Functional phytoplankton distribution in hypertrophic systems across water body size
- 482 Downloads
Distribution of algae was studied in a series of water bodies ranging from 10−2 to ~109 m2 in the lowland region of the Carpathian basin in a late summer period. It has been demonstrated that lake size has pronounced impact on the morphological and chemical properties of the water bodies, and acting through these variables it shapes the distribution of the various algal groups in the water bodies of different sizes. Changes of the relative abundance of the various algal groups along the spatial scale showed four apparently distinct patterns. We found increasing relative abundance of heterocytic cyanobacteria, dinoflagellates and those taxa which have no capability of active locomotion and are characterised by high sinking rate in the large water bodies. The flagellated algae (Chlamydomonas spp., euglenophytes, Synura spp.) and the tichoplanktonic elements were characteristic for small-sized water bodies. Most of the chrysophytes and several other flagellated taxa showed hump-shaped distribution along the size scale of water bodies. The group of large colonial flagellated chlorophytes, non-heterocytic filamentous cyanobacteria and filamentous chlorophytes occasionally occurred in high relative abundance both in small and large-sized water bodies. Our findings suggest that water body size has pronounced impact on the composition of algal assemblages.
KeywordsIsland biogeography Algae Functional groups Water body size Size scale dependence
This research was supported by the Hungarian National Science Foundation (OTKA Nr. 104279) and by the Bolyai Fellowship of the Hungarian Academy of Sciences. The authors were supported by TÁMOP-4.2.4.A/2-11-1-2012-0001, TÁMOP-4.2.1./B-09/1/KONV-2010-0007, TÁMOP-4.2.2/C-11/1/KONV-2012-0010 and TÁMOP-4.2.2/B-10-1-2010-0024 projects. The authors are grateful for the referees for their very constructive comments.
- Borics, G., G. Várbíró, I. Grigorszky, E. Krasznai, S. Szabó & K. T. Kiss, 2007. A new evaluation technique of potamo-plankton for the assessment of the ecological status of rivers. Large Rivers 17(3–4): 465–486.Google Scholar
- Hastie, T. & R. J. Tibshirani, 1990. Generalized Additive Models. Chapman and Hall, London.Google Scholar
- Komarek, J., 2013. Süsswasserflora von Mitteleuropa, Band 19/3.Google Scholar
- Smayda, T. J., 1970. The suspension and sinking of phytoplankton in the sea. Oceanography and Marine Biology. Annual Review 8: 353–414.Google Scholar
- Smith, V. H., B. L. Foster, J. P. Grover, R. D. Holt, M. A. Leibold & F. de Noyelles Jr., 2005. Phytoplankton species richness scales consistently from laboratory microcosms to the world’s oceans. Proceedings of the National Academy of Sciences of the United States of America 102: 4393–4396.PubMedCentralCrossRefPubMedGoogle Scholar
- Ter Braak C. J. F, & P. Smilauer, 2002. Canoco Reference Manual and Canodraw for Windows User’s Guide: Software for Canonical Community Ordination (Version 4.5). Microcomputer Power, Ithaca.Google Scholar
- Ter Braak, C. J. F. & P. F. M. Verdonschot, 1995. Canonical correspondence analysis and related multivariate methods in aquatic ecology. Aquatic Sciences 57: 253–287.Google Scholar
- Wetzel, R. G., 2001. Limnology, Lake and River Ecosystem. Academic Press, New York.Google Scholar