Nazi Explosives, Torpedo Heads and Mines: The Way Ocean Creatures Flourishes on Dumped Weapons

In the brackish sea off the German coast rests a collection of World War II explosives, torpedoes and naval mines. Dumped from boats at the conclusion of the World War II and neglected, numerous munitions have fused into clusters over the years. They create a decaying blanket on the low-depth, silty ocean floor of the Lübeck Bay in the western tip of the Baltic.

Over the years, the wartime weapons was overlooked and forgotten about. A increasing amount of visitors flocked to the coastal areas and tranquil sea for jetskiing, kite surfing and amusement parks. Beneath the surface, the weapons decayed.

Researchers anticipated to see a lifeless zone, with no life because it was all contaminated, explains Andrey Vedenin.

When the team went looking to see what they were affecting to the marine environment, the team anticipated finding a lifeless zone, with nothing living there because it was all contaminated, states the lead researcher.

What they observed astonished them. Vedenin recounts his scientists reacting with shock when the underwater vehicle first transmitted footage. That moment was a great moment, he says.

Thousands of sea creatures had made their homes among the explosives, developing a revitalized marine community richer than the seabed around it.

This ocean community was proof to the resilience of life. It is actually astonishing how much marine organisms we discover in locations that are supposed to be dangerous and risky, he explains.

More than 40 starfish had piled on to one exposed fragment of TNT. They were living on steel casings, detonator compartments and carrying containers just a short distance from its volatile core. Marine fish, crabs, sea anemones and bivalves were all observed on the historic weapons. It's similar to a marine reef in terms of the amount of fauna that was inhabiting the area, states Vedenin.

Unexpected Creature Concentration

An average of more than 40,000 creatures were living on every meter squared of the munitions, researchers reported in their paper on the observation. The adjacent region was much less diverse, with only 8,000 creatures on every meter squared.

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, marine life establishes itself to the most hazardous locations.

Man-made Structures as Marine Environments

Man-made structures such as sunken vessels, offshore windfarms, drilling platforms and undersea pipes can provide substitutes, compensating for some of the lost habitat. This investigation shows that munitions could be similarly beneficial – the proliferation of life on those in the Lübeck Bay is expected to be duplicated elsewhere.

Between 1946 and 1948, 1.6 million tons of weapons were disposed of off the Germany's shoreline. Numerous of individuals transported them in boats; some were deposited in designated areas, others just discarded at sea during transport. This is the first time scientists have documented how marine life has reacted.

Worldwide Examples of Ocean Transformation

• In the United States, decommissioned oil and gas structures have become marine habitats
• Sunken ships from the World War I have become environments for creatures along the Potomac River in Maryland
• Tank tracks that have become habitat to reef-building organisms off Asan beach in the Pacific island

These locations become even more valuable for marine life as the seas are increasingly denuded by fishing, seafloor dredging and boat mooring. Shipwrecks and explosive disposal locations practically function as refuges – they are not official reserves, but nearly any kind of human activity is banned, says Vedenin. Therefore a numerous of species that are usually rare or decreasing, such as the Baltic cod, are thriving.

Coming Considerations

Anywhere military conflict has taken place in the past 100 years, surrounding seas are often littered with weapons, says Vedenin. Millions of tonnes of dangerous substances remain in our seas.

The positions of these explosives are insufficiently documented, in part because of national borders, classified armed forces records and the situation that records are buried in historical records. They present an detonation and safety danger, as well as threat from the ongoing leakage of hazardous substances.

As the German government and additional nations embark on removing these artifacts, experts plan to safeguard the habitats that have established in their vicinity. In the Bay of Lübeck munitions are currently being extracted.

Researchers recommend substitute these metal carcasses originating from munitions with certain more secure, some safe materials, like perhaps concrete structures, states Vedenin.

He now hopes that what transpires in the Bay of Lübeck establishes a model for substituting material after weapon clearance in different areas – because including the most damaging armaments can become foundation for marine organisms.