Multiannual phytoplankton trends in relation to environmental changes across aquatic domains: A case study from Sardinia (Mediterranean Sea) |
| |
| Authors: | S Pulina S Suikkanen C T Satta M A Mariani B M Padedda T Virdis |
| |
| Institution: | 1. Department of Architecture, Planning and Design, University of Sassari, Sassari, Italy;2. Marine Research Centre, Finnish Environment Institute, Helsinki, Finland;3. ENAS – Ente Acque della Sardegna, Cagliari, Italy |
| |
| Abstract: | We investigated multiannual trends in phytoplankton in relation to several environmental drivers. We analyzed ecological data collected during the past two decades from three aquatic sites: an artificial lake, a coastal lagoon, and a marine coastal area. Hydrographic, nutrient, and phytoplankton data were statistically analyzed to detect trends and interactions. In all ecosystems, the chlorophyll a concentration decreased with increasing abundance of small-sized phytoplankton. Phytoplankton dynamics were related to decreased nutrient concentrations in the lake, to dynamics of phosphorus and decreased salinity in the lagoon, and probably to combined top-down and bottom-up processes in the marine gulf. |
| |
| Keywords: | Phytoplankton trans-domain aquatic ecosystems multiannual trends environmental changes Mediterranean basin |
|
|
