Assessment of Heavy Metals in Muscle of Tilapia zilli from Some Nun River Estuaries in the Niger Delta Region of Nigeria

Ayobami Aigberua* and Timi Tarawou
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Ayobami Aigberua*: Department of Chemical Sciences, Faculty of Science, Niger Delta University, Wilberforce Island, Bayelsa state, Nigeria
Timi Tarawou: Department of Chemical Sciences, Faculty of Science, Niger Delta University, Wilberforce Island, Bayelsa state, Nigeria

Academic Journal of Chemistry, 2017, vol. 2, issue 9, 96-101

Abstract: This study investigated the heavy metal concentration in muscle of Tilapia zilli from River Nun in Bayelsa state, Nigeria. The samples were collected from the brackish environment in the Nun river estuary. Tilapia zilli were collected from creek lines traversing five communities at Obama, Tebidaba, Clough creek, Ogbainbiri and Samabiri. The samples were preserved in ice chest and transported to the laboratory. The fish samples were prepared by oven-drying, dry-ashing and digested using a mixture of 5 ml of 1 N nitric acid and 10 ml of 1 N hydrochloric acid, afterwards, the acid digest was filtered and made up to 20 ml by diluting to volume with distilled water. The fish sample digests were analyzed using flame atomic absorption spectrometry. Result of the fish ranged from 0.380 – 21.555mg/kg (lead),

Keywords: Water pollution; Bioaccumulation; Fisheries; Nun river; Tilapia zilli. (search for similar items in EconPapers)
Date: 2017
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