80 years later: Marine sediments still influenced by an old war ship

نویسندگان

چکیده

Historic shipwrecks form an anthropogenic landmark in marine environment, yet their influence on the local geochemistry and microbiology remains largely unexplored. In this study, sediment steel hull samples were taken around V-1302 John Mahn , a World War II shipwreck, at increasing distance from wreck, different directions. Polycyclic aromatic hydrocarbons (PAH’s), explosives, heavy metal levels determined related to microbial composition. Benz(a)anthracene fluoranthene remain present mg kg -1 level, probably originating coal bunker. These PAH’s indicate that wreck is still influencing surrounding sediments however effects are very dependent which side of being studied. Known PAH degrading taxa like Rhodobacteraceae Chromatiaceae more abundant with high pollutant content. Moreover, sulphate reducing bacteria (such as Desulfobulbia ), proven be involved corrosion, found biofilm. This study shows even after 80 years, historic shipwreck can significantly steer chemistry ecology.

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ژورنال

عنوان ژورنال: Frontiers in Marine Science

سال: 2022

ISSN: ['2296-7745']

DOI: https://doi.org/10.3389/fmars.2022.1017136