Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure

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Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure.

During acute exposure, polycyclic aromatic compounds (PACs) act mainly by narcosis, but during chronic exposure the same compounds may exert sublethal life cycle effects. The aim of this study was therefore to evaluate the chronic effects of sediment spiked PACs on the emergence of the midge Chironomus riparius. Three isomer pairs were selected, and 28-day LC50 values and 50% emergence times (E...

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The genetic diversity of natural populations and the increase in global temperature are becoming important issues in ecotoxicological research. We investigated the combined effects of 3 different temperature levels and 6 different levels of genetic diversity on the life history parameters of Chironomus riparius. Inbreeding and loss of genetic variation are major threats to small and endangered ...

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chronic toxicity of mercury (hgcl2) to the benthic midge chironomus riparius

in most aquatic ecosystems mercury accumulates more in the sediment than in water column. however, due to limited eco-toxicological data, it is difficult to predict the toxicity of these sediments. the present study evaluated the effects of inorganic mercury in spiked sediment on the survival, growth, and emergence of the midge chironomus riparius and compared the results to mercury concentrati...

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ژورنال

عنوان ژورنال: Environmental Pollution

سال: 2008

ISSN: 0269-7491

DOI: 10.1016/j.envpol.2007.04.027