Rougheyed rockfish. The rougheyed rock fish (Sebastes aleutianus) is found in the north Pacific at depths ranging from 150 to 450 meters. Maximum recorded weight is 6.7 kg, the size of a large housecat. With no apparent decline in egg production at 80 years of age, this animal doesn’t appear to age. The oldest specimen collected off the coast of SE Alaska was aged at 205 years, using seasonal growth rings deposited on otoliths — calcareous bones of the inner ear.

To read more about this and other rockfish explore the Successful Aging library.