HEA VY METAL CONTENTS OF SOME MOLLUSCS AND CRUSTACEANS ALONG AL-HODEIDAHRED SEA COAST OF YEMEN

HEA VY METAL CONTENTS OF SOME MOLLUSCS AND
CRUSTACEANS ALONG AL-HODEIDAHRED SEA COAST OF YEMEN
BY
MAJED A.M AL-EDREESI*,MAHMOUD A. ABDELMONEIM**,

HAMID T. AL-SAAD & HASSAN MA. HEBA

*Fac. Mar. Sci. &- Errviron.,Al- Hodeidah Univ., Yemen.
** Nat. Inst. Oceanogr. & Fish., Alexandria, Egypt.
Key word: Heavy metals, Molluscs, Crustaceans, Red Sea.
ABSTRACT
Zn, Cu, Cd, Pb, Cr, Ni, Fe and Mn were analyzed in the muscles of3
molluscs and 2 crustaceans species’ which collected from AI-Hodeidah
region (SE Red Sea Coast ofYemen).
Low levels of these metals were detected in the two groups ofmarine
animals, but in general, molluscs samples showed the lowest levels of
metals.
Finally both of them appears to be useful tool as a bio-indicator for
most ofthe metals studied. On the basis ofthe recommended standards for
metals in the edible tissues they are low enough to cause any public health
problems