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.
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.
Autori: | ||
Data di pubblicazione: | 1994 | |
Titolo: | MACROALGAE AND PHYTOPLANKTON COMPETITION IN THE CENTRAL VENICE LAGOON | |
Rivista: | ENVIRONMENTAL TECHNOLOGY | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/09593339409385399 | |
Volume: | 15 | |
Appare nelle tipologie: | 2.1 Articolo su rivista |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
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Environmental Technology, Vol.15 pp 1-14.pdf | Documento in Post-print | Accesso chiuso-personale | Riservato |