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Accumulation of heavy metals (Pb, Cd, Fe, Z, Ni, Cu) in gill, liverrnand muscle of 30 individuals of greater lizardfish (Saurida tumbil), collectedrnfrom Hendijan fishing area in April 2012, was assessed. Metals werernextracted by digestion method and their levels were measured by atomicrnabsorption spectrophotometr (AAS- model GBC Savanta AA ). Levels ofrnthe heavy metals from maximal to minimal were Fe>Zn>Cu>Ni>Pb>Cd.rnMean of heavy metals accumulation in gill, liver and muscle werernsignificantly different (P

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Identification of intertidal echinoderms and the effect of environmental factors on their density and distribution in five stations around the Khark Island were seasonally investigated. Three transects were designated to cover the supralittoral, eulittoral and sublittoral zones within each station. The environmental factors such as temperature, salinity and total organic maters (TOM) were also recorded. Maximum and minimum water temperature were recorded in summer (35.94 ± 0.28) and in winter (18.34 ± 0.39) and the maximum and minimum salinity were recorded in winter (44.6± 0.14) and spring (37 ± 0.18), respectively. Maximum and minimum percentages of total organic maters (TOM) were observed in summer (9.63 ± 0.71) and winter (3.39±0.15), respectively.Totally four species belonging to for families were identified, viz. Asterina burtoni, Echinometra mathaei, Holothuria atra, Ophiothrix sarignyi, the highest frequency of which was encountered by E. mathaei. The maximum density and distribution were found in spring and minimum in summer and winter.