Naslov
Reorganization of the microbial food web structure associated with the rise in temperature: a case study of the Adriatic Sea

Autori
Šolić, Mladen ; Grbec, Branka ; Matić, Frano ; Šantić, Danijela ; Šestanović, Stefanija ; Ninčević Gladan, Živana ; Bojanić, Natalia ; Ordulj, Marin ; Jozić, Slaven ; Vrdoljak, Ana

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

Izvornik
15th Symposium on Aquatic Microbial Ecology(SAME15) / Gligora Udovič, Marija ; Orlić, Sandi ; Šolić, Mladen - Zagreb : Institut Ruđer Bošković, 2017, 175-175

ISBN
978-953-7941-18-5

Skup
15th Symposium on Aquatic Microbial Ecology(SAME15)

Mjesto i datum
Zagreb, Hrvatska, 03.09.2017. - 08.09.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Microbial food web ; Global warming ; Long-term data ; Self-Organizing Map Analysis ; Adriatic Sea

Sažetak
Along the eastern Adriatic coast sea surface temperature (SST) increased by an average of 1.03 °C during the period from 1979 to 2015, while in the recent period, starting from 2008, a strong upward almost linear trend of 0.013 °C/month was noted. During this period, SST increased by 1.25 oC. In the present study, Self-Organizing Map (SOM) procedure was used in analyzing time series (1997-2015) of a number of microbial parameters at two stations with different trophic status in the central Adriatic Sea. The rise in temperature was associated with: (1) the increasing importance of microbial heterotrophic activities and (2) the increasing importance of autotrophic picoplankton (APP) in the MFW. The temperature increase was accompanied with increase of bacterial growth, bacterial biomass turnover, bacterial predator abundances (particularly HNF) and grazing on bacteria, suggesting strong top-down control and increase in the proportion of bacterial carbon channelled to higher trophic levels. Simultaneously, autotrophic picoplankton (APP) biomass (including Synechococcus, Prochlorococcus and picoeukaryotes) significantly increased with temperature, suggesting that APP have a great potential as an additional carbon biomass that can be channelled towards higher levels in the warming conditions.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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