Distribution of three non-essential trace metals (Cadmium, Mercury and Lead) in the organs of fish from Aiba Reservoir, Iwo, Nigeria (original) (raw)

“…Similar results have been reported seasonal distribution of heavy metals in Cyprinus carpio and Acanthobrama marmid species [ [77] , [78] , [79] , [53] , [49] ]. Chromium is an essential heavy metal because metal amount of trivalent Cr (III) plays an essential role of Cu and Cr may have toxic effects for humans.…”

Section: Resultssupporting

“…1 ). Variation among the different species from the same water body suggests that the accumulation may be species dependent [17] , possibly due to the differences of feeding habits and bioaccumulation factor [18] . However, Cd levels in Site 3, 4 and 5 were generally higher that Site 1 and this could be due to the increasing anthropogenic activity in these areas.…”

Section: Resultsmentioning

“…The concentration levels of metals in fish tissue are also affected by the position of the fish in the food chain, its size and age (16) and the duration of exposure (17). According to previous studies (6,10,18), the affinity of metals with specific organs seems to vary. For example, it seems that the liver, kidney, and gills are the main organs for the accumulation of metals in fish exposed to toxicants.…”

Section: Discussionmentioning