World War II Munitions, Torpedo Heads and Mines: The Way Marine Life Prosper on Dumped Armaments

In the brackish sea off the German shoreline rests a graveyard of Nazi bombs, torpedoes and naval mines. Thrown off barges at the conclusion of the second world war and left behind, numerous explosives have accumulated over the decades. They form a decaying blanket on the shallow, muddy ocean floor of the Lübeck Bay in the western part of the Baltic Sea.

Over the years, the explosive stockpile was ignored and forgotten about. A growing number of tourists came to the sandy beaches and tranquil sea for jetskiing, kiteboarding and entertainment venues. Below the waves, the weapons deteriorated.

Some of us anticipated to see a barren area, with no life because it was all poisoned, explains Andrey Vedenin.

When the initial researchers went searching to see what they were affecting to the ecosystem, researchers anticipated finding a lifeless zone, with no organisms because it was all poisoned, explains a scientist.

What they discovered astonished them. Vedenin recalls his colleagues reacting with shock when the ROV first relayed pictures. That moment was a memorable occasion, he notes.

Thousands of sea creatures had settled amid the munitions, forming a revitalized ecosystem more populous than the sea floor surrounding it.

This underwater metropolis was evidence to the persistence of life. It is actually remarkable how much marine organisms we discover in places that are expected to be toxic and harmful, he says.

More than 40 starfish had piled on to one exposed piece of TNT. They were residing on iron containers, detonator compartments and carrying containers just a short distance from its volatile core. Fish, crustaceans, sea anemones and mussels were all observed on the discarded explosives. It's similar to a coral reef in terms of the abundance of fauna that was inhabiting the area, states Vedenin.

Remarkable Creature Concentration

An average of more than forty thousand organisms were dwelling on every square metre of the explosives, experts reported in their research on the observation. The surrounding area was much less diverse, with only eight thousand creatures on every square metre.

It is surprising that items that are meant to kill everything are drawing so much marine organisms, states Vedenin. You can see how the natural world adjusts after a catastrophic event such as the World War II and how, in some way, life establishes itself to the most dangerous areas.

Man-made Structures as Marine Environments

Man-made structures such as shipwrecks, wind turbines, oil rigs and pipelines can offer substitutes, compensating for some of the removed marine environment. This research demonstrates that weapons could be similarly positive – the bloom of life on those in the Bay of Lübeck is expected to be found in different areas.

Between the late 1940s and the post-war period, 1.6 million tonnes of arms were discarded off the German coast. Numerous of people loaded them in barges; a portion were placed in designated areas, the remainder just discarded at sea en route. This is the initial instance researchers have recorded how marine life has responded.

Global Instances of Marine Adaptation

• In the US, decommissioned oil and gas structures have turned into reef ecosystems
• Submerged vessels from the World War I have become homes for marine life along the Potomac River in the state of Maryland
• Military vehicle parts that have become home to coral off Asan in Guam

These locations become even more crucial for wildlife as the oceans are increasingly depleted by fishing, bottom trawling and boat mooring. Sunken ships and explosive disposal locations practically act as sanctuaries – they are not official reserves, but nearly any kind of human activity is restricted, states Vedenin. Consequently a lot of species that are usually rare or declining, such as the Baltic cod, are flourishing.

Future Considerations

Anywhere warfare has taken place in the past 100 years, adjacent waters are often littered with weapons, states Vedenin. Millions of tonnes of volatile compounds rest in our seas.

The positions of these munitions are insufficiently recorded, in part because of national borders, classified armed forces records and the fact that records are buried in historical records. They pose an detonation and security hazard, as well as danger from the continuous release of toxic chemicals.

As the German government and different states embark on clearing these relics, researchers aim to preserve the marine communities that have developed around them. In the Bay of Lübeck weapons are presently being removed.

Researchers recommend substitute these steel remains remaining from weapons with certain more secure, various non-dangerous structures, like possibly man-made habitats, says Vedenin.

He now wishes that what occurs in Lübeck sets a precedent for substituting material after explosive extraction in other locations – because even the most harmful explosives can become framework for new life.