This study investigated the copulatory behaviour of the lumbricid earthworm Eisenia fetida (Savigny, 1826) in a natural population, and the uniparental reproduction of E. fetida and E. andrei Bouché 1972, two closely-related species. Sperm transfer occurred in 61 % of the matings observed, of which 88.2 % showed bi-directional sperm transfer, 9.8 % unidirectional sperm transfer and one earthwor...

In this study, we used two different types of bioassay, a contact filter paper toxicity bioassay and a soil toxicity bioassay, to compare the acute toxicity of twenty-four insecticides belonging to six chemical categories on earthworm species, Eisenia fetida. Results of the contact filter paper toxicity bioassay indicated that neonicotinoids were super toxic to E. fetida (48 h-LC(50) value rang...

The efficiency of biocomposting bottom silt deposits was evaluated in laboratory conditions. process is reproduced taking into account the main technological parameters and using lowland peat, microbial concentrate vermiculture as basic components. composition includes strains genera Bacillus spp., Clostridium Pseudomonas causing biosolubilization a complex organomineral substrate - sediments. ...

Earthworms can 'biotransform' or 'biodegrade' chemical contaminants, rendering them harmless in their bodies, and can bioaccumulate them in their tissues. They 'absorb' the dissolved chemicals through their moist 'body wall' due to the interstitial water and also ingest by 'mouth' while soil passes through the gut. Since the advent of the nanotechnology era, the environmental sink has been cont...

The aim of this study is to investigate the stabilization tannery sludge compost mixed with cow manure at different ratios by employing an epigeic earthworm Eisenia foetida and bioaccumulation chromium in earthworms. Organic (M) (S) were certain proportions, moistened worms added. Mixing realized as 100% M (M100S0), 70% + 30% S (M70S30), 50% (M50S50) (M30S70). experiment was carried out a const...