By freedivinguae

Freediving off Hawaii’s big island

Two minutes and 12 seconds.

That’s how long my spearfishing partner had been underwater on one breath. I last saw him descending past 100 feet, toward the 125-foot bottom. I floated on the surface, ostensibly as his safety diver, more realistically just praying that he would ascend out of the abyss. Soon. With each passing second a new and more terrifying scenario ran through my mind. Maybe he shot a fish and got tangled in the reef. Did he pass out on the bottom? What about that shark we saw?

Then, just as I was about to do … something … I caught a glimpse of him rocketing up from the depths. I swam over to meet him as his head burst above the waves. I was relieved he was OK.

Right up until his eyes rolled back in his head and he sank below the surface, dropping his gun.

I grabbed him and pulled his head back above water.

“Kyle! Kyle!” I yelled. His eyes opened and he took a breath.

“I’m good,” he said. But he wasn’t. His lips were blue, he was disoriented and weak. Kyle had experienced a shallow-water blackout. Essentially, he had fainted from hypoxia. On land, you might fall and bump your head. In the ocean, without help, you sink and die. While statistics are elusive since most deaths occur alone, it’s said that shallow-water blackout accounts for more than 99 percent of freediving deaths. Sharks, boat accidents – nothing else comes close.

It’s tragic because it’s so preventable. Just. Don’t. Be. Stupid.

Soon after watching my friend almost die – motivation I would not recommend – I did an uncharacteristically smart thing: I boarded a plane to freediving’s mecca, the west coast of Hawaii’s Big Island, to take a Freediving Instructors International level-one class, a course designed to make a very dangerous sport safe, or at least safer.

IT’S OFFICIAL: I’M AN IDIOT.

I met my FII instructor, Cory Fults, shortly after I landed. A 24-year-old underwater photographer with male supermodel looks and the modesty of a guy who genuinely doesn’t know he looks like a supermodel, Fults — who grew up in Newport Beach before moving to Hawaii to pursue the sport — spends four to six hours in the ocean every day.

Like many other world-class freedivers, Fults moved to Kailua-Kona for the ocean conditions. Because the island is the youngest in the chain, it hasn’t had time to build up many sandy beaches or mature coral reefs. This means the water is very clear and very deep mere yards from shore.

“Plus, the island is so large that it blocks the trade winds, so ocean conditions are smooth and perfect most days of the year,” Fults tells me.

Then there is the abundant sea life; Kona has long been fabled for its world-class sportfishing. So, whether you’re a spearfisherman or just want to swim with large ocean animals like dolphins, whales and sharks, Kona is the place. Most people take up freediving for one of those two reasons, many defecting from scuba: You’re not getting near dolphins or gamefish sounding like a bubble-blowing Darth Vader.

It might seem that freediving is so dangerous because we air-breathing, finless humans are ill-equipped for the ocean. You’d be wrong, says Fults. Freediving is dangerous because most humans are idiots (I’m paraphrasing). One, we do really stupid things like diving alone and pushing our limits. Two, we don’t properly use our natural gifts.

In fact, humans have been freediving since long before the advent of $700 wetsuits and custom-made monofins. There’s evidence of freediving activity dating back 4,500 years, and Greek historians write of freedivers recovering treasure and sneaking behind enemy lines.

The point, says Fults, is that the best equipment humans have for freediving is their own physiology, specifically something called the mammalian diving reflex: When our face is submerged in water, our heart rates slow, blood is diverted from the extremities to our vital organs, and blood vessels constrict. This allows us to dive longer and more safely. It’s how world-record holder Herbert Nitsch was able to dive to 831 feet on a single breath.

“We’re not as good at it as whales or dolphins, but we’re pretty good,” says Fults.

The better part of the next two days are dedicated to attaining and retaining this state, along with learning how to make freediving as safe as possible. That is why world-record freediver and Kona resident Martin Stepanek founded FII. He saw too many needless deaths and contends that when done with proper training, knowledge and safety precautions, freediving can be as safe as surfing, sailing or soccer. I tell Fults that I have received stitches in all three of those endeavors.

There’s an awkward silence. We move on.

After working on diaphragmatic breathing to slow my heart and calm my mind, the proper technique for breaking the surface and a dozen other things I’ve developed horrible habits for, I’m ready (very relative term) to hit the ocean for some line diving – literally diving down and up a line.

