Advertisement

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
Chapter

Abstract

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.

Keywords

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

Notes

Acknowledgments

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.

Bibliography

  1. Canals, M., Ballesteros, E. (1997). Production of carbonate particles by phytobenthic communities on the Mallorca-Menorca shelf, northwestern Mediterranean Sea. Deep Sea Res. Part II Top. Stud. Oceanogr. 44, 611–629. doi: 10.1016/S0967-0645(96)00095-1.
  2. Dredge report. Dragado del Puerto de Maó: Memoria [WWW Document]. (2012). URL http://dragadopuertodemao.blogspot.com.es/p/memoria.html (accessed 7.6.15).
  3. Du Four, I., Van Lancker, V. (2008). Changes of sedimentological patterns and morphological features due to the disposal of dredge spoil and the regeneration after cessation of the disposal activities. Mar. Geol. 255, 15–29. doi: 10.1016/j.margeo.2008.04.011.
  4. Fornós, J. (1987). Les plataformes carbonatades de les Balears, estudi sedimentològic de les plataformes miocenes de les illes Balears i la comparació amb la sedimentació actual de la seva plataforma. PhD Thesis, Universitat de Barcelona.Google Scholar
  5. Fornos, J., Ahr, W. (1997). Temperate carbonates on a modern, low-energy, isolated ramp: the Balearic Platform, Spain. J. Sediment. Res. 67.Google Scholar
  6. IEO Fleet [WWW Document]. (2015). URL http://www.ieo.es/web/ieo/flota (accessed 7.6.15).
  7. Massutí, E., Santaella-Álvarez, E., López-Jurado, J.L., Balbín, R., Aparicio-González, A., Sánchez-Leal, R.F., Deudero, S., Álvarez, E., Cerdá, M., Ordines, F., Rivera, J., Abelló, P., Farriols, M.T., Orejas, C., Ramón-Herrero, M., Jhoer, S., Tovar, A., Massanet, A., Sánchez-Quiles, D., Campillo-González, J.A., León-León, V.M., Besada, V., Martínez-Gómez, C., García-Aparicio, V., Valdés-García, N.J., Navarro-Marín, C., Martínez-Franco, F., Ceruso-Juez, C.E., García-Agüera, I.M.E., Schultze, F., Reñones, O., Iglesias-Cubells, M.C. (2014). Revisión y Control del Plan de Vigilancia Ambiental de las obras de dragado del Puerto de Maó.Google Scholar
  8. Palanques, A., Guillén, J., Puig, P. (2001). Impact of bottom trawling on water turbidity and muddy sediment of an unfished continental shelf. Limnol. Oceanogr. 46, 1100–1110. doi: 10.4319/lo.2001.46.5.1100.
  9. Palanques, A., Martín, J., Puig, P., Guillén, J., Company, J.B., Sardà, F. (2006). Evidence of sediment gravity flows induced by trawling in the Palamós (Fonera) submarine canyon (northwestern Mediterranean). Deep Sea Res. Part Oceanogr. Res. Pap. 53, 201–214. doi: 10.1016/j.dsr.2005.10.003.
  10. Puig, P., Canals, M., Company, J.B., Martín, J., Amblas, D., Lastras, G., Palanques, A., Calafat, A.M. (2012). Ploughing the deep sea floor. Nature 489, 286–289. doi: 10.1038/nature11410.
  11. Rivera, J. (2015). Informe de campaña y resultados MAO1407_GEOBentos. http://hdl.handle.net/10508/9045.
  12. Zúñiga, D., Calafat, A., Sanchez-Vidal, A., Canals, M., Price, B., Heussner, S., Miserocchi, S. (2007). Particulate organic carbon budget in the open Algero-Balearic Basin (Western Mediterranean): Assessment from a one-year sediment trap experiment. Deep Sea Res. Part Oceanogr. Res. Pap. 54, 1530–1548. doi: 10.1016/j.dsr.2007.06.001.

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

Personalised recommendations