Sabtu, 29 Agustus 2009

Secret film will expose Japan's brutality

FILM MAKERS OUTSMART DOLPHIN KILLERS: SECRET FILM WILL EXPOSE JAPAN'S BRUTALITY
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by BOYD HARNELL



Japan's dolphin slaughters
Japanese fishermen drag still living dolphins over the pavement by truck to slaughterhouse facilities where they brutally kill the animals in cruel rituals of sadistic violence celebrated by Japan's racist, anti-western ultranationalist extremists.





TAIJI, Japan (3 Apr 2008) — For the first time ever, graphic feature-length footage of the annual slaughter of some 2,500 dolphins in Taiji, Wakayama Prefecture, has been captured during a unique yearlong covert operation.

The secret filming by members of the U.S. conservation group Oceanic Preservation Society (OPS) — equipped with state-of-the-art technology and financed to the tune of $5 million by Netscape founder Jim Clark — is being turned into a major documentary feature film destined for worldwide release this summer (although distribution in Japan is at present not certain).

The story of how this film of the barbaric killing and subsequent butchering of dolphins was made — together with the resulting sale of their meat that massively exceeds Japanese and international limits for mercury content — is told here, exclusively, for the first time anywhere in print.

The footage of the annual seven-month dolphin "drive fisheries" (as they are known in Japan), and of the brutal practices involved in them — as well as the complicity in the killings by various dolphin trainers and officials from Taiji Whale Museum — is sure to shock the world. But whether Japanese people themselves will be able to see the film and arrive at their own conclusions is still by no means certain.

The annual dolphin slaughter at Taiji, a town with a population of some 3,500 in the beautiful Yoshino Kumano Kokuritsu Koen national park, follows a regular pattern.

First, hunter boats from the Taiji Isana Union (numbering at most 13 skiffs, with two crewmen each) head out to sea and surround pods of dolphins or pilot whales (which are actually large dolphins). Then they drive them into a "capture cove" by banging on long metal bell-ended poles placed in the water to disrupt the dolphins' sonar, causing them to become completely disorientated and panic.

After these animals have spent a night supposedly relaxing in the netted-off capture cove (in an attempt by the whalers to make their meat more tender), they are driven to the neighboring "killing cove." There, behind huge blue tarps strung across the cove to keep prying eyes away — in much the same way that Japanese police cordon off crime scenes — the dolphins meet their gruesome predawn end.

It is a gory spectacle that Taiji has long striven to keep anyone from seeing — and one that is crucially fueled by the lucrative, worldwide dolphin captivity and display industry. Aquarium operators, some of whom have claimed to be saving dolphins' lives by selecting a few as performers, pay up to $150,000 per animal.

The brutal selection process, though — as shown in the OPS footage — causes many of these highly intelligent marine mammals to die of shock or drown.

Meanwhile, cruelty apart, the government-sanctioned slaughter is widely condemned by Japanese scientists, activists and a few Taiji officials, who all cite the serious health issues related to consumption of the dolphins' mercury-tainted meat.

One of the officials OPS filmed was Taiji City Councilman Junichiro Yamashita, who organized certified tests on local dolphin meat bought from retail outlets in the town. The shocking test results revealed mercury and methylmercury levels that were 30 and 16 times, respectively, above advisory levels set by the Health, Labor and Welfare Ministry. As a result, Yamashita hastily distributed newsletters to Taiji residents warning them to avoid consuming the meat — which he called "toxic waste."

Although a massive blackout of this long-standing butchery of small cetaceans is aided by an apparent self-imposed boycott of the subject by Japan's vernacular and other English-language media, this newspaper has published a 2 1/2-year-long series of exposes that have won it two international press awards from the Humane Society of the United States.

Now, though, the focus is on the meticulously planned $2.5-million covert operation — the cost of which is estimated to double by the time of the film's projected release in June.

From their base in Boulder, Colorado, the OPS group made six trips to Wakayama Prefecture, where they were constantly followed by local police and stalked and harassed by Taiji "whalers." Despite this, their mission was successful. Their high-tech film gear was covertly inserted in the "killing cove" and extracted 16 times thanks to the efforts of the film's assistant director, Charles Hambleton, and three members of the OPS team. Their hidden, high-definition (HD) cameras successfully recorded the horror that unfolded behind Taiji's blue tarps. And what they saw was beyond their belief.

Captured dolphins were filmed writhing in pain as Taiji whalers speared them repeatedly or cracked their spines with spiked weapons. Stricken dolphins are also shown thrashing about wildly, blood pouring from their wounds until they finally succumbed. Meanwhile, a number of dolphin trainers and officials from the Taiji Whale Museum are shown cooperating in the slaughter — some even laughing — as the killing cove's bloodied, ruby-red water swept round into the adjacent capture cove.

But perhaps the most iconic scene is one in which a baby dolphin leaps to its death on the rocks after its mother is killed. This really was a surreal and incredibly sad sight to see.

OPS team leader Louie Psihoyos, a world-renowned photographer formerly with National Geographic Magazine, and members of his group, conducted the extraordinary covert operation with the daring elan and minute precision of a military-style, special-forces mission.

With funding from billionaire conservationist Clark, the team was able to use the most sophisticated equipment money could buy. Among their weapons of choice were a battery of HD cameras. Some of those cameras were encased in fake rocks sculpted out of high-density foam by movie-model makers with Kerner Optical (formerly George "Star Wars" Lucas' Industrial Light and Magic Shop). These disguised cameras were strat- egically positioned inside the killing cove.

Also included in the formidable lineup of high-tech gear for this covert operation were standard-size HD cameras, $50,000 military-grade HD forward-looking infrared (FLIR) P-645 thermal cameras (to detect anyone the whalers had on lookout); hydrophones and HD underwater cameras (to record the dolphins' underwater throes); unmanned gyro-stabilized helicopters; a number of "shotgun" microphones disguised as tree branches; walkie-talkies; and a host of ancillary equipment.

The mission objective was to produce a well-balanced, full-length documentary feature for general worldwide release encompassing all facets of the Taiji dolphin cull and its health risks.

"We succeeded," Psihoyos said, "but we also came back with an epic horror film resembling a Steven King novel more than a documentary."

Psihoyos emphasized that the film is neither anti-Japanese nor a "Japan-bashing" production.

