Results 211 to 220 of about 9,065 (260)
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Rapid adaptation of Brachionus angularis (Rotifera) to invasion by Brachionus calyciflorus
Hydrobiologia, 2019To test the hypothesis that Brachionus angularis can rapidly develop local adaptation to invasion by other monogonont rotifers, replicate populations of B. angularis were exposed to two environments invaded by B. calyciflorus at different inoculation densities and an environment free from invaders.
Yi-Long Xi +6 more
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Internationale Revue der gesamten Hydrobiologie und Hydrographie, 1995
AbstractThe widely distributed Brachionus calyciflorus was studied for morphological variation based on material from all tropical areas. The subspecies B. calyciflorus borgerti Apstein is redescribed and its subspecific status affirmed. Various forms with local distributions were noted and described and the morphological differences are attributed to ...
L. A. Kutikova, C. H. Fernando
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AbstractThe widely distributed Brachionus calyciflorus was studied for morphological variation based on material from all tropical areas. The subspecies B. calyciflorus borgerti Apstein is redescribed and its subspecific status affirmed. Various forms with local distributions were noted and described and the morphological differences are attributed to ...
L. A. Kutikova, C. H. Fernando
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Acute toxicity and bioaccumulation of endosulfan in rotifer (Brachionus calyciflorus)
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 19911. The acute toxicity of endosulfan was determined for the freshwater rotifer Brachionus calyciflorus. 2. The mean 24 hr LC50 value for endosulfan was 5.15 ppm with a coefficient of variation of 14.7%. 3. Rotifers were exposed at two sublethal concentrations (1.5-2.0 ppm) of endosulfan for bioaccumulation experiments, for an exposure time of 24, 48, 72
A, Fernández-Casalderrey +3 more
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Cyclomorphosis of Brachionus calyciflorus Pallas
Hydrobiologia, 1965The cyclomorphosis ofBrachionus calyciflorus collected from a pond in Pilani, India has been studied. It has been found that the production of additional structures such as posterolateral spines is mainly due to the sufficient quantity of food available for them.
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Endosulfan and diazinon toxicity to the freshwater rotifer Brachionus calyciflorus
Journal of Environmental Science and Health, Part B, 1992The acute toxicity of endosulfan and diazinon to the freshwater rotifer Brachionus calyciflorus was determined after 24 hours exposure to these toxicants. The mean 24 hr-LC50 values were 5.15 and 29.22 mg/L for endosulfan and diazinon respectively. Based on these results, four sublethal concentrations were chosen to determined the median lethal time ...
A, Fernández-Casalderrey +2 more
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Journal of Experimental Zoology Part A Ecological and Integrative Physiology, 2020
Titanium dioxide nanoparticles (nTiO2 ) have raised environmental concerns and display potential hazards to aquatic organisms and even humans. However, only a few reports tested the toxicity of nTiO2 to rotifers.
Li-Li Dong +4 more
semanticscholar +1 more source
Titanium dioxide nanoparticles (nTiO2 ) have raised environmental concerns and display potential hazards to aquatic organisms and even humans. However, only a few reports tested the toxicity of nTiO2 to rotifers.
Li-Li Dong +4 more
semanticscholar +1 more source
Uttar Pradesh Journal of Zoology, 2023
In this study the nutritional potential and biochemical composition of four different live feed cultures, including rotifer (Brachionus calyciflorus), cladoceran (Moina macracopa), copepod (Mesocyclops hyalins), and ostracod (Cyprinotus nudus).The ...
S. Jadhav, V. Vaidya
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In this study the nutritional potential and biochemical composition of four different live feed cultures, including rotifer (Brachionus calyciflorus), cladoceran (Moina macracopa), copepod (Mesocyclops hyalins), and ostracod (Cyprinotus nudus).The ...
S. Jadhav, V. Vaidya
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Bulletin of Environmental Contamination and Toxicology, 1992
A large number of studies on the biological effects of oil pollution in the aquatic environment deal with the effects of whole crude or refined oils or their water-soluble fractions. However, low boiling, aromatic hydrocarbons, which are probably the most toxic constituents of oil, have until now not been examined in sufficient detail. Toluene, benzene
M D, Ferrando, E, Andreu-Moliner
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A large number of studies on the biological effects of oil pollution in the aquatic environment deal with the effects of whole crude or refined oils or their water-soluble fractions. However, low boiling, aromatic hydrocarbons, which are probably the most toxic constituents of oil, have until now not been examined in sufficient detail. Toluene, benzene
M D, Ferrando, E, Andreu-Moliner
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High density culture of the freshwater rotifer, Brachionus calyciflorus
Hydrobiologia, 2001The freshwater rotifer, Brachionus calyciflorus is one of the live food organisms used for the mass production of larval fish. In this study possibility of obtaining high density cultures of the freshwater rotifer B. calyciflorus were investigated. The two culture systems used differed in their air and dissolved oxygen supplies using three temperatures
Heum Gi Park +5 more
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Acute lethal toxicity of some pesticides toBrachionus calyciflorus andBrachionus plicatilis
Bulletin of Environmental Contamination and Toxicology, 1991Due to their widespread distribution and toxic nattwe pesticides may have a serious impact on the aquatic environment and exert adverse effects on the associated organisms. Acute bioassay tests have been used to determine the actual impact of various pesticides on aquatic life.
M D, Ferrando, E, Andreu-Moliner
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