Original paper
Diatom assemblages in springs in Castellón province, Eastern Spain
Aboal, Marina; Puig, Ma. Angels; Prefasi, Mercedes
Algological Studies/Archiv für Hydrobiologie, Supplement Volumes No. 90 (1998), p. 79 - 95
39 references
published: Nov 10, 1998
DOI: 10.1127/algol_stud/90/1998/79
ArtNo. ESP142012500007, Price: 29.00 €
Abstract
The composition and abundance of diatom assemblages were studied together with the geographical and physico chemical variables of 135 springs in Castellón province, Eastern Spain, during 1989-90. Ionic strength appeared to be the dominant environmental factor affecting diatom distribution. Principal Component Analysis revealed the importance of temperature, nitrogen eutrophication and ionic strength for grouping the springs. Three types of spring were distinguished: highly mineralized with a high temperature; hard carbonate water of medium mineralization and high temperature; and less mineralized bicarbonate water of low temperature. Canonical Correspondence Analysis based on the physico-chemical characteristics of the water, altitude and diatom taxa, reinforced the conclusions of the PCA. A Canonical Correspondence Analysis using the physico-chemical characteristics of the water, diatom taxa, altitude and geographical district revealed five diatom assemblages and groups of springs: the strongly mineralized and high altitude springs, mainly found in Plana Baja and Alcalatén; high altitude springs of low mineralization; low altitude springs with high levels of mineralization and/or eutrophication, mostly in Alto Palancia and Alto Mijares; springs of medium altitude and low mineralization and fairly low altitude springs which were poorly mineralized and low in nutrients.
Keywords
Diatoms • springs • mineralization • temperature • nitrogen • altitude • distribution • Spain