We travel a few miles down the coast to Honaunau Bay, a bite out of the coast that’s a favorite among freedivers. So frequented is Honaunau by freedivers, there are three permanent mooring lines at various depths. We swim the 75 yards out to the first one, in 160 feet of water, to tie off our float, then drop a weighted line to 80 feet. The short swim takes a while, though, since we run into dolphins and I spend many awe-inspiring moments diving and swimming with them. The dolphins do laps in the bay, making them easy to get near.

Fults says this has become a problem because they use the bay to sleep, which means turning off half their brain while leaving on the other half to identify predators. The contrast created by the sandy bottom of the bay, one of few on the island, makes it easy for them to spot predators. It also means that tour boats and bozos like me can easily find them for GoPro selfies, disturbing their rest.

“If they can’t rest, it makes them less successful hunters, which could lead to survival issues,” says Fults.

Way to kill a dolphin buzz, bro.

At the line, Fults tells me to remove my mask but keep my snorkel in my mouth, and submerge my face for five minutes while practicing relaxed breathing from my diaphragm. This will trigger the mammalian diving reflex.

After that, I’ll perform a few 33-foot warmup dives. When I freedive at home, my first half-dozen dives are usually deeper than they are long — 24 seconds at 30 feet, etc. — so I know it’s going to take more than two of these to get warmed up. Still, I breathe, descend, wait, return to the surface and flash Fults the OK sign.

I look at my watch. One minute, 21 seconds. Whaaaaat? “That felt like 20 seconds,” I almost scream.

Fults just grins. He’s used to this reaction. “The mammalian reflex, bro. It’s no joke.”

Fults teaches me other ways not to “be an idiot and die.” For instance, he explains that it’s not our lack of oxygen that triggers our urge to breath but a buildup of carbon dioxide. That’s why hyperventilation, which decreases the natural level of CO2, is so dangerous. Sure, you’ll stay underwater longer, but it can delay the urge to breathe until your oxygen level is below the level you need for consciousness. Hello shallow-water blackout, or worse.

You may ask, as I did, “What’s worse than passing out in the ocean with a bunch of weights strapped to your waist?”

“A samba is worse,” says Fults, explaining that’s the nickname for loss of motor control. “Picture a seizure, in the ocean.”

During a blackout, he tells me, your brain does a pretty smart thing: It closes your windpipe so no water can enter. So, until you take your last desperate “terminal breath,” your body prevents water from entering your lungs. But during a samba, that doesn’t happen, and since you can’t control your limbs, you sink, breathe and drown. “It’s another reason that the first rule of freediving is always dive with a partner,” says Fults, for like the 186th time in three days.

In the next 30 minutes I easily hit 66 feet and want to go deeper. But in level one, Fults can’t let me. Safety strikes again.

Two freedivers train by diving down and up a line. Cory Fults, who has descended to 220 feet on a single breath, says training with a partner is essential.

EX-ARMY RANGERS, LARGE PREDATORS AND NEAR DEATH ON THE HIGH SEAS

Pulling myself up and down on a line is great and all, but it can get a bit repetitive, so Fults lands me a spot on Wild Hawaii Ocean Adventures’ Snorkeling & Marine Life Experience. WHOA is owned and operated by former Army Ranger and freediving world-record holder Brett LeMaster, who launched WHOA in 2011 with his former Navy SEAL attack boat, Ocean Warrior. I ask him how he got a military attack boat. “To get this boat you have to kill five terrorists, the last one with your bare hands,” he says. A moment later, he cracks a smile. “I bought it from a friend.”

Dubbed the Rolls-Royce of Navy SEAL attack boats, LeMaster’s 11-meter rigid-inflatable boat is built for speed and maneuverability; it can reach 50 miles per hour and turn or stop on a white cap.

LeMaster uses these features to hunt large open-ocean animals — everything from dolphins and pilot whales to false killer whales and large sharks — so guests can swim with them. His is the only tour on the island that does this, so I ask him how he gets away with it when others can’t.

“We ignore our insurance policy.”

About 30 minutes later, that phrase runs through my mind as we slide overboard about a mile offshore in thousands of feet of electric blue water and immediately see two very large oceanic whitetip sharks, a species known to be aggressive. I did my best to get my mammalian reflex to kick in and slow my heart — not easy when a 10-foot shark is deciding whether you are food. But really, it’s an experience like no other. LeMaster limits his tours to eight people, with two in the water at a time, so animals don’t spook and encounters are as natural, and as close, as possible.

