aquatic invertebrates are the major group of freshwater animals in aquatic ecosystems in terms of biology and food chain. this study was conducted to identify benthic communities in four stations of the abgarmeh river (saleh abad, the ilam province) during 2007-2008. in this study eighteen families of benthose such as naididae, tubificidae, lumbricidae, erpobdellidae, gammaridae, haliplidae, co...

Although the toxicokinetics of organic pollutants in soil invertebrates under optimal and constant temperature has been widely reported, their uptake, elimination, bioaccumulation suboptimal temperatures, especially daily fluctuating (FT) regimes have received only little research attention. In this study, phenanthrene (PHE) Enchytraeus albidus (Oligochaeta) different an FT regime were investig...

Two new megadrile earthworms from the steppes, the first species wholly from Outer Mongolia, are ascribed to the partially parthenogenetic Eisenia nordenskioldi (Eisen, 1879) species-complex. Taxonomic justification of sympatric Eisenia nordenskioldi mongol and Eisenia nordenskioldi onon ssp. n. are supported by mtDNA COI barcodes. The unreliability of molecular differentiation based on voucher...