In fact, the whole OPS Taiji odyssey (with backing from Clark) began in the winter of 2006. Then, Psihoyos says, "My assistant director, Charles Hambleton, and I had a seven-hour meeting at the mayor's office with Taiji town officials about making a movie of their town.

"An official, who represented Mayor Kazutaka Sangen, said they were concerned about Westerners showing blood in the cove — that it gave the town an evil look."

Psihoyos says he told the officials he would not show blood in his film — if they allowed him to position two cameras at the entrance to the cove and to interview the whalers. After mulling it over, though, both officials and whalers cut off contact with Psihoyos and denied him permission to film near the cove. As well, they demanded that he should restrict footage showing blood — apparently fearful that barbarous images may lead to their drive hunts being banned.

In this volatile atmosphere, local police warned the whalers and their supporters off any repeat of violence or threats of violence such as had happened before. In fact, Nigel Barker, a former Australian resident in Taiji, says he was threatened with bodily harm for providing The Japan Times with details of the whalers' brutal methods. In another incident, Psihoyos said he, too, was threatened by whalers, who said, "We will kill you."

Amazingly, though, after their talks broke down and the OPS people were leaving their final meeting with Taiji town officials, they were given a detailed map of Taiji, red-lining areas where filming was restricted. This map became a precious tool for planning the group's covert ops over the next year.

Now the gloves were off. No agreement had been made with the officials and Psihoyos immediately planned a thorough reconnaissance of the Taiji area. Precise vantage points were selected to position their cameras. Several camouflaged camera blinds were set up on the headland adjacent to the Whale Museum that overlooks the killing cove. But their major challenge was figuring out how to insert and extract their "rock cameras," underwater cameras, hydrophones and hidden microphones without being detected.

Psihoyos contacted Ric O'Barry, who captured and trained dolphins for the 1960s TV series "Flipper," asking for his help in detailing the whalers' routine during drive hunts.

O'Barry, head of the international Save Japan Dolphins coalition, had monitored the drives in Taiji for more than five years, and he agreed to be the point man for OPS. O'Barry was already hated by the whalers for his activities, including bringing the media to Taiji to film the brutal drives. In fact, he tells how whalers greet him with throat-cutting gestures when they see him there.

Following O'Barry's advice, the OPS group implemented their high-risk strategy for filming the covert mission. As the two headlands overlooking the killing cove were constantly monitored by whalers, members faced the loss of expensive gear and possible arrest. That was despite Japanese attorneys telling them that the legality of blocking access to a national park was questionable. They said, though, that police "made up their own rules" in enforcing the blockade.





The OPS group was headquartered in hotel rooms in the area, where their missions were planned and piles of pricey equipment occupied most of the space. Two vans were rented to haul their weighty gear to their target locations. Another small, unobtrusive rental car driven by OPS member Joe Chisholm was used for scouting — mostly for monitoring the Taiji harbor area to check if drive boats were out. Chisholm also kept an eye on the roads to detect whether police were following the group. Altogether, the incredible challenges of making this film elevated it to a major undertaking on a scale never before attempted.

Throughout this buildup period, drive fisheries were being conducted during daylight. If the whalers were successful, captured dolphins would be trapped in the holding cove sealed off with nets. Before daybreak the next day, men in motorboats would herd the panicked animals into the killing cove of no return.

The horror of the dolphins' final moments there were recorded not only by the "rock cameras" above the waterline, but also from below by using underwater microphones and an underwater "blood-cam" HD camera devised by OPS high-tech guru Simon Hutchins, which yielded graphic footage of the sea slowly turning red as the killings continued.

To make this possible, OPS called on Mandy-Rae Cruickshank, a seven-time world free-diving champion, and her famed coach and husband, Kirk Krack, to plant the devices. (Cruikshank recently broke her own world record by free-diving down to 88 meters and back in 2 min. 48 sec.) Both eagerly accepted the risky challenge.

"Good to go Mandy," crackled through the two-way. It was 3 a.m. The OPS support group on land had just completed a thermal-imaging sweep of the capture and killing coves. No security was detected. As the OPS van dropped the two off above the holding cove's small beach, and sped away, the free-diving pair, clad in wet suits, entered the water. The moon was full, helping them to see obstacles.

"Tensions were high . . . we had to get around a barbed-wire fence and hike down over some boulders to get into the water," Mandy said. "Then we swam around to the killing cove. It was about 40 feet (12 meters) deep. We had an underwater camera and hydrophone, and we used a flashlight to get a reference point so we knew where to retrieve them from after we made a reconnaissance, but we had to turn it on and off quickly to escape detection. Then Kirk and I put down the devices fairly easily."

On their return to the beach in the holding cove, Cruickshank said, "We saw a car going into the parking lot, so we hid in bushes until they left and then we waited for the van to pick us up."

Before that mission and again afterward, she said, "We were constantly monitored by police."

A few days later, Cruikshank said that from that same beach in the capture cove they saw a pod of 40 herded round to the killing cove, where the slaughter began. "They had separated the babies, some only as big as my arm, and then the emerald water in front of us began to turn red and you could hear the dolphins screaming. One stabbed dolphin tried to escape, and it made it over two nets from the killing cove and was heading toward the beach in the capture cove with blood streaming from it. We saw the last two breaths it took — it was impossible not to cry.

"The babies were led out to sea and were either killed or set free to die of starvation," she said.

Meanwhile, Psihoyos' team was embedded in their camera blinds on overlooking hillsides, sometimes for as long as 17 hours a day. Dressed in full camouflage gear and wearing face paint, they looked like military sniper teams. Black masking tape covered reflective surfaces on their cameras to avoid detection. For over 3 1/2 weeks, the OPS team survived on a daily ration of 3 hours' sleep. When filming from the camera blinds, they subsisted on energy bars and water. Whaler security men, always wary of outsiders monitoring their hunts, constantly scanned the high terrain, the bushes and undergrowth surrounding the two coves, their flashlights searching for intruders.

Psihoyos recounted his attempt in setting up the initial camera blind in a spot overlooking the killing cove.

"It was a moonless night and I had a full-size def (HD) camera in tow with a large tripod. I scaled a cliff and descended on a rope and perched on a shelf as big as an average office desk — but at a slope of about 30 degrees.

