Nazi Munitions, Torpedoes and Mines: The Way Marine Life Thrives on Discarded Weapons

In the slightly salty waters off the German shoreline rests a graveyard of World War II explosives, torpedo heads and mines. Discarded from boats at the end of the World War II and neglected, thousands munitions have accumulated over the decades. They comprise a decaying layer on the low-depth, muddy ocean floor of the Bay of Lübeck in the western part of the Baltic.

Over the decades, the explosive stockpile was ignored and neglected. A increasing amount of tourists traveled to the sandy beaches and calm waters for jetskiing, kiteboarding and amusement parks. Below the waves, the weapons decayed.

Some of us thought to see a desert, with nothing living there because it was all toxic, states the lead researcher.

When the team went looking to see what they were affecting to the ecosystem, some of us thought they would find a lifeless zone, with no life because it was all toxic, states Andrey Vedenin.

What they found surprised them. Vedenin remembers his team members exclaiming in amazement when the ROV first transmitted footage. This was a memorable occasion, he notes.

Numerous of ocean life had established habitats amid the weapons, creating a revitalized ecosystem richer than the seabed around it.

This marine city was evidence to the persistence of life. It is actually remarkable how much marine organisms we discover in places that are supposed to be dangerous and harmful, he says.

More than 40 starfish had piled on to one exposed chunk of TNT. They were residing on iron containers, ignition chambers and transport cases just a short distance from its explosive filling. Fish, crabs, sea anemones and mussels were all observed on the old munitions. It's similar to a reef ecosystem in terms of the quantity of creatures that was present, states Vedenin.

Unexpected Creature Concentration

An mean of more than forty thousand organisms were living on every meter squared of the explosives, scientists reported in their paper on the discovery. The surrounding area was much poorer in life, with only eight thousand organisms on every square metre.

It is ironic that objects that are intended to eliminate everything are drawing so much marine organisms, explains Vedenin. It's evident how nature adjusts after a devastating occurrence such as the World War II and how, in some way, marine life returns to the most dangerous areas.

Man-made Features as Marine Environments

Artificial structures such as sunken vessels, wind turbines, oil rigs and pipelines can create alternatives, replacing some of the lost habitat. This investigation shows that munitions could be equally advantageous – the proliferation of life on those in the Lübeck Bay is likely to be found elsewhere.

Between the late 1940s and the post-war period, 1.6 million tonnes of weapons were discarded off the Germany's coast. Countless of workers loaded them in vessels; a portion were dropped in designated areas, the remainder just discarded at sea while traveling. This is the initial instance researchers have recorded how ocean organisms has reacted.

Global Instances of Marine Adaptation

• In the United States, decommissioned drilling platforms have become marine habitats
• Submerged vessels from the first world war have become homes for wildlife along the Potomac River in the state of Maryland
• Military vehicle parts that have become habitat to reef-building organisms off Asan beach in Guam

These places become even more valuable for marine life as the oceans are increasingly stripped by commercial fishing, seafloor dredging and anchoring. Shipwrecks and explosive disposal locations essentially function as refuges – they are not official reserves, but almost any kind of anthropogenic disturbance is restricted, states Vedenin. Therefore a numerous of species that are typically scarce or diminishing, such as the cod fish, are prospering.

Coming Factors

Anywhere warfare has happened in the last century, surrounding seas are typically containing explosives, explains Vedenin. Many millions of tonnes of dangerous substances lie in our seas.

The positions of these explosives are insufficiently documented, partially because of national borders, restricted military information and the situation that records are hidden in historic archives. They pose an explosion and security hazard, as well as danger from the ongoing leakage of hazardous substances.

As Germany and different states start removing these relics, experts hope to safeguard the marine communities that have formed in their vicinity. In the Lübeck Bay munitions are already being cleared.

Researchers recommend replace these iron structures originating from weapons with some more secure, various non-dangerous structures, like perhaps artificial reefs, suggests Vedenin.

He now wishes that what transpires in Lübeck creates a precedent for replacing material after explosive extraction in different areas – because also the most harmful weaponry can become framework for new life.