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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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Chronic Effects of Bromate on Sexual Reproduction of Freshwater Rotifer Brachionus calyciflorus
Bulletin of Environmental Contamination and Toxicology, 2021The effects of potassium bromate (KBrO3), sodium bromate (NaBrO3), and potassium bromide (KBr) on the sexual reproduction of the rotifer Brachionus calyciflorus were studied by 2-d population growth, 4-d sexual reproduction, and 7-d resting egg production tests.
Xiaoping Xu +4 more
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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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Effect of Antioxidant Peptide Isolated from Brachionus calyciflorus
Journal of the Korean Society for Applied Biological Chemistry, 2010The antioxidative activities of hydrolysates isolated from the freshwater rotifer using enzymes Alcalase, α-chymotrypsin, Neutrase, papain, pepsin, and trypsin were identified and evaluated using direct free radical scavenging activity. Among the six hydrolysates, Neutrase hydrolysate had the highest antioxidative activity compared to the other ...
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Relative sensitivity of daphnia magna and brachionus calyciflorus to five pesticides
Journal of Environmental Science and Health, Part B, 1992Comparative toxicity of several pesticides, lindane, endosulfan, pentachlorophenol (PCP),3,4-dichloroaniline (DCA) and copper sulphate has been tested to determine their lethality in two species of freshwater invertebrates, Daphnia magna and Brachionus calyciflorus. D. magna was more sensitive than B.
M D, Ferrando +2 more
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Hydrobiologia, 2008
In the present study, we evaluated the effects of a graded series of different intensities of predation by predatory rotifer Asplanchna brightwellii (0, 1, 2, 5, 10 and 20 ind. per 50 ml) on the competition outcome between two herbivorous rotifers, Brachionus calyciflorus (196 ± 12 μm in length) and Brachionus patulus (145 ± 8 μm in length), at high (3
Xu Wang Yin, Cui Juan Niu
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In the present study, we evaluated the effects of a graded series of different intensities of predation by predatory rotifer Asplanchna brightwellii (0, 1, 2, 5, 10 and 20 ind. per 50 ml) on the competition outcome between two herbivorous rotifers, Brachionus calyciflorus (196 ± 12 μm in length) and Brachionus patulus (145 ± 8 μm in length), at high (3
Xu Wang Yin, Cui Juan Niu
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