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

In the slightly salty sea off the Germany's shoreline rests a graveyard of Nazi bombs, torpedo heads and naval mines. Thrown off boats at the end of the second world war and forgotten about, thousands munitions have fused into clusters over the years. They comprise a decaying carpet on the low-depth, muddy seafloor of the Lübeck Bay in the western tip of the Baltic.

Over the years, the wartime weapons was ignored and neglected. A growing number of tourists came to the sandy beaches and calm waters for jetskiing, kite surfing and amusement parks. Below the waves, the weapons decayed.

Researchers anticipated to see a barren area, with nothing living there because it was all toxic, explains Andrey Vedenin.

When the first scientists went investigating to see what they were affecting to the marine environment, some of us thought they would find a barren area, with no organisms because it was all poisoned, explains the lead researcher.

What they discovered astonished them. Vedenin recalls his team members shouting with surprise when the submersible first relayed pictures. This was a memorable occasion, he says.

Thousands of ocean life had settled among the munitions, forming a revitalized ecosystem richer than the seabed surrounding it.

This underwater metropolis was proof to the resilience of marine life. Indeed surprising how much marine organisms we find in locations that are expected to be dangerous and harmful, he states.

More than 40 sea stars had gathered on to one exposed piece of explosive material. They were dwelling on iron containers, fuse pockets and carrying containers just centimetres from its explosive filling. Fish, crustaceans, 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 inhabiting the area, says Vedenin.

Surprising Creature Concentration

An mean of more than forty thousand animals were residing on every meter squared of the explosives, scientists reported in their research on the discovery. The nearby seabed was much less diverse, with only eight thousand creatures on every meter squared.

It is paradoxical that items that are meant to kill everything are hosting so much life, states Vedenin. It's evident how nature adjusts after a catastrophic event such as the second world war and how, in certain respects, life establishes itself to the most risky locations.

Artificial Structures as Ocean Environments

Artificial constructions such as sunken vessels, wind turbines, oil rigs and pipelines can provide substitutes, restoring some of the removed marine environment. This investigation reveals that weapons could be similarly positive – the explosion of life on those in the Bay of Lübeck is probable to be duplicated elsewhere.

Between 1946 and 1948, 1.6 million tonnes of weapons were disposed of off the Germany's coast. Thousands of workers transported them in boats; some were dropped in designated areas, others just discarded at sea en route. This is the first time experts have studied how ocean organisms has reacted.

Worldwide Instances of Marine Transformation

  • In the US, decommissioned oil and gas structures have transformed into marine habitats
  • Shipwrecks from the first world war have become homes for marine life along the Potomac River in the state of Maryland
  • Military vehicle parts that have become habitat to reef-building organisms off Asan beach in the Pacific island

These locations become even more important for organisms as the seas are increasingly denuded by fishing, bottom trawling and boat mooring. Shipwrecks and explosive disposal locations practically function as protected areas – they are not official reserves, but virtually any kind of anthropogenic disturbance is restricted, states Vedenin. Consequently a lot of organisms that are typically uncommon or decreasing, such as the Baltic cod, are prospering.

Coming Factors

Wherever military conflict has taken place in the past 100 years, nearby oceans are usually littered with munitions, states Vedenin. Millions of tonnes of dangerous substances lie in our marine environments.

The locations of these weapons are insufficiently mapped, partially because of national borders, classified military information and the situation that documents are stored in historical records. They pose an detonation and safety hazard, as well as danger from the continuous emission of toxic chemicals.

As Germany and additional nations start extracting these artifacts, scientists hope to protect the ecosystems that have developed in their vicinity. In the Lübeck Bay explosives are currently being cleared.

It would be wise to substitute these metal carcasses remaining from weapons with certain safer, various harmless objects, like maybe man-made habitats, states Vedenin.

He presently hopes that what occurs in Lübeck sets a example for replacing material after weapon clearance in other locations – because including the most destructive explosives can become foundation for ocean ecosystems.

Meghan Lee
Meghan Lee

A seasoned gaming analyst with over a decade of experience in online slots and casino strategy development.