Accumulation of heavy metals in a food fish, <i>Mystus gulio</i> inhabiting Bolgoda Lake, Sri Lanka

Abstract

Bioaccumulation potential of selected heavy metals viz. Pb, Cd, Cr, Cu, and Zn in muscle, gills and liver of food fish, Mystus gulio (Anguluwa) inhabiting in Bolgoda Lake were assessed by analyzing metal levels in the fish collected from four main locations: Weras Ganga, North Lake, Bolgoda Ganga and South Lake. In addition, water and sediment samples were taken concurrently from the sampling locations for determination of the metal levels. The metal levels were analysed by atomic absorption spectrometry using standard procedures. Dissolved total metal levels in lake water (in µg L-1) varied depending on the sampling location:

Use of biomarkers in Nile tilapia (Oreochromis niloticus) to assess the impacts of pollution in Bolgoda Lake, an urban water body in Sri Lanka

“…Several studies have been carried out previously to assess physico-chemical parameters (Silva 1996), metal pollution (Senarathne and Pathiratne 2007) and PAH pollution in Bolgoda Lake. The present study is the first study which focused on biomonitoring of water pollution in Sri Lankan water bodies using a suite of biomarkers in Nile tilapia.…”

“…Over 50 species of edible fishes including tilapias (Oreochromis species) reside in Bolgoda Lake. Occurrence of high levels of heavy metals and PAHs in the lake has been reported previously Senarathne and Pathiratne 2007).…”

Bioaccumulation of Trace Metals in Cyprinus carpio (Common Carp) from Bomuruella Reservoir, Nuwara-Eliya

“…Contaminations of trace metals in inland water bodies can be determined using the metal levels in water; sediments and resident biota especially using fish species (Senarathne and Pathirathne, 2007). Currently, trace metal pollution in aquatic ecosystems is one of the growing problems worldwide and it has been increasing at an alarming rate (Ogoyi et al, 2011).…”

Status Assessment of Heavy Metals in Water of the Lepenci River Basin, Kosova

“…This is of particular importance in ecotoxicology, as heavy metals are highly persistent and have the tendency to bioaccumulate and concentrate in the food chain; at higher concentrations, they become toxic to organisms. Heavy metal pollution in water can be monitored through measuring their concentrations [Senarathne and Pathiratne, 2007].…”