Daphnia galeata

Daphnia galeata is a small species of planktonic crustaceans. It lives in freshwater environments across a large area of the Northern Hemisphere, mostly in lakes.

Daphnia galeata
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Branchiopoda
Order:	Cladocera
Family:	Daphniidae
Genus:	Daphnia
Subgenus:	Daphnia
Species:	D. galeata
Binomial name
Daphnia galeata G. O. Sars, 1864 [1]
Subspecies
D. g. galeata G. O. Sars, 1864 D. g. mendotae Birge, 1918

D. galeata comprises two subspecies: D. g. galeata, found in the Old World, and D. g. mendotae, named after Lake Mendota near Madison, Wisconsin, in the New World. D. g. mendotae may be a homoploid hybrid taxon.[2] In the lower Great Lakes, the populations are mostly hybrids of the European and American subspecies.[3]

References

1. "Daphnia galeata G. O. Sars, 1864". Integrated Taxonomic Information System. Retrieved June 1, 2011.
2. Derek J. Taylor, Paul D. N. Herbert & John K. Colbourne (1996). "Phylogenetics and evolution of the Daphnia longispina group (Crustacea) based on 12S rDNA sequence and allozyme variation" (PDF). Molecular Phylogenetics and Evolution. 5 (3): 495–510. doi:10.1006/mpev.1996.0045. PMID 8744763.
3. George W. Cox (1999). "Northern temperate lakes: chaos along the food chain". Alien Species in North America and Hawaii: Impacts on Natural Ecosystems. Island Press. pp. 67–81. ISBN 9781559636803.