Iowa Department of Natural Resources

Environmental Services Division

 

For Immediate
Release                                                          

July 15, 2008

 

FISH KILL DISCOVERED IN ROCK FALLS

 

MEDIA CONTACT: Clay Swanson, DNR Mason
City Field Office, at (641) 424-4073

 

ROCK FALLS — The DNR was alerted Monday afternoon of
a fish kill in Cerro Gordo
 County. A number of large
dead carp were found in the Shell Rock River, starting in Rock
Falls and ending near Rockford. 

 

The fact that the fish were all of the same size and species leads
staff to believe that cause of the kill was natural. Often factors such as
spawning stress, disease or low oxygen levels can cause fish kills of this
type. 

 

DNR staff believes the fish kill occurred on or before last Thursday,
as the fish were badly decomposed. People who observe dead fish should call the
DNR 24-hour Spill line at (515) 281-8694 as soon as possible. It is important
for staff to begin investigating early to determine the cause of the fish kill.


 

Writer: Cassy Lalan

 

-30-

 


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