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

In the brackish waters off the German shoreline lies a graveyard of World War II explosives, torpedo heads and naval mines. Thrown off vessels at the end of the second world war and left behind, numerous explosives have accumulated over the years. They comprise a rusting carpet on the shallow, silty ocean floor of the Bay of Lübeck in the western tip of the Baltic.

Over the decades, the Nazi arsenal was ignored and forgotten about. A increasing amount of visitors flocked to the sandy beaches and tranquil sea for jetskiing, kite surfing and amusement parks. Underwater, the munitions deteriorated.

Researchers anticipated to see a desert, with no organisms because it was all toxic, explains Andrey Vedenin.

When the initial researchers went searching to see what they were doing to the marine environment, some of us anticipated finding a lifeless zone, with nothing living there because it was all poisoned, states a scientist.

What they discovered surprised them. Vedenin recounts his team members shouting with surprise when the underwater vehicle first relayed pictures. This was a great moment, he says.

Countless of sea creatures had established habitats amid the explosives, developing a renewed habitat more populous than the sea floor nearby.

This underwater metropolis was testament to the tenacity of marine life. Indeed remarkable how much life we find in areas that are considered dangerous and harmful, he explains.

More than 40 starfish had gathered on to one accessible chunk of explosive material. They were living on metal shells, detonator compartments and storage boxes just centimetres from its explosive filling. Fish, crustaceans, anemones and mussels were all discovered on the historic weapons. It resembles a marine reef in terms of the quantity of fauna that was there, states Vedenin.

Remarkable Creature Concentration

An average of more than 40,000 animals were dwelling on every square metre of the weapons, researchers reported in their research on the discovery. The nearby seabed was much less diverse, with only eight thousand creatures on every square metre.

It is surprising that objects that are intended to kill everything are drawing so much life, explains Vedenin. One can observe how nature adjusts after a catastrophic event such as the World War II and how, in certain respects, life finds its way to the most dangerous areas.

Man-made Features as Marine Habitats

Artificial features such as shipwrecks, wind turbines, oil rigs and undersea pipes can create replacements, restoring some of the lost habitat. This research demonstrates that weapons could be similarly positive – the proliferation of marine organisms on those in the Bay of Lübeck is probable to be repeated in different areas.

Between 1946 and the post-war period, 1.6 million tonnes of arms were discarded off the German coast. Thousands of individuals loaded them in boats; a portion were dropped in specific sites, the remainder just thrown overboard en route. This is the initial instance researchers have studied how ocean organisms has adapted.

Worldwide Instances of Marine Adaptation

• In the US, decommissioned drilling platforms have turned into marine habitats
• Submerged vessels from the World War I have become homes for wildlife along the Potomac in Maryland
• Tank tracks that have become environment to coral off Asan in Guam

These locations become even more crucial for organisms as the seas are increasingly stripped by commercial fishing, bottom trawling and anchoring. Shipwrecks and munitions areas practically act as sanctuaries – they are not national parks, but nearly any kind of anthropogenic disturbance is prohibited, states Vedenin. As a result a many of species that are otherwise uncommon or decreasing, such as the cod fish, are prospering.

Future Factors

Wherever armed conflict has occurred in the past 100 years, nearby oceans are often littered with explosives, explains Vedenin. Millions of tons of volatile compounds lie in our marine environments.

The sites of these munitions are insufficiently recorded, partially because of sovereign limits, classified military information and the reality that documents are hidden in old files. They pose an detonation and security danger, as well as danger from the continuous release of toxic chemicals.

As the German government and additional nations start clearing these artifacts, researchers aim to safeguard the habitats that have developed around them. In the Bay of Lübeck munitions are already being cleared.

Researchers recommend substitute these steel remains remaining from weapons with certain safer, some safe materials, like maybe artificial reefs, suggests Vedenin.

He now hopes that what occurs in Lübeck creates a precedent for substituting material after munitions removal elsewhere – because including the most harmful armaments can become foundation for ocean ecosystems.