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Effects of organophosphorus insecticide and inorganic nutrients on the planktonic microinvertebrates and algae in a prairie wetland


, : Effects of organophosphorus insecticide and inorganic nutrients on the planktonic microinvertebrates and algae in a prairie wetland. Archiv fur Hydrobiologie 147(3): 373-399

Manipulations of the planktonic microinvertebrate community in a prairie wetland were carried out in experimental enclosures in Delta Marsh, Manitoba, Canada. LorsbanTM 4E (active ingredient chlorpyrifos) was applied once to treatment enclosures at a nominal concentration of 10 micro g/L. Additions (thrice weekly) of inorganic nitrogen and phosphorus were made to treatment enclosures for the duration of the 10-week experimental period.

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Yeap, B.B.; Flicker, L., 2014: Hormones and cardiovascular disease in older men. Older men have lower circulating testosterone (T) and insulin-like growth factor-I (IGF-I) but higher levels of thyrotrophin (TSH) compared with younger men, and exhibit poorer health. Whether age-associated differences in hormone levels are causa...

Muselin, F.; Igna, V.; Trif, A., 2006: Exposure to hexavalent chromium consequences on semen quality in rats. A report on the effect of hexavalent chromium exposure on the semen character of male rats was presented. Highlight of the report focused on the toxicity levels of potassium dichromate (Cr VI) and its effect on sperm count, motility and morphology...

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Altinozlu, Hasim, 2004: Flora of the natural conservation area in Adana-Yumurtalik Lagoon (Turkey). This study includes the natural and cultivated plants in the Natural Conservation Area in Yumurtalik Lagoon. In an evalution of 450 herbarium specimens collected from this area in 1997 and 1998, a total of 186 genera and 234 species belonging to 6...

Martinez-Gomez, F.; Hernandez-Rodriguez, S.; Ruiz-Sanchez, P.; Molina-Rodero, R.; Martinez-Moreno, A., 1990: Hypodermosis in the red deer Cervus elaphus in Cordoba, Spain. The prevalence of red deer hypodermosis and the life cycle of Hypodermia diana Brauer 1858 in three provinces of the south of Spain, Córdoba, Jaen and Ciudad Real, were studied by inspecting 254, thirty-eight and thirty-five deer from each provin...

Ginsberg, S.D.; Crino, P.B.; Weingarten, J.A.; Lee, V.M.Y.; Eberwine, J.H.; Trojanowski, J.Q., 1997: Senile plaques from Alzheimers disease brain contain multiple mRNAs. Society for Neuroscience Abstracts 23(1-2): 536