Results 231 to 240 of about 15,445 (250)
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Mass Culture Experiments With Brachionus Rubens
Hydrobiologia, 1980In order to develop the optimum conditions for a mass culture of Brachionus rubens, eight strains of phytoplankton were tested as food for the rotifers. The optimum food concentration as well as the concentration of algal medium tolerated by R. rubens, and the influence of nitrite, sodium chloride, extreme pH-values and low oxygen concentrations on the
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Chinese Journal of Oceanology and Limnology, 2014
Sexual reproduction adversely affects the population growth of cyclic parthenogenetic animals. The density-dependent sexual reproduction of a superior competitor could mediate the coexistence. However, the cost of sex may make the inferior competitor more vulnerable.
Chen Li, Cuijuan Niu
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Sexual reproduction adversely affects the population growth of cyclic parthenogenetic animals. The density-dependent sexual reproduction of a superior competitor could mediate the coexistence. However, the cost of sex may make the inferior competitor more vulnerable.
Chen Li, Cuijuan Niu
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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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Speciation in the Brachionus plicatilis Species Complex
2017The Brachionus plicatilis species complex is the best-studied example among rotifers where the use of integrative taxonomy, coupling morphology, ecology, physiology, cross-mating experiments, and DNA taxonomy helps disentangling the biological reality of the different species in the complex.
Serra Manuel, Fontaneto Diego
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Intraspecific variability of Brachionus plicatilis
Hydrobiologia, 1987An extensive study of frontal margins of the lorica of Brachionus plicatilis was undertaken in an attempt to define its variability within this species. Specimens from mass cultures and from the natural environment were examined.
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Ultrastructure of the rotifer Brachionus plicatilis
Hydrobiologia, 1997The ultrastructural study of digestive organs andintegument of the rotifer, Brachionusplicatilis, was performed by transmission of electronmicroscopy to elucidate the relationship between theirstructure and function. The integument of the rotiferis composed of a thick external and a thin internallayer, in which many pores are regularly distributed.The ...
Jian-Ping Yu, Shun-Jin Cui
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Culture of the rotifer Brachionus calyciflorus Pallas
Aquaculture, 1992Abstract Optimum conditions for raising the rotifer Brachionus calyciflorus Pallas were identified. A temperature of 30 °C and a food concentration of 10 7 cells/ml of the alga Chlorella vulgaris were identified as the most suitable conditions for culture of this rotifer. Maximum production was 81 080 rotifers/1 day −1 . The size and growth rate
Roberto Rico-Martínez +1 more
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Ecological genetics of Brachionus sympatric sibling species
Hydrobiologia, 1998In this paper we review previous studies on sympatric Brachionus populations in Torreblanca Marsh as a model of evolutionary and ecological relationships between closely related species. The marsh is a wetland on the Mediterranean coast of Spain with high spatial and temporal heterogeneity.
Manuel Serra +2 more
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Hydrobiologia, 1997
The work of Kazutsugu Hirayama over the past 25 years promoted the wide use of the marine rotifer Brachionus plicatilis as an experimental model in zooplankton ecology. His reports about the nature of genetic variation in the B. plicatilis complex stimulated us to investigate how mate recognition maintains species boundaries. For the past several years,
Roberto Rico-Martínez, Terry W. Snell
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The work of Kazutsugu Hirayama over the past 25 years promoted the wide use of the marine rotifer Brachionus plicatilis as an experimental model in zooplankton ecology. His reports about the nature of genetic variation in the B. plicatilis complex stimulated us to investigate how mate recognition maintains species boundaries. For the past several years,
Roberto Rico-Martínez, Terry W. Snell
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Transfection of siRNA into Brachionus plicatilis (Rotifera)
Hydrobiologia, 2007Transfection experiments have played a prominent role in functional genomics, being used to probe phenotypes with reporters and knockouts with techniques like RNAi, gene over-expression studies, and the creation of transgenic animals. Rotifers are not amenable to many classic genetic manipulations, hence have not been a model system in the genomics ...
Tonya L. Shearer, Terry W. Snell
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