"I braced my feet against a small tree and didn't move them for the next 15 1/2 hours," he said, adding, "the lagoon was filled with pilot whales — they made a protective circle around their young. I shot frantic clips from my unstable perch as I saw whales killed and dragged away."

Reacting to these brutal scenes, Psihoyos recalled thinking, "If there's a god, don't let their lives be wasted in vain."

Originally, OPS's hidden rock cameras focused on the killing cove from surrounding headlands could only film for three hours, but a high-tech piece of kit they acquired "turbocharged" the batteries to allow them to film for 11 hours continuously, ensuring they would capture all facets of the cull.

The hidden microphones revealed startling comments from whalers in the killing cove, including one during the cleanup after a killing session, when a dead calf was on the beach in the killing cove. Countering the whalers' contention they never harmed a mother or its calf, one was heard saying: "Hey, that guy over there saw the dead calf, didn't he? Is it a problem?" His friend responded, "He came from the [whalers'] union — it's not a problem."

Indeed, contrary to their statements, the Taiji whalers seem unconcerned about killing female dolphins and their calves — as is graphically depicted in one of the film's sequences.

However, along with the film's horrific images, Psihoyos also interviews on camera Japanese scientists and others involved in the mercury health issues surrounding dolphin meat.

Dr. Shigeo Ekino, a prominent researcher from Kumamoto University's Graduate School of Medical Sciences in Kyushu, compared the high mercury levels found in contaminated fish in Minamata, Japan, in the 1950s during the world's worst mercury-pollution disaster, to levels of mercury currently found in dolphin meat.

Ekino, who was filmed holding a tested sample of Taiji dolphin meat, said: "This dolphin meat is 98.9 ppm (parts per million of total mercury) — which is higher than the level (of the fish and shellfish) in Minamata Bay. It's a clear danger!"

His sample was 247.25 times the Japanese health ministry's advisory level of 0.4 ppm for total mercury.

Tetsuya Endo, a professor at Hokkaido's Health Science University, also conducted mercury tests on dolphin meat, and his results were published in 2005. In a filmed OPS interview, he said: "I found 100 ppm of total mercury in . . . bottlenose dolphin and 2,000 ppm of total mercury in the liver of an unknown (dolphin) species. All of it was toxic." In fact, the higher figure was 5,000 times the health ministry's advisory level for mercury.

In another OPS interview, Psihoyos asked Hideki Moronuki, deputy director of the Far Seas Fisheries Division of the central government's Fisheries Agency, "How are the dolphins killed now? . . . and are the dolphins being dragged around by their tails during the selection process for captive specimens?"

Moronuki is filmed replying, "Fishermen are using specifically made knife (sic), and put it through the spine . . . most of the animals are killed instantly." As for allegations of them being dragged by their tails, he says, "That's not happening anymore."

When Psihoyos showed Moronuki a film clip of the inhumane, random spearing of dolphins while others were dragged by their tails — all filmed recently — he froze and told Psihoyos: "I have to instruct them again. They are using inappropriate method to treat dolphin."

At Psihoyos' request, Moronuki gave him a hair sample to be tested for mercury. The result: a readout of 5.874 ppm of total mercury, which is 14.68 times the health ministry's advisory level.

Moronuki's response was peculiar: "I was very happier to know that I have eaten so much fish which make me much healthier than meat-eating peoples."

Another dramatic highlight of the footage shows a surfer invasion in Taiji last October led by legendary Australian pro surfer Dave Rastovich, along with a few TV celebrities and some surfer buddies. They paddled into the cove where dolphins were being slaughtered and formed a prayer circle. Shocked by the atrocity, they finally retreated when whalers in skiffs came and prodded them with poles and sharp-hooked gaffs.

Producers of the OPS documentary are aiming for a worldwide release in June, including a special Japanese version creatively marketed and circulated to ensure maximum viewing even if major distributors turn it down. The film's narrator will be an actor selected from Hollywood's "A list," they said.

Referring to his hopes the film will benefit the dolphins, Psihoyos said: "Dolphins are the only wild animals known to rescue humans. With this film, we'd like to come to their rescue and, in the process, save ourselves."

Pointedly, just months before the surfers went into the killing cove at Taiji, their leader Dave Rastovich had survived a shark attack in Australia when a dolphin swam between him and the shark and allowed him to escape.
SOURCE - The Japan Times
(http://www.cdnn.info/news/eco/e080403a.html)

Cetacean at Risk



Cetacean face an uncertain future. Environmental contamination of oceans, seas, and rivers is a concern. Pesticides, heavy metals, plastics, and other industrial and agricultural pollutants which do not disintegrate rapidly in the environment reduce dolphin and Whales populations, and cause tissue buildup of high levels of contaminants. Injuries or deaths due to collisions with boats, especially their propellers, are also common.

Various fishing methods, most notably purse seine fishing for tuna and the use of drift and gill nets, unintentionally kill many dolphins. Accidental by-catch in gill nets and incidental captures in antipredator nets that protect marine fish farms are common and pose a risk for mainly local dolphin populations and called byCatch.

Cetacean bycatch is the incidental capture of non-target cetacean species by fisheries[1]. Species which are seriously affected by this include dolphins, porpoises, and whales. Bycatch can be caused by entanglement in fishing nets and lines, or direct capture by hooks or in trawl nets.

Cetacean bycatch is increasing in intensity and frequency. This is a trend that is likely to continue because of increasing human population growth and demand for marine food sources, as well as industrialization of fisheries which are expanding into new areas. These fisheries come into direct and indirect contact with cetaceans. An example of direct contact is the physical contact of cetaceans with fishing nets. Indirect contact is through marine trophic pathways where fisheries are severely reducing fish stocks that cetaceans rely on for food. In some fisheries, cetaceans are captured as bycatch but then retained because of their value as food or bait. In this fashion, cetaceans can become a target of fisheries.

Bycatch is increasing
Most of the world’s cetacean bycatch occurs in gillnet fisheries.[3] The mean annual bycatch in the U.S. alone from 1990–1999 was 6,215 marine mammals, with dolphins and porpoises being the primary cetaceans caught in gillnets.[3] A study by Read et al.[3] estimated global bycatch through observation of U.S. fisheries and came to the conclusion that an annual estimate of 653,365 marine mammals, comprising 307,753 cetaceans and 345,611 pinnipeds were caught from 1990–1994.

