Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Distribution of the prokaryotic biomass and community respiration in the main water masses of the Southern Tyrrhenian Sea (June and December 2005) |
| Abstract | The distribution of the prokaryotic biomass (from both abundance and cell volume measurements) and microbial community respiration (by ETS activity) in the main water masses of the Southern Tyrrhenian Sea were studied. The data were collected from surface to the bottom depth (max 3600 m) in July and December 2005. Prokaryotic abundance and microbial respiration were higher in summer than late-autumn and decreased with depth in accordance with the water masses. The opposite was found for the prokaryotic cell volumes that increased with depth and were higher in December. The cell carbon content varied within the water masses and study periods (range 10-34 fg C cell-1) and overestimations and underestimations of biomass there would have been by using the routinely adopted conversion factor (20 fg C cell-1). The depth-integrated respiratory rates resulted comparable in the photic and aphotic layers. In July, 210 and 225 mg C m- 2 d-1 in the euphotic and aphotic zones, respectively, were remineralized while in December, 112 and 134 mg C m- 2 d-1, respectively, were. Speculations to quantify the carbon flow mediated by microbial community suggested the occurrence of different microbial behavior within the different water masses. |
| Source | Advances in Oceanography and Limnology (print) 1 (2), pp. 235–257 |
| Journal | Advances in Oceanography and Limnology (print) |
| Editor | Taylor & Francis, , Regno Unito |
| Year | 2010 |
| Type | Articolo in rivista |
| DOI | 10.1080/19475721.2010.541500 |
| Authors | La Ferla R., Azzaro M., Budillon G., Caroppo C., Decembrini F., Maimone G. |
| Text | 59960 2010 10.1080/19475721.2010.541500 Distribution of the prokaryotic biomass and community respiration in the main water masses of the Southern Tyrrhenian Sea June and December 2005 La Ferla R., Azzaro M., Budillon G., Caroppo C., Decembrini F., Maimone G. CNR IAMC Messina, CNR IAMC Taranto, IUN Napoli The distribution of the prokaryotic biomass from both abundance and cell volume measurements and microbial community respiration by ETS activity in the main water masses of the Southern Tyrrhenian Sea were studied. The data were collected from surface to the bottom depth max 3600 m in July and December 2005. Prokaryotic abundance and microbial respiration were higher in summer than late autumn and decreased with depth in accordance with the water masses. The opposite was found for the prokaryotic cell volumes that increased with depth and were higher in December. The cell carbon content varied within the water masses and study periods range 10 34 fg C cell 1 and overestimations and underestimations of biomass there would have been by using the routinely adopted conversion factor 20 fg C cell 1 . The depth integrated respiratory rates resulted comparable in the photic and aphotic layers. In July, 210 and 225 mg C m 2 d 1 in the euphotic and aphotic zones, respectively, were remineralized while in December, 112 and 134 mg C m 2 d 1, respectively, were. Speculations to quantify the carbon flow mediated by microbial community suggested the occurrence of different microbial behavior within the different water masses. 1 http //dx.doi.org/10.1080/19475721.2010.541500 Distribution of the prokaryotic biomass and community respiration in the main water masses of the Southern Tyrrhenian Sea June and December 2005 AIOL_2_2010.pdf Articolo in rivista Taylor Francis 1947 5721 Advances in Oceanography and Limnology print Advances in Oceanography and Limnology print Advances in Oceanography and Limnology franco.decembrini DECEMBRINI FRANCO carmela.caroppo CAROPPO CARMELA maurizio.azzaro AZZARO MAURIZIO rosabruna.laferla LA FERLA ROSABRUNA giovanna.maimone MAIMONE GIOVANNA TA.P02.016.002 Particellato sospeso e microorganismi nei processi biogeochimici |