Results 221 to 230 of about 15,445 (250)
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Feeding biology of two brachionid rotifers: Brachionus quadridentatus and Brachionus plicatilis
Hydrobiologia, 1995Brachionus quadridentatus and Brachionus plicatilis were examined in laboratory cultures to investigate their (1) food requirements and (2) ability to select particles on the basis of size. Growth experiments showed that the Chlorophyceans Nannochloris sp. and Chlorella vulgaris possess good nutritional value for these rotifers.
Reinhard Heerklo�, Stefan Hlawa
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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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Journal of Experimental Marine Biology and Ecology, 1995
An analysis of mating behavior of three Brachionus plicatilis O.F. Muller and three Brachionus rotundiformis Tschugunoff strains showed that reproductive isolation exists between strains of these sibling species. An atypical B. rotundiformis strain appears to share some characteristics with both B. plicatilis and B. rotundiformis strains.
Roberto Rico-Martínez, Terry W. Snell
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An analysis of mating behavior of three Brachionus plicatilis O.F. Muller and three Brachionus rotundiformis Tschugunoff strains showed that reproductive isolation exists between strains of these sibling species. An atypical B. rotundiformis strain appears to share some characteristics with both B. plicatilis and B. rotundiformis strains.
Roberto Rico-Martínez, Terry W. Snell
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GABA, 5-HT and amino acids in the rotifers Brachionus plicatilis and Brachionus rotundiformis
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2000gamma-Aminobutyric acid (GABA) and 5-hydroxytryptamine (5-HT) have been shown to increase the reproduction of the Brachionus plicatilis (NH3L strain). In the present study, the endogenous presence of GABA and 5-HT in the rotifers B. plicatilis (NH3L and Kamiura strains) and Brachionus rotundiformis (Langkawi strain) were confirmed by dot blot ...
Gallardo, Wenresti G. +4 more
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Metabolic pathways of methylmercury in rotifer Brachionus plicatilis
Science of The Total Environment, 2023Methylmercury (MeHg) readily accumulates in aquatic organisms while transferring and amplifying in the aquatic food chains. This study firstly explores the in vivo accumulation sites and metabolic regulation of MeHg in the rotifer Brachionus plicatilis by aggregation-induced emission fluorogen (AIEgen) and metabolomics.
Hangyu, Lin +7 more
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Hydrobiologia, 1997
The effect of temperature on the chemical composition (carbon, nitrogen and ash content) and the energy content of the rotifers Brachionus plicatilis and Brachionus rotundiformis (formerly B. plicatilis L- and S-type respectively) was examined in experimental populations.
M. Yúfera, G. Parra, E. Pascual
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The effect of temperature on the chemical composition (carbon, nitrogen and ash content) and the energy content of the rotifers Brachionus plicatilis and Brachionus rotundiformis (formerly B. plicatilis L- and S-type respectively) was examined in experimental populations.
M. Yúfera, G. Parra, E. Pascual
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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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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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Marine Biotechnology, 2000
This study was initiated to search for species-specific and strain-specific satellite DNA sequences for which oligonucleotide primers could be designed to differentiate between various commercially important strains of the marine monogonont rotifers Brachionus rotundiformis and Brachionus plicatilis. Two unrelated, highly reiterated satellite sequences
, Boehm, , Gibson, , Lubzens
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This study was initiated to search for species-specific and strain-specific satellite DNA sequences for which oligonucleotide primers could be designed to differentiate between various commercially important strains of the marine monogonont rotifers Brachionus rotundiformis and Brachionus plicatilis. Two unrelated, highly reiterated satellite sequences
, Boehm, , Gibson, , Lubzens
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Feeding in the rotifer Brachionus calyciflorus
Oecologia, 1977Feeding behavior in B. calyciflorus was observed in both constrained and unconfined individuals. There are at least three mechanisms by which the ingestion of suspended particles may be regulated. First, the cirri of the pseudotrochus may be extended, allowing particles to enter the funnel-shaped buccal field, or they may be bent over medially, forming
John J, Gilbert, Peter L, Starkweather
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