Correlations between speciation of Cd, Cu, Pb and Zn in sediment and their concentrations in total soft tissue of green-lipped mussel Perna viridis from the west coast of Peninsular Malaysia

Abstract

Total concentrations and speciation of cadmium (Cd), copper (Cu), lead (Pb) and zinc (Zn) in surface sediment samples were correlated with the respective metal measured in the total soft tissue of the green-lipped mussel Perna viridis, collected from water off the west coast of Peninsular Malaysia. The aim of this study is to relate the possible differences in the accumulation patterns of the heavy metals in P. viridis to those in the surface sediment. The sequential extraction technique was employed to fractionate the sediment into 'freely leachable and exchangeable' (EFLE), 'acid-reducible,' 'oxidisable-organic' and 'resistant' fractions. The results showed that significant (P<.05) correlations were observed between Cd in P. viridis and Cd in the sediment (EFLE fraction and total Cd), Cu in P viridis and Cu in the sediment (EFLE and 'acid-reducible' fractions and total Cu) and Pb in P viridis and Pb in the sediment ('oxidisable-organic' fraction and total Pb). No significant correlation (P > .05) was found between Zn in P viridis and all the sediment geochemical fractions of Zn and total Zn in the sediment. This indicated that Zn was possibly regulated from the soft tissue of P. viridis. The present results supported the use of P viridis as a suitable biomonitoring agent for Cd, Cu and Pb.

Significant correlation of Cd, Cu, Pb and Zn in sediments and oysters (Saccostrea cucullata) collected from Qeshm Island, Persian Gulf, Iran

“…In contrast, similar results from the north reported by Amiard (2007) suggested that there is no correlation between the concentration of Zn in the labile fraction in sediment and mussels. Also Yap (2002) found the insignificant correlations between the geochemical fractions of the sediment and the soft tissue of Perna. viridis.…”

“…Unlike the results obtained by Apeti et al (2005) who reported that there was no significant correlation between the total Cd in the sediment and Cd in the total soft tissue of the American oyster. Although Cd coupled with the sediment in saltwater, sediment-bound Cd may be regenerated to supply the interstitial water and the overlying seawater due to changes in physico-chemical conditions (Yap et al, 2002). Among fractions, no significant correlation was found between Cd in the total soft tissue of S. cucullata and the Cd level in the acid reducible fraction of the sediment.…”

“…About 1g of each dried soft tissue, shell and sediment sample was weighed and placed in a hot block digester and digested with a combination of concentrated nitric acid (AnalaRgrade, BDH 69%) and perchloric acid (AnalaRgrade, BDH60%) in a 4:1 ratio, first at low temperature (40 °C) for 1 h and then at 140 °C for at least 3h (Ismail, 1993;Ismail and Rosniza, 1997;Yap et al, 2002). The digested samples were diluted with double distilled water.…”

“…Although the relationship between metal speciation in sediments and bioaccumulation in aquatic organisms provides useful indication of a metal's potential interaction with the biotic and abiotic components in the aquatic environment, few studies have focussed on the correlation between heavy metal levels in the living biota and those in geochemical phases (Pempkowiak et al, 1999;Yap et al, 2002;Shober, 2007).…”

Relationship between environmental and flora change with mineral content of honey bee products

“…Bu yüzden çevre kirletici maddelerin tespiti ve değerlendirilmesi için biyoindikatör kaynaklı tekniklere ilgi giderek artmaktadır. Bu yöntemle bazı kirlenme durumlarını, biyolojik sistemlerdeki değişimler ile kimyasal kalıntıları belirleyerek ortaya çıkarmak mümkün olabilmektedir [1,4,15,16]. Balarısının bitki ve çevre arasındaki bu dengeli ve hassas etkileşimini göz önünde bulundurulduklarında, ekosistemde oluşan olası değişimler bu organizmaların izlenmesi ile gözlemlenebilir [11].…”