While gillnets are a principal concern, other types of nets also pose a problem: trawl nets, purse seines, beach seines, longline gear, and driftnets. Driftnets are known for high rates of bycatch and they affect all cetaceans and other marine species.[4] They are fatal for small toothed whales (Odontocetes) and sperm whales, as well as other marine mammals and fish such as sharks, sea birds and sea turtles. Many fisheries routinely use driftnets exceeding the EU size limit of 2.5 km/boat.[5] This illegal drift-netting is a major issue, especially in important feeding and breeding grounds for cetaceans.

Cetaceans have become the bane of many long-line fishermen in areas where certain whale populations have made a significant comeback in recent years. Whales often follow the boats, devouring the catch and leaving little more for them than fish heads when it is hauled in.

References
1. Alverson, DL, Freeburg, MH, Murawski, SA and JG Pope (1994). A global assessment of fisheries bycatch and discards. Fisheries Technical Paper. Food and Agriculture Organization, Rome. 339 pp.
2. Animal Freedom (2008) Cetacean Bycatch
3. Barlow, J & Cameron, GA (2003). Field experiments show that acoustic pingers reduce marine mammal bycatch in the Californian drift gill net fishery. Marine Mammal Science. 19: 265-283.
4. Demaster, DJ, Fowler, CW, Perry, SL, and ME Richlen (2001). Predation and competition: the impact of fisheries on marine mammal populations over the next one hundred years. Journal of Mammology. 82: 641-651.
5. Jefferson, TA and Curry, BE (1994). A global review of porpoise (Cetacea: Phocoenidae) mortality in gill nets. Biological Conservation. 67(2): 167-183.
6. Miragliuolo, A, Mussi, B, and G Bearzi (2002). Observations of driftnetting off the island of Ischia, Italy, with indirect evidence of dolphin bycatch. European Cetacean Research. 4pp.
7. Read, AJ, Drinker, P, and S Northridge (2006). Bycatch of marine mammals in the U.S. and Global Fisheries. Conservation Biology. 20(1): 163-169.

Jumat, 28 Agustus 2009

What is shark finning?




Shark finning is the practice of slicing off the shark's fins while the shark is still alive and throwing the rest of its body back into the ocean where it can take days to die what must be an agonising death. Some sharks starve to death, others are slowly eaten by other fish, and some drown, because sharks need to keep moving to force water through their gills for oxygen. Shark fins are used as the principal ingredient of shark fin soup, an Asian "delicacy". Demand for shark fin soup has rocketed in recent years due to the increased prosperity of China and other countries in the Far East. Shark fin soup, which can easily cost $100 a bowl, is often served at wedding celebrations so that the hosts can impress their guests with their affluence. Because there is such a high demand for shark fins, traders can make a lot of money from shark fin, but it is the restaurant owners who really "make a killing" in this foul trade.

Fishermen are only interested in the fins because shark meat is of low economical value and takes up too much space in the hold. It also contains urea, which turns to ammonia once the shark has died and contaminates other fish.

Shark fin itself is tasteless, it just provides a gelatinous bulk for the soup which is flavoured with chicken or other stock. Many people, especially the consumers, are unaware of the sufferring that finning causes.

What effect has finning had on shark populations?


To put it bluntly, shark populations have been decimated. Globally. Tens of millions of sharks are slaughtered every year to satisfy the demand for shark fin soup; at least 8,000 tonnes of shark fins are shipped to restaurants around the world. Fishermen report that sharks are getting smaller because they are not being given time to mature. Shark populations take a long time to recover as they can take over seven years to reach maturity and they only raise one or two pups a year. Twenty species of sharks are listed as endangered by the World Conservation Union (IUCN). In a few years many species of shark could become extinct if action is not taken immediately. Populations of many shark species have fallen by over 90%. Since 1972 the number of blacktip sharks has fallen by 93%, tiger sharks by 97% and bull sharks, dusky sharks and smooth hammerheads by 99%.

What will happen to the oceans of sharks become extinct?

The consequences of the decline in shark populations on ocean life are immense. The large shark species are "apex" predators, they are ecological stablisers, once they are gone, all hell will break loose. For example along the US East Coast where large sharks such as black tip and tiger sharks have been virtually elimated, there have been declines in shellfish numbers and a reduction in water quality (shellfish filter sea water). Populations of small sharks, rays and skates have increased rapidly, consuming shellfish at an unsustainable rate. If you remove apex predators from an ecosystem the result is the same as removing the foundations from a building - total collapse.

Ancaman Penyu Jantan

PERUBAHAN IKLIM DAN PEMBANGUNAN ANCAM POPULASI PENYU JANTAN

Selasa, 18 Agustus 2009 | 12:51 WIB
Laporan wartawan KOMPAS Ayu Sulistyowati

DENPASAR, KOMPAS.com — Berdasarkan hasil penelitian penyu dari Universitas Udayana Bali, penyu betina menguasai lebih dari separuh populasi penyu di habitat Jawa Timur, Papua, dan Sunda Kecil. Ini menjadikan ancaman bagi keseimbangan populasi penyu.

Menyusutnya jumlah penyu jan tan ini karena perubahan iklim dengan suhu yang semakin panas dan pembangunan yang kurang terkontrol di sekitar pesisir pantai. Sementara keberhasilan penetasan telur penyu menjadi jantan bergantung kepada suhu udara di dalam pasir pantai yang tidak lebih dari 28 derajat celsius hingga 29 derajat celsius dan berada di bawah pepohonan sekitar pantai.

"Manusianya untuk memperbaiki alam dan habitat penyu ini perlu terus ditumbuhkan. Karena, tidak mudah meremajakan pantai yang rusak sehingga penyu-penyu dapat bertelur dan menetas dengan baik," kata Koordinator Marine Turtle Training dan Research Centre Universitas Udayana drh IB Windia Adnyana PHd, di Denpasar.

Ia menambahkan, tingkat keberhasilan penetasan penyu turun dari 90 persen menjadi 70 persen setiap tahunnya sejak 10 tahun terakhir. Misalnya di Kepala Burung (Papua), keberhasilan penetasan telur mulai berkurang dari 500 ekor per tahun.

