LaCrosse FWCO
Midwest Region
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Contacting Us:

Pam Thiel
(Project Leader)
555 Lester Avenue
Onalaska, WI 54650

Email
Phone:
(608) 783-8434
Fax:
(608) 783-8450

Grass Carp

The grass carp, Ctenopharyngodon idella, also known as the white amur, was imported into Alabama and Arkansas, from eastern Asia in 1963 to control aquatic vegetation. The grass carp has been reported to eat 45 kg (99.2 lbs) of vegetation a day! In Asia, grass carp usually occupy large rivers, but also thrive in ponds and rice fields. Although some say the flavor of the flesh of the grass carp has a strong algal flavor, demand for the fish as food is high in some areas. Grass carp are known to compete for food with invertebrates such as crayfish, and other fish species, cause significant changes in phytoplankton and invertebrate communities, interfere with reproduction of other fish, modify habitat by destroying vegetation and water quality, and much more.



grass carp features - fusiform body &  34-47 lateral line scales

Grass carp can grow to be about 4 ft. and 40-50 lbs.
grass carp
Grass Carp


Grass Carp

USFWS Photos

 

Last updated: December 14, 2009