Ocean quahog clam lifespan and age in human years
Longest recorded 507 years
🏆 The longest-lived ocean quahog clam on record reached 507 years in the wild.
Ocean quahog clam (Arctica islandica). The oldest known individual lived 507 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 12.5 years
How old in human years?
Age
Ocean quahog clam age chart in human years
Shaded rows are equivalent to human age 60+.
| Ocean quahog clam | Human age | Stage |
|---|---|---|
| 25 yr | 21 | Adult |
| 50 yr | 26 | Adult |
| 75 yr | 31 | Adult |
| 100 yr | 36 | Adult |
| 125 yr | 41 | Middle age |
| 150 yr | 46 | Middle age |
| 175 yr | 52 | Middle age |
| 200 yr | 57 | Middle age |
| 225 yr | 62 | Senior |
| 250 yr | 67 | Senior |
| 275 yr | 72 | Senior |
| 300 yr | 77 | Elderly |
| 325 yr | 82 | Elderly |
| 350 yr | 88 | Elderly |
| 375 yr | 93 | Elderly |
| 400 yr | 98 | Elderly |
Ocean quahog clam profile
| Classification | Bivalvia > Venerida > Arcticidae |
|---|---|
| Scientific name | Arctica islandica |
| Age of maturity | 12.5 years |
| Longest recorded | 507 years (wild) |
Sources
How we convert ages: method.
More Sea life
Bottlenose dolphinLifespan about 40 years
Killer whaleLifespan about 50 years
Bowhead whaleLifespan up to 211 years (record)
Blue whaleLifespan about 85 years
Sea otterLifespan about 15 years
Spotted sealLifespan up to 38 years (record)
Green sea turtleLifespan about 70 years
Greenland sharkLifespan up to 392 years (record)
Whale sharkLifespan up to 54 years (record)
Common octopusLifespan about 12 months
Immortal jellyfishLifespan Biologically immortal (can revert to youth)
American lobsterLifespan up to 100 years (record)