Nazi Munitions, Torpedo Heads and Mines: The Way Marine Life Prosper on Abandoned Weapons

In the slightly salty waters off the Germany's shoreline sits a graveyard of World War II explosives, torpedo heads and naval mines. Thrown off boats at the conclusion of the World War II and forgotten about, countless munitions have fused into clusters over the decades. They comprise a rusting layer on the shallow, silty ocean floor of the Bay of Lübeck in the western tip of the Baltic.

Over the decades, the explosive stockpile was overlooked and neglected. A increasing amount of tourists came to the sandy beaches and calm waters for water sports, kite surfing and amusement parks. Below the waves, the munitions eroded.

We initially expected to see a desert, with no organisms because it was all poisoned, says a scientist.

When the team went investigating to see what they were affecting to the marine environment, researchers expected to see a desert, with no life because it was all contaminated, says Andrey Vedenin.

What they discovered amazed them. Vedenin remembers his team members shouting with surprise when the ROV first sent the images back. It was a great moment, he says.

Thousands of marine animals had settled amid the munitions, forming a renewed marine community more populous than the sea floor nearby.

This marine city was testament to the tenacity of life. Indeed astonishing how much marine organisms we find in locations that are expected to be toxic and harmful, he says.

More than 40 sea stars had clustered on to one accessible piece of TNT. They were dwelling on metal shells, detonator compartments and storage boxes just centimetres from its volatile core. Marine 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 abundance of fauna that was present, says Vedenin.

Unexpected Population Density

An mean of more than forty thousand creatures were living on every meter squared of the explosives, scientists wrote in their paper on the discovery. The surrounding area was much poorer in life, with only eight thousand creatures on every square metre.

It is surprising that things that are meant 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 establishes itself to the most risky locations.

Man-made Structures as Marine Environments

Artificial features such as shipwrecks, offshore windfarms, oil rigs and pipelines can offer replacements, replacing some of the destroyed marine environment. This study demonstrates that munitions could be comparably positive – the proliferation of life on those in the Lübeck Bay is probable to be duplicated in other locations.

Between 1946 and 1948, 1.6 million tons of weapons were disposed of off the German coast. Numerous of workers placed them in boats; some were deposited in specific sites, others just thrown overboard during transport. This is the first time experts have studied how ocean organisms has responded.

Worldwide Instances of Marine Adaptation

  • In the United States, decommissioned oil and gas structures have become reef ecosystems
  • Sunken ships from the World War I have become environments for creatures along the Potomac in Maryland
  • Tank tracks that have become habitat to coral off Asan beach in Guam

These locations become even more valuable for organisms as the oceans are increasingly stripped by fishing, seafloor dredging and anchoring. Sunken ships and munitions areas effectively function as protected areas – they are not national parks, but almost any kind of anthropogenic disturbance is prohibited, states Vedenin. Consequently a numerous of species that are typically uncommon or decreasing, such as the Baltic cod, are thriving.

Future Factors

Anywhere military conflict has occurred in the recent history, adjacent waters are usually littered with weapons, explains Vedenin. Millions of tons of dangerous substances lie in our seas.

The positions of these munitions are poorly mapped, partly because of national borders, secret defense data and the situation that archives are stored in historic archives. They create an explosion and safety hazard, as well as risk from the persistent emission of hazardous substances.

As the German government and other countries begin removing these relics, experts hope to safeguard the marine communities that have developed nearby. In the Lübeck Bay weapons are presently being extracted.

We should substitute these metal carcasses remaining from weapons with certain more secure, some non-dangerous objects, like possibly man-made habitats, suggests Vedenin.

He now wishes that what transpires in Lübeck sets a precedent for substituting habitats after explosive extraction elsewhere – because including the most damaging weaponry can become foundation for new life.

Cody Martin
Cody Martin

A passionate gamer and tech writer with over a decade of experience covering indie and AAA titles across multiple platforms.