The distribution of elements in the body of invasive Chinese mitten crabs (Eriocheir sinensis H. Milne-Edwards, 1853) from Lake Dąbie, Poland

Publication date: July 2017
Source:Journal of Food Composition and Analysis, Volume 60
Author(s): Arkadiusz Nędzarek, Przemysław Czerniejewski, Arkadiusz Drost, Filip Harasimiuk, Sylwia Machula, Agnieszka Tórz, Paweł Masalski
The Chinese mitten crab (Eriocheir sinensis) is an invasive species in the Baltic Sea catchment area. Its numbers in fishery are steadily growing and can potentially become a considerable export product. However, the meat of these crustaceans is known to accumulate contaminants, such as trace elements. Therefore, in this study we examined the content of Al, As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, U, Zn in the claws, legs, and carapace of Chinese mitten crabs from Lake Dąbie (south-western catchment area of the Baltic Sea). Concentrations of Mo and U were within the sensitivity limit of the analytical method, and the average concentrations (inmgkg⁻¹dw) of the remaining elements ranged from 0.016 (Cd, claw meat) to 191 (Fe, carapace). The meat had very high concentrations of essential metals (Fe>20, Cu>17, Zn>16, Mn>2, in mgkg⁻¹ dw). The concentrations of Pb and Cd were 5 and 100 times lower than the threshold for foods established by the Commission Regulation (EC) No 1881/2006. The meat of crabs from Lake Dąbie should be safe for consumers and may be a source of elements playing important functions in metabolic processes.



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