Growth and survival responses of a tropical Daphnia (Daphnia lumholtzi) to cell-bound microcystins

Eutrophic tropical freshwater bodies often have cyanobacterial blooms that last throughout the year and some of these blooms may produce compounds that are toxic to Daphnia. Nevertheless, tropical species like Daphnia lumholtzi continue to remain abundant in the presence of such blooms. We conducted...

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Bibliographic Details
Published in:Journal of plankton research 2009-08, Vol.31 (8), p.827-835
Main Authors: Semyalo, Ronald, Rohrlack, Thomas, Larsson, Petter
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
Biological poisons
Blooms
Cell survival
Cyanobacteria
Daphnia
Daphnia lumholtzi
Food
Fresh water
Freshwater
Freshwater crustaceans
Fundamental and applied biological sciences. Psychology
General aspects
Growth
Inland water environment
Microcystins
Microcystis aeruginosa
Survival
Synecology
Tropical environment
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Summary:Eutrophic tropical freshwater bodies often have cyanobacterial blooms that last throughout the year and some of these blooms may produce compounds that are toxic to Daphnia. Nevertheless, tropical species like Daphnia lumholtzi continue to remain abundant in the presence of such blooms. We conducted an experiment on the growth and survival of D. lumholtzi. We fed a toxic cyanobacteria Microcystis aeruginosa PCC 7806 to study the response of D. lumholtzi to cell-bound microcystins. Daphnia lumholtzi showed poor growth and survival in the presence of M. aeruginosa PCC 7806 both with and without microcystins. Survival and growth improved significantly when M. aeruginosa comprised
ISSN:0142-7873
1464-3774
DOI:10.1093/plankt/fbp032