Paleolimnológiai módszerek alkalmazásának korlátai sekély állóvizek esetében

Jázmin Jakab; Andrea Clara Böjthe; Andor Gergő Soltész; János Korponai; István Gyulai

doi:10.59258/hk.11449

Jázmin Jakab University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology https://orcid.org/0009-0004-1204-7874
Andrea Clara Böjthe University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology https://orcid.org/0009-0009-8882-113X
Andor Gergő Soltész University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology https://orcid.org/0009-0009-7399-5866
János Korponai National University of Public Service Faculty of Water Sciences, Department of Water Supply and Sewerage https://orcid.org/0000-0003-0211-192X
István Gyulai University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology https://orcid.org/0000-0003-2833-2819

Keywords: Paleolimnology, shallow standing water, heterogenity, subfossil, Cladocera

Abstract

Drought periods are increasing worldwide, and the water levels of our standing waters have dropped significantly. In the case of paleolimnological studies, the sediment of standing waters is examined to analyse the processes and environmental impacts that took place in the past. In paleolimnological research, when examining the remains of organisms preserved in sediments, including Cladocera remains, we tend to sample the sediment from the deepest parts of lakes where remains of organisms from the whole waterbody accumulate. Since in our country mainly shallow water bodies occur, the aim of our study was to investigate if it would be more appropriate to select more sampling points in shallow water bodies. Six water bodies were selected for sampling and three samples were taken from each water body, with the sampling sites located at least 75-100 meters apart. The habitats in the water bodies were similar. The results showed that sampling sites separated even by one hundred metres can differ significantly in number of individuals and species of Cladoceran remains.

Author Biographies

Jázmin Jakab, University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology

JÁZMIN JAKAB graduated in Biology from the Faculty of Science and Technology of the University of Debrecen in 2021. As part of her thesis, she conducted a comparative analysis of sediments in natural and artificial standing waters. From 2021 MSc student at the Department of Hydrobiology, University of Debrecen. Her primary research interests are the Cladocera communities of oxbow lakes with different trophic levels and the changes in abundance and diversity of these communities. Member of the Hungarian Hydrological Society.

Andrea Clara Böjthe , University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology

ANDREA CLARA BÖJTHE completed her BSc in Biology studies at the University of Debrecen, Faculty of Science and Technology in 2021. Her thesis topic was "Climate Change at the Global Level." She is currently enrolled in the University of Debrecen's MSc program in Hydrobiology. Her research interests are the Cladocera community of floodplain oxbows. She is member of the Hungarian Hydrological Society

Andor Gergő Soltész , University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology

ANDOR GERGŐ SOLTÉSZ graduated from the University of Debrecen, Faculty of Science and Technology, Biology BSc in 2022. Currently, he is an MSc student in Hydrobiology at the University of Debrecen. His research interests include the study of stagnant water zooplankton communities and Cladocera remains in sediments of oxbow lakes. He is using palaeolimnological methods to investigate the temporal changes in Cladocera species assemblages. Member of the Hungarian Hydrological Society.

János Korponai , National University of Public Service Faculty of Water Sciences, Department of Water Supply and Sewerage

JÁNOS KORPONAI limnologist, associate professor at the Faculty of Water Sciences, Department of Water Supply and Sewerage, National University of Public Service. Member of the Hungarian Hydrological Society.

István Gyulai, University of Debrecen, Faculty of Science and Technology, Department of Hydrobiology

ISTVÁN GYULAI environmental ecologist, assistant professor at the Department of Hydrobiology, Faculty of Science and Technology, University of Debrecen. Member of the Hungarian Hydrological Society.

Limits of paleolimnological methods in shallow standing waters

Abstract

Author Biographies