In the next hour we swim with (awake) dolphins, short-finned pilot whales – “The males can get protective, so stay alert,” says Fults – and finally move into Kealakekua Bay for a reef snorkel.

On the boat ride in, everyone smiling and calm after their ocean encounter, LeMaster decides it’s a good time for some “speed work” to show just what an ex-Navy SEAL attack boat can do. LeMaster makes the “grippy grippy” sign (a clenched fist in the air) and puts the hammer down on the 940-hp jet engines below our feet. The SEAL boat leaps into action as if armed combatants have just invaded Kona. LeMaster steers directly — directly — at the cliffs in a move that I’m certain is expressly forbidden by his insurance policy. We close on the cliffs, each of our fun, excited, wow-this-thing-is-fast Disneyland grips rapidly turning to this-maniac-is-trying-to-kill-us death grips.

About the time we are all thinking, “Do I have time to abandon ship before we smash into that cliff face?” LeMaster throws the helm to port and we seemingly bank off the cliff at 50 mph, close enough to see crabs fleeing into cracks.

LeMaster looks back and smiles – or checks to see whether we’re still there. I’m not quite sure which. I do see why LeMaster does this on the way in, however – my heart rate won’t be under 100 until Christmas, and if I got in the ocean right now I’d have a breath hold of two seconds. LeMaster performs a few more of his “speed work” maneuvers while Fults tells us about the history of the cliff faces we nearly smash into (Honestly, Cory, no one is listening).

Soon we are back at the harbor and LeMaster has skirted another massive wrongful death suit, given seven visitors a lifetime of cocktail chatter and helped convince me that, relatively speaking, maybe freediving isn’t so dangerous after all.

Mission accomplished?

source: https://www.ocregister.com/2018/06/02/freediving-off-hawaiis-big-island/

By freedivinguae

Conservationists partner with the pier to rescue sea turtles at Navarre Beach

 

NAVARRE BEACH, Fla. (WKRG) – The latest rescue makes two dozen sea turtles saved near the Navarre Beach pier in the past month.

A local conservation group says it mostly sees turtles caught in fishing line. A fisherman at the pier accidentally hooked a sea turtle over the weekend.

“Over the past month, we have had to transport 24 turtles that were hooked and safely brought in to shore,” Cinnamon Holderman said.

The Navarre Beach Sea Turtle Conservation Center has partnered with the pier workers to make sure more turtles are rescued like this one.

“We came out and talked to the folks here at the pier and the local fishermen and staff at the pier decided to partner with us and go through the training on how to safely bring in a turtle after it’s accidentally been hooked,” Holderman said.

Holderman is a board member for the conservation center and she feeds and takes care of “Sweet Pea.” They don’t want what happened to her to happen to other sea turtles after she was found stranded on Ono Island in 2016.

“She had been entangled in fishing line,” Holderman said. “Her entire left flipper was wrapped so tight that it was later amputated.”

She now lives here permanently and Holderman says this can be prevented.

“A lot of people leave fishing line out on the beach, just picking that up and not letting it fall off the pier into the water.”

She adds that when fishing, avoid cutting the lines and letting the turtle go. She and others at the conservation center hope that other beaches nearby will try to start a partnership just like this one.

source:
http://www.wkrg.com/news/northwest-florida/conservationists-partner-with-the-pier-to-rescue-sea-turtles-at-navarre-beach/1206787930

By freedivinguae

Ten Eyewitness News Gets Up Close And Personal With The Largest Fish In The Sea, The Whale Shark

WHAT YOU NEED TO KNOW

  • Lee Steele dived with whale sharks on Ningaloo Reef, off the coast of WA.
  • These spotted creatures of the deep can grow to over 12 metres in length, and is the largest species of fish still roaming the waters.

The small, coastal town of Exmouth in WA’s north west is famous for its hot, sunny weather and clear, sparkling waters.

Except the one day of the year we fly there to film a story about swimming with the whale sharks. On that day it rains for the first time in twelve months. We are dealt a three metre swell, and bad visibility prevents the spotter plane from flying.

However, we are told success rate of seeing this gentle giant is 99 percent.

Without any aerial support, it was up to the skipper and the boat’s tour guides to try and spot the animals, with the added pressure of a television news crew needing a story to take home.

