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JOURNAL OF PLANKTON RESEARCH | VOLUME 18 | NUMBER 2 | PAGES 197-202 | 1996
© Oxford University Press
research-article |
Daphnids respond to algae-associated odours
Department of Aquatic Ecology, University of Amsterdam Kruislaan 320, 1098 SM Amsterdam, The Netherlands
Received on July 31, 1995; accepted on October 13, 1995 Using a Y-tube olfactometer, it was found that Daphnia galeata x hyalina moves to the arm with odour from either of two edible algal species (Scenedesmus acuminatus and Oscillatoria limnetica) rather than to the alternative arm with clean water. However, no differential response was observed when odours of the toxic cyanobacterium (Oscillatoria agardhu) were tested. We suggest that odours associated with edible algae attract Daphnia whereas non-edible algae do not elicit attraction of Daphnia.
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