Prof. Dr. Meryem BEKLİOĞLU

Middle East Technical University, Department of Biological Sciences, 06800 Ankara/TURKEY

Office Room: 136

Tel: +90 312 210 5154

Fax: +90 312 210 7976

E - Mail: meryem[-at-]metu.edu.tr

Web: http://www.limnology.metu.edu.tr

Education: 1991-1995 PhD. In Freshwater Ecology “Whole Lake and Mesocosm Studies on the Role of Nutrients and Zooplankton Grazing in a System of Shallow and Deep Lakes” Environmental and Evolutionary Biology Department, The University of Liverpool, UK, (Prof. Brian Moss, the supervisor)
1988-1991 MSc. In Population Genetics “Determination of morphometric variation within and among six species of Tsetse fly, Glossina by multivariate statistical analyses” Institute of Science, Department of Biology, METU, Ankara
1984-1988 BSc. In Biology, METU, Faculty of Arts and Science, Department of Biology, Ankara

Research Interest: Aquatic Ecology especially ecology of shallow lakes with wetlands and behavioural ecology of aquatic organisms

Description of research activities: Interactions between physical, chemical and biological processes in lakes, and the influence of human activities on these processes, eutrophication and biomanipulation as a restorative measure are within main research interest. To investigate governing mechanisms especially the differential role of top-down control and hydrology in structuring periphyton, macrophytes, phytoplankton, zooplankton, benthic macroinvertebrates and fish in shallow lakes are among the scopes. Chemical communication between the fish and the prey, Daphnia, behavioural ecology of Daphnia and ecotoxicology are among main research activities.

Selected Publications:

International Publications (Book Chapters)

• Meerhoff, M., F. Teixeira-de Mello, C. Kruk, C. Alonso, I. González-Bergonzoni, J. P. Pacheco, M. Arim, M. Beklioglu, S. Brucet, G. Goyenola, C. Iglesias, G. Lacerot, N. Mazzeo, S. Kosten, & E. Jeppesen. 2013. Environmental warming in shallow lakes: a review of effects on community structure as evidenced from space-for-time substitution approach. VOL 46, PT 1 Book Series: Advances in Ecological Research Volume: 46 Pages: 259-349
• Beklioglu M., M. Meerfhoff , M. Sondergaard & E. Jeppesen , 2011. Eutrophication and Restoration of Shallow Lakes from a cold Temperate to a warm Mediterranean and a (Sub) Tropical climate. In AA Ansari-S Singh-GR Lanza-W Rast (Editors). Eutrophication: Causes, Consequences and Control. Springer:91-108, DOI: 10.1007/978-90-481-9625-8_4
• Beklioglu, M. 2002. Does Biomanipulation Work for Warm-Temperate Lakes? Lake Eymir First Case Study in Turkey. NATO, Advanced Research Workshop: The Issyk-Kul Lake: Evaluation of the Environmental State and its Remediation. Edited by J. Klerkx and B. Imanackunov. NATO Science Series, IV. Earth and Environmental Sciences vol:13, 207-215

49. Hering, D; Carvalho, L; Argillier, C; Beklioglu, M; Borja, A; Cardoso, AC; Duel, H; Ferreira, T; Globevnik, L; Hanganu, J. 2015 Managing aquatic ecosystems and water resources under multiple stress - An introduction to the MARS project. SCIENCE OF THE TOTAL ENVIRONMENT 503: 10-21
48. Karl E. Havens, Ricardo Motta Pinto-Coelho, Meryem Beklioglu, Kirsten S. Christoffersen, Erik Jeppesen, Torben L. Lauridsen, Asit Mazumder, Ginette Methot, Bernadette Pinel Alloul, U. Nihan Tavşanoglu, Şeyda Erdogan, Jacobus Vijverberg. Temperature effects on body size of freshwater crustacean zooplankton from Greenland to the tropics. In presss Hydrobiologia
47. Ülkü Nihan Tavşanoğlu, Sandra Brucet, Eti Ester Levi, Tuba Bucak, Gizem Bezirci, Arda Özen, Liselotte S. Johansson, Erik Jeppesen & Meryem Beklioğlu. Size-based diel migration of zooplankton in Mediterranean shallow lakes assessed from in situ experiments with artificial plants. In press Hydrobiologia


