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Updated: Jul 30, 2025

Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression
Published on: July 28, 2023
Picoplankton diversity in an oligotrophic and high salinity environment in the central Adriatic Sea
Danijela Šantić1, Iva Stojan2,3, Frano Matić4
1Institute of Oceanography and Fisheries, Šetalište Ivana Meštrovića 63, Split, Croatia.
Abstract:
By combining qualitative 16S metabarcoding and quantitative CARD-FISH methods with neural gas analysis, different patterns of the picoplankton community were revealed at finer taxonomic levels in response to changing environmental conditions in the Adriatic Sea. We present the results of a one-year study carried out in an oligotrophic environment where increased salinity was recently observed. We have shown that the initial state of community structure changes according to environmental conditions and is expressed as qualitative and quantitative changes. A general pattern of increasing diversity under harsh environmental conditions, particularly under the influence of increasing salinity at the expense of community abundance was observed. Considering the trend of changing seawater characteristics due to climate change, this study helps in understanding a possible structural change in the microbial community of the Adriatic Sea that could affect higher levels of the marine food web.
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