Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Chironomus tentans"”.
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Histone modification during the induction of tyrosine transaminase
… the giant chromosomes in the salivary glands of Chironomus tentans provided the first indications that the earliest intracellular effects of hormone administration are at the genetic level. Injection of the insect moulting hormone, ecdysone, into last instar larvae of Chironomus tentans results …
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Synthese und Glycosidasehemmung von Thio-analogen Kohlenhydraten
… der Chitinasen von Serratia marcescens, Chironomus tentans, Acanthocheilonema viteae und Hevaea brasiliensis sowie der N-Acetyl-glucosaminidase von Chironomus tentans getestet. In einigen Fällen ergab sich eine Hemmung (IC50) im µM-Bereich.
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Techniques for Evaluating Power Plant Discharges Using In-Situ Breakdown and Flow Though Laboratory Sediment Bioassays
… commonly used sediment test organisms including Chironomus tentans, Daphnia magna and Hyalella azteca for survival and growth endpoints in 10-day exposures. Survival and growth effects for Corbicula juveniles were seen at 25 ppb copper in the sediment.
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The influence of land use on the quality of seston in southern Appalachian stream ecosystems
… of associated assemblages and growth rates of Chironomus tentans fed seston. There was more seston in streams draining less forested catchments but proportionally that material was less organic. Ultrafine particles dominated seston size classes at all sites and was higher in streams with less …
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Ecotoxicological and genetic effects of a mixture of heavy metals on selected aquatic macroinvertebrates
… act as a source of metals to benthic organisms. Chironomus tentans (Diptera: Chironomidae) were exposed to synthetic sediment spiked with a mixture of metals at concentrations similar to those found in the Arkansas River in a series of toxicity and bioaccumulation experiments. Results of these …
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The Impacts of Acid Mine Drainage on the Black Creek Watershed, Wise County, Virginia
… different than the reference for survival of Chironomus tentans and reproduction of D. magna. One location was significantly different than the reference for survival of D. magna. In the sediment tests completed after two months, survival of C. tentans was only different from the control in …
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Identification of Ecosystem Stressors in Developing an Enhancement Plan for the Leading Creek Watershed, Meigs County, Ohio
… and growth, </i>Daphnia magna</i> and <i>Chironomus tentans</i> sediment toxicity, stormwater acute toxicity, qualitative invertebrate richness and Ephemeroptera, Plecoptera and Trichoptera (EPT) abundance, percent AML area, concentrations of sodium, copper, zinc, iron, manganese, …