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Sabellaria nanella (Sabellariidae): from solitary subtidal to intertidal reef-building worm at Monte Hermoso, Argentina (39°S, south-west Atlantic)

Claudia Bremec,Cecilia Carcedo,Cintia Piccolo,E. D. Santos,S. Fiori

Published 2012 in Journal of the Marine Biological Association of the United Kingdom

ABSTRACT

This contribution reports the first record of intertidal reefs built by the sabellariid worm Sabellaria nanella in the lower intertidal at Monte Hermoso beach, Argentina (39°S). All previous records of S. nanella in the study area correspond to solitary individuals from shallow subtidal depths in coastal environments, while the present findings refer to well established reefs on stony rocks. Worms sort medium size sand grains to build the reefs, which contain higher amount of organic matter than the surrounding sediments. Size structure of worms shows multiple size cohorts that include recent recruits and mature adults. Many invertebrates, i.e. various annelids, arthropods, molluscs, nemerteans and nematodes, are the frequent organisms living within the reef, some of them already recorded in the area. The presence of intertidal reefs of S. nanella indicates that the species has plasticity to adapt to environments with different physical conditions (subtidal–intertidal areas).

PUBLICATION RECORD

  • Publication year

    2012

  • Venue

    Journal of the Marine Biological Association of the United Kingdom

  • Publication date

    2012-09-04

  • Fields of study

    Biology, Geography, Environmental Science

  • Identifiers
    DOI 10.1017/S0025315412000550
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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