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1

Chironomus f.l. plumosus - Chironomus sp. czy Chironomus spp.

100%

Jablonska-Barna I., Luczynski M.

Idee Ekologiczne. Seria:Szkice

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2003

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tom 08s.61

61

2

High mobility group proteins: components that modulate insect chromatin

75%

Wisniewski J. R.

Zoologica Poloniae

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1998

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tom 43

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nr 1-4

3

Field experiment reveals no relation between substrate composition and Chironomus abundance

75%

Kajak Z., Prus P.

Polish Journal of Ecology

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2001

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tom 49

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nr 1

4

Cytogenetic characteristics of species of the Chironomus genus [Diptera, Chironomidae] from Lake Luknajno biosphere reserve [Northwest Poland]

63%

Jablonska-Barna I., Michailova P.

Oceanological and Hydrobiological Studies

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2009

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tom 38

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nr 2

77-81

5

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Behavioural toxicology of midge larvae Chironomous sp. after acute in situ exposure of different industrial effluents and drinking water

63%

Bhunia D., Sarkar S., Banerjee K., Nandy A., Talapatra S. N.

International Letters of Natural Sciences

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2014

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tom 14

Behavioural activities in relation to toxicological aspects involve behavioural changes of aquatic organisms under the exposure of a contaminant. The present study aims to know behavioural activities of midge larvae Chironomus sp. at the in-situ acute exposure of different chemicals containing wastewater viz. lead-acid battery industrial effluent, mixed industrial effluent and fresh tap water (chlorinated) as drinking water in comparison to control (dechlorinated) water sample (aged tap water). The Chironomus larvae were kept in three different experimental chambers (perforated wall test vessels) with the exposure of different water samples. These samples were made with no dilution, 50 % dilution, 2.5 % dilution and control water sample. The behavioral activities for larvae of Chironomus sp. were measured at 0h, 2h, 24h and 48 h in in-situ condition. The behavioral activities viz. crawling, looping, ventilation, paralyses and subsequently death of the larvae were recorded in the field condition. A significant differences (P < 0.05, P < 0.01 and P< 0.001) were observed with increasing time of exposure while in few cases the data were increased without significance level. It was recorded that after exhibiting behavioural activities viz. crawling, looping, ventilation and paralyses finally all species were died 100 % of the population in lead acid battery effluent following both 24h and 48hr exposure. In addition, death of larvae were 70 % in mixed industrial effluent and 50 % in fresh tap water (chlorinated) after 48h exposure as compared to control sample water. In conclusion, the present results indicate that the larvae of Chironomous sp. are suitable indicators in the evaluation of the effluent quality in the studied stream, potential to know by behavioural toxicological study for heavy metals and organic pollution. Although it is a preliminary observation by assessing behavioural toxicology but future study in relation to biochemical and genetic damage of Chironomous larvae with the exposure of toxic water samples will provide bigger view.

6

The role of heterochromatin in the speciation of family Chironomidae, Diptera

63%

Michailova P. V.

Folia Biologica

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1994

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tom 42

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nr 3-4

7

Water quality of the River Ganga [Garhwal Himalayas]

51%

Singh H. R., Nautiyal P., Dobriyal A. K., Pokhriyal R. C., Negi M., Baduni V., Nautiyal R., Agarwal N. K., Nautiyal P., Gautam A.

Acta Hydrobiologica

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1994

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tom 36

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nr 1

3-15

The water quality of the River Ganga was monitored using certain physical, chemical, and biological characteristics. As compared with abiotic, the biological quality was found to vary considerably. The quanta and spectra of plankton and macrozoobenthos increased with the river`sdescent. The quanta - spectra relationship for the selected components (r=0,72,0,69)was found to be meaningful. The study indicates an oligotrophic state of the River Ganga

8

Insecticidal activity - a new bioactive property of the cyanobacterium Fischerella

51%

Becher P. G., Juttner F.

Polish Journal of Ecology

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2006

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tom 54

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nr 4

Cyanobacterial biofilms serve as food and shelter for benthic invertebrates, such as juvenile insects. Chironomids are often the most widely distributed and abundant insect larvae in freshwater ecosystems. As a consequence of high grazing pressure, effective defence mechanisms can be expected in biofilm-forming organisms. The presence of chemical defence was studied in 12 axenic and monoxenic cyanobacterial species. Flakes of cyanobacterial biofilms were offered to Chironomus riparius (Meigen) over a period of 8 days. Mortality and body-length of the surviving animals were used as indicators for the toxicity of the cyanobacteria and their suitability as food. Toxicity and inhibition of larval growth were found for several cyanobacteria tested. Fischerella sp. (ATCC 43239) was the most active and caused 100% mortality in Chironomus larvae within 24 h. Mortality was also high (87%) for larvae fed with Aphanothece sp. Moderate toxicity (40–60% mortality) was found for Calothrix sp. (PCC 7507), C. braunii Bornet et Flahault, C. thermalis (Schwabe) Hansgirg and a cyanobacterium of the LPP group designated JU 5. Mortality of 7–33% was observed for Calothrix parietina (Nägeli) Thuret, Oscillatoria brevis (Kützing) Gomont, Cylindrospermum sp., Nostoc sp., Calothrix anomala Mitra and a cyanobacterium of the LPP group designated 5 KB. Differences depending on the cyanobacterial food offered were also seen in the lengths of surviving larvae. Fischerella sp. (ATCC 43239) was studied in more detail to chemically characterise the observed insecticidal activity. The insecticidal activity could be extracted with 60% aq. methanol from the fresh biomass and caused 100% mortality in Chironomus. A literature survey was performed on the bioactive compounds so far isolated and characterised from Fischerella and related Stigonematales. It is noticeable that no insecticidal activity has been shown for any of these compounds yet. The newly found insecticidal property of Fischerella may lead to the identification of bioactive compounds which may be important as chemical defence against insect grazers.

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