46. Ayşe İdil Çakıroğlu, Ü. Nihan Tavşanoğlu, Eti E. Levi, Thomas A. Davidson, Tuba Bucak, Arda Özen, Gürçay K. Akyıldız, Erik Jeppesen and Meryem Beklioğlu. Relatedness between Contemporary Cladocera and Surface Sedıment Sub-Fossıl Cladocera Assemblages in Turkısh Lakes. Journal of Paleolimnology. 52 (4) Pages: 367-383
45. Arda Özen, Tuba Bucak, Ülkü Nihan Tavşanoğlu, Ayşe İdil Çakıroğlu, Eti Ester Levi, Jan Coppens, Erik Jeppesen, Meryem Beklioğlu. Water level and fish-mediated cascading effects on the microbial community in eutrophic warm shallow lakes: a mesocosm experiment. 2014. Hydrobiologia. 740: 25-35
44. Landkildehus, F., Søndergaard M., Beklioglu M., Adrian R., Angeler D., Hejzlar J., Papastergıadou E., Zingel P., Çakıroğlu A., Scharfenberger U., Drakare S., Nõges T., Šorf M., Stefanıdıs K., Tavşanoğlu Ü., Trıgal C., Mahdy A., Papadakı C., Tuvıkene L., Larsen S.E., Kernan M. & Jeppesen E. (2014) Climate Change Effects On Shallow Lakes: Design And Preliminary Results Of A Cross‐European Climate Gradient Mesocosm Experiment. Estonian Journal of Ecology, 63(2), 71-89
43. Eti E. Levİ, Ayşe İ. Çakıroğlu, Tuba Bucak, Bent V. Odgaard, Thomas A. Davidson, Erik Jeppesen, Meryem Beklİoğlu. 2014 Similarity between contemporary vegetation and plant remains in the surface sediment in Mediterranean lakes. 2014. Freshwater Biology. 59:724-736
42. Erik Jeppesen, Mariana Meerhoff, Thomas A. Davidson, Dennis Trolle, Martin Søndergaard, Torben L. Lauridsen, Meryem Beklioğlu, Sandra Brucet, Pietro Voltah, Iván González-Bergonzonia, & Anders Nielsena. 2014. Climate change impacts on lakes: an integrated ecological perspective based on a multi-faceted approach, with special focus on shallow lakes. J. of Limnology. 73(s1): 88-111


41. Arda Özen, Michal Šorf, Carolina Trochine, Lone Liboriussen, Meryem Beklioglu, Martin Søndergaard, Torben L. Lauridsen, Liselotte Sander Johansson & Erik Jeppesen. Temperature and nutrient effects on freshwater microbial and planktonic communities in climate warming experimental ponds after seven years of incubation. Freshwater Biology,- 58:3, 483-493


40. Ü. Nihan Tavsanoğlu, A. Idil Çakıroğlu, Seyda Erdoğan, Mariana Meerhoff, Erik Jeppesen, Meryem Beklioğlu. Sediment – not plants – is the prefered refuge for Daphnia against fishpredation in Mediterranean shallow lakes: an experimental approach. Freshwater Biology- 57(4): 795-802.
39. Tuba Bucak, Ece Saraoğlu, Erik Jeppesen & Meryem Beklioğlu. The role of water level for macrophytes growth and trophic interactıons ın Mediterreanean shallow lakes: a mesocosms experiment with and without fish. Freshwater Biology 57(8): 1631-1642
38. Gizem Bezirci, Sara B. Akkas, Karsten Rinke, Feriha Yildirim, Zeynep Kalaylıoğlu, Feride Severcan, and Meryem Beklioglu. Impacts of salinity and fish-exuded kairomone on the survival and molecular profile of Daphnia pulex” by. Ecotoxicology. 21: 601–614


37. Erik Jeppesen • Brian Kronvang • Jørgen E. Olesen • Joachim Audet •Martin Søndergaard • Carl C. Hoffmann • Hans E. Andersen • Torben L. Lauridsen • Lone Liboriussen • Søren E. Larsen • Meryem Beklioglu • Mariana Meerhoff • Arda Ozen • Korhan Ozkan. 2011 Climate change effects on nitrogen loading from cultivated catchments in Europe: implications for nitrogen retention, ecological state of lakes and adaptation Hydrobiologia 663:1–21


