IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Phenotypic plasticity in life-history traits and feeding appendages in two species of Daphnia fed a natural phytoplankton
Reinikainen, M.; Repka, S. (2003). Phenotypic plasticity in life-history traits and feeding appendages in two species of Daphnia fed a natural phytoplankton. Aquat. Ecol. 37(4): 409-415
In: Aquatic Ecology. Springer: Dordrecht; London; Boston. ISSN 1386-2588, more
Peer reviewed article  

Available in  Authors 

Keywords
    Feeding behaviour; Feeding experiments; Food availability; Life history; Phenotypes; Phytoplankton; Daphnia mendotae; Daphnia pulicaria; USA, New York, Oneida L. [Marine Regions]; Fresh water

Authors  Top 
  • Reinikainen, M.
  • Repka, S.

Abstract
    The ability of two cladoceran species, Daphnia pulicaria and D. mendotae, to utilize a natural phytoplankton assemblage dominated by cyanobacteria was investigated experimentally. Reference animals were fed high quality green algae. The natural phytoplankton assemblage originated from Oneida Lake (NY, USA). Both cladoceran species occur in the lake, but their densities vary temporally. As expected, lake phytoplankton were a poor food source. Fecundity decreased, and age at first reproduction and offspring size increased. The magnitude of these effects varied between and within species. The increase in offspring size differs from studies using toxic cyanobacterial strains, but agrees with expectations on adaptive responses to low food availability. Both species performed equally on the lake phytoplankton, but D. pulicaria appeared to be the superior species in the high quality food treatment.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors