Naslov
Bacterial abundance and production in oligotrophic south Adriatic waters: relation to plankton food web structure

Autori
Turk, Valentina ; Lučić, Davor ; Benović, Adam ; Terzić, Senka ; Ahel, Marijan ; Graham, Marc ; Malej, Alenka

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

Izvornik
Book of abstracts / - Ljubljana, 2003, 69-70

Skup
FEMS Congress of European Microbiologists

Mjesto i datum
Ljubljana, Slovenija, 29.06.2003. - 03.07.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ecology; oligotrophic water; food web

Sažetak
The bacterial abundance and production were investigated according to hydrographic regime and plankton vertical distribution during Medusa 1 (CREICO) cruise in the middle and southern Adriatic in spring 2002. At most stations we observed termocline at the depth of approx. 20m and a prominent fluorescence peak at about 70m. Phytoplankton taxonomic composition was assessed in terms of chemotaxonomic pigments and microzooplankton and net zooplankton were grouped according to their trophic role into pico-, nano-, micro- and omniphageus. The bacterial abundance and production showed values typical for oligotrophic water, with the range from 6.5 x 104 cells/l to 4.3 x 105 cells/l, and the total community incorporation rates of tritiated leucine ([3H]-Leu) from 0.01 mg C/l/hour to 0.39 mgC/l/hour. Phytoplankton was dominated by 19’ ; -hexanoyloxyfucoxanthin – ; containing phytoplankton (prymnesiopytes). Higher bacterial production was associated with increased abundance of pico- and nanophageus zooplankton.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija

POVEZANOST RADA