On the occurrence of males and production of ephippial eggs in populations of Daphniopsis studeri (Cladocera) in lakes of the Vestfold and Larsemann Hills, East Antarctica

Populations of the cladoceran Daphniopsis studeri Ruhe in freshwater and brackish lakes of eastern Antarctica have been thought to consist solely of females that reproduce parthenogenetically by the production of ameiotic subitaneous eggs. This note reports the presence of male D. studeri and the pr...

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Bibliographic Details
Published in:Polar Biology
Main Authors: Gibson, JAE, Dartnall, HJG, Swadling, KM
Format: Article in Journal/Newspaper
Language:English
Published: Springer-Verlag 1998
Subjects:
Biological Sciences
Ecology
Freshwater Ecology
East Antarctica
Larsemann Hills
Vestfold
Antarc*
Antarctica
Polar Biology
Online Access:https://doi.org/10.1007/s003000050227
http://ecite.utas.edu.au/11083
Description
Summary:Populations of the cladoceran Daphniopsis studeri Ruhe in freshwater and brackish lakes of eastern Antarctica have been thought to consist solely of females that reproduce parthenogenetically by the production of ameiotic subitaneous eggs. This note reports the presence of male D. studeri and the production of ephippial (sexual) eggs in a number of lakes of the Vestfold and Larsemann Hills, which indicate the possibility of sexual reproduction within these populations.

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