New Scientist Article...
Interview: Riches from the ocean floor
10 November 2007
From New Scientist Print Edition.
Is it right for commercial companies to exploit archaeological treasures? Shouldn't they go to museums where the public and researchers could have access to them? John Opperman of salvage company Odyssey Marine Exploration, which recently retrieved half a million coins from an Atlantic shipwreck, tells Jim Giles about the thrills of salvage and why his company has every right to profit from what it finds
Objects from shipwrecks are of international archaeological interest. Shouldn't they be salvaged by museum curators rather than commercial companies such as yours?
We are very professional about what we do. Our attitude is never, "That looks cool, let's pick it up." We always have proper conservation plans in place. You have to do an initial survey to know where things are before touching anything. We do that to the level of best practice archaeology. I wish I could take the people who throw mud at us and sit them down and show them what we're doing.
But then you sell the objects. Shouldn't they go into museums?
They should, and we have just opened a museum attraction in Tampa, Florida. I spent all morning moving a cannon we recovered from one of our sites in the Mediterranean. You would be surprised to see the amount of stuff we do archaeological work on and which we keep in our permanent collection: bottles, ceramics, forks, knives, cannonballs. Academics say all we're doing is finding stuff and selling it. Yes, we do offer a portion of our finds to collectors, but only items that are not of cultural value and that we have numerous duplicates of in our inventory collection.
What about making them available to researchers?
We already do that. We will also shortly make several of our archaeological reports available to the public on our website.
Your company recently found a shipwreck in the Atlantic Ocean which you code-named Black Swan, and from which you have recovered 500,000 silver coins worth up to $500 million. The Spanish government claims it may own the cargo. What are the issues here?
I can't say anything more yet about the coins or the ship's location. All I can say is that it's a colonial vessel found in international waters in the Atlantic. We're trying our best to find out what ship it is. I wasn't on our vessel when we discovered it, but it was still an absolute high. We had stumbled across something that was so wonderful. It was a Eureka moment. I celebrated with a nice bottle of champagne - though it would have been apple juice out there, as there is never alcohol on our ships.
There has also been controversy over another ship you've found, which you think is HMS Sussex and which the Spanish are laying claim to.
HMS Sussex went down off the coast of Spain in 1694. It was carrying coins that the British government planned to use to buy the support of the Duke of Savoy in the war against France. We did two months of work on a site in the Mediterranean off the Spanish coast in December 2005 and January 2006, and we think it's the Sussex but we can't say for sure at this point. The work stopped because we had protesters in boats coming out to our ship. That was a threat to navigation and the safety of the crew. I guess the protesters were Spanish citizens who think they have a legitimate claim to the Sussex. Our work was temporarily halted by the Spanish government in 2006 but an agreement in March 2007 between the governments of Spain, Andalusia and the UK authorised us to continue. We are awaiting the appointment of two Andalusian archaeologists, who will be joining us on board as observers.
Who does own the Sussex?
The British government. The Sussex was clearly on a military mission; it was sovereign to England. That's what I don't understand about the Spanish reaction. The British government retained our services on a contractor basis, and together we arrived at a fair arrangement as compensation for our recovery work and expertise.
What happens when you find the wreck of a commercial ship?
If it's a merchant vessel the question is who insured it and is that company still operating today, because they would have paid out a claim. The SS Republic, which we discovered in 2003, 160 kilometres off the coast of Savannah, Georgia, is a perfect example. We found the insurance company - Atlantic Mutual. They paid out a claim in 1865, so technically they own the site. We bought out their interests and received title to it.
Was there anything special about the Republic?
It went down in 1865. It was a key vessel for providing goods to New Orleans after the American civil war. We recovered approximately 50,000 coins and 14,000 artefacts from the site, which was only part of what she carried. One of the things we found was a bottle of Lee & Perrin's Worcester sauce. You pick that up and you say, "Wow, the last time someone handled this was 140 years ago!" That's the coolest thing in the world. Every ship is a time capsule. Life on a ship stops the moment it goes under the water.
CALLOUT BOX “We found a bottle of Worcester sauce, last handled 140 years ago”
How do you go about identifying ships to search for?
It's amazing what you can find in archives. Most of the information lies in old records held in the UK, the Netherlands, Spain, France and Italy. Archives contain manifests of ships - a list of what was on board. We're looking for evidence of highly valuable cargo: silver coins, gold coins, diamonds, jewels, but if a site is archaeologically or historically rich we don't just throw out what we find because it's not lucrative. We're not only looking for money and treasure.
A lot of information about where ships have sunk is hit and miss. If a ship burned for three days, people got off it and no one saw it sink: that's not good location information. Plus, people often knew the latitude, but east and west was more tricky. We've seen ships that were 100 kilometres from where they should have been. We look at information such as whether lifeboats were picked up, what the prevailing winds would have been for that time of year, how big the vessel was, how many sails it had, and put it all through an algorithm that tells us the spots with the highest probability of finding what we're looking for. That can cut down the search region from 2500 square kilometres to less than 150.
How many wrecks do you have lined up to investigate?
We have a database of 3000 shipwrecks. We discount anything in shallow water: we assume that if people can access a site easily then they've probably picked over it. We find ships every day. But we never see a name on the back. We have to do the forensics to identify the vessel.
Profile
John Opperman has been director of archaeology, research and conservation at Odyssey Marine Exploration in Tampa, Florida, for three years. His training includes degrees in operational management and computer systems and an MBA in finance.