1. Heavy metal bioaccumulation and Fulton’s K condition indices in Scylla serrata (Forskål) in relation to sex
- Author
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Champika Ellawala Kankanamge, Jalaldeen Mohamed Harris, Periyathamby Vinobaba, and Ranil Kavindra Asela Kularatne
- Subjects
Environmental Engineering ,Wet weight ,biology ,Chemistry ,Bioconcentration ,010501 environmental sciences ,biology.organism_classification ,01 natural sciences ,Metal ,Condition index ,Animal science ,Scylla serrata ,visual_art ,Bioaccumulation ,visual_art.visual_art_medium ,Environmental Chemistry ,Ecotoxicology ,General Agricultural and Biological Sciences ,0105 earth and related environmental sciences - Abstract
This article discusses the temporal variation and stress of heavy metal accumulation in Scylla serrata (Forskal) with reference to sexes. Cd and Sn were undetected (i.e., below the method detection limits of 0.001 Cd mg/kg wet weight and 0.005 Sn mg/kg) in both sexes. However, Scylla serrata (Forskal) consistently exhibited high accumulation of As, Pb, Hg and Zn. Zn was the most abundant metal in both sexes. (Average Zn content in males and females was around 40.76 ± 2.51 and 45.10 ± 2.24 mg/kg wet weight, respectively.) Pb and Hg levels exceeded EU and Sri Lankan admissible limits on many occasions (0.02 Pb mg/kg wet weight and 0.5 Hg mg/kg wet weight). Bioconcentration factors (BCFs) of As and Zn from the water > 1 in both sexes indicating effective direct uptake from the water. However, temporal variation of Zn and Hg and the interaction between temporal variation of these metals and the two sexes were insignificant (P > 0.05). Nevertheless, temporal variation of Pb (P
- Published
- 2018
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