Heavy metals in the grouper fishEpinephelus coioidesfrom the coast of Bahrain: an assessment of monthly and spatial trends

Abstract

Concentrations of Cu, Pb, Zn, Cd, Fe, Mn and Ni were determined in samples of the grouper fish Epinephelus coioides from four stations in Bahrain, Arabian Gulf. The analyses were performed using an atomic absorption spectrophotometer. The overall mean levels for Cd, Cu, Fe, Mn, Ni, Pb and Zn were 1.2, 3.9, 3.2, 2.2, 4.4, 10.8 and 499 μg g -1 wet weight, respectively. The general pattern of occurrence in order of decreasing concentration was Zn > Pb > Ni > Cu > Fe > Mn > Cd. The concentration of Zn was only significantly higher in all stations compared with other metals. Nearly all metals analyzed from the four stations exhibited monthly variations. Comparatively, the concentrations of metals obtained in the present study were similar to corresponding values for E. coioides from other areas in the Arabian Gulf, with the exception of Pb and Zn, which were higher. Generally, the levels of metals in the fish were lower than existing guidelines, except for Pb and Zn.The provisional tolerable weekly intake of Cd, Cu, Fe, Mn, Ni, Pb and Zn through E. coioides was estimated to be 0.88, 2.8, 2.3, 1.6, 3.2, 7.9 and 366 μg/kg bodyweight per week, respectively.Based on the present investigation, trace metal studies are of paramount importance to find out the health implication of these pollutants on Bahraini citizens.

Analysis of Bajomulyo Coastal Fishing Harbor Development in Pati Regency, Central Java, Indonesia

“…The present study accept the finding of [13,25,28,38,57] and disagree with the results of [6]. Levels of selected heavy metals in Pinctada radiata collected from two oyster beds in Bahrain were determined by [57]. This study reported elevated levels of Pb and Cd that exceeded the recommended standards of the World Health Organization [4].…”

“…In this study, the Arabian Gulf environmental status was assessed based on studies conducted in Bahrain, Kuwait, Oman, Saudi Arabia, Qatar, and United Arab Emirates (UAE) during 1983 and 2011. The present study accept the finding of [13,25,28,38,57] and disagree with the results of [6]. Levels of selected heavy metals in Pinctada radiata collected from two oyster beds in Bahrain were determined by [57].…”

Evaluation of trace elements contaminations in muscles of Rutilus kutum (Pisces: Cyprinidae) from the Southern shores of the Caspian Sea

“…The TEs concentrations are increased in marine ecosystems by human activities (8). Fish is considered as a good indicator for the long-term research about TEs contamination in the aquatic habitats (9) and many studies have been conducted on the TEs concentrations in different fish species (10,11). The Caspian Sea is the largest lake in the world (12,13).…”