The use of cestode parasites from the largemouth yellowfish, Labeobarbus kimberleyensis (Gilchrist and Thompson, 1913) in the Vaal Dam, South Africa as indicators of heavy metal bioaccumulation

摘要: Abstract Twenty Largemouth yellowfish Labeobarbus kimberleyensis (Gilchrist and Thompson, 1913) were collected in the Vaal Dam vicinity of RAU Island (Groot Eiland). Muscle-, spinal cord- liver tissue removed from each fish intestine opened to obtain Bothriocephalus acheilognathi . The tissues then digested a microwave digester metal concentrations determined with an ICP-MS. results indicate that worms have potential use as bioindicators, because 8 elements (lithium, beryllium, manganese, selenium, mercury, thallium, lead uranium) out 23 measured cestodes accumulated highest concentrations, 7 (chromium, iron, zinc, molybdenum, cadmium, tin barium) had second accumulation recorded.