Eurytemora

Eurytemora
Eurytemora affinis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Copepoda
Order:	Calanoida
Family:	Temoridae
Genus:	Eurytemora Giesbrecht, 1881[1]
Type species
Eurytemora affinis
Synonyms[1]
Temorella Claus, 1881

Eurytemora is a genus of copepods in the family Temoridae.^[1]

Directional selection is one type of natural selection where individuals with characteristics at one end of a continuum are favored, hence increasingly shifting the overall mean of that trait within the population. For example, in the copepod Eurytemora affinis, the populations that had invaded freshwater environments experienced directional selection for improved osmoregulatory ability, such that individuals were able to cope better with lowered levels of salinity and therefore survive and reproduce more successfully.

1. ^ ^{a b c d} Lee, Catherine E., and John D. McPhail. "Directional Selection and Rapid Adaptation in Eurytemora affinis." Journal of Evolutionary Biology, vol. 17, no. 6, 2004, pp. 1270–1277.

Czajka, Frank, et al. "Rapid Evolution of Salinity Tolerance in the Invasive Copepod Eurytemora affinis." Evolutionary Applications, vol. 6, no. 3, 2013, pp. 368–377.

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