Nazi Munitions, Torpedoes and Mines: The Way Ocean Creatures Prosper on Discarded Armaments

In the brackish waters off the German coast rests a wasteland of World War II explosives, torpedoes and mines. Thrown off barges at the conclusion of the World War II and left behind, countless weapons have fused into clusters over the decades. They create a corroding layer on the low-depth, silty seafloor of the Bay of Lübeck in the western tip of the Baltic Sea.

Over the years, the wartime weapons was ignored and forgotten about. A growing number of tourists came to the sandy beaches and calm waters for water sports, kiteboarding and entertainment venues. Underwater, the munitions decayed.

Researchers thought to see a desert, with no life because it was all poisoned, says a scientist.

When the initial researchers went looking to see what they were affecting to the marine environment, the team thought they would find a desert, with nothing living there because it was all poisoned, says the lead researcher.

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

Countless of ocean life had made their homes amid the explosives, developing a renewed ecosystem richer than the sea floor surrounding it.

This underwater metropolis was evidence to the persistence of life. It is actually surprising how much life we discover in areas that are supposed to be toxic and risky, he states.

Over 40 sea stars had clustered on to one accessible fragment of explosive material. They were residing on metal shells, fuse pockets and storage boxes just centimetres from its dangerous content. Fish, crabs, anemones and mussels were all found on the historic weapons. It's similar to a marine reef in terms of the abundance of creatures that was inhabiting the area, says Vedenin.

Unexpected Creature Concentration

An average of more than 40,000 animals were living on every square metre of the munitions, scientists reported in their research on the observation. The adjacent region was much poorer in life, with only eight thousand individuals on every square metre.

It is surprising that objects that are intended to eliminate all life are attracting so much marine organisms, states Vedenin. It's evident how nature evolves after a devastating occurrence such as the second world war and how, in some way, marine life establishes itself to the most risky places.

Man-made Features as Ocean Habitats

Artificial features such as sunken vessels, offshore windfarms, drilling platforms and pipelines can offer substitutes, compensating for some of the destroyed marine environment. This study demonstrates that explosives could be comparably beneficial – the bloom of life on those in the Lübeck Bay is likely to be found elsewhere.

Between the late 1940s and 1948, 1.6 million tonnes of weapons were disposed of off the German coast. Thousands of individuals transported them in barges; a portion were placed in allocated areas, others just dumped while traveling. This is the first time scientists have recorded how ocean organisms has responded.

Worldwide Examples of Marine Adaptation

• In the US, decommissioned drilling platforms have become coral reefs
• Shipwrecks from the World War I have become homes for wildlife along the Potomac in the state of Maryland
• Military vehicle parts that have become home to reef-building organisms off Asan beach in Guam

These places become even more crucial for organisms as the marine environments are increasingly stripped by fishing, bottom trawling and anchoring. Sunken ships and explosive disposal locations practically serve as protected areas – they are not official reserves, but virtually any kind of human activity is restricted, states Vedenin. Therefore a many of marine species that are typically uncommon or diminishing, such as the Baltic cod, are thriving.

Future Issues

Wherever warfare has happened in the past 100 years, adjacent waters are usually littered with munitions, explains Vedenin. Millions of tonnes of volatile compounds lie in our oceans.

The positions of these explosives are poorly documented, partially because of international boundaries, restricted armed forces records and the situation that documents are stored in historic archives. They present an explosion and security risk, as well as danger from the continuous leakage of toxic chemicals.

As Germany and different states start clearing these artifacts, researchers plan to preserve the habitats that have developed nearby. In the Lübeck Bay explosives are presently being extracted.

We should substitute these metal carcasses left from weapons with certain safer, various non-dangerous materials, like possibly concrete structures, states Vedenin.

He presently wishes that what occurs in Lübeck establishes a example for substituting structures after weapon clearance elsewhere – because even the most damaging weaponry can become framework for marine organisms.