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Changes in Algal Plankton Composition and Physico-Chemical Variables in a Shallow Oxbow Lake

Authors :
Majd Muwafaq Yaqoob
Csaba Berta
László József Szabó
György Dévai
Szilárd Szabó
Sándor Alex Nagy
István Bácsi
Alexandra Simon
János Nagy
Imre Somlyai
Éva Ács
István Grigorszky
Source :
Water, Vol 13, Iss 17, p 2339 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

In our work, we sought to answer whether we find differences among the various zones of an oxbow lake with different land uses based on physico-chemical variables and dominant algal plankton species. The two ends of the oxbow lake are bordered by settlements, and near them there are open water areas where fishing is the major utilization form. Between the two open water areas we find a protected area with a large aquatic plant coverage and two transition zones towards the open water areas. The oxbow lake receives periodic water replenishment only at one end from one of the open water areas. During summer—due to the lack of rain—the water of the oxbow lake is used for irrigation in the surrounding arable land, so the water level fluctuation can be significant in the riverbed. Our study was performed within a vegetation period of spring, early summer, mid-summer, and fall. In connection with the ecological classification of a smaller water body, studies on the physical and chemical properties of the water and the composition of the algal plankton are usually carried out in few places and relatively infrequently. The characteristics of a water body are also influenced by seasonal changes, which can be the changes in the extent of vegetation coverage, the way land is used and the possibility of water replenishment, to which the algal community usually responds with changes. Based on our study, it can be said that even in a relatively small water body, we found a large differences based on the chemical and physical properties of the water and the characteristic algal species. Open water zones, areas with large macrovegetation coverage, and the transition zones were separated from each other.

Details

Language :
English
ISSN :
20734441
Volume :
13
Issue :
17
Database :
Directory of Open Access Journals
Journal :
Water
Publication Type :
Academic Journal
Accession number :
edsdoj.7bb69b1199249cabd53881b71ad7ced
Document Type :
article
Full Text :
https://doi.org/10.3390/w13172339