The major sources of heavy metal pollution in Estonia are oil shale industry and oil shale combustion. There is an utmost need to monitorsoil pollution with heavy metals in this region. Earthworms are good accumulators of heavy metals and can be used as bioindicators. Endogeic species Aporrectodea caliginosa and Aporrectodea rosea as well as anecic species Lumbricus terrestris are good bioindic...

The collisions of two simultaneously generated impulses in the giant axons of both earthworms and lobsters propagating in orthodromic and antidromic direction are investigated. The experiments have been performed on the extracted ventral cords of Lumbricus terrestris and the abdominal ventral cord of a lobster, Homarus americanus, by using external stimulation and recording. The collision of tw...

Cleavage specificity of two fibrinolytic enzymes from Lumbricus rubellus [Nakajima, N., et al., Biosci. Biotechnol. Biochem., 57, 1726-1730 (1993) and 60, 293-300 (1996)] was investigated using beta-amyloid 1-40 and oxidized insulin B-chain as peptide substrates. The serine protease, F-III-2, cleaved the former substrate at six sites, and the latter at five sites. F-II digested them at six and ...

The miniature excitatory postsynaptic currents (MEPCs) of the muscle cells of the earthworm Lumbricus terrestris were recorded by glass microelectrodes. In a single synaptic zone, three types of MEPC were recorded: a fast single-exponential type that decayed with tau =0.9 ms, a slow single-exponential with tau = 9.2 ms and a two-exponential MEPC with tau = 1.3 and 8.5 ms, respectively. The musc...

El presente estudio buscó determinar la eficiencia de lombriz tierra (Lumbricus terrestris) y roja californiana (Eisenia foetida) en el tratamiento las aguas residuales del Distrito Chachapoyas (Perú). Para ello, se aplicó adaptación dos especies durante un periodo siete días, luego inocularon al sistema lombrifiltro conformado por estructuras madera con cuatro capas, finalmente empleó tanque a...

El objetivo de la investigación fue determinar eficiencia del sistema Tohá para depurar aguas residuales camal municipal ciudad Bagua, Región Amazonas, Perú, a través Lombrifiltros constituidos por lombrices roja californiana (Eisenia foetida) y lombriz tierra (Lumbricus terrestris). Se realizó compra en el distrito Chachapoyas se obtuvo con excavaciones, seguidamente fueron colocados individua...