Menurut Windia, memperbaiki pantai akibat abrasi atau erosi dengan menambahkan pasir dari pantai lain tidak selamanya baik untuk pengembangbiakan penyu. "Termasuk konservasi penyu pun tidak semuanya positif jika tidak dibarengi dengan memperbaiki alam aslinya seperti devegetasi. Pepohonan sekitar pantai untuk penyu berlindung," ujarnya.

Penelitian dilakukan sejak Oktober 2008 hingga sekarang bekerja sama dengan WWF. Dalam penelitian tersebut, peneliti Udayana mengumpulkan sekitar 400 ekor sampel penyu yang diambil air liur, cukilan kulit, dan darah untuk tes genetika. Dana yang dihabiskan sekitar Rp 1,5 miliar.

Dalam penelitian tersebut juga menemukan adanya perbedaan genetika penyu dari satu daerah dengan daerah lainnya, baik penyu lekang (Lepidochelys oliviacea ), penyu hijau (Chelonia mydas), dan penyu belimbing (Dermochelys coriacea). Meski penyu menyukai datang ke pantai lainnya, ia tetap bertelur di tempat asal mereka.

Windia menjelaskan selama ini penyu dianggap memiliki satu genetika sama dan bisa bertelur di mana saja. Pada penelitian tersebut terungkap, penyu memiliki genetika berbeda dan ditemukan untuk kawasan Jawa Timur, Sunda Kecil, dan Papua terdapat tiga kelompok.

Tiga kelompok genetika penyu tersebut adalah kelompok pertama di Pantai Kepala Burung (Papua) dan Laut Arafuru. Kelompok kedua terbagi menjadi dua, yaitu Jawa Timur-Bali-Jawa Tengah (Cilacap), dan Jawa Timur-Australia Barat. Kelompok ketiga berada di Kalimantan Timur hingga Laut Sulu.

Ia berharap penelitian ini dapat bermanfaat untuk penelitian selanjutnya. "Kami ingin masyarakat luas mengerti dan paham mengenai penyu agar tidak melakukan hal yang percuma. Pelestarian penyu tidak hanya sebatas tidak memakan dan mencuri telur atau dagingnya saja. Habitat dan lingkungannya yang rusak juga perlu diperbaiki," tegas Windia.

Di Pulau Dewata, masyarakat mulai tidak mengonsumsi daging penyu khususnya pada upacara adat atau keagamaan setelah dilarang oleh pemerintah. Kompyang Rata, pedagang sate lilit di Denpasar, mengaku kesulitan mendapatkan daging penyu kembali.

DOLPHIN






Dolphins are marine mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from 1.2 m (4 ft) and 40 kg (90 lb) (Maui's Dolphin), up to 9.5 m (30 ft) and 10 tonnes (9.8 LT; 11 ST) (the Orca or Killer Whale). They are found worldwide, mostly in the shallower seas of the continental shelves, and are carnivores, mostly eating fish and squid. The family Delphinidae is the largest in the Cetacean order, and relatively recent: dolphins evolved about ten million years ago, during the Miocene. Dolphins are among the most intelligent animals and their often friendly appearance and seemingly playful attitude have made them popular in human culture.