This was something myself and cameramen Karl Carosella had wanted to do for a very long time. A world famous swim with Ningaloo’s Whale Sharks was a first for both of us, and we knew it was going to be such an incredible experience.

However, the weather was against us that day, and just as I thought we may have been in the 1 percent category, the boat’s horn sounded, to signal the first whale shark of the day had been spotted.

This was when the atmosphere completely changed. Everyone on the boat was so excited it was finally happening. The urgency of it all added to the excitement, we were told to get into position as quickly as possible, and be ready to jump in as soon as we were given the green light.

 

One tour guide was already in the water, watching the shark’s movements.

We jumped in with our snorkel gear, and waited for the whale shark to approach.

You are waiting, watching, seeing nothing but water and fellow swimmers.

 

 

This magnificent creature is gliding just under the surface of the water, and it is huge. It was about seven metres long, but is still only a juvenile. After all the chaos and confusion when you first jump in, this moment is still and peaceful.

You are underwater, in awe of such a beautiful animal.

                                     A researcher gets up close to a whale shark. Photo: Wayne Osborn.

He seems completely indifferent to the group of people trying to keep up, or stay within a safe distance. We were told to stay three metres to the side and four metres back from the tail, to avoid spooking the shark.

Then just as suddenly as he appeared, the whale shark is gone. Diving back into the deep water below, you watch the white spots of the shark go deeper and deeper, until you eventually can’t see them anymore.

The entire group is buzzing after such a breathtaking encounter. And within minutes of returning to the boat, the siren sounded again! Another whale shark has been spotted. We jumped back in the water. This time, feeling a lot more confident.

We ended up swimming alongside three whale sharks at Ningaloo Reef within about half an hour. Not bad for a day with pretty average weather!

The strange thing is, you’re not allowed to get too close, but it often felt like they were coming straight towards you. I was swimming as fast as I could to keep a three metre distance.

 

                          You just have to remind yourself, they only eat plankton! Photo: Wayne Osborn

I was also frantically swimming to keep up with the whale sharks. Even though they are just gliding through the water, they are deceptively fast.

It’s not just the whale sharks that draw people to Ningaloo Reef. We also snorkelled over coral, which is home to so many different fish, manta rays and reef sharks. Then from the boat we spotted humpback whales, dugongs and large tiger sharks.

I have probably always taken the giant tourism attraction in Western Australia’s north west for granted. I had been told by so many people that this was one of the best things you would ever do. It really is, there is nothing like it. Nothing compares to swimming just metres away from the world’s biggest fish. It’s hard to imagine that you would feel completely safe alongside a seven or eight metre shark.

But as the shark’s giant mouth is heading towards you, you just have to remind yourself, they only eat plankton!

By freedivinguae

A large population of whale sharks has been discovered in the waters off Madagascar

Thanks to its historic isolation, Madagascar has long been famed for its unique wildlife, ranging from lemurs and rare chameleons to exotic birds and the carnivorous, cat-like fossa. But now a new study published in the journal Endangered Species Research has revealed that the island nation is also a hotspot for whale sharks (the world’s largest fish).

Portrait of a whale shark
The whale shark population is thriving off the coast of Madagascar © Andrey Nekrasov / Barcroft Media via Getty Images)

A single season survey, part of the Madagascar Whale Shark Project (a collaboration of researchers from Mada Megafauna, Marine Megafauna Foundation and Florida International University), identified 85 juvenile whale sharks swimming in an area around the island of Nosy Be in the country’s far northwest. These waters had previously been noted for sea turtles, manta rays and migrating humpback whales, but the sheer number of whale sharks that arrived to feed during the September to December period was a huge surprise. Also of importance was the fact that these individuals represented an undiscovered population – they were not simply displaced from other known feeding areas in the Indian Ocean – Mozambique, Tanzania, Djibouti, Seychelles and the Maldives – that have experienced a decrease in whale shark populations. This information came to light after the marine biologists uploaded images of the new sharks’ unique spotted patterns to the Wildbook for Whale Sharks global database and discovered no overlap.

Several of the whale sharks that were observed were also tagged to track their movements, and the team discovered a second Madagascan hotspot near Pointe d’Analalava, some 180 km to the south of Nosy Be. Other data revealed that five of the sharks swam as far as the Comoros Islands, while another two migrated some 2150km to the southern tip of Madagascar. One of the latter two made the return journey, thus covering about 4300km, an impressive figure given these slow swimmers cover only 20km or so each day.

Divers photograph a whale shark
Divers with whale shark. Photo by: Michael Aw/Lonely Planet

It’s hoped the whale sharks can be a major asset for Madagascar, particularly if access is well managed by the country’s burgeoning ecotourism industry. In recent decades overfishing (including accidental catches) and boat strikes have put whale sharks on the RIUCN RedList as a globally endangered species.

By freedivinguae

The timer called out the seconds: “Plus 7, plus 8, plus 9, plus 10. … Plus 20.”

Shelby Eisenberg had just 10 seconds to let go of the gray tube bobbing off the coast of Grand Cayman and plunge into the depths of the Caribbean. Just 10 seconds to begin her attempt to go deeper than any American woman had ever dove while using only the oxygen in her lungs.

Her window was closing, creating more pressure on her than she would feel at her target depth of 85 meters, under 22,400 gallons of water. Yet to go that far, it was imperative she remain calm.

“I knew it was my last chance, my last day. I had to take a couple of relaxed breaths,” Eisenberg, a Santa Cruz native, said. “I just had to tell myself — because I can stay there breathing all day long — I had to tell myself, ‘OK, you’re ready. One more breath won’t make you more ready.’”

Eisenberg put her hands up, then she dove down, a graceful mermaid leveraging her monofin through the clear, cobalt water. When she reached her target depth, she snatched a tag off a weight tethered to a rope, then sped her way back to the surface. As she emerged into the glorious, oxygen-rich air, the smile on her face said it all.

She had just set the national record for a controlled weight freedive, ending a six-year-plus monopoly on the mark held by Ashley Futral Chapman of North Carolina. Chapman held the record at various depths before setting her personal best, 84 meters, in September 2016.

After breaching the surface, Eisenberg still had to wait another 30 seconds to go through a brief series of tests and have the judges confirm her record, but she wasn’t worried.

“I knew I had it because I felt completely in control,” Eisenberg, 27, said. “I had a coach at the surface smiling back at me and judges smiling back at me, so I knew I was OK. It was just, ‘OK, don’t get too excited.’”

She stayed calm. The same couldn’t be said for the judges and safety personnel who witnessed the feat Sunday at the Deja Blue International Diving Festival. They circled around her and broke into whoops and splashes once the judges flashed the white cards that signaled the dive was legitimate.

Francesca Koe of San Francisco, who is well-acquainted with Eisenberg because of their Bay Area connection, was among the three judges in the water that day.

“Everyone has aspirations and dreams, we just didn’t realize she was training for weeks on end since January trying to do this,” Koe said. “We were all on pins and needles. She looked super strong and super clean.”

The record-setting dive came as a surprise to many. Eisenberg, who goes by the nickname “Shell,” has only been freediving for six years and competing for four.

A former Westside resident — her parents Sandy and Geoff still live there — she attended the University of Hawaii after graduating from Kirby School in 2009. There she began experimenting with freediving as a way to get a better look at reef and sealife. In 2012, she took her first freediving course (similar to SCUBA diving, participants must be certified) and she entered her first competition in 2014. Last year Eisenberg became a professional freediving instructor for Performance Freediving International, a company that trains and certifies people in the sport, including the cast of the upcoming “Avatar” sequel.

“It’s something that’s always been really difficult for me to describe and put words to,” Eisenberg said of the freediving experience. “You’re deep in the ocean, deep in nature. Even though there are a lot of people on the dive, there’s a feeling that it’s just you in the water, and it seems to get clearer as I go deeper.

“There’s not a lot of emotion down there, just peace.”

Though she had previously set two records for pool diving, which is measured by length, her personal-best ocean depth before arriving in the Grand Cayman last week was 74 meters, which many believed did not put her in striking distance of Chapman’s mark.

Over the course of the weeklong competition, she drew closer and closer. Then, in her last dive before setting the record, she missed an attempt. Knowing she had just one more dive before returning to her home in Hawaii, however, Eisenberg decided to go for the gusto.

“Shel’s 85-meter dive was incredible on so many levels,” John Hullverson, president of USA Freediving, said in a statement. “Not only was she able to withstand the nine atmospheres of pressure her body was under at that depth, but for her to endure the hypoxia, increased lactic acid buildup in her muscles and urge to breathe throughout the nearly three-minute dive — and then complete her surface protocol so cleanly — is a testament to what kind of shape she’s in.

