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Microphytobenthic community composition and primary production at gas and thermal vents in the Aeolian Islands (Tyrrhenian Sea, Italy)
Rogelja, M.; Cibic, T.; Pennesi, C.; De Vittor, C. (2016). Microphytobenthic community composition and primary production at gas and thermal vents in the Aeolian Islands (Tyrrhenian Sea, Italy). Mar. Environ. Res. 118: 31-44. https://hdl.handle.net/10.1016/j.marenvres.2016.04.009
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Benthic diatoms Primary production Biodiversity Temperature Microphytobenthos Gas emission Hydrothermal vent Aeolian islands

Authors  Top | Dataset 
  • Rogelja, M.
  • Cibic, T.
  • Pennesi, C.
  • De Vittor, C.

Abstract
    Sediment samplings were performed to investigate the microphytobenthic community and photosynthetic activity adaptations to gas emissions and higher temperature in the Aeolian Islands during a three-year period (2012–2014). Higher microphytobenthic densities were recorded at the vent stations and values were even more pronounced in relation with high temperature. The gross primary production estimates strongly depended on microphytobenthic abundance values reaching up to 45.79 ± 6.14 mgC m−2 h−1. High abundances were coupled with low community richness and diversity. Motile diatom living forms were predominant at all stations and the greatest differences among vent and reference stations were detected on the account of the tychopelagic forms. Morphological deformities and heavily silicified diatom frustules were also observed. A significant influence of the gas emission and high temperature on the phototrophic community was highlighted suggesting the Aeolian Islands as a good natural laboratory for studies on high CO2 and global warming effects.

Dataset
  • Microphytobenthos in Panarea Island. ECO2 Project, more

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