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EnglishThe presence-absence of macroalgae and/or phytoplankton in some areas of the Venice lagoon and the factors controlling the prevailing of one over the other were tested by monitoring two critical sites over March-December 1990. One, Sacca Sessola [B1], was the lagoon area more densely populated by macroalgae, vice versa the other, namely Fusina [D] displayed only phytoplankton blooms. For this purpose macroalgae and phytoplankton biomass variations were studied directly in field. In addition, macroalgal biomass growth was studied by resuspending pre-determined biomass amounts into net cages placed at different depths. These semi-natural methods were not able to reproduce the real algal growth, however allowed to identify the main causes of phytoplankton blooms and macroalgal absence at Fusina.
http://hdl.handle.net/10278/14738| Titolo: | Macroalgae and phytoplankton competition in the central Venice lagoon |
| Autori interni: | SFRISO, Adriano PAVONI, Bruno |
| Data di pubblicazione: | 1994 |
| Rivista: | ENVIRONMENTAL TECHNOLOGY |
| Abstract: | The presence-absence of macroalgae and/or phytoplankton in some areas of the Venice lagoon and the factors controlling the prevailing of one over the other were tested by monitoring two critical sites over March-December 1990. One, Sacca Sessola [B1], was the lagoon area more densely populated by macroalgae, vice versa the other, namely Fusina [D] displayed only phytoplankton blooms. For this purpose macroalgae and phytoplankton biomass variations were studied directly in field. In addition, macroalgal biomass growth was studied by resuspending pre-determined biomass amounts into net cages placed at different depths. These semi-natural methods were not able to reproduce the real algal growth, however allowed to identify the main causes of phytoplankton blooms and macroalgal absence at Fusina. |
| Handle: | http://hdl.handle.net/10278/14738 |
| Appare nelle tipologie: | 2.1 Articolo su rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Environmental Technology, Vol.15 pp 1-14.pdf | Documento in Post-print | Accesso chiuso-personale | Riservato |
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