Contribution
Diatom assemblages in the River Ter
Sabater, S.; Sabater, F.
Archiv für Hydrobiologie Volume 111 Number 3 (1988), p. 397 - 408
15 références bibliographiques
publié: Feb 3, 1988
DOI: 10.1127/archiv-hydrobiol/111/1988/397
ArtNo. ESP141011103006, Prix: 29.00 €
Abstract
Diatom composition and distribution were studied in a Mediterranean river in Catalonia, NE Spain for a year. A hundred and twenty five taxa were found in the river. Ordination of the assemblages was carried out by a PCA. They proved to be dependant on the chemical characteristics of the water and human influence. An assemblage of Navicula, Nitzschia and Gomphonema was found in the hard, nutrient-rich waters of the middle reach. Fragilaria sp. pl. was dominant in hard, oxygenated waters below the reservoirs. Nitzschia gandersheimiensis, Gomphonema parvulum and Cyclotella meneghiniana were the most tolerant species to pollution.
Mots-clefs
River Ter • Catalonia • Spain • chemical