Nazi Munitions, Torpedoes and Naval Mines: How Marine Life Prosper on Discarded Weapons

In the brackish waters off the German coast rests a wasteland of World War II explosives, torpedoes and naval mines. Discarded from boats at the conclusion of the second world war and forgotten about, thousands explosives have accumulated over the years. They form a corroding carpet on the shallow, silty ocean floor of the Bay of Lübeck in the western tip of the Baltic Sea.

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

We initially thought to see a lifeless zone, with nothing living there because it was all contaminated, says a scientist.

When the team went looking to see what they were affecting to the ecosystem, researchers expected to see a barren area, with nothing living there because it was all poisoned, says a scientist.

What they observed astonished them. Vedenin recounts his scientists exclaiming in amazement when the submersible first transmitted footage. That moment was a remarkable experience, he notes.

Numerous of marine animals had settled on the weapons, forming a renewed ecosystem more populous than the sea floor nearby.

This underwater metropolis was proof to the persistence of marine life. It is actually remarkable how much marine organisms we observe in places that are supposed to be dangerous and dangerous, he states.

Over 40 starfish had piled on to one exposed chunk of TNT. They were living on metal shells, detonator compartments and carrying containers just centimetres from its explosive filling. Fish, crabs, anemones and bivalves were all observed on the historic weapons. It's similar to a coral reef in terms of the quantity of fauna that was inhabiting the area, states Vedenin.

Unexpected Creature Concentration

An mean of more than 40,000 creatures were residing on every meter squared of the weapons, experts reported in their research on the finding. The adjacent region was much poorer in life, with only eight thousand creatures on every square metre.

It is paradoxical that objects that are meant to destroy everything are drawing so much life, says Vedenin. One can observe how nature adjusts after a major disaster such as the World War II and how, in some way, marine life finds its way to the most risky locations.

Man-made Structures as Marine Habitats

Man-made features such as sunken vessels, wind turbines, drilling platforms and pipelines can offer substitutes, compensating for some of the removed habitat. This research demonstrates that explosives could be comparably advantageous – the proliferation of marine organisms on those in the Lübeck Bay is likely to be found in different areas.

Between the late 1940s and 1948, 1.6 million tons of munitions were dumped off the German coast. Countless of individuals transported them in vessels; some were dropped in allocated locations, the remainder just thrown overboard en route. This is the initial instance experts have studied how ocean organisms has responded.

Global Instances of Ocean Adaptation

• In the United States, decommissioned drilling platforms have transformed into reef ecosystems
• Sunken ships from the World War I have become environments for wildlife along the Potomac in Maryland
• Tank tracks that have become home to coral off Asan beach in the Pacific island

These areas become even more valuable for wildlife as the marine environments are increasingly depleted by fishing, bottom trawling and boat mooring. Shipwrecks and weapons dump sites effectively function as protected areas – they are not official reserves, but nearly any kind of human activity is banned, says Vedenin. Consequently a many of species that are otherwise rare or diminishing, such as the Baltic cod, are flourishing.

Coming Considerations

Wherever armed conflict has happened in the past 100 years, adjacent waters are usually strewn with weapons, explains Vedenin. Many millions of tonnes of explosive material lie in our marine environments.

The locations of these munitions are poorly recorded, partially because of sovereign limits, restricted armed forces records and the fact that documents are buried in historic archives. They create an detonation and security danger, as well as danger from the ongoing leakage of poisonous compounds.

As the German government and other countries start removing these remains, researchers aim to protect the marine communities that have developed in their vicinity. In the Lübeck Bay weapons are presently being removed.

Researchers recommend substitute these metal carcasses remaining from weapons with some less dangerous, various safe objects, like possibly artificial reefs, suggests Vedenin.

He now aspires that what transpires in Lübeck creates a model for replacing habitats after munitions removal in different areas – because even the most destructive armaments can become foundation for ocean ecosystems.