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Structural factors driving benthic invertebrate community structure on historical shipwrecks in a large North Atlantic marine sanctuary
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2022
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Source: Marine Pollution Bulletin, 178, 113622
[PDF-1.17 MB]
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Journal Title:Marine Pollution Bulletin
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Description:Shipwrecks are irreplaceable historical resources and valuable biological habitats. Understanding the environmental and anthropogenic factors affecting shipwrecks is critical for preservation in situ. We used remotely operated vehicles to study the benthic invertebrate communities on four shipwrecks in Stellwagen Bank National Marine Sanctuary (SBNMS, North Atlantic, USA). Shipwrecks included coal schooners and a passenger steamer, all >100 years old. These large, complex structures hosted dense populations of invertebrates (34 species), especially on high-relief and overhanging substrata. Some species that are otherwise rare in the community may proliferate through asexual reproduction and form dense populations on shipwrecks. We also investigated impacts of entangled fishing gear on the invertebrate communities on each shipwreck and found that areas with the most ghost gear have lower species richness and different community structure. Fishing, particularly bottom trawling, damages shipwrecks and poses a threat to these valuable cultural resources and biological habitats in SBNMS.
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Source:Marine Pollution Bulletin, 178, 113622
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ISSN:0025-326X
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Rights Information:CC BY-NC-ND
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Compliance:Library
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