36. Meerhoff, M, Beklioglu, M, Burks, R, Garcia-Rodriguez, F, Mazzeo, N and Moss, B. Structure and Function of World Shallow Lakes: Proceedings from the 6th Shallow Lakes Congress, Punta del Este, Uruguay, 23-28 November, 2008 – Preface. Hydrobiogiologia, 646 (1): 1-3
35. Arda Özen, Burcu Karapinar, Ismail Küçük, Erik Jeppesen, Meryem Beklioglu. 2008. Mass balance of nutrients in a system of Mediterranean shallow lakes. Hydrobiologia 646 (1): 61-72
34. Beklioglu, M., Banu Akkaş, Ozcan, E, G. Bezirci & Togan, I.2010 Fish kairomones enhance stresses of 4-nonylphenol: survival, morphology and life history traits of Daphnia magna straus. Ecotoxicology 19 (5): 901-910
33. Korhan Özkan, Erik Jeppesen, Liselotte S. Johansson & Meryem Beklioglu. The response of periphyton and submerged macrophytes to nitrogen and phosphorus loadings in shallow warm lakes: a mesocosm experiment.2010 Freshwater Biology 55, 463–475
32. S. Banu Akkaş, Ayse O. Kepenek, Meryem Beklioglu, and Feride Severcan Molecular approach to the chemical characterization of fish-exuded kairomone: A Fourier transform infrared spectroscopic study. 2010. Aquatic Sciences.72: 71-83


31. Özge Karabulut Doğan, Zuhal Akyürek & Meryem Beklioglu. 2009. Mapping and identification of submerged plants in a shallow lake, Turkey using Quickbird satellite data. Journal of Environmental Management : 90: 2138-2143
50. Erik Jeppesen, Brian Kronvang, Mariana Meerhoff, Martin Søndergaard, Kristina M. Hansen, Hans E. Andersen, Torben L. Lauridsen ,Meryem Beklioglu, Arda Ozen & Jørgen E. Olesen. 2009. Climate change effects on runoff, phosphorus loading and lake ecological state, and potential adaptations. Journal of Environmental Quality, 38: 1930-1941
29. Moss, B., Hering, D., Green, A.J., Aidoud, A., Becares, E., Beklioglu, M., Bennion, H., Boix, D., Brucet, S., Carvalho, L., Clement, B., Davidson, T., Declerck, S., Dobson, M., van Donk, E., Dudley, B., Feuchtmayr, H., Friberg, N., Grenouillet, G., Hillebrand, H., Hobaek, A., Irvine, K., Jeppesen, E., Johnson, R., Jones, I., Kernan, M., Lauridsen, T.L., Manca, M., Meerhoff, M., Olafsson, J., Ormerod, S., Papastergiadou, E., Penning, W.E., Ptacnik, R., Quintana, X., Sandin, L., Seferlis, M., Simpson, G., Triga, C., Verdonschot, P., Verschoor, A.M., Weyhenmeyer, G.A. 2009, 'Climate change and the future of freshwater biodiversity in Europe: a primer for policy-makers', Freshwater Reviews, vol. 2, pp. 103-130.


28. Beklioglu, M. & C. O. Tan. 2008. Drought complicated restoration of a Mediterranean shallow lake by biomanipulation. Archive für Hydrobiologie/ Fundamentals of Applied Limnology: 171:105-118
27. Meryem Beklioglu, Ayse Gul Gozen, Feriha Yıldırım, Pelin Zorlu & Sertac Onde. 2008. Impact of food concentration on diel vertical migration behaviour of Daphnia pulex under fish predation risk. Hydrobiologia 614:321-327


26. Meryem Beklioglu, Susana Romo, Ifigenia Kagalou, Xavier Quintana, Eloy Bécares. 2007. State of the art in the functioning of shallow Mediterranean Lakes: workshop conclusion. Hydrobiologia, 196: 317-326
25. Jeppesen, E., M. Søndergaard, T.L. Lauridsen, B. Kronvang, M. Beklioglu, E. Lammens, J. Köhler, A.-M. Ventelä, M. Tarvainen & I. Tátrai, 2007: Danish and some other European experiences in managing shallow lakes. Lake & Reservoir Management: 23:439-451
24. Korkusuz, E. A, Beklioglu, M. & Demirer G. N. 2007. Use of blast furnace granulated slag as a substrate in vertical flow reed beds: Field applications. Bioresource Technology. 98: 2089-2101


23. Beklioglu, M. Telli, M. Gozen, A. 2006.Fish And Mucus-Dwelling Bacteria Interact To Produce A Kairomone That Induces Diel Vertical Migration In Daphnia. Freshwater Biology 51: 2200-2206
22. Beklioglu, M. Altınayar, G. Tan C.T. 2006. Water level control over submerged macrophyte development in five Mediterranean Turkey. Archive für Hydrobiologie, 166 (4): 535-556
21. Can Tan & M. Beklioglu. 2006. Modelling complex nonlinear responses of shallow lakes to fish and hydrology using artificail neural networks. Ecological Modelling, 196.183-194
20. Can Ozan Tan, Uygar Özesmi, Meryem Beklioglu, Esra Per, Bahtiyar Kurt. 2006. Predictive models in ecology: comparision of performances and assessment of applicability. Ecological Informatics, 1: 195-21
19. Akhmat, M. U., Beklioglu M., Ergenc T. & Tkachenco, V. I. 2006. An impulsive ratio-dependent predator-prey system with diffusion. Nonlinear Analysis Series B: Real World Applications
18. Beklioglu, M., Cetin, A., Zorlu, P. Ay-Zog, D. 2006. Role of Planktonic Bacteria in Biodegradation of Fish-exuded Kairomone in Laboratory bioassays of Diel Vertical Migration. Archive für Hydrobiologie 165: 89-104


