SEDAT VAHDET YERLİ, ERSİN KIVRAK, HASAN GÜRBÜZ, Elif MANAV, FATİH MANGIT, Onur TÜRKECAN

Phytoplankton community, nutrients and chlorophyll a in Lake Mogan (Turkey); with comparison between current and old data

Mogan Gölü’nün fitoplankton kommunite yapısı, klorofil a ve fiziko-kimyasal özellikleri Ekim 2005 ve Ekim 2006 arasında bir yıl süreyle araştırılmıştır. Elde edilen veriler önceki araştırmalardan elde edilen verilerle karşılaştırılmıştır. Son yıllarda, göldeki besin tuzu konsantrasyonlarında evsel atıkların göle girişinden dolayı artış gözlenmiştir. Gölün fitoplankton komunitesinde Chlorophyta and Cyanobacteria’nın birlikte dominant olduğu belirlenmiştir. Merismopedia minima, Microcystis aeruginosa, Sphaerocystis schroeteri and Dictiyosphaerium pulchellum sıcak dönemde (Mayıs-Ekim) dominant olmuştur. Kuzey yarım kürenin ılıman bölgesindeki ötrofik göllerin karakteristiği olan Cyanobacteri patlaması Mayıs ayında gözlenmiştir. Fitoplankton komunite yapısındaki değişimler, klorofil a ve besin tuzu konsantrasyonları gölün hala ötrofik olduğunu göstermiştir.

Anahtar Kelimeler:

besin maddeleri, Türkiye, fitoplankton, ötrofikasyon

Mogan Gölü (Türkiye)’deki fitoplankton komunitesi, besin tuzları ve klorofil a’nın eski ve yeni durumlarının karşılaştırılması

Seasonal changes in phytoplankton community structure, chlorophyll a and some physico-chemical features of Lake Mogan were studied during one-year period, from October 2005 to October 2006. The collected data were compared with the data in previous and recent studies. The nutrient concentrations in the lake were observed to increase with inputs of domestic wastewaters in to the lake in the last years. Chlorophyta and Cyanobacteria in the phytoplankton community in the lake were identified to be dominant together. Merismopedia minima, Microcystis aeruginosa, Sphaerocystis schroeteri and Dictiyosphaerium pulchellum were dominant during the warm period (May – October). Cyanobacterial blooms in the lake were observed in May, which is characteristic for eutrophic lakes in northern temperate region. Changes in phytoplankton community structure, Chl a peak and nutrient concentrations indicated that the trophic level of the lake is still eutrophic.

Keywords:

