* ICLARM is now known as WorldFish Center

Naga - The *ICLARM Quarterly
Vol. 23, No. 3 (July - September 2000)

Using Eye Lens Diameter as Age Indicator of Young Lithognathus mormyrus and Diplodus vulgaris
A. J. Conides and L. A. J. Al-Hassan

Eye lens diameter was analyzed in two sparid fish species, Lithognathus mormyrus and Diplodus vulgaris, in order to determine the possibility of using these data for age determination. The results showed that the technique could be adopted for determining the age of the two species when the specimens are very young. The method is especially useful for age determination when otolith or scale rings are not visible or when false rings may give erroneous readings.

A.J. Conides is from the National Center for Marine Research, Athens 16604, Greece while L.A.J. Al-Hassan is from the School of Biological Science, University of Auckland, Private Bag 92019,Auckland, New Zealand. Address: Dr. Alexis J. Conodes, Aristotelous 130, GR-112 51 Athens, Greece

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