Nazi Explosives, Torpedo Heads and Mines: How Ocean Creatures Flourishes on Dumped Weapons

In the slightly salty sea off the German coast sits a graveyard of World War II explosives, torpedo heads and mines. Thrown off boats at the conclusion of the World War II and left behind, thousands munitions have fused into clusters over the decades. They comprise a corroding blanket on the low-depth, muddy ocean floor of the Bay of Lübeck in the western tip of the Baltic.

Over the years, the wartime weapons was overlooked and forgotten about. A growing number of visitors came to the coastal areas and tranquil sea for jetskiing, kite surfing and amusement parks. Underwater, the munitions deteriorated.

Researchers thought to see a lifeless zone, with no organisms because it was all poisoned, says the lead researcher.

When the initial researchers went searching to see what they were doing to the ecosystem, the team thought they would find a barren area, with nothing living there because it was all poisoned, states the lead researcher.

What they discovered surprised them. Vedenin recounts his scientists exclaiming in amazement when the underwater vehicle first sent the images back. It was a great moment, he notes.

Thousands of sea creatures had made their homes amid the explosives, creating a revitalized habitat denser than the ocean bottom nearby.

This underwater metropolis was testament to the resilience of life. Truly surprising how much life we observe in locations that are expected to be toxic and harmful, he explains.

More than 40 sea stars had piled on to one visible fragment of explosive material. They were residing on iron containers, detonator compartments and carrying containers just a short distance from its dangerous content. Fish, crustaceans, sea anemones and mussels were all found on the historic weapons. It's similar to a reef ecosystem in terms of the quantity of fauna that was inhabiting the area, states Vedenin.

Unexpected Population Density

An mean of more than forty thousand organisms were residing on every meter squared of the weapons, researchers documented in their study on the observation. The nearby seabed was much poorer in life, with only eight thousand creatures on every meter squared.

It is surprising that things that are designed to eliminate all life are attracting so much marine organisms, explains Vedenin. It's evident how the natural world adapts after a devastating occurrence such as the World War II and how, in some way, life finds its way to the most hazardous areas.

Artificial Features as Ocean Habitats

Artificial features such as sunken vessels, offshore windfarms, drilling platforms and undersea pipes can provide replacements, replacing some of the removed marine environment. This research shows that munitions could be similarly positive – the proliferation of marine organisms on those in the Bay of Lübeck is probable to be found in different areas.

Between the late 1940s and 1948, 1.6 million tons of munitions were dumped off the German shoreline. Thousands of people placed them in barges; a portion were dropped in allocated sites, others just dumped en route. This is the first time experts have documented how marine life has adapted.

Global Instances of Ocean Transformation

  • In the US, retired drilling platforms have turned into reef ecosystems
  • Shipwrecks from the first world war have become homes for marine life along the Potomac River in the state of Maryland
  • Military vehicle parts that have become environment to reef-building organisms off Asan in Guam

These areas become even more crucial for wildlife as the marine environments are increasingly depleted by fishing, bottom trawling and anchoring. Sunken ships and munitions areas practically function as protected areas – they are not official reserves, but almost any kind of anthropogenic disturbance is restricted, states Vedenin. Therefore a numerous of organisms that are typically uncommon or decreasing, such as the cod fish, are prospering.

Coming Issues

Wherever armed conflict has taken place in the recent history, surrounding seas are often littered with munitions, says Vedenin. Millions of tonnes of dangerous substances rest in our seas.

The sites of these explosives are inadequately recorded, partially because of sovereign limits, restricted military information and the situation that records are buried in historic archives. They present an explosion and security danger, as well as risk from the persistent release of toxic chemicals.

As Germany and other countries embark on clearing these remains, researchers hope to protect the ecosystems that have established around them. In the Lübeck Bay weapons are already being extracted.

We should substitute these metal carcasses remaining from munitions with certain safer, various harmless structures, like perhaps concrete structures, states Vedenin.

He now wishes that what happens in Lübeck creates a example for substituting material after weapon clearance elsewhere – because also the most damaging explosives can become foundation for new life.

Veronica Harvey
Veronica Harvey

A seasoned casino analyst with over a decade of experience in slot machine mechanics and online gaming strategies.

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