Trawl Marks and Dredge Spoils as Examples of Seabed Anthropic Alteration on Sediments (Menorca Shelf)

  • J. RiveraEmail author
  • G. Mateu
  • N. Hermida
  • L. Pomar
  • J. Acosta


Trawl marks and dredge spoils are two different types of anthropic seabed alterations. Both of them are footprints of the human activity on the seabed and both of them are traceable on the swath bathymetry records from certain types of seabed. High frequency multibeam echosounders allow detecting and quantifying the extent of these features so identifying their acoustic signature is a valuable issue in the field of impact assessment and environmental management. In addition, patterning and distinguishing them is something that geomorphologists need to bear in mind when interpreting geophysical records in a human influenced area in order to avoid misinterpretation of the real natural features.


Anthropic seabed morphologies Bedforms Trawl fishing Trawl marks Dredge Spoils Impact assessment Environmental management 



Data sets shown and discussed throughout text and figures were obtained in two surveys conducted by the Instituto Español de Oceanografía (IEO), on board R/V F. de Paula Navarro(“IEO Fleet,” 2015); We thank the crew for their help and comradeship during both surveys. Special thanks to the Port Authority of Balearic Islands for their permission to use this material.


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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  • J. Rivera
    • 1
    Email author
  • G. Mateu
    • 2
  • N. Hermida
    • 1
  • L. Pomar
    • 2
  • J. Acosta
    • 1
  1. 1.Instituto Español de OceanografiaIEOMadridSpain
  2. 2.Càtedra “Guillem Colom Casasnovas”Edifici Guillem Colom Casasnovas - Universitat de les Illes BalearsPalma de MallorcaSpain

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