Nazi Bombs, Torpedoes and Naval Mines: How Ocean Creatures Thrives on Discarded Weapons

In the slightly salty waters off the German coast sits a collection of World War II explosives, torpedo heads and mines. Discarded from barges at the conclusion of the World War II and forgotten about, thousands weapons have accumulated over the decades. They form a rusting blanket on the shallow, muddy seafloor of the Bay of Lübeck in the western tip of the Baltic Sea.

Over the years, the wartime weapons was ignored and neglected. A increasing amount of tourists came to the sandy beaches and tranquil sea for jetskiing, kiteboarding and amusement parks. Below the waves, the weapons eroded.

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

When the initial researchers went searching to see what they were doing to the marine environment, some of us thought they would find a lifeless zone, with no organisms because it was all toxic, says the lead researcher.

What they observed astonished them. Vedenin recalls his scientists exclaiming in amazement when the submersible first sent the images back. It was a remarkable experience, he recalls.

Numerous of sea creatures had made their homes amid the explosives, developing a regenerated ecosystem denser than the ocean bottom nearby.

This ocean community was testament to the persistence of marine life. Indeed remarkable how much marine organisms we find in locations that are supposed to be hazardous and dangerous, he states.

More than 40 starfish had clustered on to one accessible piece of TNT. They were living on steel casings, detonator compartments and storage boxes just centimetres from its explosive filling. Marine fish, crabs, sea anemones and mussels were all discovered on the old munitions. You could compare it with a reef ecosystem in terms of the quantity of fauna that was there, notes Vedenin.

Surprising Population Density

An mean of more than 40,000 organisms were living on every square metre of the weapons, researchers documented in their study on the finding. The surrounding area was much poorer in life, with only eight thousand creatures on every square metre.

It is paradoxical that items that are intended to kill all life are attracting so much marine organisms, states Vedenin. One can observe how the natural world adapts after a major disaster such as the World War II and how, in certain respects, life establishes itself to the most risky areas.

Artificial Features as Marine Environments

Artificial constructions such as shipwrecks, offshore windfarms, drilling platforms and pipelines can offer replacements, replacing some of the destroyed habitat. This research shows that weapons could be comparably positive – the explosion of life on those in the Lübeck Bay is expected to be duplicated elsewhere.

Between the late 1940s and the post-war period, 1.6m tons of arms were disposed of off the German coast. Numerous of people transported them in barges; a portion were dropped in specific sites, others just thrown overboard while traveling. This is the initial instance experts have studied how marine life has responded.

Global Instances of Ocean Transformation

• In the United States, decommissioned oil and gas structures have become marine habitats
• Shipwrecks from the World War I have become homes for marine life along the Potomac River in Maryland
• Military vehicle parts that have become habitat to reef-building organisms off Asan in Guam

These areas become even more crucial for marine life as the marine environments are increasingly stripped by commercial fishing, seafloor dredging and anchoring. Sunken ships and explosive disposal locations essentially serve as protected areas – they are not national parks, but nearly any kind of human activity is prohibited, says Vedenin. As a result a numerous of organisms that are otherwise uncommon or diminishing, such as the cod fish, are thriving.

Coming Issues

Anywhere military conflict has happened in the recent history, surrounding seas are often littered with weapons, states Vedenin. Many millions of tons of dangerous substances lie in our oceans.

The positions of these weapons are inadequately documented, partly because of national borders, secret defense data and the fact that documents are hidden in historical records. They pose an explosion and security hazard, as well as threat from the ongoing emission of poisonous compounds.

As Germany and different states start extracting these artifacts, researchers aim to safeguard the habitats that have established in their vicinity. In the Bay of Lübeck munitions are already being cleared.

We should replace these metal carcasses remaining from weapons with certain safer, various harmless materials, like maybe concrete structures, states Vedenin.

He presently hopes that what occurs in Lübeck establishes a model for replacing material after munitions removal in other locations – because including the most harmful weaponry can become framework for new life.