“I don’t think we’ve seen the last national record for Shel.”

Eisenberg doesn’t think so either. She’d like to tack on another meter or two this year alone. But she has no intention of plateauing there.

While 104 meters is the women’s constant-weight world record, only a couple of U.S. men have reached 100 meters, and no U.S. women. Eisenberg would like to be the first, but she said she wouldn’t mind if someone else beat her to it.

“One hundred meters is the life goal, but I’m not in a rush,” she said. “It’s easy to get excited and that’s how people get hurt. Of course, it’s on my mind. I’ve got to get to 90 meters before I get to 100, and that’s a little more on my mind. … Then we’ll see where we go from there.”

Her motto now is the same as it was when time was running out on her record attempt: Take a breath, then take the plunge.

Contact Julie Jag at 831-706-3257.

For the Record: Freediving marks

Constant Weight

World: 129 meters, Alexey Molchanov, Russia, 2017

World women’s: 104 meters, Alessia Zecchini, Italy, 2017

U.S. men’s: 101 meters, Kurt Chambers, Hawaii, 2016

U.S. women’s: 85 meters, Shelby Eisenberg, Hawaii, 2018

 

SOURCE: https://www.mercurynews.com/2018/05/18/85-meters-freediving-national-record-set-by-santa-cruz-native/

By freedivinguae

Hawaii diving instructor breaks U.S. freediving record

Shelby Eisenberg begins her record-setting descent in waters off Grand Cayman. (Courtesy: Joakim Hjelm )
Shelby Eisenberg begins her record-setting descent in waters off Grand Cayman. (Courtesy: Joakim Hjelm )
KONA, HAWAII (HawaiiNewsNow) –A Kona resident set the U.S. freediving record on Saturday in Grand Cayman, according to USA Freediving, the sport’s governing body.

Shelby “Shell” Eisenberg, a freediving instructor who lives and works in Kona, broke the Women’s National Record in the Constant Weight division, meaning the diver must ascend with the same weight that he or she descends with.

Eisenberg dove to a distance of 85 meters, or 279 feet, on a single breath, breaking the national record by three feet. The entire dive took 2 minutes and 51 seconds.

“I was very nervous going into the dive and on the way up, I was able to stay focused and stay focused to the end,” said Eisenberg. “So once I got to the surface and saw my coach at the surface, it was at that point I knew I had it, and I was just overwhelmed with happiness, really.”

USA Freediving says it’s the third national record for Eisenberg, who has also set a pair of pool-based freediving records.

 

source: http://www.hawaiinewsnow.com/story/38199284/hawaii-diving-instructor-breaks-us-freediving-record

By freedivinguae

‘Whale sharks found off Gujarat stay in Arabian Sea’

Ahmedabad: The satellite tagging of two whale sharks off the Gujarat coast by scientists of the Wildlife Trust of India (WTI) and the Gujarat forest department, some time ago, has allowed researchers a 350 -day and a 150-day peek into the lives of the world’s largest fish.

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The whale shark is among the least studied fish species. These satellite tags have busted the myth that whale sharks generally live near Australian shores and come to the Indian Ocean to breed. The two tagged whale sharks were found to be moving about in the Arabian Sea near Oman and Somalia, owing to the better food availability and conducive breeding conditions there.

Interestingly, these initial findings of WTI officials corroborate the findings of the International Union for Conservation of Nature (IUCN).

A 2016 IUCN report had stated that whale sharks found in the Atlantic and the Indian and Pacific oceans are not cousins but are ‘functionally separate’. The report acknowledged that whale sharks found along the Indian coast, including the coast of Gujarat, have no connection with those found in the Atlantic.

The WTI, with permission from the forest department, is now planning to tag another three or four whale sharks to get more data.

The WTI will soon move a proposal with the forest department, said sources.

Sajan John, the WTI researcher who analysed the satellite data, said, “Data from these tags, which remained operational for 350 days and 150 days, revealed that these animals remained mainly in the Arabian Sea and did not move toward the east coast of India. Their movements were confined to the Arabian Sea and towards Oman and the Somali coast.” He added that a detailed study is being prepared and will be published soon.

