Nazi Explosives, Torpedoes and Naval Mines: The Way Ocean Creatures Thrives on Abandoned Weapons

In the brackish sea off the Germany's shoreline rests a collection of World War II explosives, torpedo heads and mines. Dumped from barges at the conclusion of the World War II and neglected, countless explosives have become matted together over the decades. They form a decaying carpet on the low-depth, silty ocean floor of the Lübeck Bay in the western part of the Baltic.

Over the decades, the Nazi arsenal was overlooked and forgotten about. A increasing amount of tourists traveled to the sandy beaches and tranquil sea for jetskiing, kite surfing and entertainment venues. Underwater, the weapons decayed.

Researchers anticipated to see a barren area, with no life because it was all poisoned, states Andrey Vedenin.

When the first scientists went searching to see what they were doing to the marine environment, some of us thought they would find a desert, with no life because it was all poisoned, says Andrey Vedenin.

What they found astonished them. Vedenin remembers his team members exclaiming in amazement when the ROV first sent the images back. It was a great moment, he says.

Numerous of sea creatures had made their homes amid the explosives, developing a regenerated habitat more populous than the seabed surrounding it.

This underwater metropolis was proof to the tenacity of marine life. Truly remarkable how much marine organisms we find in places that are supposed to be dangerous and dangerous, he says.

Over 40 sea stars had piled on to one accessible chunk of explosive material. They were dwelling on metal shells, fuse pockets and transport cases just a short distance from its explosive filling. Fish, crabs, sea anemones and mussels were all found on the historic weapons. It resembles a marine reef in terms of the amount of animal life that was present, notes Vedenin.

Surprising Population Density

An average of more than forty thousand animals were dwelling on every meter squared of the munitions, researchers reported in their paper on the finding. The adjacent region was much poorer in life, with only 8,000 organisms on every square metre.

It is paradoxical that things that are intended to kill everything are drawing so much marine organisms, states Vedenin. It's evident how the natural world adapts after a major disaster such as the second world war and how, in some way, life finds its way to the most dangerous locations.

Man-made Features as Ocean Habitats

Man-made structures such as sunken vessels, wind turbines, drilling platforms and undersea pipes can offer substitutes, compensating for some of the removed marine environment. This study demonstrates that weapons could be similarly advantageous – the explosion of life on those in the Lübeck Bay is probable to be found elsewhere.

Between 1946 and 1948, 1.6 million tons of munitions were disposed of off the Germany's coast. Numerous of workers placed them in boats; some were placed in allocated areas, others just discarded at sea while traveling. This is the first time experts have recorded how ocean organisms has responded.

Global Instances of Ocean Adaptation

• In the United States, decommissioned oil and gas structures have turned into marine habitats
• Submerged vessels from the first world war have become habitats for marine life along the Potomac River in Maryland
• Tank tracks that have become habitat to coral off Asan in the Pacific island

These places become even more valuable for marine life as the seas are increasingly depleted by fishing, seafloor dredging and anchoring. Sunken ships and weapons dump sites practically serve as sanctuaries – they are not national parks, but nearly any kind of anthropogenic disturbance is prohibited, explains Vedenin. Consequently a many of species that are usually scarce or declining, such as the cod fish, are flourishing.

Future Issues

Anywhere military conflict has happened in the last century, surrounding seas are typically strewn with munitions, explains Vedenin. Many millions of tons of dangerous substances remain in our seas.

The positions of these weapons are poorly recorded, partly because of national borders, classified military information and the reality that archives are stored in historic archives. They present an detonation and safety risk, as well as threat from the persistent emission of hazardous substances.

As the German government and other countries start removing these relics, scientists hope to preserve the ecosystems that have formed around them. In the Bay of Lübeck explosives are presently being removed.

It would be wise to replace these steel remains originating from weapons with certain safer, some safe materials, like possibly man-made habitats, suggests Vedenin.

He currently aspires that what transpires in Lübeck sets a model for substituting structures after munitions removal in other locations – because even the most damaging armaments can become scaffolding for marine organisms.