نتایج جستجو برای: chironomid genera
تعداد نتایج: 28194 فیلتر نتایج به سال:
To analyze the possible major T cell recognition site(s) of chironomid antigens, we established human T cell lines and clones (CD3+ 4+ 8-) reactive to soluble extracts of the adult midge of Tokunagayusurika akamusi (TAA) and/or Chironomus yoshimatsui (CYA). All T cell lines and clones proliferated heavily in response to relatively large molecular weight fractions of TAA (MW greater than or equa...
First record of larvae of Chironomidae (Insecta, Diptera) as prey of Temnocephala sp. (Platyhelminthes, Temnocephalidae), an ectosymbiont on larvae of Corydalidae (Megaloptera). This study constitutes the first record of Temnocephala Blanchard, an ectosymbiont on Corydalidae, as a possible predator of chironomid larvae. Twenty-eight Corydalidae larvae (Corydalus and Protochauliodes) were examin...
Species richness and species turn-over of Chironomidae was studied in irregularly flooded wetlands of the River Dalälven flood-plains in central Sweden. The chironomid fauna, sampled with emergence traps in six wetlands over six summers, contained as much as 135 species, and the cumulative species curves indicated that the regional species pool contain several more species. Recurrent irregular ...
For the implementation of the Water Framework Directive we need to develop an informative and cost-effective set of biological monitoring and assessment methods, especially for remote areas. Chironomids are known to be an abundant and speciesrich group that dominate the aquatic macroinvertebrate assemblages in the north and therefore should be an integral part of monitoring and assessment plans...
Chironomids (Diptera: Chironomidae) are the most widely distributed and often the most abundant insect in freshwater. They undergo a complete metamorphosis of four life stages, of which the egg, larva, and pupae are aquatic and the adult is terrestrial. Chironomid egg masses were found to be natural reservoirs of Vibrio cholerae and Aeromonas species. To expand the knowledge of the endogenous b...
Many hydrobiological studies have dealt with the autecology of species within family Chironomidae and discussed factors affecting distribution. The aim present research is to consider most important chironomid Habitat type (lentic, lotic, krenal, rhithral, etc.), water temperature, conductivity, trophic status are confirmed key controlling their assemblage structure. Here, we introduce term “mo...
Multiparasitism by different species of larval water mites was observed on an adult midge collected in Hokkaido, northern Japan. Water mite larvae Hygrobates sp. and Unionicola inactive stage were discovered from a single chironomid female the subfamily Chironominae. Eight parasitized dorsum, four venter first to fourth abdominal segments midge. One attached trochanter left midleg one femur rig...
objective: in this study, the effect of diet food (soybeans, egg yolk and chicken manure) on biomass weight and body composition (the amount of protein, fat, moisture and ash) chironomid larvae were examined. methods: for this purpose, 2.5 grams of food per coconut considered in the period, with three replicates and chironomid larvae during the period of 15 days in plastic pans were kept in nut...
To predict the response of aquatic ecosystems to future global climate change, data on the ecology and distribution of keystone groups in freshwater ecosystems are needed. In contrast to mid- and high-latitude zones, such data are scarce across tropical South America (Neotropics). We present the distribution and diversity of chironomid species using surface sediments of 59 lakes from the Andes ...
Western Ireland, located adjacent to the North Atlantic, and with a strongly oceanic climate, is potentially sensitive to rapid and extreme climate change. We present the first highresolution chironomid-inferred mean July temperature reconstruction for Ireland, spanning the lateglacial and early Holocene (LGIT, 15–10 ka BP). The reconstruction suggests an initial rapid warming followed by a sho...
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