TilE FOOD OP a.;o ...........".us. 1158 IN MEDITEIUlAIIUJI WATEJIS OPF ALJ!JU.MDRIA

TilE FOOD OP a.;o ………..”.us. 1158

IN MEDITEIUlAIIUJI WATEJIS OPF ALJ!JU.MDRIA

EZZA’f, A, ABD EL-AZIZ. SoIL, EL-GJfARABAWY, M.M,·

AND HUSSEIN, If.O_

DepArt_nt of ()up..,. !’••tt, ef 5c~e. Alexandria Unhe;·s1ty.

*Instttute of OcHMFI!pIw ., fhMrtes. Aleull4ria.

ABSTRACT
The attaJYlfs of tfte stOMdI contents of Raja
“raletus ,””e,lett the followfn9 fach; RAJa “nletus
h voracfol.ls and the stQll4chs of over 701 of fish
examined contairt~ fOO1.l. The intake of adul t feNles
is reduc~ in summer. period of egg laying. The
stomach cantellls consisted of a wide ranve of
crustacea and teleosts, !tIllusca and Anneltda fOl”ll1l!d
a relatively small portion. The juvenl1es feed upon
sllIall crusticea. Adults eat IlION teleosts and less
crustacea than the youngS. The analysis of preys
wi til respect to S12e at capture showd that IS the
rays grew, they attained deeper de.pths. No fllportant
selsonal variations in type of food Is noticed.