nutrients, Turkey, phytoplankton, eutrophication,

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Akbulut, N.E. and Akbulut, A. 2002. The Plankton Composition of Lake Mogan in Central Anatolian. Zoology in the Middle East 27: 107-116.
Altınbilek, D., Usul, N., Yazıcıgil, H., Kutoğlu, Y., Merzi, N., Göğüş, M., Doyuran, V. and Günyaktı, A. 1995. Mogan ve Eymir Göllerinin Su Kaynakları (in Turkish). Mogan ve Eymir Gölleri 1. Çevre Kurultayı 13-21.
Altuner, Z. 1984. A qualitative and quantitative studies on the phytoplankton taken from one station in Tortum Lake (in Turkish). DoğaBilim Dergisi A28 (2): 162–182.
Aykulu, G., Obalı, O. and Gönülol, A. 1983. The distribution of phytoplankton at some lakes in the vicinity of Ankara(in Turkish). Doğa Bilim Dergisi 7: 277–288
Brettum, P. and Andersen, T. 2005. The use of phytoplankton as indicators of water quality. NIVA-report SNO 4818-2004.
Burnak, S.L. and Beklioğlu, M. 2000. Macrophyte-dominated Clearwater State of Lake Mogan, Turkish Journal of Zoology, 24, 305-313.
Carpenter, S.R., Ludwig, D. and Brock, W.A. 1999. Management of eutrophication for lakes subject to potentially irreversible change. Ecological Applications, 9 (3): 751-771. doi: 10.1890/1051-0761(1999)009[0751:MOEFLS]2.0.CO;2
Çelik, K. and Ongun, T. 2007. The relationships between certain physical and chemical variables and the seasonal dynamics of phytoplankton assemblages of two inlets of a shallow hypertrophic lake with different nutrient inputs. Environmental Monitoring and Assessment, 124:321-330 . doi: 10.1007/s10661-006-9229-2
DSİ, 1993, Mogan Gölü limnolojik etüt raporu(in Turkish), Ankara, 212s. Eaton, A.A., Franson, M.A.H., Greenberg, A.E. and Clesceri, L.S., 1995, Standard methods for the examination of water and wastewater. 19th ed., APHA, AWWA, WEF, Washington, DC. 1268 pp.
García-Ferrer, I., Camacho, A., Armengol, X., Miracle, M.R. and Vicentle, E. 2003. Seasonal and spatial heterogeneity in the water chemistry of two sewage-affected saline shallow lakes from central Spain. Hydrobiologia, 506–509: 101–110. doi: 10.1023/B:HYDR.0000008593.32525.1d
Gönülol, A. and Obalı, O. 1998. A study on the phytoplankton of Hasan Uğurlu Dam Lake (Samsun-Turkey). Turkish Journal of Biology, 22: 447–461.
Guiry, M.D. and Guiry, G.M. 2010. AlgaeBase version 4.2. Worldwide Electronic Publishing, National University of Ireland, Galway. http://www.algaebase.org. (searched on 6 August 2010).
Huber-Pestalozzi, G. 1961. Das phytoplankton des süßwassers, systematik und biologie, Teil 5: Volvocales (Grünalgen), Ordnung Volvocales. E. schweizerbart’sche verlagsbuchhandlung (Nägele & Obermiller), Stuttgart, 1060 pp.
Hutchinson, G.E. 1967. A treatise on Limnology, II. Introduction to lake biology and the limnoplankton. Wiley Intersci. Pub., New York, 1115 pp.
John, D.M., Whitton, B.A. and Brook A.J. 2003. The Freshwater Algal Flora of the British Isles, An Identification Gıide to Freshwater and Terrestial Algae. Cambridge University Press. Cambridge, 702 pp.
Kılınç, S. 1998. A study on the seasonal variation of phytoplankton in Hafik lake (Sivas, Turkey). Turkish Journal of Botany, 22: 35–41.
Kıvrak, E. and Gürbüz, H. 2005. Seasonal variations in phytoplankton composition and physical-chemical features of Demirdöven Dam Reservoir, Erzurum, Turkey. Biologia, 60/1: 1-9
Komárek, J. and Fott, B. 1983. Das Phytoplankton des Süßwassers, Systematik und Biologie, Teil 7. In: Huber-Pestalozzi, G. (ed.), Chlorophyceae (Grünalgen), Ordnung Chlorococcales. E. Schweizerbart’sche Verlagsbuchhandlung (Nägele u. Obermiller), Stuttgart, 1044 pp.
Krammer, K. and Lange-Bertalot, H. 1986. Süßwasserflora von Mitteleuropa. Bacillariophyceae, Band 2/1, 1. Teil: Naviculaceae, Berlin: Spectrum Academicher Verlag, 876 pp.
Krammer, K. and Lange-Bertalot, H. 1991a Süßwasserflora von Mitteleuropa. Bacillariophyceae, Band 2/3, 3. Teil: Centrales, Fragillariaceae, Eunoticeae, Stuttgart: Gustav Fischer Verlag, 599 pp.
Krammer, K. and Lange-Bertalot, H. 1991b. Süßwasserflora von Mitteleuropa. Bacillariophyceae, Band 2/4, 4. Teil: Achnanthaceae, Kritische Erg.nzungen zu Navicula (Lineolatae) und Gomphonema Gesamtliteraturverzeichnis. Stuttgart: Gustav Fischer Verlag, 439 pp.
Krammer, K. and Lange-Bertalot, H. 1999. Süßwasserflora von Mitteleuropa. Bacillariophyceae, Band 2/2, 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae, Berlin: Spectrum Academicher Verlag, 439 pp.
