Heavy metal bioaccumulation in <i>Callinectes amnicola</i> and <i>Farfantepenaeus notialis</i> from three selected tropical water bodies in Lagos, Nigeria.

Abstract

The bioaccumulation of heavy metals in organisms is as a result of pollutants discharge generated by anthropogenic and natural activities which has become a tremendous concern in developing nations. The levels of cadmium, copper, chromium, lead, zinc and nickel in the tissue of Callinectes amnicola and Farfantepenaeus notialis collected from Igbese River, Makoko and Lekki Lagoon were evaluated for a period of eight months. Heavy metals analysis was done using Atomic Absorption Spectrophotometer

Metal Content and Oxidative Stress Enzymes in Aquatic Crab, Goniopsis cruentata (Latreille, 1802) from Tropical Creeks Adjacent Western Axis of the Lagos Lagoon

“…Relatively higher metal contents were recorded in G. cruentata when compared to water, which can be attributed to biological buildup. Similarly, Lawal-Are et al 33 found elevated levels of zinc (0.74 ± 0.13 mg kg -1 ), copper (1.21 ± 0.03 mg kg -1 ), chromium (0.28 ± 0.10 mg kg -1 ), lead (0.26 ± 0.07 mg kg -1 ) and nickel (0.28 ± 0.03 mg kg -1 ) in Callinects amnicola from Igbese River. According to Ezemonye et al 34 , elevated heavy metal concentrations in aquatic organisms imply cumulative exposure through water and/or food.…”