Fish Kill Event - Little Maquoketa River
Southwest of Graf to northeast of Graf
- Event ID
- 980
- Date of Kill
- 8/9/2019
- Waterbody Type
- River/Stream
- Cause Origin
- Unknown
- Cause
- Unknown
- Mode
- N/A
- Magnitude
- 6 (25,001 - 50,000 fish killed)
- Estimated Fish Killed
- 33,352
- Kill Length
- 6.36 miles
- Valuation
- $44,572.12
- Investigation Expenses
- $2,731.99
- County
- Dubuque
- ESD Field Office
- FO 1
- Fisheries Office
- Manchester Trout Hatchery
- LongDD
- -90.89713
- LatDD
- 42.48155
- Created Date
- 8/21/2019 9:15:06 AM
- Last Update
- 8/21/2019 9:23:17 AM
Unconfirmed cause of kill. Began in the NE ¼ of section 31, T89N, R1E and ending in the SW ¼ of section 15, T89N, R1E. The kill was extensive over 6.3 miles of stream. Water was clear and near base flows at the time of assessment. The kill included numbers of crayfish that were not quantified. One dead field mouse was also noted in the kill area that may have or may not have been associated with the fish kill. Fish had been dead for several days prior to the investigation and species identifications were not possible for some fish carcasses. We identified the following thirteen species in the kill extent:, Bluegill, Redhorse Species, Central Stoneroller, Common Shiner, Creek Chub, Hornyhead Chub, Johnny Darter, Largemouth Bass, Madtom Species, Rock Bass, Smallmouth Bass, Stonecat, and White Sucker. In cases where species could not be determined the value of individuals was set at $0.07, or the lowest valuation of fish provided for this region in AFS Special Publication 30. The fish kill site was determined to be incompletely accessible given terrestrial vegetation at the location, pastured cattle and the extent of the location.