IDEJtlTIFICATION OF TWO SPECIES OF SUBFAMILY (BAGRINEA) NAMELY: CHRYSICHTHYS RUEPPELLIAND CHRYSICHTHYS AURATUS USING ISOELECTRlC FOCUSING TECHNIQUE

IDEJtlTIFICATION OF TWO SPECIES OF SUBFAMILY (BAGRINEA)

NAMELY: CHRYSICHTHYS RUEPPELLIAND CHRYSICHTHYS

AURATUS USING ISOELECTRlC FOCUSING TECHNIQUE

By
M. I. ZAKI,*; A.M. ABD-ELGAWAD; AND A.F. FAHMY
*National Institute ofOceanography and Fisheries, Alexandria – Egypt.
Key Words: Isoelectric focusing, Family Bagrinea.
ABSTRACT
Identification of Ch1′}’sichthys rueppelli and C. auratus (subfamily
BAGRINEA) was carried out morphologically and by using isoelectric focusing
technique of soluble protein of the eye lens, flesh and skin.
Results indicated that C. rueppelli and C. auratus are two completely
separate species with major differences in both morphological and isoelectric
point focusing values (PI). It was also found that, in each organ (eye lens, flesh
and skin), there are characteristic protein fractions showing clear taxonomic
relationship between the two examined species.