Naslov
Volume, abundance and biomass of sediment bacteria in the eastern mid Adriatic Sea

Autori
Šestanović, Stefanija ; Šolić, Mladen ; Krstulović, Nada ; Bogner, Danijela

Izvornik
Acta Adriatica (0001-5113) 46 (2005), 2; 177-191

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
bacterial biomass; bacterial abundance; bacterial volume; sediment; Adriatic Sea

Sažetak
Bacterial abundance, biomass, cell volume, and morphological diversity were studied in sediment samples collected from the coastal area of the eastern mid Adriatic Sea. Samples from the topmost 10 cm of sediment were taken monthly from January to December 2002. The number of bacteria varied from 3.54 x 109 cells g– 1 in July to 8.08 x 109 cells g– 1 in September. Biomass was lowest in May (78 µ ; ; g C g-1) and highest in December (378 µ ; ; g C g-1). The volume of the bacteria varied markedly with season, fluctuating from 3.87 x 108 µ ; ; m3 g-1 in May to 3.12 x 109 µ ; ; m3 g-1 in December. Cells with a volume smaller than 0.1 µ ; ; m3 accounted for the largest number of bacteria (62%) and cocci comprised 93% of these cells. More than 80% of all rod cells had a volume smaller than 0.5 µ ; ; m3. The majority of filamentous cells (63%) belonged to the 0.32 µ ; ; m3 volume class. Rodshaped cells were dominant in terms of volume (45-72%) and biomass (42-72%) and cocci in terms of abundance (52-70%). Cells smaller than 0.5 µ ; ; m3 made up 88-94% of the bacteria and 68-84% of the biomass in the summer and 6-44% of the bacteria and and 21-81% biomass in the winter.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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