, Volume 537, Issue 1–3, pp 125–133 | Cite as

Absence of typical diel vertical migration in Daphnia: varying role of water clarity, food, and dissolved oxygen in Lake Eymir, Turkey

  • Cagri B. Muluk
  • Meryem BekliogluEmail author


Diel vertical migration (DVM) is a complex and dynamic behaviour against predation because the reaction of migrating organisms to light intensity plays a primary role, but is modified by other factors. In the relatively shallow but thermally stratified Lake Eymir, Daphnia pulex de Geers utilized vertical refugia afforded by the hypolimnion during both day and night. Differences in general vulnerability to fish predation determined the differences in their mean residence depths (MRDs) of different population categories such as most conspicuous and vulnerable individuals of adult with eggs inhabited the deepest depth, whereas juveniles stayed close the thermocline. In late spring, profoundly high amplitude of displacement within the hypolimnion, probably due to the hypolimnion being well-lit and relatively well-oxygenated for the fish and rather unsafe for the large-sized daphnids, was recorded. Therefore, the large-sized daphnids daytime refuge was close to the bottom whereas at night they moved upward to benefit from warmer water temperature along with food availability in the presence of fish predation but still remained below the thermocline. In summer, the insignificant amplitude of the hypolimnetic, which later became epilimnetic, displacements were probably due to the near-anoxic condition found below the thermocline. This might have deterred the fish, thus providing a safer refuge for daphnids in the below thermocline, which afterwards became the above thermocline. Low oxygen availability was regarded as the summer proximate factor. The abundant food and warmer water conditions found in the below/above thermocline also accounted for absence of DVM in summer. Consequently, this study suggests that DVM by Daphnia is an adaptation that is plastic to changing environmental conditions.


birth rate death rate predation pressure water temperature 


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  1. Beklioglu, M., Burnak, S.L., Ince, O. 2000Benthi-Planktivorous fish-induced water quality before biomanipulation in Eymir GoluTurkish Journal of Zoology24315326Google Scholar
  2. Beklioglu, M., Ince, O., Tuzun, I. 2003Restoration of Eutrophic Lake Eymir, Turkey, by biomanipulation undertaken after a major external nutrient control IHydrobiologia48993105Google Scholar
  3. Dawidowicz, P., Loose, C.J. 1992Metabolic costs during predator-induced diel vertical migration in DaphniaLimnology and Oceanography3715891595CrossRefGoogle Scholar
  4. DeMeester, L., Weider, L.J., Tollrian, R. 1995Alternative anti-predator defences and genetic polymorphism in a pelagic prey-predator systemNature378483485Google Scholar
  5. Dodson, S.I. 1990Predicting diel vertical migration of zooplanktonLimnology and Oceanography3511951200Google Scholar
  6. Flik, B.J., Ringelberg, J. 1993Influence of food availability on the initiation of diel vertical migration (DVM) in Lake MaarsseveenArchiv für Hydrobiologie, Beihefte Ergebnisse der Limnologie395765Google Scholar
  7. Geldiay R., 1949. Comparative Study of the Macro and Micro Fauna of Cubuk Dam and Lake Eymir. University of Ankara, Journal of Faculty of Science, Vol. 2 (in Turkish)Google Scholar
  8. Gliwicz, M. 1986Predation and evolution of vertical migration in zooplanktonNature320746748Google Scholar
  9. Han, B.P., Straskraba, M. 2001Control mechanisms of diel vertical migration: theoretical assumptionsJournal of Theoretic Biology210305318Google Scholar
  10. Hanazato, T. 1992Direct and indirect effect of low-oxygen layers on lake zooplankton communitiesArchiv für Hydrobiologie, Beihefte Ergebnisse der Limnologie358798Google Scholar
  11. Jeppersen, A-M., Christoffersen, K. 1987Measurements of Chlorophyll-a from phytoplankton using ethyl alcohol as extraction solventArchiv fur Hydrobiologie109445454Google Scholar
  12. Lampert, W. 1978A field study on the dependence of the fecundity of Daphnia spec. on food concentrationOecologia36363370Google Scholar
  13. Lampert, W. 1989The adaptive significance of diel vertical migration of zooplanktonFunctional Ecology32127Google Scholar
  14. Laars, S., Boersma, M., Spaak, P. 2000How do migrating daphnids cope with fish predation risk in the epilimnion under anoxic conditions in the hypolimnion?Journal of Plankton Research2214111418Google Scholar
  15. Moss, B., 1998. The Ecology of Freshwaters, Man and Medium, Past to Future, 3rd edn. Blackwell ScienceGoogle Scholar
  16. Paloheimo, J.E. 1974Calculation of instantaneous birth rateLimnology and Oceanography19692694CrossRefGoogle Scholar
  17. Pijanowska, J., Dawidowicz, P. 1987The lack of vertical migration in Daphnia: the effect of homogenously distributed foodHydrobiologia148175181Google Scholar
  18. Reynolds, C.S. 1984The Ecology of Freshwater PhytoplanktonCambridge University pressCambridge.Google Scholar
  19. Ringelberg, J. 1993Photo behavioural component of diel vertical migration in a pelagic DaphniaArchiv für Hydrobiologie, Beihefte Ergebnisse der Limnologie394555Google Scholar
  20. Sillah, M. 2002The Role of Submerged Macrophytes in Stabilising Water Clarity and Migration Pattern of Dominant Zooplankton in Lake EymirTurkey. MSc. Thesis, Middle East Technical UniversityAnkaraGoogle Scholar
  21. Stich, H.B., Lampert, W. 1981Predator evasion as an explanation of diurnal vertical migration by zooplanktonNature293396398Google Scholar
  22. Stich, H.B., Lampert, W. 1984Growth and reproduction of migrating and non-migrating Daphnia species under simulated food and temperature conditions of diurnal vertical migrationOecologia61192196Google Scholar
  23. Weider, L.J., Lampert, W. 1985Differential response of Daphnia genotypes to oxygen stress: respiration rates, hemoglobin content and low-oxygen toleranceOecologia65487491Google Scholar
  24. Winder, M., P. Spaak, W. M. Mood, 2004. Trade-offs in Daphnia habitat selection. Ecology (in press)Google Scholar

Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Biology DepartmentMiddle East Technical UniversityAnkaraTurkey

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