Dynamics of picoplankton community from coastal waters to the open sea in the Central Adriatic
| Autor: | Grozdan Kušpilić, Danijela Šantić, Živana Ninčević Gladan, Stefanija Šestanović, Mladen Šolić, Marin Ordulj, Nada Krstulović |
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| Rok vydání: | 2013 |
| Předmět: |
Cyanobacteria
Adriatic Sea Environmental Engineering Prochlorococcus Synechococcus picoeukaryotes picophytoplankton HNA bacteria LNA bacteria Adriatic Sea Aquatic Science Oceanography lcsh:Aquaculture. Fisheries. Angling Botany Autotroph LNA bacteria Picoplankton Ecology Evolution Behavior and Systematics Prochlorococcus HNA bacteria Trophic level lcsh:SH1-691 Synechococcus Biomass (ecology) biology Ecology biology.organism_classification picophytoplankton picoeukaryotes Eutrophication |
| Zdroj: | Mediterranean Marine Science; Τόμ. 15 Αρ. 1 (2014); 179-188 Mediterranean Marine Science; Vol. 15 No. 1 (2014); 179-188 Mediterranean Marine Science, Vol 15, Iss 1, Pp 179-188 (2013) |
| ISSN: | 1791-6763 1108-393X |
| DOI: | 10.12681/mms.701 |
| Popis: | Mike Waring 12.00 Flow cytometry was used to describe seasonal cycles of Prochlorococcus (Prochl), Synechococcus (Syn), picoeukaryotes and heterotrophic bacteria in the central Adriatic Sea along the trophic gradient from January to December 2010. All picoplankton parameters decreased from eutrophic to oligotrophic areas, while the biomass ratio of bacterial to autotrophic picoplankton showed an increase along the trophic gradient. Bacterial biomass ranged from 5.28 to 21.20 μg C l -1 . Increased values were present during warmer seasons with the domination of low nucleic acid (LNA) group of bacteria. The high nucleic acid (HNA) bacterial group dominated during the winter and the spring. Bacterial production ranged from 0.09 -0.45 × 10 4 cells ml -1 h -1 .At coastal stations increased production was present during the winter and the spring and was more or less uniform at open sea stations. Biomasses of Syn and Prochl ranged from 0.16 to 11.47 µg C -1 l-1 and from 0.01 to 3.08 µg C l -1 , respectively. They were elevated during the summer and the autumn at coastal stations and during the late winter at the open sea. Syn biomass always dominated over Prochl participating with 61.6-97.2% in biomass of cyanobacteria. Biomass of picoeukaryotes ranged from 1.21 to 21.85 µg C l -1 and was the highest during the winter. Their biomass notably prevailed in autotrophic picoplankton (APP) biomass over that of picocyanobacteria during the whole year. Autotrophic components (Prochl, Syn and picoeukaryotes) made greater contribution to the picoplankton biomass in mesotrophic and eutrophic areas, while heterotrophic bacteria became more important under oligotrophic conditions. Normal 0 false false false EN-GB X-NONE X-NONE |
| Databáze: | OpenAIRE |
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