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Effects of iron sulfate dosage on the water flea (Daphnia magna Straus) and early development of carp (Cyprinus carpio L.)

, : Effects of iron sulfate dosage on the water flea (Daphnia magna Straus) and early development of carp (Cyprinus carpio L.). Archives of Environmental Contamination and Toxicology 42(2): 182-192

Adult water fleas, Daphnia magna Straus, and the early life stages of carp, Cyprinus carpio L., were exposed to river water near an iron sulfate dosage installation to determine the effects of phosphate precipitation with iron(II)sulfate. Tests were conducted during two consecutive dosage periods of 3,000 and 5,000 kg/day iron sulfate (520 and 620 microg/L total Fe respectively) at the dosage site and at a reference site (60 microg/L total Fe) further downstream. Though survival remained unaffected, the filter-feeding D. magna accumulated iron and other metals at the dosage site. Viability of offspring was strongly reduced at the highest dose of iron sulfate compared to the lower dose and the reference site. Specific staining of microscopic sections revealed a strong accumulation of iron(III) in the digestive tract. The egg membranes of the carp embryos accumulated not only substantial amounts of iron but also other metals, including cadmium and aluminium. Hardly any of the metals passed the egg membranes and reached the embryos. After hatching the accumulation of cadmium by the larvae increased rapidly and iron levels were elevated at the highest dose of iron sulfate, parallel with the onset of exogenous feeding. Iron(III) particles were observed in the intestines at histological examination. In addition, at 620 microg/L total Fe a strong increase in whole-body levels of the stress hormone cortisol was observed in the carp larvae, indicating a physiological response to adverse conditions. The results indicate that the rapid oxidation of free Fe2+ into iron(III) forms and the precipitation of iron(III) into larger particles resulted in a low acute toxicity of the river water directly at the iron sulfate dosage site. The observed chronic and sublethal effects at the dosage site probably resulted from the intestinal uptake of iron(III) and other toxic metals associated with the food particles. However, these effects could no longer be observed at the reference site, 9 km downstream from the dosage site.


PMID: 11815809

DOI: 10.1007/s00244-001-0001-x

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Adams, R.D., 1975: Certain notable clinical attributes of the histiocytic sarcomas of the central nervous system. By the term reticulum cell sarcoma we denote any tumor composed predominantly of undifferentiated cells, some of which have the qualities of histiocytes. The origin of such CNS tumors may be traced to circulating monocytes, perithelial ro meningea...

Bang N.U.; Wilhelm O.G.; Ehrlich H.J., 1992: Coronary thrombolysis current problems future solutions. Hollenberg, C P And H Sahm (Ed ) Biotec, 4 Therapeutics, Diagnostics, New Vaccines, Interferon Treatment And Plasma Proteins; Meeting Viii+183p Gustav Fischer Verlag: New York, New York, Usa; Stuttgart, Germany Illus Paper 169-179

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Nikawa, T.; Tokuoka, K.; Teshima, S.; Ikemoto, M.; Towatari, T.; Alpers, D.H.; Rokutan, K.; Kishi, K., 1999: Overexpression of cathepsin J propeptide modulates the differentiation of human adenocarcinoma Caco-2 cells. Gastroenterology 116(4 PART 2): A912-A913, April

Yamamoto S.; Monna T.; Kobayashi K.; Uchida H.; Ono T.; Okamoto N.; Enomoto T.; Kamata T.; Kawai K.; E.A., 1975: Early antibody responses and clinical course in post transfusion hepatitis. Japanese Journal of Medicine 14(2): 128-129

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Smith, D.B.; Scarffe, J.H.; Wagstaff, J.; Johnston, R.J., 1987: Phase II trial of rDNA alfa 2b interferon in patients with malignant carcinoid tumor. Fourteen patients with malignant carcinoid tumors were treated with rDNA alfa 2b interferon by sc injection three times per week. Treatment was started at a dose of 2 milliunits/m2, with escalations to 3, 5, 7, and 10 milliunits/m2 at 2-week inter...

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Rozier, J.; Sabbah, P.; Bordes, J.P.; de Toffol, B.; Dallocchio, M., 1984: Biofeedback of blood pressure information in man: changes in the electroencephalographic power spectrum. Modifications of attention in cardiovascular field with the aim of a perceptive activity focused on a vegetative feature may include in man: a specific arousal component linked to significant visual information (blood pressure); an unspecific atte...