The Ohio shrimp, Macrobrachium ohione, in the Upper Mississippi River. 

Conaway, L. K., and R. A. Hrabik. 1997. The Ohio shrimp, Macrobrachium ohione, in the
Upper Mississippi River. Transactions of the Missouri Academy of Science 21:44 46.
Reprinted by U.S. Geological Survey, Environmental Management Technical Center,
Onalaska, Wisconsin, March 1998. LTRMP 98-R006. 3 pp.   (NTIS #PB98-139033) 


ABSTRACT

The Ohio shrimp, Macrobrachium ohione, was once common in the Mississippi River
between St. Louis, Missouri, and Cairo, Illinois. The population rapidly declined in the
1930s and 1940s presumably as a result of habitat destruction. The last known collection
of this species was made near Cairo, Illinois, in 1962. Through the intensive sampling of
long-term monitoring projects, several recent collections of M. ohione were made in the
upper Mississippi River between river miles 38-81. It is not clear if M. ohione is making a
come back or if it has persisted in low numbers in the Mississippi River for the past 50
years.


KEYWORDS

Endangered species, Illinois, Macrobrachium ohione, Mississippi River, Missouri,
monitoring