Nazi Explosives, Torpedo Heads and Mines: The Way Marine Life Thrives on Dumped Weapons

In the brackish sea off the Germany's coast rests a wasteland of World War II explosives, torpedoes and naval mines. Discarded from barges at the conclusion of the World War II and forgotten about, thousands weapons have become matted together over the years. They create a rusting blanket on the low-depth, silty ocean floor of the Lübeck Bay in the western tip of the Baltic Sea.

Over the years, the Nazi arsenal was overlooked and forgotten about. A increasing amount of tourists traveled to the sandy beaches and tranquil sea for water sports, kite surfing and amusement parks. Underwater, the weapons decayed.

We initially expected to see a lifeless zone, with no organisms because it was all poisoned, states the lead researcher.

When the initial researchers went looking to see what they were affecting to the ecosystem, the team anticipated finding a desert, with no organisms because it was all toxic, explains a scientist.

What they discovered astonished them. Vedenin recounts his team members reacting with shock when the submersible first sent the images back. This was a remarkable experience, he says.

Numerous of marine animals had settled on the munitions, creating a revitalized ecosystem richer than the sea floor surrounding it.

This underwater metropolis was evidence to the persistence of life. It is actually astonishing how much marine organisms we find in places that are considered dangerous and dangerous, he explains.

In excess of 40 sea stars had piled on to one accessible fragment of explosive material. They were dwelling on iron containers, detonator compartments and transport cases just a short distance from its explosive filling. Fish, crustaceans, sea anemones and bivalves were all discovered on the discarded explosives. You could compare it with a reef ecosystem in terms of the amount of fauna that was inhabiting the area, says Vedenin.

Remarkable Creature Concentration

An average of more than 40,000 organisms were living on every square metre of the weapons, researchers documented in their paper on the observation. The adjacent region was much sparser, with only 8,000 individuals on every square metre.

It is ironic that objects that are intended to kill all life are attracting so much life, states Vedenin. One can observe how nature evolves after a devastating occurrence such as the World War II and how, in some way, life returns to the most risky areas.

Man-made Features as Ocean Environments

Man-made structures such as sunken vessels, offshore windfarms, oil rigs and pipelines can offer substitutes, compensating for some of the removed marine environment. This investigation demonstrates that munitions could be similarly beneficial – the bloom of life on those in the Bay of Lübeck is likely to be found in different areas.

Between the late 1940s and the post-war period, 1.6m tonnes of weapons were disposed of off the German shoreline. Thousands of individuals transported them in vessels; some were dropped in allocated sites, others just dumped while traveling. This is the first time researchers have documented how ocean organisms has responded.

Worldwide Instances of Ocean Adaptation

• In the United States, decommissioned oil and gas structures have become reef ecosystems
• Shipwrecks from the first world war have become habitats for marine life along the Potomac River in the state of Maryland
• Military vehicle parts that have become habitat to coral off Asan beach in Guam

These areas become even more important for organisms as the oceans are increasingly denuded by fishing, bottom trawling and boat mooring. Shipwrecks and munitions areas effectively act as refuges – they are not national parks, but almost any kind of human activity is prohibited, says Vedenin. Therefore a numerous of organisms that are typically rare or declining, such as the Baltic cod, are thriving.

Future Factors

Wherever warfare has happened in the past 100 years, surrounding seas are usually littered with explosives, says Vedenin. Many millions of tons of dangerous substances lie in our seas.

The locations of these explosives are inadequately recorded, partly because of national borders, classified military information and the reality that documents are hidden in old files. They present an detonation and security risk, as well as danger from the persistent emission of hazardous substances.

As Germany and different states start clearing these remains, experts aim to safeguard the ecosystems that have formed in their vicinity. In the Bay of Lübeck weapons are currently being extracted.

Researchers recommend replace these metal carcasses originating from weapons with certain safer, some non-dangerous objects, like maybe artificial reefs, states Vedenin.

He currently hopes that what happens in Lübeck creates a model for replacing habitats after munitions removal in different areas – because even the most damaging weaponry can become foundation for new life.