Results 171 to 180 of about 3,359 (209)

Aging and control of the reproduction in Brachionus calyciflorus (pallas) (rotatoria)

Experimental Gerontology, 1977
Abstract The study of eggs laying of amictic females in defined conditions of temperature light, medium, food and population density demonstrate that the maternal age significantly affects the rate of mictic females produced in F1: this rate is highly and negatively correlated with the maternal age.
C, Rougier, R, Pourriot
openaire   +2 more sources

Effect of Microcystis aeruginosa on the rotifer Brachionus calyciflorus at different temperatures

Bulletin of Environmental Contamination and Toxicology, 2011
Rotifers are one of the smallest metazoans. They serve as a model organism for ecotoxicological studies. More than 60% of the lakes in China are increasingly eutrophic and they are susceptible to blooms of Microcystis aeruginosa. We investigated the effects of M.
Xiong, Zhang, Hong, Geng
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Does excess carbon affect respiration of the rotifer Brachionus calyciflorus Pallas?

Freshwater Biology, 2006
Summary1. Herbivorous zooplankton maintain a rather constant elemental composition in their body mass as compared with the variability commonly encountered in their food. Furthermore, their high phosphorus (P) and nitrogen (N) content means that they often face an excess of carbon (C) in their diet.
Jensen, T.C., Anderson, T.R., Daufresne, M., Hessen, D.O.   +3 more
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Toxicity assessment of perfluorinated carboxylic acids (PFCAs) towards the rotifer Brachionus calyciflorus

Science of The Total Environment, 2014
The effects of acute toxicity, 3-day population growth and morphological effects of perfluorinated carboxylic acids (PFCAs) with carbon chain lengths of 2-6 on the freshwater rotifer Brachionus calyciflorus were investigated. The results indicated that the 24-h median lethal concentration (LC50) values of trifluoroacetic acid (TFA), perfluoropropionic ...
Yujuan Wang, Junfeng Niu, Lilan Zhang, Jianghong Shi   +3 more
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Respiration of different stages and energy budgets of juvenile brachionus calyciflorus

Hydrobiologia, 1980
Respiration data for different stages of Brachionus calyciflorus, fed with three concentrations of Kirchnerielia lunaris at 20°C, are presented. Increasing oxygen consumption from 4.1 to 4.6. 10−3 μl/h x ind. with food decreasing from 5.106 to 106 and 4.105 cells/ml has been found for adult females with one egg, but other age groups showed divergent ...
openaire   +1 more source

Monoxenic cultivation of the rotifer Brachionus calyciflorus in a defined medium

Oecologia, 1970
Techniques are described for the initiation and maintenance of axenic cultures of Euglena gracilis strain Z and monoxenic cultures of Brachionus calyciflorus variety pala with the Euglena, using in both the same defined, buffered medium. The medium, which is inorganic-except for the citrate chelating agent, the buffer, and vitamins B1 and B12 - has ...
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On temperature acclimation in an experimental population of Brachionus calyciflorus

Hydrobiologia, 1983
The influence of parental culture temperature regime on population parameters of offspring was investigated. Fecundity and net reproduction are influenced by the temperature conditions of the previous generation.
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A study of the freshwater rotifer Brachionus calyciflorus in Pekanbaru, Riau, Indonesia

Hydrobiologia, 1997
Brachionus calyciflorus is one of freshwater rotifers found in fish ponds in Pekanbaru, Riau, Indonesia. Its density varied depending on that of phytoplankton. Maximum of 2.5 × 103 ind. 1−1 was found in ponds fertilised with animal wastes.
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Acute toxicity of several pesticides to rotifer (Brachionus calyciflorus)

Bulletin of Environmental Contamination and Toxicology, 1992
A, Fernández-Casalderry, M D, Ferrando, E, Andreu-Moliner   +2 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly