Jul 09 2011

How is the age of a fish determined?

Category: Science


Age of a FishScientists typically count growth rings, which are located in the skull of a fish, to determine its age. In most cases they use a bone called the otolith to determine this. An otolith bone is equivalent to the human earbone where seasonal changes in the environment create differentiations that can be counted. Each year will essentially create two new rings which can be used to determine the number of years the fish has existed.

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