Stem cell system in sexual and asexual reproduction of Enchytraeus japonensis (Oligochaeta, Annelida) Chikako Yoshida-Noro, Makoto Takeo, Mutsumi Sugio, Shishin Kawamoto, Shin Tochinai Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Narasihno, Chiba, Japan Department of Dermatology, New York University School of Medicine, New York, United States De...

Two new species of Drawida Michaelsen, 1900, namely Drawida polydiverticulata Narayanan & Julka, sp. n. and Drawida thomasi Narayanan & Julka, sp. n., are described from material collected from the Indian state of Kerala, which lies in the Western Ghats biodiversity hotspot. Drawida elegans Rao, 1921, Drawida kanarensis Stephenson, 1917, Drawida modesta Rao, 1921, Drawida somavarpatana Rao, 192...

Macrozoobenthos has an important role in the waters. The river is one example of a water body where macrozoobenthos can be used as indicator pollution. This study aims to calculate community structure and quality Ogan River around Baturaja City. Sampling was carried out by purposive sampling method 5 stations, which each station had points determined based on differences microhabitat, namely st...

Stem cell system in sexual and asexual reproduction of Enchytraeus japonensis (Oligochaeta, Annelida) Chikako Yoshida-Noro, Makoto Takeo, Mutsumi Sugio, Shishin Kawamoto, Shin Tochinai Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, Narasihno, Chiba, Japan Department of Dermatology, New York University School of Medicine, New York, United States De...

In this study, it was aimed to evaluate the water quality of Çoruh Basin using BMWP (Biological Monitoring Working Party) index, ASPT (Average Score Per Taxon) Shannon-Wiener Diversity Index, EPT (Ephemeroptera Plecoptera Trichoptera taxa), EP taxa) index scores and benthic macroinvertebrates. The macroinvertebrates were collected from 54 stations at basin between 2014-2016 years. Standard hand...

Communities of aquatic macroinvertebrates, fish density and biomass, and environmental variables were investigated in three Patagonian mountain rivers affected by urbanization. The rivers Las Minas, Esquel and Carbón that flow through the towns of Cholila, Esquel and Corcovado, respectively (northwest Chubut, Argentina) were selected to assess the degree of impairment. A reference site and an u...

To assess the occurrence, spatial distribution and species composition of small infauna on a mangrove shore, core samples were taken along a transect in Missionary Bay at Hinchinbrook Island, north-east Australia. Three sites were arranged within the mangrove forest and one site was located in an adjacent mudflat. The sites were surveyed four times between November 1988 and October 1989. Based ...

Three new species from the Mexican states of Tabasco and Chiapas are added to the acanthodrilid earthworm genus Ramiellona, R. microscolecina sp. nov., R. tojolabala sp. nov. and R. teapaensis sp. nov. They belong to a group of species with penial setae and last pair of hearts in segment 12. All are holandric and the spermathecae have either a flat circular diverticle in a segment anterior to t...