Smallmouth Buffalo
Ictiobus bubalus · Catostomidae
About this fish
- Spawning
- March, April, May and June
- Largest length
- up to 112 cm (44 inches)
- Lifespan
- up to 17.5 years
- Matures at
- about 2 years old
Values come from a national database of the United States, not Wisconsin surveys: maximum length is the species' largest recorded anywhere, and spawning months are range-wide (Wisconsin timing, in a colder climate, can be later).
USGS FishTraits 14.3 (CC0). Credit: Frimpong and Angermeier, U.S. Geological Survey.
26 open records of this fish in Wisconsin were used here.
Lakes where it has been recorded
From open fish survey and museum records. A record shows the fish was found near the lake in that year, not that it is there now.
Showing 7 of 7 lakes
- Lake Saint CroixPierce County4,668 acres · 60 ft deeprecorded 1940 to 2006 (9 records)recorded
- Swan LakeColumbia County406 acres · 82 ft deeprecorded 2002 (1 record)Moderatestocked, recorded
- Mallalieu LakeSt Croix County270 acres · 17 ft deeprecorded 2001 (1 record)Lowrecorded
- Peaslee LakePolk County23 acres · 2 ft deeprecorded 1993 (1 record)Lowrecorded
- Delavan LakeWalworth County2,072 acres · 56 ft deeprecorded 1959 to 1975 (4 records)Moderatestocked, recorded
- Lake WisconsinColumbia County9,000 acres · 24 ft deeprecorded 1947 (1 record)Lowstocked, recorded
- Lake PepinPepin County25,494 acresrecorded (1 record)recorded