Environmental Biology of Fishes

, Volume 70, Issue 3, pp 203–209

Homing and Daytime Tidal Movements of Juvenile Snappers (Lutjanidae) between Shallow-Water Nursery Habitats in Zanzibar, Western Indian Ocean

  • Martijn Dorenbosch
  • Marieke C. Verweij
  • Ivan Nagelkerken
  • Narriman Jiddawi
  • Gerard van der Velde
Article

DOI: 10.1023/B:EBFI.0000033336.10737.f5

Cite this article as:
Dorenbosch, M., Verweij, M.C., Nagelkerken, I. et al. Environmental Biology of Fishes (2004) 70: 203. doi:10.1023/B:EBFI.0000033336.10737.f5

Abstract

We studied daily tidal movements of tagged juvenile Lutjanus fulviflamma and Lutjanus ehrenbergii between two adjacent habitats, a subtidal channel and shallow tidal notches in the fossil reef terrace, in a shallow marine bay on Zanzibar Island (Tanzania). Due to a large tidal range, the notches were dry at low-tide and were only accessible to the snappers at high-tide. Of the resighted individuals, 48% showed clear movement between the two habitats, orientated in a direction perpendicular to the tidal currents. Individuals resighted more than once showed site fidelity, indicating homing in both the channel and the notches. We suggest that a significant part of this population of juvenile snappers may move from a low-tide resting habitat to a high-tide resting habitat during the daytime, perhaps to avoid predation by larger predators that may enter the channel at high-tide.

coral reef fishes migration site fidelity seagrass beds tidal channels marine bay 

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Martijn Dorenbosch
    • 1
  • Marieke C. Verweij
    • 1
  • Ivan Nagelkerken
    • 1
  • Narriman Jiddawi
    • 2
  • Gerard van der Velde
    • 1
  1. 1.Department of Animal Ecology & EcophysiologyUniversity of NijmegenNijmegenThe Netherlands
  2. 2.Institute of Marine SciencesZanzibarTanzania

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