Fish Kill Event - Lost Island Lake

Lost Island Lake

Event ID: 901
Date of Kill: 9/29/2013
Waterbody Type: Lake
Cause Origin: Natural
Cause: Disease/Parasite/Stress
Mode: N/A
Magnitude: 1 (1 - 100 fish killed)
Estimated Fish Killed: 74
County: Palo Alto
ESD Field Office: FO 3
Fisheries Office: Spirit Lake Hatchery
LongDD: -94.91298
LatDD: 43.16285
Estimated Origin Location: True
Created Date: 9/22/2016 10:44:00 AM
Last Update: 2/7/2019 10:42:28 AM

For more information about this fish kill event, contact the Field Office or Fisheries Office listed above.

Impacted Assessment Segments

The indicated location of this event has been estimated.

Lat/Long uses WGS84 datum

Onsite Comments

Investigators counted 74 walleyes, mostly very large fish with some approaching 10 pounds dead along the shoreline. The majority of the walleyes, especially the largest females, had extensive amounts of fungus present on their bodies and in and around their mouths. Lost Island Lake, like many lakes in the area, experienced very warm water temperatures in late summer and early fall. Walleyes become stressed in warm water with the largest fish most likely experiencing the greatest impact. The onset of a bacterial/fungal infection probably occurred around this time and culminated late last week with rapidly changing weather conditions.