Red Swamp Crayfish Procambarus clarkiiNon-native  -  Invasive  

There are 24 records in the project database.

GAALWAFRCLMO HO BABCHA CEPG AA CVCH SMKE QA CN TADO WI SO WO 
A Red Swamp Crayfish in Harford Co., Maryland (6/22/2015). Photo by Mark Johnson. (MBP list)

A Red Swamp Crayfish in Harford Co., Maryland (6/22/2015). Photo by Mark Johnson. (MBP list)

A Red Swamp Crayfish in Harford Co., Maryland (6/22/2015). Photo by Mark Johnson. (MBP list)

Procambarus clarkii in Worcester Co., Maryland (6/5/2005). Photo by Bill Hubick. (MBP list)

A Red Swamp Crayfish in Harford Co., Maryland (8/2/2013). Photo by Mark Johnson. (MBP list)

A Red Swamp Crayfish in Dorchester Co., Maryland (7/1/2013). Photo by Scott Housten. (MBP list)

A Red Swamp Crayfish in Charles Co., Maryland (8/31/2017). Measured 79 mm. Photo by Robert Aguilar, SERC. (MBP list)

A Red Swamp Crayfish in Dorchester Co., Maryland (7/22/2018). Photo by Bill Hubick. (MBP list)

An adult Yellow-crowned Night-Heron feeding on an introduced Procambarus clarkii in Silver Spring, Maryland (8/4/2012). Despite our over-arching concerns about non-native crayfish, there are no complaints from local Yellow-crowned Night-Herons. Photo by Stephen Davies. (MBP list)

An immature Yellow-crowned Night-Heron feeding on a Red Swamp Crayfish in Kent Co., Maryland (7/11/2015). Photo by Jeff Culler. (MBP list)

A Red Swamp Crayfish in Kent Co., Maryland (6/27/2017). Photo by Nancy Wyman. (MBP list)

A very young crayfish, nearly certainly a Red Swamp Crayfish found in Harford Co., Maryland (6/1/2013). Mikey Lutmerding notes its narrow rostrum and narrow/obliterated areola. Photo by Christine Yale. (MBP list)


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