The relationship between biotic factors and the content of chosen heavy metals (Zn, Fe, Cu and Mn) in six wild freshwater fish species collected from two lakes (Łańskie and Pluszne) located in northeastern Poland
- سال انتشار: 1398
- محل انتشار: مجله علوم شیلات ایران، دوره: 19، شماره: 1
- کد COI اختصاصی: JR_JIFRO-19-1_032
- زبان مقاله: انگلیسی
- تعداد مشاهده: 278
نویسندگان
University of Warmia and Mazury in Olsztyn, Poland
University of Warmia and Mazury in Olsztyn, Poland
University of Warmia and Mazury in Olsztyn, Poland
Department of Ichthology the Stanisław Sakowicz, Inland Fisheries Institute in Olsztyn, Poland
چکیده
The effect of biotic factors such as species, condition factor, body weight and total length of fish on concentrations of iron (Fe), zinc (Zn), copper (Cu) and manganese (Mn) in organs of Rutilus rutilus (L.), Abramis brama (L.), Coregonus lavaretus (L.), Esox lucius (L.), Perca fluviatilis (L.) and Tinca tinca (L.) from reservoirs of Warmia and Mazury region (northeastern Poland) were determined. Differences in the content of metals were observed between species (p≤۰.۰۵). Some metals demonstrated specific affinity for particular tissues. Lower concentrations of metals were found in muscles and ranged as follows: Zn ۳.۴۲۷-۹.۹۵۰, Fe ۱.۲۹۷-۲.۵۵۰, Cu ۰.۱۳۳-۰.۲۷۹ and Mn ۰.۰۵۰-۰.۱۶۲ (expressed mg kg-۱ wet weight). The highest levels of Fe (۳۳.۴۹-۱۲۳.۶) and Cu (۳.۹۹۴-۲۷.۱۴) (except for copper in perch) found in the liver (p≤۰.۰۵) was related to detoxification, whereas high concentrations of Mn (۱.۳۶۶-۵.۱۱۳) and Zn (۱۵.۹۱-۱۳۵.۰) (except for Zn in tench) in gills may be associated with excretion processes or uptake (p≤۰.۰۵). The two organs (gills and liver) may be used as bioindicators of metal contamination of aquatic environments. Studies on the size and condition factor dependency of heavy metal concentrations have showed that, although the relationship exists, in most cases it was not statistically significant for organs. Metal Pollution Index (MPI) in organs of fish examined was ۱.۵۰۳< MPI< ۳.۵۷۵. The daily per capita consumption of ۳۴ g of fish examined showed ۰.۳۱۷-۰.۶۲۴% of Fe, ۱.۱۷۴-۳.۴۰۸% of Zn, ۰.۴۵۵-۰.۹۵۵% of Cu and ۰.۰۸۵-۰.۲۷۸% of Mn of the RDA reference dose.کلیدواژه ها
Heavy metals, Freshwater fish, Condition factor, Body weight, Total length, Mazurian Lake Districtاطلاعات بیشتر در مورد COI
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