Home

Latest News

Bigmouth buffalo’s negligible senescence

Bigmouth buffalo in MeatEater’s Das Boat

Bigmouth buffalo in National Geographic.

Precision & Accuracy

Age analysis of fishes using otoliths (earstones): thin-sectioned otoliths and bomb radiocarbon age validation.

Focus

Ichthyology, otoliths, fisheries science, population demographics, natural history, longevity and senescence.

Publications

• Sauer et al. (2021). Scientific Reports. No evidence of physiological declines with age in an extremely long-lived fish.
• Lackmann et al. (2021). Canadian Journal of Fisheries and Aquatic Sciences. Long-lived population demographics in a declining, vulnerable fishery-bigmouth buffalo (Ictiobus cyprinellus) of Jamestown Reservoir, North Dakota. 
• Radford et al. (2021). Transactions of the American Fisheries Society. Comparison of Four Hard Structures including Otoliths for Estimating Age in Blue Suckers Cycleptus elongatus. 
• Lackmann et al. (2019). Communications Biology. Bigmouth Buffalo Ictiobus cyprinellus sets freshwater teleost record as improved age analysis reveals centenarian longevity
• Daugherty et al. (2019). Otolith‐based age estimates of Alligator Gar assessed using bomb radiocarbon dating to greater than 60 years.

see more

Publicity

• National Geographic: 112-year-old fish has broken a longevity record
• MPR: New appreciation for a Minnesota fish long considered junk
• Star Tribune: Record catch: At 112 years, Minnesota fish is the oldest freshwater fish ever verified

see more

Collaboration

• Nicholls State University, Louisiana, GarLab – aging of gar and other fishes
• Eastern Illinois University – aging of blue sucker
• University of Saskatchewan and the Water Security Agency, Canada – aging of bigmouth buffalo
• University of North Texas – aging of smallmouth buffalo

see more