World War II Explosives, Torpedoes and Mines: How Marine Life Thrives on Abandoned Armaments

In the brackish sea off the German coast lies a wasteland of Nazi bombs, torpedo heads and mines. Discarded from vessels at the conclusion of the second world war and forgotten about, thousands munitions have accumulated over the years. They create a rusting blanket on the low-depth, muddy seafloor of the Bay of Lübeck in the western part of the Baltic Sea.

Over the years, the Nazi arsenal was ignored and forgotten about. A increasing amount of visitors flocked to the sandy beaches and tranquil sea for water sports, kiteboarding and amusement parks. Beneath the surface, the weapons deteriorated.

Some of us anticipated to see a desert, with no life because it was all contaminated, says the lead researcher.

When the first scientists went investigating to see what they were affecting to the marine environment, researchers thought they would find a barren area, with no organisms because it was all contaminated, explains Andrey Vedenin.

What they discovered surprised them. Vedenin remembers his scientists shouting with surprise when the submersible first sent the images back. That moment was a remarkable experience, he recalls.

Thousands of sea creatures had settled on the munitions, creating a regenerated marine community denser than the ocean bottom around it.

This underwater metropolis was evidence to the tenacity of life. It is actually remarkable how much life we discover in places that are supposed to be dangerous and harmful, he says.

Over 40 sea stars had piled on to one accessible fragment of TNT. They were residing on steel casings, fuse pockets and storage boxes just centimetres from its volatile core. Marine fish, crustaceans, sea anemones and bivalves were all observed on the discarded explosives. You could compare it with a marine reef in terms of the abundance of fauna that was inhabiting the area, states Vedenin.

Unexpected Creature Concentration

An mean of more than 40,000 organisms were living on every square metre of the weapons, experts wrote in their study on the observation. The surrounding area was much sparser, with only eight thousand individuals on every square metre.

It is ironic that objects that are intended to eliminate all life are drawing so much marine organisms, explains Vedenin. One can observe how the natural world evolves after a devastating occurrence such as the World War II and how, in certain respects, marine life returns to the most risky places.

Man-made Structures as Ocean Environments

Artificial features such as shipwrecks, offshore windfarms, oil rigs and pipelines can create replacements, restoring some of the removed habitat. This study reveals that explosives could be similarly positive – the proliferation of life on those in the Lübeck Bay is likely to be found elsewhere.

Between the late 1940s and 1948, 1.6 million tons of arms were discarded off the German shoreline. Thousands of people transported them in boats; a portion were deposited in designated areas, others just dumped while traveling. This is the initial instance experts have studied how marine life has adapted.

Global Examples of Marine Transformation

• In the United States, decommissioned oil and gas structures have become coral reefs
• Shipwrecks from the first world war have become homes for creatures along the Potomac in Maryland
• Tank tracks that have become home to coral off Asan in Guam

These locations become even more valuable for wildlife as the marine environments are increasingly denuded by commercial fishing, seafloor dredging and boat mooring. Shipwrecks and munitions areas practically serve as refuges – they are not official reserves, but nearly any kind of human activity is restricted, explains Vedenin. Therefore a numerous of species that are usually rare or diminishing, such as the Baltic cod, are flourishing.

Coming Considerations

Wherever military conflict has taken place in the recent history, adjacent waters are typically strewn with weapons, states Vedenin. Millions of tonnes of explosive material rest in our seas.

The positions of these explosives are insufficiently documented, partly because of national borders, secret armed forces records and the fact that documents are hidden in historical records. They create an detonation and safety risk, as well as danger from the continuous leakage of toxic chemicals.

As the German government and additional nations begin clearing these artifacts, scientists hope to safeguard the marine communities that have formed nearby. In the Lübeck Bay weapons are presently being removed.

We should substitute these steel remains left from munitions with certain more secure, various non-dangerous materials, like maybe artificial reefs, says Vedenin.

He presently aspires that what occurs in Lübeck establishes a model for replacing material after weapon clearance in different areas – because also the most harmful weaponry can become framework for new life.