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The sedimentary dynamics of Sabellaria alveolata bioconstructions (Ostia, Tyrrhenian Sea, central Italy)

Authors
  • Lisco, Stefania Nunzia1
  • Acquafredda, Pasquale1
  • Gallicchio, Salvatore1
  • Sabato, Luisa1
  • Bonifazi, Andrea2
  • Cardone, Frine1
  • Corriero, Giuseppe1
  • Gravina, Maria Flavia2
  • Pierri, Cataldo1
  • Moretti, Massimo1
  • 1 Università degli Studi di Bari, Bari, 70124, Italy , Bari (Italy)
  • 2 Università di Roma “Tor Vergata”, Rome, 00133, Italy , Rome (Italy)
Type
Published Article
Journal
Journal of Palaeogeography
Publisher
Springer Singapore
Publication Date
Jan 13, 2020
Volume
9
Issue
1
Identifiers
DOI: 10.1186/s42501-019-0050-6
Source
Springer Nature
Keywords
License
Green

Abstract

Sabellaria alveolata (Linnaeus 1767) is a polychaete able to build bioconstructions of different thickness, size and patchiness, in intertidal and subtidal environments. Its biological features have been the object of numerous studies worldwide. The worm reefs are formed by millions of tubes built by sand and shells (whole or in fragments) bonded together with a strong glue produced by the worm itself. Hence, Sabellaria alveolata represents a sedimentological asset for the coastal protection, since it contributes to create natural barriers against storm waves and erosion, and supplies the beach with new sandy deposits. This work shows a multidisciplinary approach to studying a bioconstruction of Sabellaria alveolata along the Latium coast (Ostia, Tyrrhenian Sea, central Italy), proposing image analysis as a novel technique to investigate worm reefs, along with classical sedimentological/ecological tools. The Sabellaria bioconstructions have been analysed at different scales of observation, suggesting the more appropriate strategies to develop a reliable model illustrating the different growth steps of these bioconstructions.

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