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Hyperacanthomysis longirostris
Image courtesy of Tricia Bippus, California Department of Fish and Wildlife, IEP Diet and Condition Study
Hyperacanthomysis longirostris
Taxonomic Group: Crustaceans-Mysids

Overview:

Hyperacanthomysis longirostris is a Mysid crustacean. It is native to coastal waters of the Northeast Pacific, including southern Japan, Korea, and China. It is introduced in the Sacramento-San Joaquin Delta, California where it is concentrated in low-salinity estuarine habitats. It maintains a population in 0-5 PSU, largely by a pattern of vertical migration, migrating upward on incoming tides. It has become the predominant mysid in the delta, largely replacing a native mysid species (Neomysis mercedis), which is an important food organism for juvenile fishes.

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Citation:

Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
http://invasions.si.edu/nemesis/.
Access Date:



Marine Invasions Lab
Smithsonian Environmental Research Center

P.O. Box 28
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Edgewater, MD 21037-0028 Tel: 443 482 2200
Fax: 443 482 2380
invasionsweb@si.edu


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