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June 6, 2026Marine and Freshwater Research

The legacy of two World War II shipwrecks and their influence on marine microbial communities of coastal sediment and geochemistry in the North Sea

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Authors

KFKarel FolensJLJosefien Van LanduytFWFien Waegenaar

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Overview

Randomized trial investigates geochemical changes and microbial diversity due to WWII shipwrecks, indicating ecological impacts.

Key Points

  • This research aims to assess how two WWII shipwrecks influence microbial communities and geochemistry in coastal sediments of the North Sea.
  • Conducted elemental analysis using microwave-assisted HF destruction and ICP-OES.
  • Characterized microbial populations through flow-cytometry, ATP assay, and 16S rRNA amplicon sequencing.
  • Measured concentrations of iron, sulfur, aluminium, and zinc in sediment samples.
  • Shipwrecks lead to increased sulfur and varied iron concentrations (4.6–153 mg kg−1).
  • Bacterial abundance was correlated with aluminium levels, while specific microbial families, including iron and sulfur cyclers, were identified.
  • Alpha diversity of seabed microbes significantly decreased near the wrecks.

Cite This Study

Folens et al. (2026) studied this question.

synapsesocial.com/papers/6a23b9ca71a5da9775e758f6https://doi.org/10.1071/mf25096
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