Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Cyanobacterial diversity and potentially toxic species in the Mar Piccolo of Taranto (Northern Ionian Sea). |
| Abstract | Marine cyanobacteria are found in all the oceans of the worlds, in a variety of forms which may differ among seasons and geographical locations (Schopf, 1996; Golubic et al., 1999). Illuminated coastal sediments normally host cyanobacterial communities (Golubic et al., 1999), so that benthic cyanobacteria are also sporadically found in the water column, because of physical processes such as wave action. Only a few cyanobacterial forms occupy pelagic environments, since they are represented almost exclusively by the two picoplanktonic genera Synechococcus (Waterbury et al., 1979) and Prochlorococcus (Chisholm et al., 1988; Urbach et al., 1992). On the basis of these considerations, we focussed our study in Mar Piccolo of Taranto (Northern Ionian Sea) to assess, over an annual cycle the culturable filamentous cyanobacterial abundances and taxonomy. Furthermore the presence of the potentially toxic cyanobacterial species was also monitored. Results evidenced that, in addition to the typical picoplanktonic Synechococcus, the culture techniques allowed us to isolate and identify cyanobacteria belonging to the oscillatoriacean genera Geitlerinema, Leptolyngbya, Oscillatoria and Spirulina. Even if these filamentous morphotypes represent a minor fraction of the total cyanobacterial community, their importance could be related to their contribution to the phytoplankton diversity. Among the cyanobacterial species, the presence of a potentially toxic species Oscillatoria nigro-viridis must be underlined, taking into account the intense musselculture activities which take place in the Mar Piccolo of Taranto. |
| Source | GeoItalia 2007, Rimini, 10-11 settembre 2007 |
| Keywords | cyanobacteriabrackish waterstoxic phytoplankton speciesMar Piccolo |
| Year | 2007 |
| Type | Poster |
| Authors | Caroppo C. |
| Text | 99968 2007 cyanobacteria brackish waters toxic phytoplankton species Mar Piccolo Cyanobacterial diversity and potentially toxic species in the Mar Piccolo of Taranto Northern Ionian Sea . Caroppo C. IAMC CNR Marine cyanobacteria are found in all the oceans of the worlds, in a variety of forms which may differ among seasons and geographical locations Schopf, 1996; Golubic et al., 1999 . Illuminated coastal sediments normally host cyanobacterial communities Golubic et al., 1999 , so that benthic cyanobacteria are also sporadically found in the water column, because of physical processes such as wave action. Only a few cyanobacterial forms occupy pelagic environments, since they are represented almost exclusively by the two picoplanktonic genera Synechococcus Waterbury et al., 1979 and Prochlorococcus Chisholm et al., 1988; Urbach et al., 1992 . On the basis of these considerations, we focussed our study in Mar Piccolo of Taranto Northern Ionian Sea to assess, over an annual cycle the culturable filamentous cyanobacterial abundances and taxonomy. Furthermore the presence of the potentially toxic cyanobacterial species was also monitored. Results evidenced that, in addition to the typical picoplanktonic Synechococcus, the culture techniques allowed us to isolate and identify cyanobacteria belonging to the oscillatoriacean genera Geitlerinema, Leptolyngbya, Oscillatoria and Spirulina. Even if these filamentous morphotypes represent a minor fraction of the total cyanobacterial community, their importance could be related to their contribution to the phytoplankton diversity. Among the cyanobacterial species, the presence of a potentially toxic species Oscillatoria nigro viridis must be underlined, taking into account the intense musselculture activities which take place in the Mar Piccolo of Taranto. GeoItalia 2007 Rimini 10 11 settembre 2007 Nazionale Contributo Cianobatteri nel Mar Piccolo Poster presentato al Congresso Cianobatteri_nel_Mar_Piccolo.pdf Poster carmela.caroppo CAROPPO CARMELA 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 |