Hydrobiologia

, Volume 753, Issue 1, pp 47–59

Size-based diel migration of zooplankton in Mediterranean shallow lakes assessed from in situ experiments with artificial plants

  • Ülkü Nihan Tavşanoğlu
  • Sandra Brucet
  • Eti Ester Levi
  • Tuba Bucak
  • Gizem Bezirci
  • Arda Özen
  • Liselotte S. Johansson
  • Erik Jeppesen
  • Meryem Beklioğlu
Primary Research Paper

DOI: 10.1007/s10750-015-2192-6

Cite this article as:
Tavşanoğlu, Ü.N., Brucet, S., Levi, E.E. et al. Hydrobiologia (2015) 753: 47. doi:10.1007/s10750-015-2192-6

Abstract

In warm lakes, fish aggregate within macrophytes, thereby weakening the role of these as a daytime refuge for zooplankton and altering the zooplankton size structure, predation pressure, and water clarity. To elucidate the role of macrophytes as a refuge for zooplankton and their effect on zooplankton size distribution, we established three sets of strandardized artificial plant beds in 11 lakes in Turkey with contrasting fish predation risk and turbidity. Zooplankton were sampled within and outside of each plant beds during day and night. Fish, collected overnight in multimesh-sized gillnets, were abundant both inside and outside the artificial plant beds, impoverishing the usefulness of plants as a daytime refuge for particularly large-bodied zooplankton. Zooplankton size diversity was negatively related to fish abundance. Diel vertical migration was the frequent anti-predator avoidance behavior, but reverse migration was also observed when Chaoborus was present. In contrast to the small-bodied taxa, large- and medium-sized taxa showed intraspecific size-based migration (i.e., individuals of different sizes had different migration patterns). Predators influenced the size structure and diel movement of zooplankton, but the response changed with the size of zooplankton and water clarity.

Keywords

Zooplankton community structure Migration Predation size diversity Water clarity 

Supplementary material

10750_2015_2192_MOESM1_ESM.docx (217 kb)
Supplementary material 1 (DOCX 218 kb)

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Ülkü Nihan Tavşanoğlu
    • 1
  • Sandra Brucet
    • 2
    • 3
  • Eti Ester Levi
    • 1
  • Tuba Bucak
    • 1
  • Gizem Bezirci
    • 1
  • Arda Özen
    • 1
    • 4
  • Liselotte S. Johansson
    • 2
  • Erik Jeppesen
    • 2
    • 5
    • 6
  • Meryem Beklioğlu
    • 1
    • 7
  1. 1.Limnology Laboratory, Department of BiologyMiddle East Technical University06800 Çankaya, AnkaraTurkey
  2. 2.Department of Bioscience and the Arctic Centre (ARC)Aarhus University8600 SilkeborgDenmark
  3. 3.Department of Environmental SciencesUniversity of VicVicSpain
  4. 4.Department of Forest EngineeringÇankırı Karatekin University18200 ÇankırıTurkey
  5. 5.Sino-Danish Centre for Education and Research (SDC)BeijingChina
  6. 6.Greenland Climate Research Centre (GCRC)Greenland Institute of Natural Resources3900 NuukGreenland
  7. 7.Kemal Kurdaş Ecological Research and Training Stations, Lake EymirMiddle East Technical University06400 Çankaya, AnkaraTurkey