17. Håkan Sandsten, Beklioglu, M and Ince, Ö. 2005. Effects of large herbivores and periphyton on the spring growth of Potamogeton pectinatus in Lake Mogan, Turkey. Hydrobiologia. 537 (1-3): 125-135
16. Muluk, Ç. & Beklioglu, M. 2005 Lack of a typical diel vertical migration: varying role of water clarity, food, and dissolved oxygen in Lake Eymir, Turkey. Hydrobiologia 537 (1-3): 139-149
15. Brian Moss, T. Barker, D. Stephen, A. Williams, D. Balayla, M. Beklioglu & L. Carvalho. 2005 Shallow and deep lakes - oligotrophication in a lowland catchment? Freshwater Biology. 50:1687-170
14. Korkusuz, E. A., Beklioğlu, M., Demirer, G.N. 2005.Comparison of the treatment performances of blast furnace salt-based and gravel-based vertical flow wetlands operated identically for domestic wastewater treatment in Turkey. Ecological Engineering, 24 (3):165-198
13. Can Tan & M. Beklioglu. 2005. Catastrophic-like shifts in two Turkish lakes: a modeling approach. Ecological Modelling, 183: 425-434


12. Coops, H. M., Beklioglu and T. L. Crisman. 2003. The role of water-level fluctuations in shallow lake ecosystems – workshop conclusions. Hydrobiologia. 506(1):23-27
11. Jingjie Zhang , Sven Erik Jørgensen, Can Ozan Tan & Meryem Beklioglu. 2003 A Structurally Dynamic Modelling Lake Mogan, Turkey as a case study. Ecological Modelling. 164:2-3 103-120
10. Jingjie Zhang , Sven Erik Jørgensen, Meryem Beklioglu, Ozlem Ince. 2003 Hysteresis in vegetation shift––Lake Mogan prognoses. Ecological Modelling. 164: 2-3, 227-238
9. Beklioglu, M., İnce, Ö. & Tüzün, İ. 2003. Restoration of Eutrophic Lake Eymir, Turkey, by Biomanipulation Undertaken Following a Major External Nutrient Control I: Hydrobiologia 489: 93-105


8. Beklioglu, M., L. Carvalho & B. Moss. 1999 Rapid recovery of a shallow hypertrophic lake following sewage effluent diversion: lack of chemical resilience. Hydrobiologia 412:5-15
7. Beklioglu, M. & Jeppesen, E. 1999. Behavioural response of Eurycercus lamellatus (Ö.F Müller) to different food sources and to fish cues. Aquatic Ecology 33:167-173


6. Beklioglu, M. & Moss, B. 1998. The effects of tench (Tinca tinca (L.)) and sticklebacks (Gasterosteus aculeatus L.) on planktonic and benthic communities in mesocosms in a shallow lake. Aquatic Ecology. 32:229-240


5. Moss, B., M. Beklioglu, L. Carvalho, S. Kilinc, S. McGowan & D. Stephen. 1997. Vertically challenged limnology; contrasts between deep and shallow lakes. Hydrobiologia 342/343 257-267


4. Beklioglu, M., & B. Moss. 1996. Mesocosm experiments on the interaction of sediment influence, fish predation and aquatic plants on the structure of phytoplankton and zooplankton communities. Freshwater Biology. 36:315-325
3. Beklioglu, M. & B. Moss. 1996. Existence of a macrophyte-dominated clear water state over a very wide range of nutrient concentrations in a small shallow lake. Hydrobiologia.337:1-14


2. Carvalho, L., Beklioglu, M. & Moss, B. 1995. Changes in a deep lake following sewage diversion: a challenge to the orthodoxy of external phosphorus control as a restoration strategy. Freshwater Biology. 34:399-410
1. Beklioglu, M. & Moss, B. 1995. The impact of pH on interactions among phytoplankton algae, zooplankton and perch (Perca fluviatilis) in a shallow, fertile lake. Freshwater Biology. 33:497-509

Graduate program affiliation: Biology & Biotechnology