World War II Munitions, Torpedoes and Mines: How Marine Life Thrives on Discarded Weapons

In the brackish sea off the German shoreline lies a collection of Nazi bombs, torpedo heads and naval mines. Thrown off boats at the conclusion of the World War II and neglected, countless weapons have accumulated over the decades. They create a rusting layer on the shallow, silty ocean floor of the Bay of Lübeck in the western part of the Baltic Sea.

Over the decades, the Nazi arsenal was overlooked and neglected. A increasing amount of tourists traveled to the coastal areas and tranquil sea for jetskiing, kite surfing and entertainment venues. Beneath the surface, the weapons decayed.

Some of us thought to see a barren area, with nothing living there because it was all contaminated, says a scientist.

When the team went investigating to see what they were affecting to the marine environment, the team anticipated finding a barren area, with no organisms because it was all toxic, states Andrey Vedenin.

What they found astonished them. Vedenin recounts his colleagues shouting with surprise when the underwater vehicle first transmitted footage. It was a remarkable experience, he recalls.

Countless of sea creatures had settled among the munitions, creating a revitalized ecosystem more populous than the sea floor surrounding it.

This underwater metropolis was testament to the tenacity of life. Truly astonishing how much marine organisms we discover in locations that are expected to be toxic and harmful, he states.

In excess of 40 sea stars had gathered on to one exposed fragment of TNT. They were living on iron containers, ignition chambers and transport cases just centimetres from its explosive filling. Fish, crustaceans, anemones and bivalves were all observed on the historic weapons. You could compare it with a marine reef in terms of the amount of creatures that was present, says Vedenin.

Unexpected Population Density

An mean of more than 40,000 animals were residing on every meter squared of the munitions, experts wrote in their paper on the finding. The nearby seabed was much poorer in life, with only eight thousand organisms on every meter squared.

It is paradoxical that items that are meant to eliminate everything are attracting so much life, states Vedenin. One can observe how the natural world evolves after a devastating occurrence such as the World War II and how, in some way, life returns to the most dangerous areas.

Man-made Features as Ocean Environments

Artificial constructions such as sunken vessels, wind turbines, oil rigs and pipelines can offer substitutes, compensating for some of the lost habitat. This research shows that weapons could be comparably advantageous – the explosion of life on those in the Bay of Lübeck is expected to be duplicated in other locations.

Between the late 1940s and the post-war period, 1.6m tons of arms were discarded off the Germany's coast. Numerous of individuals transported them in vessels; some were placed in designated areas, the remainder just discarded at sea en route. This is the first time scientists have recorded how ocean organisms has responded.

Worldwide Instances of Ocean Transformation

• In the US, decommissioned oil and gas structures have turned into marine habitats
• Shipwrecks from the World War I have become habitats for creatures along the Potomac in Maryland
• Tank tracks that have become habitat to reef-building organisms off Asan beach in the Pacific island

These places become even more crucial for organisms as the marine environments are increasingly stripped by fishing, seafloor dredging and anchoring. Shipwrecks and weapons dump sites practically function as protected areas – they are not official reserves, but nearly any kind of human activity is banned, says Vedenin. As a result a lot of species that are usually scarce or decreasing, such as the Baltic cod, are thriving.

Future Factors

Wherever military conflict has happened in the recent history, surrounding seas are usually containing munitions, explains Vedenin. Many millions of tons of volatile compounds remain in our oceans.

The sites of these explosives are inadequately recorded, in part because of sovereign limits, secret armed forces records and the fact that records are stored in historical records. They create an explosion and security risk, as well as risk from the continuous leakage of toxic chemicals.

As Germany and additional nations embark on clearing these artifacts, experts plan to safeguard the habitats that have formed around them. In the Bay of Lübeck weapons are presently being cleared.

We should replace these steel remains remaining from munitions with certain more secure, various harmless structures, like possibly artificial reefs, says Vedenin.

He now aspires that what occurs in Lübeck creates a example for substituting material after munitions removal elsewhere – because even the most destructive weaponry can become scaffolding for ocean ecosystems.