Naslov
First record of aerobic anoxygenic phototrophs in the Eastern Adriatic Sea

Autori
Šestanović, Stefanija ; Šantić, Danijela ; Vrdoljak, Ana ; Šolić, Mladen ; Koblížek, Michal

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
15th Symposium on Aquatic Microbial Ecology : Book of Abstract / Gligora Udovč, Marija ; Orlić, Sandi ; Šolić, Mladen - Zagreb : Institut Ruđer Bošković, 2017, 113-113

ISBN
978-953-7941-18-5

Skup
15th Symposium on Aquatic Microbial Ecology

Mjesto i datum
Zagreb, Hrvatska, 03.09.2017. - 08.09.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
aerobic anoxygenic phototrophs ; Adriatic Sea ; picoplankton community

Sažetak
The presence and spatial patterns of aerobic anoxygenic phototrophs were investigated, for the first time, in the Adriatic Sea. Also, the spatial patterns of the whole picoplankton community as well as the environmental factors that potentially influence these patterns were highlighted. Aerobic anoxygenic phototrophs abundances ranged from 10 x103 to 240 x 103 cells mL-1 and their proportion in total bacteria abundances ranged from 2.49 to 19.89%. These values are in the upper range of aerobic anoxygenic phototrophs abundances observed in marine environments. Aerobic anoxygenic phototrophs seem to be more abundant in mesotrophic coastal and estuarine waters than in the oligotrophic open sea implying their clear preference for higher trophic environments. Multivariate analyses proved that environmental factors influenced the picoplankton community interdependently. Chlorophyll a was the main driving factor for the picoplankton community, accounting for 33.3% of picoplankton community variance, followed by NO2 (17.9% of variance explained) and temperature (14.2% of variance explained). Chlorophyll a showed stronger correlation with aerobic anoxygenic phototrophs, non-pigmented bacteria and picoeukaryotes than with cyanobacteria. Abundance of cyanobacteria was more correlated to salinity and the N:P ratio than to nutrient concentrations.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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