Forest department officials said whale sharks move between the Saurashtra coast and the Arabian peninsula due to relatively better availability of food. Whale sharks consume plankton — which includes copepods, krill and fish eggs — which is relatively abundant in the Arabian Sea.

Officials said a comparative genetic study of whale sharks found off the Gujarat coast and off Australian coasts revealed that these populations are not related to each other in a manner to be considered as different parts of the same population.

The latest two tags

Forest department officials said the tag which lasted 350 days was on a female whale shark tagged off the Saurashtra coast in December 2016. Data from it showed that the animal had travelled all the way to the Somalia coast and returned to the India coast. The signal for the tag was then lost, with the latest location putting the animal just off the southernmost part of India.

The tag that lasted 150 days, fitted last November, went all the way to the Oman coast before its signal was lost.

 Officials said an earlier WTI and forest department study, which had tagged six whale sharks in 2014, showed the animals travelling from off the Porbandar coast to near the Lakshadweep islands.

Life of the tags

The satellite tag signals get cut off when their battery runs out. Officials said the normal life of a tag is two years. These tags are imported and the research agency has to refrigerate them in storage. They also have to be switched on and off every 15 days in storage and this reduces their life. The effective life when the tag is applied is thus not certain.

By freedivinguae

Coral World Participates in Rescue of Injured Green Sea Turtle

On Friday May 4, Patrick Cena, a local resident, spotted an injured green sea turtle washing ashore in Christmas Cove.  According to Erica Palmer, a Coral World veterinary technician, who is also a sea turtle assistance and rescue responder, “Patrick contacted Coral World for assistance.  He then transported Matt Tartaglio, Coral World assistant curator, and me on his boat to Christmas Cove to see what we could do for the turtle.”  Apparently, the same injured turtle had been spotted on May 1 swimming in shallow waters off Little St. James, but the turtle spooked when the individual who tried to come to the turtle’s aid entered the water.  Cena made the next sighting three days later.

Palmer said, “When we found the turtle it was extremely weak, lethargic and had no use of its rear flippers. We took it back to Coral World where we administered emergency medications to combat anemia and infection because of a large fracture of its carapace and associated blood loss.  We think the turtle had been injured close to a week earlier because there was dying bone and soft tissues involved.”  The staff monitored the turtle 24 hours a day for the first 48 hours.

“We provided supportive care and medications during the weekend while we lined up a CT scan with Dr. Jeffrey Guller at St. Thomas Radiology for Monday to assess the extent of the damage.  A veterinary radiologist in the states informed us that the scan revealed a severed spinal cord and massive inflammation, as well as several missing vertebrae,” said Palmer.

The most likely cause of the injuries was blunt-force trauma by a boat strike. “We hate to lose a turtle, but the long-term prognosis for survival was so poor in this case because of the severity of the injuries, we made the difficult decision, in consultation with our consulting veterinarian, to humanely euthanize the turtle,” she said.

According to Palmer, who has seen many injured turtles during her work as a STAR responder, blunt-force trauma from boat impact or propellers are a significant threat to sea turtles and other marine animals.  All sea turtles are designated as either threatened or endangered under the U.S. Endangered Species Act of 1973.  Violations can result in up to one year in prison, up to a $100,000 fine, and the confiscation of any equipment used during the criminal act.

 

Rescuers lifting injured turtle

STAR is a collaboration of NGO’s, territorial and federal agencies, veterinarians and community volunteers. These groups and individuals have joined together to help injured sea turtles to provide better protection through the collection and dissemination information on stranded turtles.  Palmer emphasized, “STAR relies on many community volunteers, local veterinarians, and other donated resources like those offered by Coral World, but the most important participant in STAR is you.  Please report any entrapped, disoriented, sick, injured or dead sea turtle by calling the hotline at 690-0474.  You can find out more about STAR at  STAR-Sea Turtle Assistance and Rescue.”

Coral World is the only approved Sea Turtle Rehabilitation Facility in the Virgin Islands. It has been conducting and funding turtle rehabilitation since it reopened in 1997 as part of its mission to educate, entertain and inspire appreciation for the Caribbean marine environment.

 

 

source:  https://stthomassource.com/content/2018/05/13/coral-world-participates-in-rescue-of-injured-green-sea-turtle/

By freedivinguae

Home to nest: Sea turtles finally coming ashore

HARLINGEN — They came, they dug and they laid.

The first big day of sea turtle nesting season on Texas beaches Monday resulted in 41 total nests confirmed from San Jose Island near Rockport south to Boca Chica Beach.

