Sea lamprey lifespan and age in human years
Longest recorded 9 years
🏆 The longest-lived sea lamprey on record reached 9 years in the wild.
Sea lamprey (Petromyzon marinus). The oldest known individual lived 9 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.
- Reaches adulthood at about 8.7 years
- Adult weight about 1.38 kg
How old in human years?
Age
Sea lamprey age chart in human years
Shaded rows are equivalent to human age 60+.
| Sea lamprey | Human age | Stage |
|---|---|---|
| 1 yr | 13 | Teen |
| 2 yr | 27 | Adult |
| 3 yr | 40 | Middle age |
| 4 yr | 53 | Middle age |
| 5 yr | 67 | Senior |
| 6 yr | 80 | Elderly |
| 7 yr | 93 | Elderly |
| 8 yr | 107 | Elderly |
| 9 yr | 120 | Elderly |
| 10 yr | 133 | Elderly |
| 11 yr | 147 | Elderly |
Sea lamprey profile
| Classification | Cephalaspidomorphi > Petromyzontiformes > Petromyzontidae |
|---|---|
| Scientific name | Petromyzon marinus |
| Adult weight | about 1.4 kg |
| Age of maturity | 8.7 years |
| Longest recorded | 9 years (wild) |
Sources
How we convert ages: method.
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