Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Deep-chlorophyll maximum time series in a transitional area of the Augusta Gulf (Sicily): microbial community structures and functions. |
| Abstract | An integrated study was carried out to follow the temporal evolution of microbiological parameters during a 48 h period, in relation to the deep chlorophyll maximum (DCM) at a coastal station. The micro-organisms showed an active role in the environment and a different distribution, without a clear diel cycle. The phytoplankton community, responsible for the DCM, consisted mainly of diatoms. Their distribution in relation to pycnocline showed an opposite trend with respect to picophytoplankton. Total bacterioplankton contributed to enzymatic degradation of particulated organic carbon (by producing ?-glucosidase and aminopeptidase), with peaks related to changes in the main water current. We estimated that about 25% of particulate organic carbon per day may be hydrolysed by bacteria. The living bacterioplankton represented 20% of the total. The picophytoplankton fraction contributed significantly to the high values of alkaline phosphatase, suggesting a fast P regeneration. Respiration showed significant correlation with the physical and chemical parameters as well as with the different planktonic fractions. |
| Source | Chemistry in ecology (Print) 20 (1), pp. S267–S284 |
| Keywords | Bacteriaphytoplanktonmicrozooplanktonenzymatic activityparticulated matter |
| Journal | Chemistry in ecology (Print) |
| Editor | Gordon and Breach Science Publishers., New York, Stati Uniti d'America |
| Year | 2004 |
| Type | Articolo in rivista |
| DOI | 10.1080/02757540410001689812 |
| Authors | Zaccone R.; Caroppo C.; La Ferla R.; Zampino D.; Caruso G.; Leonardi M.; Maimone G.; Azzaro M.; Sitran R. |
| Text | 59867 2004 10.1080/02757540410001689812 Scopus 2 s2.0 5044252832 ISI Web of Science WOS WOS 000208520200023 Bacteria phytoplankton microzooplankton enzymatic activity particulated matter Deep chlorophyll maximum time series in a transitional area of the Augusta Gulf Sicily microbial community structures and functions. Zaccone R.; Caroppo C.; La Ferla R.; Zampino D.; Caruso G.; Leonardi M.; Maimone G.; Azzaro M.; Sitran R. CNR IAMC MESSINA CNR IAMC TARANTO An integrated study was carried out to follow the temporal evolution of microbiological parameters during a 48 h period, in relation to the deep chlorophyll maximum DCM at a coastal station. The micro organisms showed an active role in the environment and a different distribution, without a clear diel cycle. The phytoplankton community, responsible for the DCM, consisted mainly of diatoms. Their distribution in relation to pycnocline showed an opposite trend with respect to picophytoplankton. Total bacterioplankton contributed to enzymatic degradation of particulated organic carbon by producing glucosidase and aminopeptidase , with peaks related to changes in the main water current. We estimated that about 25% of particulate organic carbon per day may be hydrolysed by bacteria. The living bacterioplankton represented 20% of the total. The picophytoplankton fraction contributed significantly to the high values of alkaline phosphatase, suggesting a fast P regeneration. Respiration showed significant correlation with the physical and chemical parameters as well as with the different planktonic fractions. 20 Cited by 8 Scopus, SJR 2011 0.284 IF 2011=0.615 articolo su rivista Zaccone_et_al_2004_deep_chl_max.pdf Articolo in rivista Gordon and Breach Science Publishers. 0275 7540 Chemistry in ecology Print Chemistry in ecology Print Chem. ecol. Print Chemistry in ecology. Print Chemistry and ecology Print SITRAN RAFFAELLA gabriella.caruso CARUSO GABRIELLA danielaclotilde.zampino ZAMPINO DANIELA CLOTILDE carmela.caroppo CAROPPO CARMELA maurizio.azzaro AZZARO MAURIZIO rosabruna.laferla LA FERLA ROSABRUNA marcella.leonardi LEONARDI MARCELLA renata.zaccone ZACCONE RENATA giovanna.maimone MAIMONE GIOVANNA TA.P02.016.002 Particellato sospeso e microorganismi nei processi biogeochimici |