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Titel (primär) Trace metal concentrations in single specimens of the intestinal broad flatworm (Diphyllobothrium latum), compared to their fish host (Oncorhynchus mykiss) measured by total refelction X-ray fluorescence spectrometry (TXRF)
Autor Woelfl, S.; Mages, M.; Torres, P.;
Journal / Serie Spectrochimica Acta Part B: Atomic Spectroscopy
Erscheinungsjahr 2008
Department FLOEK;
Band/Volume 63
Heft 12
Sprache englisch;
Keywords Trace element analysis; Fish parasite; Total Reflection X-ray Fluorescence; Bioaccumulation; Rainbow trout
Abstract The aim of this study was to investigate (1) whether intestine endoparasites (Diphyllobothrium latum) accumulate trace elements related to its body size and (2) whether parasites bioconcentrate more trace elements than their host. Freshwater fish (rainbow trout Oncorhynchus mykiss) were sampled in the deep, oligotrophic and uncontaminated Lake Riñihue in Southern Chile. The element concentration of different organs (intestine, muscle, liver) and of the intestine endoparasites were analyzed using total reflection X-ray fluorescence spectrometry. The results showed that the mass fraction for Mn, Fe, Ni, Cu, and Pb decreased significantly with the body size (dry weight) of the endoparasite. Only Zn did not reveal such a relationship. Small parasites accumulated up to 80 times more Fe, Ni, Mn, Pb, and Cu than large parasites. Compared to the fish organs, small parasites accumulated in maximum 35 to 307 times more Mn, 5 to 255 times more Fe, 98 to 220 times more Ni, 3 to 175 times more Cu, and 0.4 to 12 times more Zn than the fish. Lead was only found in the endoparasite, but not in the fish organs. We conclude that (1) D. latum is a good indicator for trace element accumulation in fishes and that (2) small endoparasites are more sensitive as bioindicators because they showed higher bioconcentrations of trace metals than larger parasites.
ID 1581
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1581
Woelfl, S., Mages, M., Torres, P. (2008):
Trace metal concentrations in single specimens of the intestinal broad flatworm (Diphyllobothrium latum), compared to their fish host (Oncorhynchus mykiss) measured by total refelction X-ray fluorescence spectrometry (TXRF)
Spectroc. Acta Pt. B-Atom. Spectr. 63 (12), 1450 - 1454