Title: Diel vertical migration of zooplankton in an Amazonian varzea lake (Laguna Bufeos, Bolivia)
Authors: Rejas, Danny ×
De Meester, Luc
Ferrufino, Lena
Maldonado, Mabel
Ollevier, Frans #
Issue Date: Apr-2007
Publisher: Taylor & francis ltd
Series Title: Studies on neotropical fauna and environment vol:42 issue:1 pages:71-81
Abstract: We studied diel vertical migration (DVM) of a variety of zooplanktonic taxa. Our results fit the predictions of the predator avoidance hypothesis, with larger taxa performing normal migrations to avoid fish predation and smaller taxa performing reversed migrations, probably to avoid predation by Chaoborus. Cladocerans and adults of copepods displayed normal DVM, whereas cyclopoid copepodites did not migrate. Five rotifer taxa migrated in a normal pattern whereas four taxa migrated in a reverse pattern. Our results suggest that during the day microcrustaceans moved close to the bottom, while rotifers showed narrower migration amplitudes. Larvae of the invertebrate predator Chaoborus displayed strong normal DVM, and appeared to synchronize its life cycle with the lunar cycle, with mass emergence of adults around New Moon.
ISSN: 0165-0521
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science