Nazi Munitions, Torpedoes and Naval Mines: The Way Ocean Creatures Prosper on Dumped Armaments

In the slightly salty sea off the German coast sits a wasteland of Nazi bombs, torpedo heads and mines. Dumped from vessels at the conclusion of the second world war and neglected, numerous munitions have become matted together over the decades. They form a rusting layer on the shallow, silty seafloor of the Bay of Lübeck in the western part of the Baltic.

Over the decades, the Nazi arsenal was ignored and neglected. A increasing amount of tourists traveled to the coastal areas and calm waters for jetskiing, kite surfing and amusement parks. Beneath the surface, the munitions decayed.

We initially expected to see a desert, with no life because it was all contaminated, states the lead researcher.

When the first scientists went looking to see what they were affecting to the marine environment, the team thought they would find a desert, with no life because it was all poisoned, explains the lead researcher.

What they observed astonished them. Vedenin remembers his colleagues shouting with surprise when the underwater vehicle first relayed pictures. This was a great moment, he notes.

Numerous of sea creatures had established habitats among the weapons, forming a regenerated habitat denser than the seabed nearby.

This underwater metropolis was proof to the persistence of marine life. It is actually astonishing how much life we find in places that are considered toxic and harmful, he says.

In excess of 40 starfish had gathered on to one visible chunk of TNT. They were dwelling on steel casings, fuse pockets and carrying containers just a short distance from its explosive filling. Marine fish, crustaceans, anemones and mussels were all discovered on the old munitions. It's similar to a coral reef in terms of the quantity of creatures that was there, says Vedenin.

Surprising Population Density

An mean of more than 40,000 organisms were living on every square metre of the munitions, experts documented in their research on the finding. The adjacent region was much less diverse, with only eight thousand creatures on every meter squared.

It is paradoxical that items that are designed to kill everything are hosting so much life, explains Vedenin. One can observe how the natural world adjusts after a devastating occurrence such as the second world war and how, in some way, life establishes itself to the most hazardous places.

Man-made Structures as Ocean Habitats

Man-made structures such as shipwrecks, wind turbines, drilling platforms and undersea pipes can create substitutes, replacing some of the removed habitat. This investigation shows that explosives could be similarly beneficial – the bloom of marine organisms on those in the Lübeck Bay is probable to be duplicated in other locations.

Between the late 1940s and 1948, 1.6m tons of weapons were disposed of off the Germany's coast. Thousands of people loaded them in vessels; some were deposited in allocated locations, others just discarded at sea during transport. This is the initial instance researchers have recorded how ocean organisms has reacted.

Worldwide Instances of Ocean Transformation

• In the US, decommissioned oil and gas structures have transformed into coral reefs
• Submerged vessels from the World War I have become habitats for creatures along the Potomac River in Maryland
• Tank tracks that have become environment to reef-building organisms off Asan beach in the Pacific island

These locations become even more important for organisms as the seas are increasingly stripped by commercial fishing, seafloor dredging and anchoring. Sunken ships and weapons dump sites essentially function as refuges – they are not national parks, but virtually any kind of human activity is prohibited, states Vedenin. Therefore a numerous of organisms that are otherwise uncommon or declining, such as the Baltic cod, are flourishing.

Coming Issues

Wherever warfare has happened in the last century, nearby oceans are usually littered with weapons, states Vedenin. Millions of tons of volatile compounds lie in our marine environments.

The locations of these weapons are inadequately documented, in part because of sovereign limits, classified defense data and the reality that records are stored in old files. They pose an explosion and security risk, as well as danger from the ongoing leakage of hazardous substances.

As Germany and additional nations start clearing these artifacts, experts aim to protect the ecosystems that have formed nearby. In the Lübeck Bay weapons are already being cleared.

It would be wise to replace these iron structures remaining from munitions with some more secure, some non-dangerous materials, like possibly concrete structures, states Vedenin.

He currently wishes that what happens in the Bay of Lübeck establishes a model for substituting material after explosive extraction in other locations – because even the most destructive armaments can become foundation for ocean ecosystems.