Nazi Munitions, Torpedoes and Naval Mines: The Way Ocean Creatures Prosper on Abandoned Armaments
In the slightly salty waters off the Germany's shoreline lies a collection of Nazi bombs, torpedo heads and naval mines. Thrown off vessels at the end of the World War II and left behind, numerous weapons have fused into clusters over the decades. They form a rusting layer on the low-depth, muddy ocean floor of the Lübeck Bay in the western tip of the Baltic.
Over the years, the wartime weapons was ignored and neglected. A growing number of visitors came to the sandy beaches and calm waters for jetskiing, kite surfing and amusement parks. Below the waves, the munitions eroded.
Some of us thought to see a desert, with no life because it was all poisoned, states Andrey Vedenin.
When the team went searching to see what they were affecting to the ecosystem, researchers anticipated finding a desert, with no life because it was all contaminated, states Andrey Vedenin.
What they discovered astonished them. Vedenin recalls his team members shouting with surprise when the ROV first transmitted footage. It was a remarkable experience, he notes.
Numerous of marine animals had made their homes on the weapons, creating a revitalized habitat denser than the sea floor around it.
This marine city was testament to the tenacity of marine life. Truly remarkable how much marine organisms we find in places that are supposed to be toxic and harmful, he explains.
In excess of 40 sea stars had clustered on to one accessible chunk of TNT. They were dwelling on iron containers, fuse pockets and carrying containers just centimetres from its volatile core. Marine fish, crustaceans, anemones and mussels were all found on the historic weapons. You could compare it with a coral reef in terms of the abundance of fauna that was present, notes Vedenin.
Remarkable Population Density
An average of more than 40,000 animals were residing on every square metre of the weapons, experts reported in their research on the discovery. The surrounding area was much less diverse, with only 8,000 organisms on every meter squared.
It is ironic that objects that are intended to eliminate all life are attracting so much life, explains Vedenin. You can see how nature evolves after a catastrophic event such as the World War II and how, in some way, life establishes itself to the most risky areas.
Man-made Features as Marine Environments
Artificial constructions such as sunken vessels, wind turbines, drilling platforms and pipelines can create substitutes, replacing some of the destroyed habitat. This investigation shows that weapons could be equally advantageous – the bloom of marine organisms on those in the Lübeck Bay is likely to be found in different areas.
Between the late 1940s and 1948, 1.6 million tonnes of munitions were dumped off the German coast. Countless of people transported them in boats; some were dropped in allocated locations, the remainder just dumped en route. This is the initial instance researchers have documented how marine life has reacted.
Global Examples of Marine Transformation
- In the US, retired energy installations have turned into coral reefs
- Shipwrecks from the first world war have become habitats 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 the Pacific island
These areas become even more valuable for organisms as the marine environments are increasingly depleted by fishing, bottom trawling and anchoring. Shipwrecks and explosive disposal locations practically act as protected areas – they are not national parks, but nearly any kind of anthropogenic disturbance is restricted, states Vedenin. As a result a many of organisms that are usually uncommon or declining, such as the cod fish, are flourishing.
Future Factors
Wherever armed conflict has occurred in the last century, adjacent waters are typically containing weapons, explains Vedenin. Many millions of tons of volatile compounds remain in our marine environments.
The sites of these weapons are poorly recorded, partially because of national borders, classified armed forces records and the reality that records are hidden in historical records. They pose an detonation and safety risk, as well as risk from the continuous emission of toxic chemicals.
As the German government and different states begin extracting these remains, researchers plan to safeguard the ecosystems that have developed nearby. In the Bay of Lübeck munitions are already being extracted.
It would be wise to substitute these metal carcasses originating from munitions with certain safer, some harmless structures, like perhaps concrete structures, suggests Vedenin.
He now aspires that what occurs in the Bay of Lübeck creates a precedent for replacing material after weapon clearance elsewhere – because also the most harmful weaponry can become foundation for marine organisms.