Eurytemora Pacifica

''Eurytemora'' is a genus of copepods in the family Temoridae.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.

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.

Species

The World Register of Marine Species lists the following species:
*'' Eurytemora affinis'' (Poppe, 1880)
*'' Eurytemora americana'' Williams, 1906
*'' Eurytemora arctica'' Wilson M.S. & Tash, 1966
*'' Eurytemora asymmetrica'' Smirnov, 1935
*'' Eurytemora bilobata'' Akatova, 1949
*'' Eurytemora brodskyi'' Kos, 1993
*'' Eurytemora canadensis'' Marsh, 1920
*'' Eurytemora carolleeae'' Alekseev & Souissi, 2011
*'' Eurytemora caspica'' Sukhikh & Alekseev, 2013
*'' Eurytemora clausii'' (Hoek, 1876)
*'' Eurytemora composita'' Keiser, 1929
*'' Eurytemora foveola'' Johnson M.W., 1961
*''Eurytemora gracilicauda'' Akatova, 1949
*'' Eurytemora gracilis'' (Sars G.O., 1898)
*'' Eurytemora grimmi'' (Sars G.O., 1897)
*'' Eurytemora herdmani'' Thompson I.C. & Scott A., 1897 in Thompson, Scott & Herdman, 1897
*'' Eurytemora kurenkovi'' Borutsky, 1961
*'' Eurytemora lacinulata'' (Fischer, 1853)
*'' Eurytemora lacustris'' (Poppe, 1887)
*'' Eurytemora minor'' Behning, 1938
*'' Eurytemora pacifica'' Sato, 1913
*''Eurytemora raboti'' Richard, 1897
*''Eurytemora richingsi'' Heron & Damkaer, 1976
*''Eurytemora velox'' (Lilljeborg, 1853)
*''Eurytemora wolterecki'' Mann, 1940
*''Eurytemora yukonensis'' Wilson M.S., 1953

References

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.

Temoridae
Copepod genera

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