue down to what matters and why:

Palau has been a favorite dive tourist destination for many years because of its wonderful reefs and bountiful fishlife. And the island has, in the past, taken active steps to protect its shark populations with aggressive action against illegal shark finning operations. All of these efforts have contributed to the island's tourist economy and sound conservation policy.

But that all could potentially be undone with recent legislation that was introduced to both allow for commercial shark fishing and allow for the use of purse seining - a method that brings in a large amount of by-catch. Palau commercial fishing interests have been working with Philippine fishing groups and the combined influence on Palau legislators has produced SB8-44 (which drops the ban on shark fishing) and SB8-50 (which drops an export tax on fish caught by purse seining).

According to FinsMagazine, the collective result of the laws would be:

• To permit and encourage the killing of sharks in Palau’s waters
• To promote shark finning
• To promote fishing methods that according to Monterey Bay Aquarium “result in large amounts of unintended catch” including sharks, dolphins, turtles, rays and juveniles:
  http://www.montereybayaquarium.org/cr/cr_seafoodwatch/sfw_gear.aspx
• To exempt fishing companies from any export taxes on fish taken from Palau’s waters
• To make it practically impossible for Palau’s law enforcement personnel to successfully prosecute alleged violators in the courts
• To risk destroying Palau’s sustainable tourism industry
• To risk destroying Palau’s marine resources through unsustainable practices
• To gamble on all of the above for no apparent gain to Palau or Palauans.

This issue has made the rounds of several shark blogs recently, but opinions from everyone - from divers to land-bound ocean advocates - are needed to remind the Palau government that the negative impact on tourism and the island's marine ecology will ultimately outweigh the short-term gains in a working relationship with Philippine commercial fisheries.

Email to make your voice heard:

Palau Chamber of Commerce (pcoc@palaunet.com)
Belau Tourism Association (bta@palaunet.com)
Palau Visitors Authority (pva@visit-palau.com) .

Australia's Shark Fishery - Grasping at Straws

From the RTSea blog this morning a look at the shark wolves in Australia and efforts to leverage recent shark attack media for broader shark harvest quotas:

Always on the hunt to increase their annual shark catch to satisfy the growing Asian demand, Australian fishery industry officials are continuing in their strategy to link three recent shark-human interactions with the need to expand on shark catch limits.

In an online article in The Australian, it was reported that in North South Wales, Australia's southeast territory and home to the three recent attacks, an increase in prey fish and Sydney Harbor's improved water quality may be a contributing factor to the number of attacks.

"NSW has worked very hard for the last couple of decades to try and ensure the sustainability of its fisheries. There is less fishing and the fishing is more controlled -- there is more abundant prey in Sydney Harbour and maybe more sharks because of this," said Rik Buckworth of the Northern Territories Fisheries Department. He also said other factors could be climatic changes and more swimmers at Sydney beaches."The number of shark attacks doesn't mean there are more sharks around, per se, but they're localized on the feeding schools," said Taronga Zoo shark expert John West.

So, you improve the marine ecosystem by improving water quality and control fishing, which increases fish populations (ie: getting back to normal) . . . and that's a bad thing?

Well, according to fishery industry spokesman Duncan Gay, it is as he is blaming conservation-friendly policies for increases in predatory sharks in NSW waters - once again, the fear factor. He said high shark numbers could be linked to "bad government policy in closing up large amounts of the fishery and changing fishing habits."

In another related article, Dr. Gilly Llewellyn of the World Wildlife Fund says, "The calls for an increase to the shark fishing quota in NSW are driven by this opportunism. Some fishers are using the current media feeding frenzy around sharks to call for an increase in shark hunting levels and are making claims that have no scientific basis. They should be ignored." And other Australian fisheries department officials say there is no evidence that fishing restrictions have led to more shark attacks.

Could improved marine environments lead to a higher number of sharks? It's possible. Could the three recent shark-human interactions be simply a statistical anomaly? It's possible. Could the fishing industry be on a witch hunt, drumming up excuses so as to increase profits? Most definitely.