On South Padre Island, Sea Turtle Inc. reported 13 turtle nests confirmed, along with an additional two nests on Boca Chica.

At Padre Island National Seashore, 22 turtle nests were discovered on Monday inside the National Park Service boundaries. Two additional nests were found on San Jose Island, one on North Padre Island to the north of the national seashore and one found on Mustang Island.

All the nesting females are critically endangered Kemp’s ridley sea turtles.

A juvenile loggerhead turtle was rescued on North Padre Island and taken to the Animal Rehabilitation Keep (ARK) in Port Aransas.

Donna Shaver, chief of the Division of Sea Turtle Science and Recovery at Padre Island National Seashore, said an additional two nests were found yesterday taking the early toll this season to 52 Kemp’s ridleys for the entire Texas coast.

“I still am reserving judgment, although this was the largest day that we’ve had in the month of April,” she said yesterday. “It still was late in the month so our year-to-date total lags much behind last year.”

It is possible, she said, the high number of cold fronts which have occurred in South Texas this spring have pushed back the typical dates for turtle nesting.

“The nesting season in Texas has been documented for Kemp’s ridleys through mid-July, the 15th of July, but the majority of nests are found through the third week of June. So we have about seven weeks left in the peak part of the nesting season,” she added.

“If it’s going to be a good year, it’s going to be quite busy for those seven weeks,” Shaver said. “They’re going to be very important in terms of how it all turns out.”

A total of 27,000 Kemp’s ridley nests were recorded last year along the western coast of the Gulf of Mexico. Practically all of those nests were found on Playa de Rancho Nuevo in Tamaulipas, Mexico.

In Texas, 353 Kemp’s ridley nests were recorded last year, with the national seashore marking 219 nests, South Padre Island recording 70 and Boca Chica coming in with 23.

Sea turtle females don’t necessarily nest every year, which is a complicating factor in attempting to assess a species’ total number. Shaver has said previously the latest research shows Kemp’s ridley females are nesting every 3.5 years on average.

 

SOURCE: http://www.brownsvilleherald.com/news/local/home-to-nest-sea-turtles-finally-coming-ashore/article_db0a5dcb-c892-5147-8783-faec5c6499e6.html

By freedivinguae

Study warns of dolphin tourism risks

New research led by University of Otago scientists indicates there is growing evidence that whale and dolphin-watching activities can adversely affect the marine mammals.

The study “Behavioural responses of spinner dolphins to human interactions” was  published recently by the journal Royal Society Open Science.

The research focused on populations of spinner dolphins off the coast of Egypt, where a variety of regulations over tourist interactions with dolphins applied in different areas.

Prof Liz Slooten, of the Otago zoology department, said Egypt could learn from New Zealand over limiting the number of boats and visits, as well as using licences, and codes of conduct, to protect marine mammals from adverse effects.

New Zealand could also learn from Egypt’s “area-based approach, with zones for boats, zones for swimmers and zones with only dolphins”, she said.

The Otago researchers said it was time to act on the scientific evidence on the effects of dolphin-watching on wild animals and any unregulated increase in dolphin tourism should be discouraged.

Dolphin groups should also be fully protected while calving, feeding and resting, and well before “populations are compromised”. Researchers from Italy, Hong Kong and the Falkland Islands also contributed to the study, together with first author Dr Maddalena Fumagalli and Prof Slooten, of the Otago department, and Associate Prof John Harraway, of the Otago mathematics and statistics department.

Dr Fumagalli conducted the research as part of her Otago PhD studies.  She said the Egyptian study focused on three areas, one with no tourism, and the others with controlled, and uncontrolled tourist activities, respectively.

Spinner dolphins rested and slept only in daylight, and in the shallow, protected waters of reef lagoons. Human interactions in these lagoons “caused disruptions to the dolphins’ resting patterns”, Dr Fumagalli said.

Where there were restrictions on how close boats and swimmers were allowed to approach the dolphins’ resting area, the dolphin rest needs appeared to be met.

But at the uncontrolled access site dolphins could find it “impossible to rest”, causing “great concern”.

Repeated sleep and rest loss could eventually result in population decline or displacement, she said.

 

 

SOURCE: https://www.odt.co.nz/news/dunedin/campus/university-of-otago/study-warns-dolphin-tourism-risks