Beitrag
A case study of the phytoplankton used as a biological water quality element in a shallow temperate lake
Çelik, Kemal; Ulus, Halime
Fundamental and Applied Limnology Volume 195 Nr. 1 (2021), p. 61 - 71
53 Literaturangaben
veröffentlicht: Jun 10, 2021
Online veröffentlicht: Apr 27, 2021
Manuskript akzeptiert: Apr 11, 2021
Manuskript-Revision erhalten: Apr 11, 2021
Manuskript-Revision angefordert: Jan 6, 2021
Manuskript erhalten: Jun 9, 2020
ArtNo. ESP141019501004, Preis: 29.00 €
Abstract
Phytoplankton dynamics of Karagöl Lake, Balıkesir, Turkey were studied from summer 2015 to spring 2016 in order to assess the ecological status of the lake using the phytoplankton assemblage index (Q). The fuctional groups, J (Desmodesmus communis), X1 (Selenastrum bibraianum), LO (Ceratium hirundinella), P (Staurastrum pingue) and H1 (Anabaena crassa) dominated phytoplankton in summer, W2 (Trachelomonas volvocina), X1 (S. bibraianum) and LO (C. hirundinella) in fall, MP (Hantzschia amphioxys), D (Synedra acus), J (D. communis) and P (Fragilaria crotonensis) in winter, H1 (A. crassa), J (D. communis), W2 (T. volvocina) and P (S. pingue) in spring. The phytoplankton functional groups of Karagöl Lake were typical to well-mixed eutrophic shallow lakes. The canonical correspondence analysis (CCA) explained 95.4 % of the cumulative percentage of the variance in the phytoplankton functional groups and their relationships with environmental variables. The Q index showed that the ecological status of Karagöl Lake varied seasonally from bad to moderate. In winter 2015, the lake had a moderate ecological status and in spring 2016 it had a bad ecological status. The results of this study showed that the Q index satisfactorily reflected the changes in phytoplankton composition and functional group approach displayed itself as sensitive and responsive to environmental changes of shallow lakes, regardless of their geographic region.
Schlagworte
ecological status • phytoplankton functional groups • Q index • shallow lake