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Limits RegistryBigmouth buffalo (Ictiobus cyprinellus) are the longest-lived freshwater fish known. Alec Lackmann and colleagues used otolith thin sections and bomb-radiocarbon validation to document individuals 112 years old in Minnesota (2019) and 127 years old in Saskatchewan (2023); a 2025 study reported an individual of about 148 years.
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Bigmouth buffalo (Ictiobus cyprinellus) are the longest-lived freshwater fish known. Alec Lackmann and colleagues used otolith thin sections and bomb-radiocarbon validation to document individuals 112 years old in Minnesota (2019) and 127 years old in Saskatchewan (2023); a 2025 study reported an individual of about 148 years.
The greatest age determined for any freshwater bony fish using otolith growth-increment analysis.
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Permanent ID limitsregistry.com/limits/LR-LONGEST-LIVED-FRESHWATER-FISH-BIGMOUTH-BUFFALO
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Limits Registry. LR-LONGEST-LIVED-FRESHWATER-FISH-BIGMOUTH-BUFFALO. Longest-lived freshwater fish. 2026.