Use of eye lens diameter and weight as an age indicator in the carangid fish, Decapterus russelli (Pisces: Carangidae) from Gulf of Oman: preliminary observation
Specimens of Decapterus russelli have been collected from Lema, north of the Gulf of Oman. The ocular lens diameter and weight were tested as an additional age indicator to those already in use. The results showed that this technique could be adopted for determining the age of the species Decapterus russelli when the specimens are in the second year of age in case of eye lens diameter. On the other hand, eye lens weight failed to separate between the four age groups observed. The method is especially useful for age determination when otolith or scale ring are not visible or when false rings give erroneous reading.
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| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2010
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| Subjects: | Biology, eye lens diameter, eye lens weight, ageing, Carangidae, Decapterus russelli, Gulf of Oman, |
| Online Access: | http://hdl.handle.net/1834/34294 |
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