Dolphins, along with whales and porpoises, are descendants of terrestrial mammals, most likely of the Artiodactyl order. The ancestors of the modern day dolphins entered the water roughly fifty million years ago, in the Eocene epoch.Hind Limb Buds on Dolphins. An embryo of a Spotted Dolphin in the fifth week of development. The hind limbs are present as small bumps (hind limb buds) near the base of the tail. The pin is approximately 2.5 cm (1.0 in) long.Modern dolphin skeletons have two small, rod-shaped pelvic bones thought to be vestigial hind limbs. In October 2006 an unusual Bottlenose Dolphin was captured in Japan; it had small fins on each side of its genital slit which scientists believe to be a more pronounced development of these vestigial hind limbs.[8]
Dolphins have a streamlined fusiform body, adapted for fast swimming. The tail fin, called the fluke, is used for propulsion, while the pectoral fins together with the entire tail section provide directional control. The dorsal fin, in those species that have one, provides stability while swimming. he head contains the melon, a round organ used for echolocation. In many species, elongated jaws form a distinct beak; species such as the Bottlenose have a curved mouth which looks like a fixed smile. Some species have up to 250 teeth. Dolphins breathe through a blowhole on top of their head. The trachea is anterior to the brain. The dolphin brain is large and highly complex and is different in structure from that of most land mammals.
Unlike most mammals, dolphins do not have hair, except for a few hairs around the tip of their rostrum which they lose shortly before or after birth.[9] The only exception to this is the Boto river dolphin, which has persistent small hairs on the rostrum.[10]Dolphin’s reproductive organs are located on the underside of the body. Males have two slits, one concealing the penis and one further behind for the anus. The female has one genital slit, housing the vagina and the anus. A mammary slit is positioned on either side of the female's genital slit.
Most dolphins have acute eyesight, both in and out of the water, and they can hear frequencies ten times or more above the upper limit of adult human hearing.[11] Though they have a small ear opening on each side of their head, it is believed that hearing underwater is also if not exclusively done with the lower jaw, which conducts sound to the middle ear via a fat-filled cavity in the lower jaw bone. Hearing is also used for echolocation, which all dolphins have. It is believed that dolphin teeth are arranged work as an antenna to receive incoming sound and to pinpoint the exact location of an object.[12] The dolphin's sense of touch is also well-developed, with free nerve endings densely packed in the skin, especially around the snout, pectoral fins and genital area. However, dolphins lack an olfactory nerve and lobes and thus are believed to have no sense of smell.[13] They do have a sense of taste and show preferences for certain kinds of fish. Since dolphins spend most of their time below the surface, tasting the water could function like smelling, in that substances in the water can signal the presence of objects that are not in the dolphin’s mouth.
Though most dolphins do not have hair, they do have hair follicles that may perform some sensory function.[14] The small hairs on the rostrum of the Boto river dolphin are believed to function as a tactile sense possibly to compensate for the Boto's poor eyesight.[15]
Dolphins are often regarded as one of Earth's most intelligent animals, though it is hard to say just how intelligent. Comparing species' relative intelligence is complicated by differences in sensory apparatus, response modes, and nature of cognition. Furthermore, the difficulty and expense of experimental work with large aquatic animals has so far prevented some tests and limited sample size and rigor in others. Compared to many other species however, dolphin behavior has been studied extensively, both in captivity and in the wild. See cetacean intelligence for more details.
Dolphins are social, living in pods of up to a dozen individuals. In places with a high abundance of food, pods can merge temporarily, forming a superpod; such groupings may exceed 1,000 dolphins. Individuals communicate using a variety of clicks, whistles and other vocalizations. They make ultrasonic sounds for echolocation. Membership in pods is not rigid; interchange is common. However, dolphins can establish strong social bonds. Dolphins will stay with injured or ill individuals, even helping them to breathe by bringing them to the surface if needed.[16] This altruism does not appear to be limited to their own species however. The dolphin Moko in New Zealand has been observed guiding a female Pygmy Sperm Whale together with her calf out of shallow water where they had stranded several times.[17] They have also been seen protecting swimmers from sharks by swimming circles around the swimmers[18][19] or charging the sharks to make them go away.[citation needed]
Dolphins also display culture, something long believed to be unique to humans (and possibly other primate species). In May 2005, a discovery in Australia found Indo-Pacific Bottlenose Dolphin (Tursiops aduncus) teaching their young to use tools. They cover their snouts with sponges to protect them while foraging. This knowledge is mostly transferred by mothers to daughters, unlike simian primates, where knowledge is generally passed on to both sexes. Using sponges as mouth protection is a learned behavior.[20] Another learned behavior was discovered among river dolphins in Brazil, where some male dolphins use weeds and sticks as part of a sexual display.[21]
Dolphins engage in acts of aggression towards each other. The older a male dolphin is, the more likely his body is to be covered with bite scars. Male dolphins engage in such acts of aggression apparently for the same reasons as humans: disputes between companions and competition for females. Acts of aggression can become so intense that targeted dolphins sometimes go into exile as a result of losing a fight.
Male Bottlenose Dolphins have been known to engage in infanticide. Dolphins have also been known to kill porpoises for reasons which are not fully understood, as porpoises generally do not share the same diet as dolphins and are therefore not competitors for food supplies.[22]
Reproduction and sexuality
Dolphin copulation happens belly to belly and though many species engage in lengthy foreplay, the actual act is usually brief, but may be repeated several times within a short timespan. The gestation period varies per species; for the small Tucuxi dolphin, this period is around 11 to 12 months, while for the Orca the gestation period is around 17 months. They usually become sexually active at a young age, even before reaching sexual maturity. The age of sexual maturity varies by species and gender.
Dolphins are known to have sex for reasons other than reproduction, sometimes also engaging in homosexual behavior.[23] Various species sometimes engage in sexual behavior including copulation with other dolphin species.[23] Sexual encounters may be violent, with male dolphins sometimes showing aggressive behavior towards both females and other males.[23][24] Occasionally, dolphins behave sexually towards other animals, including humans.[25]
Feeding
Various methods of feeding exist among and within species, some apparently exclusive to a single population. Fish and squid are the main food, but the False Killer Whale and the Killer Whale also feed on other marine mammals.
One common feeding method is herding, where a pod squeezes a school of fish into a small volume, known as a bait ball. Individual members then take turns plowing through the ball, feeding on the terrified fish. Coralling is a method where dolphins chase fish into shallow water to more easily catch them. In South Carolina, the Atlantic Bottlenose Dolphin takes this further with strand feeding, driving prey onto mud banks for easy access.[26] In some places, Orcas come to the beach to capture sea lions. Some species also whack fish with their fluke, stunning them and sometimes knocking them out of the water.
Reports of cooperative human-dolphin fishing date back to the ancient Roman author and natural philosopher Pliny the Elder.[27] A modern human-dolphin partnership currently operates in Laguna, Santa Catarina, Brazil. Here, dolphins drive fish towards fishermen waiting along the shore and signal the men to cast their nets. The dolphins’ reward is the fish that escape the nets.[28][29]
Threats
Natural threats
Except for humans (discussed below), dolphins have few natural enemies. Some species or specific populations have none, making them apex predators. For most smaller species, only a few larger species of shark such as the bull shark, dusky shark, tiger shark and great white shark are a potential risk, especially for calves. Some of the larger dolphin species such as Orcas may also prey on some of the smaller species, but this seems rare. Dolphins also suffer from a wide variety of diseases and parasites.[citation needed]
Human threats
See also: Dolphin drive hunting


Dead Atlantic White-Sided Dolphins in Hvalba on the Faroe Islands, killed in a drive hunt.
Some dolphin species face an uncertain future, especially some of the river dolphin species such as the Amazon River Dolphin, and the Ganges and Yangtze River Dolphin, which are critically or seriously endangered. A 2006 survey found no individuals of the Yangtze River Dolphin, which now appears to be functionally extinct.[37]
Environmental contamination of oceans, seas, and rivers is a concern. Pesticides, heavy metals, plastics, and other industrial and agricultural pollutants which do not disintegrate rapidly in the environment reduce dolphin populations, and cause tissue buildup of high levels of contaminants. Injuries or deaths due to collisions with boats, especially their propellers, are also common.
Various fishing methods, most notably purse seine fishing for tuna and the use of drift and gill nets, unintentionally kill many dolphins.[38] Accidental by-catch in gill nets and incidental captures in antipredator nets that protect marine fish farms are common and pose a risk for mainly local dolphin populations.[39][40] In some parts of the world such as Taiji in Japan and the Faroe Islands, dolphins are traditionally considered as food, and killed in harpoon or drive hunts.
Dolphin safe labels attempt to reassure consumers that fish and other marine products have been caught in a dolphin-friendly way.
Loud underwater noises, for example resulting from naval sonar use, live firing exercises or certain offshore construction projects such as wind farms may be harmful to dolphins, increasing stress, damaging hearing and causing decompression sickness by forcing them to surface too quickly to escape the noise.[41][42]

