Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Picoplankton and temperature dynamic in the Mar Piccolo of Taranto (Northern Ionian Sea). |
| Abstract | Picoplankton is composed of both < 2 micron pico-sized heterotrophic bacteria and autotrophic pigmented organisms, all involved in the functioning of the microbial loop. The microbial loop represents a sensitive descriptor of changes in environmental conditions, and microbial assemblages (e.g. heterotrophic and autotrophic picoplankton) due to their very high turnover rates are assumed to respond rapidly to any environmental change. On account of these features, microbial assemblages have been recently proposed as tools for monitoring the functioning of aquatic ecosystems. In this framework in the present study we determined autotrophic and heterotrophic picoplankton densities, for two years, in the Mar Piccolo of Taranto and their relationships with the temperature. Results evidenced that picoplankton abundances were comparable to those of other polluted coastal environment subjected to antrophogenic inputs. A significant relationship was found between temperature and both autotrophic (r = 0.72, p < 0.05) and heterotrophic (r = 0.84, p<0.05) picoplankton. |
| Source | II Workshop Progetto Vector, Roma, 25-26 febbraio 2009 |
| Keywords | heterotrophic picoplanktonautotrophic picoplanktonMar Piccolo |
| Year | 2009 |
| Type | Poster |
| Authors | Caroppo C., Alabiso G., Stabili L. |
| Text | 100169 2009 heterotrophic picoplankton autotrophic picoplankton Mar Piccolo Picoplankton and temperature dynamic in the Mar Piccolo of Taranto Northern Ionian Sea . Caroppo C., Alabiso G., Stabili L. IAMC CNR Picoplankton is composed of both < 2 micron pico sized heterotrophic bacteria and autotrophic pigmented organisms, all involved in the functioning of the microbial loop. The microbial loop represents a sensitive descriptor of changes in environmental conditions, and microbial assemblages e.g. heterotrophic and autotrophic picoplankton due to their very high turnover rates are assumed to respond rapidly to any environmental change. On account of these features, microbial assemblages have been recently proposed as tools for monitoring the functioning of aquatic ecosystems. In this framework in the present study we determined autotrophic and heterotrophic picoplankton densities, for two years, in the Mar Piccolo of Taranto and their relationships with the temperature. Results evidenced that picoplankton abundances were comparable to those of other polluted coastal environment subjected to antrophogenic inputs. A significant relationship was found between temperature and both autotrophic r = 0.72, p < 0.05 and heterotrophic r = 0.84, p<0.05 picoplankton. II Workshop Progetto Vector Roma 25 26 febbraio 2009 Nazionale Contributo Caroppo et al Vector 2009 bis Poster presentato al Congresso Caroppo_et_al_Vector_2009_bis.pdf Poster giorgio.alabiso ALABISO GIORGIO carmela.caroppo CAROPPO CARMELA loredana.stabili STABILI LOREDANA TA.P04.002.001 Fascia Costiera e Ambienti di Transizione analisi strutturale e funzionale delle componenti biotiche ed abiotiche degli ecosistemi per lo sviluppo sostenibile delle attivita |