Nazi Bombs, Torpedoes and Naval Mines: The Way Marine Life Flourishes on Discarded Armaments

In the slightly salty waters off the Germany's coast rests a collection of World War II explosives, torpedoes and mines. Dumped from vessels at the conclusion of the second world war and left behind, numerous explosives have become matted together over the decades. They comprise a rusting layer on the shallow, muddy ocean floor of the Bay of Lübeck in the western tip of the Baltic.

Over the years, the wartime weapons was overlooked and neglected. A growing number of tourists came to the coastal areas and tranquil sea for water sports, kite surfing and amusement parks. Underwater, the munitions decayed.

Researchers anticipated to see a barren area, with no life because it was all toxic, states Andrey Vedenin.

When the first scientists went looking to see what they were affecting to the ecosystem, the team anticipated finding a barren area, with no life because it was all contaminated, explains Andrey Vedenin.

What they found amazed them. Vedenin recounts his scientists exclaiming in amazement when the ROV first sent the images back. This was a remarkable experience, he notes.

Thousands of marine animals had settled on the explosives, forming a regenerated marine community more populous than the ocean bottom around it.

This marine city was proof to the tenacity of marine life. It is actually remarkable how much life we observe in places that are supposed to be dangerous and harmful, he says.

More than 40 sea stars had clustered on to one accessible chunk of explosive material. They were dwelling on iron containers, ignition chambers and transport cases just a short distance from its explosive filling. Fish, crustaceans, anemones and mussels were all found on the discarded explosives. It's similar to a coral reef in terms of the abundance of animal life that was present, notes Vedenin.

Surprising Creature Concentration

An mean of more than 40,000 creatures were dwelling on every meter squared of the munitions, experts wrote in their research on the observation. The nearby seabed was much less diverse, with only 8,000 individuals on every meter squared.

It is paradoxical that objects that are designed to destroy all life are drawing so much life, states Vedenin. You can see how nature evolves after a devastating occurrence such as the World War II and how, in some way, marine life finds its way to the most dangerous places.

Artificial Features as Marine Environments

Man-made structures such as sunken vessels, wind turbines, drilling platforms and undersea pipes can create substitutes, replacing some of the destroyed habitat. This research demonstrates that explosives could be equally advantageous – the proliferation of life on those in the Lübeck Bay is probable to be found elsewhere.

Between 1946 and 1948, 1.6 million tonnes of arms were disposed of off the Germany's coast. Countless of workers transported them in boats; some were dropped in specific sites, the remainder just thrown overboard during transport. This is the initial instance experts have recorded how marine life has reacted.

Worldwide Instances of Marine Transformation

• In the US, retired drilling platforms have turned into marine habitats
• Shipwrecks from the World War I have become homes for creatures along the Potomac River in the state of Maryland
• Tank tracks that have become environment to reef-building organisms off Asan beach in Guam

These areas become even more important for marine life as the oceans are increasingly denuded by commercial fishing, seafloor dredging and anchoring. Shipwrecks and explosive disposal locations essentially function as sanctuaries – they are not national parks, but virtually any kind of human activity is restricted, says Vedenin. Consequently a numerous of species that are typically scarce or decreasing, such as the Baltic cod, are flourishing.

Coming Factors

Wherever military conflict has occurred in the past 100 years, nearby oceans are often littered with explosives, says Vedenin. Many millions of tonnes of explosive material remain in our marine environments.

The locations of these explosives are inadequately mapped, in part because of international boundaries, secret defense data and the situation that archives are buried in historical records. They create an detonation and security danger, as well as danger from the persistent emission of toxic chemicals.

As the German government and other countries begin clearing these artifacts, scientists hope to protect the ecosystems that have formed nearby. In the Lübeck Bay munitions are already being cleared.

Researchers recommend substitute these steel remains left from weapons with certain less dangerous, various safe materials, like maybe man-made habitats, says Vedenin.

He currently aspires that what transpires in Lübeck establishes a precedent for substituting structures after munitions removal elsewhere – because also the most damaging armaments can become framework for new life.