Seasonal and spatial distribution of ciliates in the sandy hyporheic zone of a lowland stream |
| |
| Affiliation: | 1. Department of Limnology, Institute for Animal Evolution and Ecology, University of Münster, 48149 Münster, Germany;2. Department of General Ecology and Limnology, Zoological Institute, University of Cologne, Weyertal 119, 50923 Cologne, Germany;1. Graduate School, Qinghai University, Xining, Qinghai, China;2. Department of Neurosurgery, Qinghai Provincial People''s Hospital, Xining, Qinghai, China;1. Finnish Environment Institute (SYKE), P.O. Box 140, FI-00251 Helsinki, Finland;2. Forest Monitoring Laboratory, Aleksandras Stulginskis University, Studentu 13, Kaunas Distr. LT-53362, Lithuania;3. Bavarian Forest National Park, Freyunger Str. 2, D-94481 Grafenau, Germany;4. Norwegian Institute of Bioeconomy Research, P.O. Box 115, NO-1431 Ås, Norway;5. Norwegian Institute for Water Research, Gaustadalléen 21, NO-0349 Oslo, Norway;6. Environment Agency Austria, Department for Ecosystem Research and Data Information Management, Spittelauer Lände 5, A-1090 Vienna, Austria;7. Tartu University, Institute of Ecology and Earth Sciences, Vanemuise St. 46, EE-51014 Tartu, Estonia;8. State Ltd Latvian Environment, Geology and Meteorology Centre, 165 Maskavas Str., LV-1019 Riga, Latvia;9. Czech Geological Survey, Department of Geochemistry, Klárov 3, CZ-118 21 Prague 1, Czechia;10. Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland;11. Swedish University of Agricultural Sciences, P.O. Box 7050, SE-75007 Uppsala, Sweden;12. Finnish Meteorological Institute, P.O. Box 503, FI-00101 Helsinki, Finland;13. Czech Hydrometeorological Institute, Observatory Košetice, CZ-394 22 Košetice, Czechia;1. Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China;2. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;3. Technische Universität Kaiserslautern, Ecology Group, D-67663 Kaiserslautern, Germany;4. Engineering Research Center of Enrivonmental DNA and Ecological Water Health Assessment, Shanghai Ocean University, Shanghai 201306, China;1. Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea;2. Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700, Leoben, Austria;1. Laboratory of Protozoa, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China;2. Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;3. Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan;1. School of Health and Sport Sciences, University of the Sunshine Coast, Australia;2. Department of Physiotherapy, Singapore General Hospital, Singapore;3. Department of Physical Therapies, Australian Institute of Sport, Australia |
| |
| Abstract: | The seasonal and spatial distribution of abundance and biomass as well as the taxonomic composition of ciliates inhabiting the sandy hyporheic zone of a lowland stream were studied. The mean abundances varied between 0 and 895 cells ml−1 sediment, and the mean ciliate biomass ranged between 0 and 5.3 μg C ml−1 sediment. Ciliate numbers and biomasses were greatest at the sediment surface and declined significantly with increasing sample depth. Abundance and biomass varied seasonally, with maximum values in late autumn and early winter and minimum values in early summer. The community was dominated by small representatives of the Hymenostomatia and Peritrichia. Ciliate community composition changed with depth from a very diverse community at the sediment surface to a less diverse one at greater sediment depths. Ciliate abundance and biomass were two orders of magnitude lower in the channel water than in the hyporheic zone. Although representatives of all sediment taxa could also be found in the channel water, the greatest concentrations of Peritrichia and Suctoria were in the hyporheic zone. The species of the sandy Ladberger Mühlenbach sediment were ubiquitous; there was no single ciliate fauna that proved to be typical for this kind of freshwater biotope. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
