Should shipwrecks be left alone?
BBC News, By Chris Summers, 31/10/2011
It is 10 years since a deal to protect the world's thousands of shipwrecks, but the UK and several other major maritime powers are yet to ratify it. Should this underwater heritage be protected or is it acceptable to plunder?
When a ship sinks and lives are lost, it is a tragedy for the families involved.
The most famous of them all, the Titanic, is more than four miles down and to get there as film director James Cameron has shown, involves using "robot" divers which are prohibitively expensive - around $50,000 (£32,000) a day.
Salvage firms are most interested in ships with cargoes of gold and silver, ceramics or other valuables.
In November 2001, the Unesco Convention on the Protection of Underwater Cultural Heritage was finally adopted.
But 10 years on, it still has not been ratified by the UK, France, Russia, China or the US, and commercial archaeologists continue to locate wrecks, remove their cargoes and sell them off.
The British government will get 20% of whatever Odyssey recovers but Unesco says the deal broke the spirit of the convention.
Robert Yorke, chairman of the Joint Nautical Archaeology Policy Committee, argues the real reason the government, and the Ministry of Defence in particular, are not ratifying the convention was becayse of a misplaced fear about the implications for British warships around the world.
The internationally recognised concept of "sovereign immunity" means nations should not interfere with foreign warships.
Under the Military Remains Act 1986, a number of British warships around the world are protected, including several ships sunk during the Falklands conflict. Also covered are several German U-boats in UK waters.
There are an estimated three million wrecks on the seabed.
Unesco believes attitudes to the exploration of wrecks are out of step with land archaeology.
"The looting of the tombs of Tutankhamen is now considered unacceptable, so why is the looting of shipwrecks considered acceptable?" says Unesco's Tim Curtis.
Caesar Bita is a Kenyan maritime archaeologist and an expert on ancient trade between China and Africa.
He believes he is close to finding the remains of the legendary fleet of Zheng He. According to stories, a ship from the Chinese admiral's fleet is thought to have foundered off the coast of Kenya in the early 1400s.
Bita says the wrecks could provide evidence of early contact between China and East Africa.
But the idea that mass heritage is at risk is scaremongering, says Dr Sean Kingsley, a director of Wreck Watch International and a spokesman for Odyssey.
"Sand dredging, offshore fishing, pipeline laying, scuba-diving trophy hunters and governments' failures to police these industries are the true greatest threats to the world's shipwrecks."
He argues that the nations which have ratified the convention represent only 5% of the world's coastline.
That is something which concerns naval veterans.
Last month seven European naval associations wrote a letter to The Times to protest at Dutch salvage firms who they said were "desecrating" the graves of three British warships, which were torpedoed off the Netherlands in 1914, in their search for scrap metal.
But some wartime wrecks have been protected.
The Polish Maritime Office recently placed a 500m diving exclusion zone around the wreck of the Wilhelm Gustloff, which sank in the Baltic in January 1945. The ship, packed with 10,000 German refugees from the Eastern Front, was sunk by a Soviet sub. Only 500 survived and it is the single largest death toll at sea.
In 2006 Australian divers located the wreck of a Japanese mini-submarine, M24, three miles off Sydney.The sub, which is believed to contain the bodies of two young Japanese submariners, came to grief after taking part in an attack on Sydney harbour in 1942.
The Australian authorities placed a similar 500m zone around the wreck, monitored by sensitive hydrophones, with a A$1.1m (£725,587) fine for anyone who interferes with the wreck.
Maritime archaeologist Mark Wilde-Ramsing is unlikely to get to meet the relatives of those who died on the wreck he is exploring.
The Queen Anne's Revenge was an English pirate ship commanded by Edward Teach, better known as Blackbeard, which sank off the coast of North Carolina in 1718.
Many of the exhibits - including pistols, rum bottles, slave shackles and a surgeon's kit - are now on display at a museum in North Carolina but sadly Blackbeard's treasure was nowhere to be found.
But the convention does not just apply to shipwrecks.
It also covers archaeological sites which are now underwater, such as Port Royal in Jamaica, a former pirate harbour once described as the "wickedest city on Earth", as well as prehistoric sites in the North Sea, and the waters off Alexandria, in Egypt.
But if wrecks and ruins continue to fascinate, what is the best way to satisfy the public curiosity?
"It has created the myth that all shipwrecks are bottomless money pits and that hull and mass artefact recovery are best avoided," suggests Dr Kingsley.
But Prof Jon Adams, head of maritime archaeology at the University of Southampton, strongly disagrees.
"If it was falling to pieces and nobody came to see it I'd agree, but its conservation has been a highly successful research project in its own right and it is the most popular maritime museum in world with over 300,000 visitors a year," he says.
Many experts believe the future is in underwater trails or virtual museums, where the wreck remains in situ and cameras relay real-time pictures to a museum on the surface.
Australia is also home to a number of "underwater heritage trails", with plaques offering information for divers.
"We want people to come and visit but to take only pictures and leave only bubbles," he says.
Prof Beeker, who has also discovered the wreck of Captain Kidd's pirate ship the Quedagh Merchant, said all divers had to be "sensitive" to the fact that wrecks are essentially graveyards and he criticised some who took the skulls of Japanese seamen from the many wrecks in Truk Lagoon in the Pacific.
While it pushes in situ preservation, Unesco is hopeful several major countries, including Australia and France, might soon ratify the convention to give it more weight.
Dr Kingsley is doubtful and says self-regulation is the best way forward: "The future is going to be an expensive and unimaginable journey, a challenge best met by sharing ideas, information and enlightened management, not by using the Unesco convention to slap parking tickets' on robots' windows."
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