World War II Munitions, Torpedo Heads and Mines: The Way Marine Life Flourishes on Dumped Armaments

In the brackish waters off the German coast sits a wasteland of Nazi bombs, torpedoes and mines. Thrown off barges at the end of the World War II and neglected, numerous explosives have become matted together over the decades. They form a rusting carpet on the shallow, silty ocean floor of the Lübeck Bay in the western part of the Baltic Sea.

Over the decades, the explosive stockpile was ignored and forgotten about. A growing number of tourists traveled to the coastal areas and calm waters for jetskiing, kite surfing and entertainment venues. Underwater, the munitions deteriorated.

Some of us anticipated to see a desert, with no organisms because it was all poisoned, states a scientist.

When the team went investigating to see what they were doing to the marine environment, some of us thought they would find a barren area, with no life because it was all contaminated, explains the lead researcher.

What they found amazed them. Vedenin recounts his scientists exclaiming in amazement when the ROV first relayed pictures. This was a memorable occasion, he notes.

Thousands of ocean life had settled among the weapons, developing a revitalized habitat denser than the seabed around it.

This underwater metropolis was evidence to the tenacity of life. Indeed remarkable how much marine organisms we discover in locations that are expected to be hazardous and harmful, he explains.

More than 40 sea stars had clustered on to one visible piece of TNT. They were living on iron containers, detonator compartments and carrying containers just a short distance from its explosive filling. Marine fish, crabs, sea anemones and bivalves were all observed on the historic weapons. It resembles a reef ecosystem in terms of the abundance of creatures that was there, states Vedenin.

Unexpected Population Density

An average of more than 40,000 organisms were residing on every meter squared of the munitions, researchers reported in their study on the observation. The nearby seabed was much sparser, with only 8,000 individuals on every square metre.

It is paradoxical that items that are designed to destroy everything are hosting so much life, states Vedenin. It's evident how nature adjusts after a catastrophic event such as the World War II and how, in certain respects, life finds its way to the most hazardous areas.

Man-made Structures as Ocean Environments

Man-made constructions such as sunken vessels, offshore windfarms, drilling platforms and undersea pipes can offer replacements, restoring some of the removed habitat. This investigation reveals that explosives could be similarly positive – the explosion of marine organisms on those in the Bay of Lübeck is likely to be duplicated in other locations.

Between 1946 and the post-war period, 1.6m tonnes of weapons were discarded off the Germany's shoreline. Thousands of people loaded them in vessels; a portion were deposited in allocated sites, others just dumped during transport. This is the initial instance experts have recorded how marine life has responded.

Worldwide Instances of Marine Adaptation

  • In the United States, retired energy installations have become coral reefs
  • Sunken ships from the World War I have become habitats for creatures along the Potomac River in 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 seas are increasingly depleted by commercial fishing, seafloor dredging and anchoring. Shipwrecks and explosive disposal locations essentially serve as sanctuaries – they are not national parks, but nearly any kind of anthropogenic disturbance is prohibited, states Vedenin. Consequently a lot of marine species that are usually uncommon or diminishing, such as the cod fish, are thriving.

Coming Issues

Anywhere military conflict has taken place in the past 100 years, nearby oceans are usually strewn with explosives, states Vedenin. Many millions of tons of dangerous substances remain in our seas.

The positions of these explosives are poorly recorded, partly because of national borders, classified armed forces records and the situation that archives are stored in historical records. They pose an detonation and safety hazard, as well as threat from the persistent leakage of poisonous compounds.

As Germany and different states embark on clearing these artifacts, experts hope to safeguard the habitats that have established around them. In the Lübeck Bay munitions are already being extracted.

Researchers recommend substitute these metal carcasses left from weapons with certain safer, various harmless objects, like perhaps artificial reefs, says Vedenin.

He now wishes that what happens in Lübeck creates a model for replacing structures after munitions removal elsewhere – because including the most destructive weaponry can become foundation for ocean ecosystems.

Katherine Hurst
Katherine Hurst

A professional blackjack strategist with over a decade of experience in casino gaming and player education.