Nazi Munitions, Torpedo Heads and Naval Mines: The Way Marine Life Flourishes on Discarded Weapons
In the brackish waters off the Germany's coast sits a wasteland of World War II explosives, torpedoes and mines. Dumped from barges at the conclusion of the World War II and neglected, thousands munitions have accumulated over the decades. They comprise a corroding layer on the low-depth, silty ocean floor of the LĂĽbeck Bay in the western tip of the Baltic Sea.
Over the decades, the explosive stockpile was ignored and neglected. A growing number of tourists came to the coastal areas and calm waters for water sports, kiteboarding and entertainment venues. Beneath the surface, the weapons deteriorated.
We initially anticipated to see a barren area, with no life because it was all poisoned, explains a scientist.
When the team went investigating to see what they were affecting to the ecosystem, researchers thought they would find a barren area, with no organisms because it was all contaminated, states a scientist.
What they discovered astonished them. Vedenin recounts his colleagues shouting with surprise when the underwater vehicle first relayed pictures. It was a remarkable experience, he notes.
Countless of sea creatures had settled on the explosives, developing a revitalized marine community denser than the seabed nearby.
This underwater metropolis was proof to the resilience of marine life. It is actually astonishing how much marine organisms we find in locations that are considered toxic and harmful, he says.
More than 40 sea stars had piled on to one visible piece of explosive material. They were living on iron containers, ignition chambers and carrying containers just a short distance from its volatile core. Marine fish, crabs, anemones and bivalves were all observed on the historic weapons. It's similar to a reef ecosystem in terms of the abundance of creatures that was inhabiting the area, notes Vedenin.
Remarkable Population Density
An mean of more than forty thousand organisms were living on every square metre of the explosives, scientists documented in their research on the discovery. The adjacent region was much sparser, with only eight thousand creatures on every meter squared.
It is surprising that things that are meant to destroy everything are attracting so much marine organisms, explains Vedenin. It's evident how nature evolves after a catastrophic event such as the second world war and how, in certain respects, marine life returns to the most dangerous locations.
Man-made Structures as Marine Habitats
Man-made constructions such as shipwrecks, offshore windfarms, oil rigs and pipelines can create alternatives, restoring some of the lost habitat. This research demonstrates that weapons could be similarly advantageous – the explosion of life on those in the Bay of Lübeck is likely to be found in other locations.
Between the late 1940s and 1948, 1.6m tonnes of arms were dumped off the Germany's shoreline. Countless of individuals loaded them in boats; a portion were placed in specific locations, others just dumped while traveling. This is the first time experts have documented how marine life has responded.
Global Examples of Ocean Transformation
- In the United States, decommissioned energy installations have become marine habitats
- Sunken ships from the first world war have become environments for wildlife along the Potomac in the state of Maryland
- Tank tracks that have become habitat to coral off Asan beach in the Pacific island
These locations become even more valuable for wildlife as the oceans are increasingly depleted by fishing, seafloor dredging and boat mooring. Shipwrecks and explosive disposal locations effectively serve as protected areas – they are not national parks, but almost any kind of human activity is restricted, states Vedenin. As a result a lot of organisms that are otherwise rare or declining, such as the cod fish, are prospering.
Future Issues
Wherever military conflict has happened in the past 100 years, surrounding seas are usually containing munitions, says Vedenin. Many millions of tonnes of dangerous substances rest in our oceans.
The locations of these explosives are insufficiently documented, partially because of international boundaries, classified armed forces records and the fact that records are hidden in historic archives. They create an detonation and safety risk, as well as risk from the ongoing release of hazardous substances.
As the German government and additional nations start clearing these remains, experts hope to preserve the ecosystems that have developed around them. In the LĂĽbeck Bay munitions are presently being extracted.
We should substitute these steel remains remaining from weapons with some less dangerous, various safe materials, like maybe artificial reefs, suggests Vedenin.
He currently hopes that what occurs in Lübeck establishes a precedent for replacing habitats after weapon clearance in other locations – because also the most destructive weaponry can become foundation for new life.
