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Palaemon kadiakensis
Image courtesy of Bio Photography Group, Biodiversity Institute of Ontario, through (CC BY-NC-SA). Image is of Palaemon sp.
Palaemon kadiakensis
Taxonomic Group: Crustaceans-Shrimp


Palaemon kadiakensis is a small, translucent freshwater shrimp, which is commonly known as the Mississippi Grass Shrimp. It is native to the interior basin of North America, from the southern Great Lakes to the Gulf of Mexico. Introduced populations are known from tidal portions of the Sacramento-San Joaquin Delta, California. This species is sold through the aquarium trade, which is the likeliest vector for its introduction. There are no documented economic or ecological impacts for this species.

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Fofonoff PW, Ruiz GM, Steves B, Simkanin C, & Carlton JT (2018)
National Exotic Marine and Estuarine Species Information System.
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Marine Invasions Lab
Smithsonian Environmental Research Center

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