MORPHOLOGICAL STUDY OF OTOLITH IN TWO MUGILID SPECIES LIZA SUBVIRIDUS(VALENCIENNES,1863) & L.ABU (HECKEL,1843)
2011
Azal Naser Bader Al-nusear
In order to study the otolith (sagitta) of Liza abu (total length ranged 88-120 mm, body weight was from 7 to 9 g) and L. subviridus(total length ranged 155-205 mm, body weight was from 10 to15 g) 20 specimens of each of them were collected from local markets, sagitta was removed from head by making cross section .Some differential characteristics were observed between the two species sagitta in shape of anterior and posterior sides , notch was found in the mid of posterior margin in L.abu, while in L. subviridus the notch locates in posterioventral margin, so sagitta can be used to identify the two species
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