References
1. ^ "[The American Heritage Dictionary of the English Language, Fourth Edition online entry at Dictionary.com". [http://dictionary.reference.com/browse/Dolphin. Retrieved December 17 2006..
2. ^ "Dictionary.com Style guide, animal names". http://dictionary.reference.com/writing/styleguide/animal.html Dictionary.com. Retrieved November 4 2007.
3. ^ "Dolphin Safari sightings log". 2006. http://www.dolphinsafari.com/sightingslog.html. Retrieved December 17 2006.
4. ^ Texas Tech University (1997). "Mammals of Texas - Rough-toothed Dolphin". http://www.nsrl.ttu.edu/tmot1/stenbred.htm. Retrieved December 8 2006.
5. ^ Robin's Island. "Dolphins at SeaWorld California". http://www.robins-island.org/dolphins_database.php?filter=Sea_World_California. Retrieved December 17 2006.
6. ^ Denise L. Herzing, Kelly Moewe and Barbara J. Brunnick (2003). "Interspecies interactions between Atlantic spotted dolphins, Stenella frontalis and bottlenose dolphins, Tursiops truncatus, on Great Bahama Bank, Bahamas". http://www.trustedpartner.com/docs/library/000059/Herzing%20Moewe%20Brunnick%20final.pdf. Retrieved December 17 2006.
7. ^ Lee, Jeanette J. (2005). "Livescience.com - Whale-Dolphin Hybrid Has Baby Wholphin Louis Herman, interviewed for Associated Press". http://www.livescience.com/animalworld/ap_050415_wolphin.html Livescience.com - Whale-Dolphin Hybrid Has Baby Wholphin. Retrieved April 26 2007.
8. ^ Associated Press / FOX news (2006). "Japanese Researchers Find Dolphin With 'Remains of Legs'". http://www.foxnews.com/story/0,2933,227572,00.html. Retrieved November 6 2006.
9. ^ The Institute for Marine Mammal Studies (IMMS). "Dolphin Frequently Asked Questions: Why is a dolphin a mammal and not a fish?". http://www.dolphinsrus.com/dolphinfaq.php. Retrieved February 21 2008.
10. ^ VirtualExplorers.org. "Amazon River Dolphin fact sheet All About Dolphins". http://www.virtualexplorers.org/ARD/Dolphin/bkgd.htm. Retrieved February 21 2008.
11. ^ The Dolphin Institute.
12. ^ Goodson, A.D.; Klinowska, M. (1990). Thomas; Kastelein. eds. A Proposed Echolocation Receptor for the Bottlenose Dolphin (Tursiops truncatus): Modelling the Receive Directivity from Tooth and Lower Jaw Geometry NATO ASI Series A: Sensory Abilities of Cetaceans. 196:255-267. NY: Plenum. ISBN 0-30-643695-7.
13. ^ SeaWorld. "Bottlenose Dolphins - Senses". http://www.seaworld.org/animal-info/info-books/bottlenose/senses.htm. Retrieved December 17 2006.
14. ^ Bjorn Mauck, Ulf Eysel and Guide Dehnhardt (2000). "Selective heating of vibrissal follicles in seals (Phoca Vitulina) and dolphins (Sotalia Fluviatilis Guianensis)". http://jeb.biologists.org/cgi/reprint/203/14/2125.pdf. Retrieved March 11, 2007.
15. ^ Laurie Stepanek (1998). "Amazon River Dolphin (Inia geoffrensis)". http://www.tmmsn.org/mmgulf/inia_geoffrensis.html. Retrieved March 11, 2007.
16. ^ Davidson College, biology department (2001). "Bottlenose Dolphins - Altruism". http://www.bio.davidson.edu/people/vecase/behavior/Spring2001/Ewart/Altruism.html. Retrieved March 12 2008.
17. ^ Ray Lilley for Associated Press (2008). "Dolphin Appears to Guide Whales to Sea". http://ap.google.com/article/ALeqM5gd1AJMmldYiTtyFHmMzp1vIPdppgD8VBPTPG0. Retrieved March 12 2008.
18. ^ CBC News (2004). "Dolphins save swimmers from shark". http://www.cbc.ca/world/story/2004/11/24/dolphin_newzealand041124.html. Retrieved March 11, 2007.
19. ^ Celizic, Mike (2007-11-08). "Dolphins save surfer from becoming shark’s bait". MSNBC. http://today.msnbc.msn.com/id/21689083/?GT1=10547. Retrieved 2007-11-08.
20. ^ Rowan Hooper (2005). "Dolphins teach their children to use sponges". http://www.newscientist.com/article.ns?id=dn7475. Retrieved December 17 2006.
21. ^ Nic Fleming, Science correspondent for the Telegraph (2008). "Dolphins woo females with bunches of weeds". http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/12/05/eadolphin105.xml. Retrieved February 11 2008.
22. ^ Dr. George Johnson. "Is Flipper A Senseless Killer?". http://www.txtwriter.com/Onscience/Articles/Flipper.html. Retrieved December 17 2006.
23. ^ a b c Herzing, D.L.; Rogers, C.A. (2005). "Directionality of sexual aggression in mixed-species encounters between Atlantic Spotted dolphins and Bottlenose dolphins in the Bahamas". http://www.univ-lr.fr/Labo/lbem/ecs2005/Abstract%20book.pdf. Retrieved September 18 2007.
24. ^ "Aggression in bottlenose dolphins: evidence for sexual coercion, male-male competition, and female tolerance through analysis of tooth-rake marks and behavior". 2005. http://www.monkeymiadolphins.org/Pdf/Scott%20et%20al%202005.pdf. Retrieved September 18 2007.
25. ^ "Cetaceans that are typically lonely and seek human company". 2003. pp. 266-268. http://whitelab.biology.dal.ca/lb/Samuels%20Bejder%20et%20al%202003.pdf. Retrieved December 17 2006.
26. ^ U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service. "Coastal Stock(s) of Atlantic Bottlenose Dolphin: Status Review and Management Proceedings and Recommendations from a Workshop held in Beaufort, North Carolina, 13 September 1993 – 14 September 1993". pp. 56–57. http://www.nmfs.noaa.gov/pr/pdfs/species/coastalbottlenosestock.pdf.
27. ^ M.B. Santos, R. Fernández, A. López, J.A. Martínez and G.J. Pierce (2007). "Variability in the diet of bottlenose dolphin, Tursiops truncatus, in Galician waters, north-western Spain, 1990 – 2005". http://journals.cambridge.org/production/action/cjoGetFulltext?fulltextid=703604. Retrieved April 3 2007.
28. ^ "Brazil's sexiest secret The Telegraph". 2006. p. 1. http://www.telegraph.co.uk/travel/main.jhtml?xml=/travel/2006/03/09/etbrazil09.xml. Retrieved March 11, 2007.
29. ^ Dr. Moti Nissani (2007). "Bottlenose Dolphins in Laguna Requesting a Throw Net Supporting material for Dr. Nissani's presentation at the 2007 International Ethological Conference". http://www.youtube.com/watch?v=ECk0yMifmzw. Retrieved February 13 2008.
30. ^ the dolphin communication project. "Atlantic Spotted Dolphin vocalizations, chapter Delphinid vocalizations". http://www.dolphincommunicationproject.org/DissPDFs/Chapter4.pdf,. Retrieved August 7 2007.
31. ^ Au, W. W. L. (1993). The Sonar of Dolphins. New York: Springer.
32. ^ Mukhametov, L. M.; Supin, A. Ya. (1978). "Sleep and vigil in dolphins". Marine mammals. Moscow: Nauka.
33. ^ Mukhametov, Lev (1984). "Sleep in marine mammals". Experimental Brain Research 8 (suppl.): 227–238.
34. ^ Dallas Grasby (1994). ", L.M. Mukhametov, Excerpts from "Sleep in marine mammals”". Experimental Brain Research 8 (suppl.). http://www.bio.net/bionet/mm/neur-sci/1994-August/003910.html , L.M. Mukhametov,. Retrieved February 11 2008.
35. ^ James G. McCormick (PhD), Department of Anesthesiology, Wake Forest University School of Medicine, Winston-Salem, North Carolina (2007). "Behavioral Observations of Sleep and Anesthesia in the Dolphin: Implications for Bispectral Index Monitoring of Unihemispheric Effects in Dolphins". http://www.anesthesia-analgesia.org/cgi/content/full/104/1/239#F199. Retrieved February 11 2008.
36. ^ BBC (2008). "Sperm whales caught 'cat napping'". http://news.bbc.co.uk/1/hi/scotland/edinburgh_and_east/7254522.stm. Retrieved April 9 2008.
37. ^ Douglas Williams for Shanghai Daily (2006). "Yangtze dolphin may be extinct". http://www.shanghaidaily.com/art/2006/12/04/298862/Yangtze_dolphin_may_be_extinct__researchers_say.htm. Retrieved December 9 2006.
38. ^ {{cite web |title=The End of the Line: How overfishing is changing the world and what we eat Author=Clover, Charles. |year=2004 |publisher=Ebury Press, London. ISBN 0-09-189780-7
39. ^ Díaz López, Bruno; Shirai, J.A. (2006). "Bottlenose dolphin (Tursiops truncatus) presence and incidental capture in a marine fish farm on the north-eastern coast of Sardinia (Italy)". Journal of Marine Biological Ass. UK 87: 113–117. doi:10.1017/S0025315407054215.
40. ^ Díaz López, Bruno (2006). "Interactions between Mediterranean bottlenose dolphins (Tursiops truncatus) and gillnets off Sardinia, Italy". ICES Journal of Marine Science 63: 946–951. doi:10.1016/j.icesjms.2005.06.012.
41. ^ CBC news (2003). "Navy sonar may be killing whales, dolphins". http://www.cbc.ca/health/story/2003/10/09/sonar031009.html. Retrieved October 27, 2008.
42. ^ "Npower renewables Underwater noise & vibration, section 9.4". http://www.natwindpower.co.uk/northhoyle/pdfs/fepa/chapter9.pdf. Retrieved October 27, 2008.
43. ^ http://dougsmith.ancients.info/feac50tar.html
44. ^ "[http://bmj.bmjjournals.com/cgi/content/full/bmj;331/7527/1231 Randomised controlled trial of animal facilitated therapy with dolphins in the treatment of depression coauthors=Christian Antonioli, Michael A. Reveley]". 2005. http://bmj.bmjjournals.com/cgi/content/full/bmj;331/7527/1231.
45. ^ Biju Basil, Maju Mathews (2005). "Methodological concerns about animal-facilitated therapy with dolphins". BMJ 331 (7529): 1407. doi:10.1136/bmj.331.7529.1407. PMID 16339258. http://www.bmj.com/cgi/content/full/331/7529/1407.
46. ^ Lori Marino, Scott O. Lilienfeld (2007). "Dolphin-Assisted Therapy: more flawed data and more flawed conclusions" (PDF). Anthrozoos 20 (3): 239–49. doi:10.2752/089279307X224782. http://www.marineconnection.org/docs/DAT%20Paper%202007.pdf. Retrieved 2008-02-20.
47. ^ PBS - Frontline. "The Story of Navy dolphins". http://www.pbs.org/wgbh/pages/frontline/shows/whales/etc/navycron.html. Retrieved June 8, 2008.
48. ^ BBC News (2000). "Iran buys kamikaze dolphins". http://news.bbc.co.uk/2/hi/world/middle_east/670551.stm. Retrieved June 7, 2008.