Lund, J.W.G., Kipling, C. and Gren, D.E. 1958. The inverted microscope method of estimation algal numbers and the statistical basis of estimation by counting. Hydrobiologia, 11: 143-170. doi: 10.1007/BF00007865
Manav, E. and Yerli, S.V. 2008. An assessment on the trophic status of Lake Mogan, Turkey. Fresenius Environmental Bulletin, 17(1) : 3-8.
Mangıt, F. and Yerli, S.V. 2010. Changes along a trophic gradient in Lake Mogan (Turkey): A Shallow Eutrophic Lake, Hacettepe J. Biol. & Chem., 38(1), 41-45.
Naselli-Flores, L. and Barone, R. 2000. Phytoplankton dynamics and structure: a comparative analysis in natural and man-made water bodies of different trophic state. Hydrobiologia, 438: 65–74. doi: 10.1023/A:1004109912119
Nogueira, M.G. 2000. Phytoplankton composition, dominance and abundance as indicators of environmental compartmentalization in Jurumirim Reservoir (Paranapanema River), São Paulo, Brazil. Hydrobiologia, 431: 115–128. doi: 10.1023/A:1003769408757
Obalı, O., Gönülol, A. and Dere, S. 1989. Algal flora in the littoral zone of Lake Mogan. Ondokuz Mayıs University Journal of Science, 1(3): 33-53.
Obalı, O. 1984. Mogan Gölü fitoplanktonunun mevsimsel değişimi(in Turkish). Doğa Bilim Dergisi, A2, 8: 9–104.
Padisák, J., Krienitz, L., Scheffler, W., Koschel, R., Kristiansen, J. and Grigorszky, I. 1998. Phytoplankton succession in the oligotrophic Lake Stechlin (Germany) in 1994 and 1995. Hydrobiologia, 369/370: 179–197. doi: 10.1023/A:1017059624110
Prescott, G.W. 1982. Algae of the Western Great Lake Area. Otto Koeltz Science Pub., Koengstein, Germany, 977 pp.
Rawson, D.S. 1956. Algal indicators of trophic lake types. Limnol Oceanogr., 1: 18–25. doi: 10.4319/lo.1956.1.1.0018
Reckhow, K.H. and Chapra, S.C. 1983. Engineering Approaches for Lake Management, Volume 1: Data Analysis and Empirical Modeling. Butterworth Publishers, Boston.
Reynolds, C.S., Huszar, V., Kruk, C., Naselli-Flores, L. and Melo, S. 2002. Review towards a functional classification of the freshwater phytoplankton. Journal Plankton Research, 24: 417-428. doi: 10.1093/plankt/24.5.417
Round, F.E. 1984. The Ecology of Algae. Cambridge University Press, Cambridge, 664 pp.
Round, F.E, Crawford, R.M. and Mann, D.G. 1990. The Diatoms - Biology & Morphology of the genera. Cambridge University Press, Cambridge, 742 pp.
Ryding, S. and Rast, W. 1989. The control of Eutrophication of Lakes and Reservoir, The Parthenon Publishing Group, 314pp.
Sims, P.A. 1996. An Atlas of British Diatoms. Biopress Ltd., Dorchester, 601 pp.
Salmaso, N. 2002. Ecological patterns of phytoplankton assemblages in Lake Garda: seasonal, spatial and historical features. Journal of Limnology, 61/1: 92-115. doi: 10.4081/jlimnol.2002.95
Tanyolaç, J. and Karabatak, M. 1974. Mogan Gölü’nün Biyolojik ve Hidrolojik Özelliklerinin Tespiti(in Turkish). TÜBİTAK Proje no: VHAG-91.
Temponeras, M., Kristiansen, J. and Moustaka-Guani, M. 2000. Seasonal variation in phytoplankton composition and physical-chemical features of the shallow Lake Doïrani, Macedonia, Greece. Hydrobiologia, 424: 109-122. doi: 10.1023/A:1003957129071
Trifonova, I.S. 1998. Phytoplankton composition and biomass structure in relation to trophic gradient in some temperate and subarctic lakes of north-western Russia and the Prebaltic. Hydrobiologia, 369/370: 99-108. doi: 10.1023/A:1017074615932
Vardaka, E., Moustaka-Gouni, M., Cook, C.M. and Lanaras, T. 2005. Cyanobacterial blooms and water quality in Greek waterbodies. Journal of Applied Phycology, 17: 391–401. doi: 10.1007/s10811-005-8700-8
Wetzel, R.G. 1983. Limnology, Saunders College Publishing, Philadelphia, 767 pp. Willén, E. 1992. Planktonic green algae in an acidification gradient of nutrient-poor lakes. Arch. Protistenkd, 141: 47-64. doi: 10.1016/S0003-9365(11)80048-5
Yarushina, M.I., Guseva, V.P. and Chebotina, M.Y. 2003. Species composition and ecological characteristic of algae from the cooling reservoir of the Beloyarsk nuclear power plant. Russian Journal of Ecology, 34: 20–26. doi: 10.1023/A:1021858820333
Yerli, S.V., Manav, E., Türkecan, O., Mangıt, F., Gürbüz, H. and Kıvrak, E. 2006. İçsularda izleme ve kontrol altyapısının oluşturulması ve pilot alan olarak Mogan Gölü.(In Turkish), HUBAB Proje No: 04A601009, Proje Raporu, Ankara108 pp.