Microalgal responses to physico-chemical variability in the small temporarily open/closed Seteni Estuary, South Africa
作者： NK Carrasco , R Perissinotto
DOI: 10.2989/16085914.2014.933305
关键词: Salinity 、 Dissolved inorganic nitrogen 、 Phytoplankton biomass 、 Phytoplankton 、 Seasonality 、 Natural variability 、 Ecology 、 Estuary 、 Biomass (ecology) 、 Environmental science
摘要: The Seteni Estuary is a small temporarily open/closed estuary (TOCE) in South Africa under the influence of agricultural practices. While general significance microalgae to estuarine production widely recognised, factors regulating microalgal biomass these heterogeneous systems are less well understood, particularly when man-induced pressures superimposed on natural variability. This study investigated responses physico-chemical variability nutrient-enriched 2008–2009. Microphytobenthic ranged from 1.1 91.7 mg Chl m-2, while phytoplankton varied between 0.22 and 18 m-3. Despite high dissolved inorganic nitrogen (DIN) concentrations recorded, salinity rainfall were identified as main environmental drivers, highlighting importance allochthonous inputs. this system appears function typical TOCE, relatively low recorded may be an artifact several such ...
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