Sabtu, 08 Agustus 2009

Fishermen Attack Amazon Dolphins


Fishermen have been attacking and killing freshwater dolphins in Brazil’s Amazon River Basin, seriously threatening conservation efforts of two species. Having just seen the documentary The Cove, the disturbing images of viciously slaughtered dolphins is burned into my brain, and I really hope steps can be taken to end these unnecessary killings as well. Apparently the fishermen are concerned that the dolphins are stealing their fish and damaging their gear, and have taken to stabbing them with machetes and harpoons.

There are also powerful cultural taboos in the region that suggest the animals bring bad luck, which may be part of the fishermen’s motivation. Researchers from the Mamirauá Institute for Sustainable Development in Tefe, Brazil, recovered 18 dead dolphins, 6 of the boto species and 12 belonging to the tucuxi species, during a recent survey of mortality rates. Somewhat encouragingly they reported that none of the dolphins body parts were missing, which would indicate that they were being harvested for charms or bait, as is sometimes the case in Brazil and Columbia. While this may mean that not as many dolphins will be killed, the deaths still pose a serious threat to the two species. The researchers say that one key to preventing the dolphin slaughters is to establish environmental education programs for local children to help dispel negative attitudes about dolphins, and teach the importance of protecting the species.

Posted by Danny Jensen on August 5, 2009 at 5:17 pm