The Gulf Stream position influences the functional composition of phytoplankton in El Gergal reservoir (Spain)

摘要: The Gulf Stream position influences the functional composition of phytoplankton in El Gergal reservoir (Spain) latitudinal north-wall climatic conditions Atlantic North and Western Europe. Southerly movements (low Index values, GSI) typically induce unstable meteorological this region, while north displacements oceanic current (high GSI values) are associated with stable weather. In present article we explore a seven years data set including annual GSI, records community abundance to demonstrate that year-to-year changes its influence on prevailing weather have an effect long-term variability reservoir, ecosystem located coast Andalusia (SW Spain). Furthermore, describe response each considered groups position. Thus, northerly increased H+S1 cyanobacteria through non-linear function two marked thresholds. Lm dinoflagellates depicted significant positive linear correlation, B + P diatoms was negatively correlated GSI. Groups Y cryptophytes X1 J chlorophytes remained nearly constant for most studied but developed exponential increase at high years. Implications water quality management pointed out.