Nazi Munitions, Torpedoes and Naval Mines: The Way Marine Life Flourishes on Dumped Armaments

In the slightly salty waters off the Germany's shoreline lies a collection of Nazi bombs, torpedoes and mines. Dumped from boats at the conclusion of the World War II and forgotten about, numerous weapons have accumulated over the years. They comprise a decaying carpet on the low-depth, silty seafloor of the Lübeck Bay in the western part of the Baltic Sea.

Over the years, the Nazi arsenal was ignored and neglected. A growing number of visitors traveled to the coastal areas and calm waters for water sports, kite surfing and entertainment venues. Underwater, the weapons eroded.

Some of us anticipated to see a desert, with nothing living there because it was all poisoned, says Andrey Vedenin.

When the team went searching to see what they were doing to the marine environment, researchers anticipated finding a barren area, with no life because it was all poisoned, says Andrey Vedenin.

What they found astonished them. Vedenin recalls his scientists reacting with shock when the ROV first transmitted footage. This was a memorable occasion, he recalls.

Countless of ocean life had established habitats among the explosives, creating a revitalized habitat denser than the ocean bottom nearby.

This underwater metropolis was evidence to the persistence of marine life. It is actually astonishing how much life we find in places that are considered dangerous and risky, he states.

In excess of 40 starfish had gathered on to one accessible piece of TNT. They were living on iron containers, detonator compartments and carrying containers just a short distance from its volatile core. Fish, crustaceans, sea anemones and mussels were all found on the old munitions. It's similar to a coral reef in terms of the quantity of animal life that was there, says Vedenin.

Remarkable Population Density

An average of more than forty thousand animals were dwelling on every meter squared of the weapons, scientists documented in their paper on the observation. The surrounding area was much less diverse, with only eight thousand individuals on every square metre.

It is surprising that objects that are designed to eliminate everything are attracting so much marine organisms, states Vedenin. It's evident how the natural world evolves after a catastrophic event such as the World War II and how, in certain respects, life finds its way to the most risky places.

Artificial Features as Ocean Habitats

Artificial structures such as sunken vessels, wind turbines, drilling platforms and undersea pipes can provide alternatives, compensating for some of the lost habitat. This investigation demonstrates that explosives could be similarly positive – the bloom of life on those in the Bay of Lübeck is likely to be found in other locations.

Between 1946 and 1948, 1.6 million tonnes of munitions were disposed of off the Germany's shoreline. Numerous of individuals transported them in barges; a portion were placed in allocated sites, the remainder just thrown overboard during transport. This is the initial instance researchers have studied how marine life has reacted.

Worldwide Instances of Marine Adaptation

• In the United States, retired drilling platforms have turned into marine habitats
• Shipwrecks from the World War I have become environments for marine life along the Potomac River in the state of Maryland
• Tank tracks that have become environment to reef-building organisms off Asan in the Pacific island

These places become even more important for wildlife as the oceans are increasingly depleted by fishing, bottom trawling and boat mooring. Sunken ships and weapons dump sites essentially act as protected areas – they are not national parks, but almost any kind of anthropogenic disturbance is restricted, states Vedenin. Therefore a many of organisms that are typically uncommon or decreasing, such as the Baltic cod, are prospering.

Coming Factors

Anywhere warfare has happened in the recent history, adjacent waters are usually containing munitions, explains Vedenin. Many millions of tons of explosive material remain in our marine environments.

The locations of these weapons are insufficiently documented, in part because of national borders, secret armed forces records and the situation that archives are hidden in old files. They pose an explosion and safety danger, as well as risk from the ongoing emission of toxic chemicals.

As the German government and additional nations start extracting these remains, experts aim to safeguard the marine communities that have established in their vicinity. In the Bay of Lübeck munitions are presently being cleared.

Researchers recommend substitute these iron structures originating from munitions with some more secure, some non-dangerous objects, like perhaps concrete structures, says Vedenin.

He now aspires that what occurs in the Bay of Lübeck creates a precedent for replacing material after explosive extraction in different areas – because including the most damaging armaments can become foundation for new life.