Τίτλος:
Epilithic diatoms and biological quality of Stratonikon mountain creeks, Chalkidiki (Greece) [Diatomées épilithiques et qualité biologique des ruisseaux du mont Stratonikon, Chalkidiki (Grèce)]
Περίληψη:
During two sampling periods (lowflow and highflow) epilithic diatoms were collected in two hydrographic sectors of Stratonikon mountain. In the study 162 taxa were identified from which 42 species, one sub-species and nine varieties are first records for the Greek flora. Running waters present a high species richness and most of the dominant species found in the study area are cosmopolitan, alkaliphilous, prefering well oxygenated waters. The species Achnanthes minutissima var. minutissima, Amphora pediculus, Cocconeis placentula, Rhoicosphenia abbreviata and Nitzschia dissipata var. dissipata were dominant during both sampling periods. Under highflow conditions, the species Gomphonema olivaceum var. olivaceum and G. tergestinum became also dominant. The Shannon's index values varied from 0.6 to 5.0 and evenness from 0.15 to 0.86. Dendrograms and MDS plots showed the floristic particularities of sites due to human activities and environmental conditions.The values of IPS diatomic index showed that the biological quality of the water was very good during the study period. © ADAC / Elsevier, Paris.
Συγγραφείς:
Montesanto, B.
Ziller, S.
Coste, M.
Περιοδικό:
CRYPTOGAMIE; ALGOLOGIE
Εκδότης:
Elsevier Masson SAS
Λέξεις-κλειδιά:
Abbreviata; Achnanthes; Achnanthidium minutissimum; algae; Amphora; Amphora pediculus; Bacillariophyceae; Bacillariophyta; Cocconeis placentula; Gomphonema olivaceum; Gomphonema tergestinum; Nitzschia dissipata; Pediculus; Rhoicosphenia; Rhoicosphenia abbreviata
DOI:
10.1016/S0181-1568(99)80017-8
