Results 61 to 70 of about 1,214 (188)

Effect of Philodina erythrophthalma and its secretion on the performance of activated sludge in sequencing batch reactor for wastewater treatment

open access: yesDesalination and Water Treatment
This study explores the impact of Philodina erythrophthalma (rotifers) and its secretions on the performance of activated sludge in biological sewage treatment. The effects were assessed by comparing three reactors: a control (C) reactor without rotifers,
Lin Lin   +7 more
doaj   +1 more source

Über die Rotatorienfauna in Bromelien-Phytotelmata in Jamaika (Aschelminthes: Rotatoria) : mit 2 Tabellen [PDF]

open access: yes, 2012
Während eines Forschungsaufenthaltes in Jamaika, August bis Oktober 1991, wurden von einer Gruppe der AG Aquatische Ökologie der Universität Oldenburg/O. aus Phytotelmata der bodenständigen Bromelie Aechmea paniculigera GRISEB zwei Probenserien entnommen,
Janetzky, Wolfgang   +2 more
core  

Rotiferan Hox genes give new insights into the evolution of metazoan bodyplans [PDF]

open access: yes, 2017
The phylum Rotifera consists of minuscule, nonsegmented animals with a unique body plan and an unresolved phylogenetic position. The presence of pharyngeal articulated jaws supports an inclusion in Gnathifera nested in the Spiralia.
Fröbius, Andreas C., Funch, Peter
core   +1 more source

ROTIFÈRES, ÉPIGÉNÉTIQUE ET ÉVOLUTION [PDF]

open access: yes, 2009
Le second document joint est un long résumé en ahglais de l'article.International audienceAprès avoir rappelé mes motivations initiales pour entreprendre des recherches sur les rotifères, le présent travail présente certaines questions fondamentales ...
Clément, Pierre
core   +1 more source

Rising temperatures, changing waters: The influence of abiotic factors on freshwater zooplankton community

open access: yesDesalination and Water Treatment
In recent years, anthropogenic pollution caused changes in environmental conditions, influencing the community structure and biodiversity in aquatic ecosystems.
Ahmet Altindağ, Duygu Berdi̇
doaj   +1 more source

On the Fresh-Water Microfauna of the Antarctic Region. II. Stabilityof Faunistic Composition of Antarctic Microorganisms [PDF]

open access: yes, 1967
The colonization of Antarctica by microorganisms has been analyzed during 1963-1966 by four ways of approach-faunological, sociological, biogeographical, and experimental-using material mainly from Langhovde, Syowa Station, McMurdo Sound, and the Ongul ...
Jukichi Shimoizumi, Minoru Sudzuki
core   +1 more source

The biological indicators studies of zooplankton in the Tigris River at the city of Baghdad [PDF]

open access: yes, 2017
The study of biological indicators for zooplanktonis important factors in environmental studies to show the extent of the surrounding organisms, distribution and deployment environment affected.
Dawood, A. T. (AbdulSalam)   +2 more
core  

Commensalism and parasitic infestation in crayfish (Astacus leptodactylus Eschscholtz, 1823) of Aras Dam Reservoir, Iran [PDF]

open access: yes, 2017
The freshwater crayfish of the Aras Reservoir is an important economic fisheries resource of West Azarbaijan, Iran. This study was conducted to evaluate the prevalence of parasitic infestation of Crayfish seasonally in this area in 2010.
Mehrabi, M.R.   +3 more
core  

Degenerate Tetraploidy Was Established Before Bdelloid Rotifer Families Diverged [PDF]

open access: yes, 2008
Rotifers of Class Bdelloidea are abundant freshwater invertebrates known for their remarkable ability to survive desiccation and their lack of males and meiosis.
Hur, Jae H.   +3 more
core   +2 more sources

Food and feeding habits of Synodontis nigrita from the Osun River, SW Nigeria [PDF]

open access: yes
An investigation was conducted into the food and feeding habits of Synodontis nigrita from the Osun River near Epe, Lagos, Nigeria. The food items in the stomach of the S.
Olojo, E.A.A.   +2 more
core  

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