Results 61 to 70 of about 1,209 (179)

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

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  

Die Rotatorienfauna einiger Gewässer des Naturschutzgebietes „Heiliges Meer“ im Kreis Steinfurt [PDF]

open access: yes, 2010
Die planktontische und die benthische Rotatorienfauna des NSG Heiliges Meer, Krs. Steinfurt, Nordrhein-Westfalen, wurde durch monatliche Beprobung von eutrophen, oligotrophen und dystrophen Gewässern zwischen Oktober 1999 und Oktober 2000 untersucht ...
Koste, Walter, Terlutter, Heinrich
core  

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

Zur Kenntnis der limnischen Rotatorienfauna Jamaikas (Rotifera) : Teil 2 [PDF]

open access: yes, 2012
Während der zweiten Feldphase (März bis April 1994) des Forschungsvorhabens über die Rotatorienfauna Jamaikas wurden 39 Proben genommen. Es konnten 135 Morphen nachgewiesen werden, davon 120 monogononte und 15 digononte Formen.
Janetzky, Wolfgang   +2 more
core  

HIGH RATE NITRIFICATION TREATMENT OF AMMONIUM NITROGEN POLLUTED GROUNDWATER USING A NOVEL ACRYL-RESIN FIBER FOR BIOMASS ATTACHMENT [PDF]

open access: yes, 2004
Joint Research on Environmental Science and Technology for the ...
Fujii, Takao   +4 more
core  

Climatic vulnerabilities and ecological preferences of soil invertebrates across biomes. [PDF]

open access: yes, 2020
Unlike plants and vertebrates, the ecological preferences, and potential vulnerabilities of soil invertebrates to environmental change, remain poorly understood in terrestrial ecosystems globally.
Abades, Sebastián   +12 more
core   +1 more source

Die Rotatorienfauna des Dümmers unter besonderer Berücksichtigung der sessilen Arten : Teil 1 [PDF]

open access: yes, 2012
In dem Zeitraum von Dezember 1994 bis Oktober 1995 wurde die Rotatorienfauna des Dümmers, einem nordwestdeutschen Flachsee, untersucht. Im Abstand von ungefähr vier Wochen sind an 15 Untersuchungstagen insgesamt 95 Litoral- und Pelagialprobestellen ...
Koste, Walter, Leutbecher, Christine
core  

Acidophilic phytoplankton in Argentina: the case study of Lake Caviahue (Patagonia) [PDF]

open access: yes, 2014
This article presents a review of the studies carried out over a 10-year period in Lake Caviahue, a natural acidic lake located in Patagonia. The main patterns of the phytoplankton populations are described.
Beamud, Sara Guadalupe   +1 more
core   +2 more sources

ENCENTRUM ESSEXIS SP. N. (MONOGONONTA: DICRANOPHORIDAE), A NEW ROTIFER INHABITING STREAM BENTHOS FROM EAST ENGLAND [PDF]

open access: yes, 2014
A new species of Rotifera belonging to the genus Encentrum (Monogononta, Dicranophoridae) is described from benthos of the Blackwater River, East Anglia, Essex, England, UK. Encentrum essexis sp. n.
De Smet, Willem H.   +1 more
core  

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