Book ID: 57395
Volume 096: Tell,Guillermo,Irina Izaguirre and Ines O'Farrell: Ecological and Taxonomical Remarks on the Desmid Flora of the Lower Uruguay River Basin (Argentina). 1994. 12 pls. IV,141 p. gr8vo. Paper bd.
In this study 147 desmid taxa, comprising 15 genera, from the LowerRiver Uruguay Basin (Argentina) are described. Each one of theregistered taxa is illustrated and its geographical distribution isgiven as well as the physical and chemical parameters of the samplingsites (temperature, pH, dissolved oxygen, conductivity, total solids,total phosphorus and nitrogen). After the floristic survey an ecologicalanlysis is presented making reference to the environmental requirements,the species richness and the abundance of these algae. The influence ofthe abiotic factors is analyzed by means of correlations and by thestudy of the ecological tolerance ranges. A cluster analysis is carriedout among all the desmid species revealing no definite algalassociations.