Damaging Doggerland?: The impact of offshore industrial activities on the submerged prehistoric landscapes of the Dutch North Sea.

Today, large amounts of Pleistocene fossils and prehistoric artefacts are encountered in the nets of bottom trawling fishing vessels and found on beaches along the Dutch coast. Interestingly, these finds do not derive from the current mainland but originate from a prehistoric land currently submerged beneath the North Sea. This land, known to us as ‘Doggerland’, extended across major parts of the North Sea during times when the sea level was more than 50 meters lower than today. The area consisted of diverse landscapes that ranged from tundra plains, during the glacial periods, to forested areas and coastal swamps, during warmer interglacial periods. These prehistoric landscapes were home to a large number of animal and plant species, and consequentially offered attractive environments for prehistoric hunter-gatherer groups. The fact that remains from Doggerland are encountered today demonstrates that at least parts of these prehistoric landscapes have been preserved beneath the...Show moreToday, large amounts of Pleistocene fossils and prehistoric artefacts are encountered in the nets of bottom trawling fishing vessels and found on beaches along the Dutch coast. Interestingly, these finds do not derive from the current mainland but originate from a prehistoric land currently submerged beneath the North Sea. This land, known to us as ‘Doggerland’, extended across major parts of the North Sea during times when the sea level was more than 50 meters lower than today. The area consisted of diverse landscapes that ranged from tundra plains, during the glacial periods, to forested areas and coastal swamps, during warmer interglacial periods. These prehistoric landscapes were home to a large number of animal and plant species, and consequentially offered attractive environments for prehistoric hunter-gatherer groups. The fact that remains from Doggerland are encountered today demonstrates that at least parts of these prehistoric landscapes have been preserved beneath the seabed. However, at the same time, the finds indicate that the submerged prehistoric remains are being disturbed and displaced from their original or derived context. The disturbance can be attributed to offshore industrial activities, such as the fishing industry and sand extraction activities. Through their exploitation of the seabed, a large amount of fossil bones and artefacts resurface in the fishing nets and on sand suppleted beaches along the Dutch coast. Besides that, considering that certain offshore industrial activities will expand in response to the renewable energy transition and the ever-rising sea level, major parts of Doggerland are likely to be lost in the future. On the other hand, the nature and extent of the offshore industrial disturbances in relation to the submerged prehistoric remains are far from certain. This applies to today and the future especially. The following thesis, therefore, investigates the impacts of trawling activities, sand extraction and offshore wind generation on the seabed sediments, taking into account the depositional context, taphonomic processes as well as the current hydrodynamic conditions that have altered these deposits already.Show less

Leiden University Student Repository

Documents

In Collections

Damaging Doggerland? The impact of offshore industrial activities on the submerged prehistoric landscapes of the Dutch North Sea.