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*Codfish live to an average of 15 years or so, with a record of 27 years old from the 1960s. You can tell a cod's age from the two white earstones in the skull (otoliths), which have annual growth rings. You really can not tell the age from their weight, as the rate of growth will vary, depending on the water temperature, population size, food, etc.
*Codfish live to an average of 15 years or so, with a record of 27 years old from the 1960s. You can tell a cod's age from the two white earstones in the skull (otoliths), which have annual growth rings. You really can not tell the age from their weight, as the rate of growth will vary, depending on the water temperature, population size, food, etc.
== See also ==
*[[Marine]]
==References==
==References==
http://www.ucd.ie/codtrace/codbio.htm
http://www.ucd.ie/codtrace/codbio.htm