Intertidal rocky shore seaweed communities subject to the influence of shallow water hydrothermal activity in  São Miguel (Azores, Portugal)

Francisco M Wallenstein, Ruben P Couto, Daniel F Torrão, Ana I Neto, Armindo S Rodrigues, Martin Wilkinson

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    3 Citations (Scopus)

    Abstract

    The volcanic origin of the Azores archipelago (Portugal) gives rise to active deep sea and shallow water hydrothermal activity that affects benthic communities. Intertidal seaweed surveys were conducted at two shores affected by intense shallow water hydrothermal vents. Water temperature, acidity and salinity were monitored. Seaweed communities were found to be species poor and have a disproportionally larger number of filamentous early successional species on shores that are subject to the effect of hot and acidic freshwater of volcanic origin. There is an ecological resemblance between hydrothermally affected seaweed communities in the Azores and those affected by acid mine drainage in the UK, thus indicating that hydrothermalism can be a useful scenario for pollution studies under conditions of ocean warming and acidification.

    Original languageEnglish
    Pages (from-to)535-543
    Number of pages9
    JournalHelgoland Marine Research
    Volume67
    Issue number3
    DOIs
    Publication statusPublished - 1 Sep 2013

    Keywords

    • Intertidal
    • Macroalgae
    • Hydrothermal activity
    • Pollution
    • OCEAN ACIDIFICATION
    • CORALLINE ALGAE
    • MARINE-ALGAE
    • VENTS
    • SEA
    • TEMPERATURE
    • ORGANISMS

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