AME 72:98-104 (2014)  -  DOI: https://doi.org/10.3354/ame01693

Phosphate addition has minimal short-term effects on bacterioplankton community structure of the P-starved Eastern Mediterranean

Stilianos Fodelianakis1, Paraskevi Pitta2, Tron Frede Thingstad3, Panagiotis Kasapidis2, Ioannis Karakassis1, Emmanuel D. Ladoukakis1,* 

1Department of Biology, University of Crete, 70013 Heraklion, Crete, Greece
2Hellenic Centre for Marine Research, 71003 Heraklion, Crete, Greece
3Department of Biology, University of Bergen, 5020 Bergen, Norway
*Corresponding author:

ABSTRACT: The effect of the addition of a limiting nutrient to the composition and structure of bacterial communities in oligotrophic environments remains an interesting question. We conducted a mesocosm experiment to study short-term effects of phosphorus addition on bacterioplankton communities in the Eastern Mediterranean, which is a phosphorus-starved ecosystem. Inorganic phosphorus was added to 10 m deep pelagic water which was transported from offshore Crete, Greece, to mesocosms to yield a final concentration of 100 nM. Using 454 16S amplicon sequencing, we found that phosphorus addition during the first 72 h of the experiment had a minimal effect on bacterioplankton community composition and structure, affecting mostly the abundance of the ‘non-unique’ members of the community.


KEY WORDS: Mediterranean · Phosphorus · Mesocosm · Bacterioplankton communities


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Cite this article as: Fodelianakis S, Pitta P, Thingstad TF, Kasapidis P, Karakassis I, Ladoukakis ED (2014) Phosphate addition has minimal short-term effects on bacterioplankton community structure of the P-starved Eastern Mediterranean. Aquat Microb Ecol 72:98-104. https://doi.org/10.3354/ame01693

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