engleski

Heavy metal concentration in fish tissues inhabiting waters of "Buško Blato" reservoir

Heavy metals concentration (mercury, lead, cadmium, arsenic, copper, zinc and chromium) in tissues (muscles, liver, kidney and gonads) of brown trout, the souffie, the nase and Dalmatian barbelgudgeon, inhabiting waters of Buško Blato reservoir in Bosnia and Herzegovina, has been determined by atomic absorption spectrophotometry. Only arsenic and chromium concentrations were in all tissues of each fish sort lower than maximal admissible concentration (MAC) in Croatia and most other countries. The lowest level of all heavy metals were always in gonads, with higher values in fry compared to milt for copper, zinc, chromium and arsenic. Our general conclusion is that the meat (muscles) of the fish sorts inhabiting waters of Buško Blato does not contain elevated concentration of most analyzed heavy metals with exception of lead (higher than MAC in Italy, Germany and Denmark) and mercury (in muscles of brown trout higher than MAC in most countries). The highest copper concentration is observed in the liver from the souffie which is suggested as a suitable biomonitor for copper intoxication.

Heavy metals concentration; fish tissues; atomic absorption spectrophotometry; Buško Blato reservoir; Bosnia and Herzegovina

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