Results 21 to 30 of about 565 (119)

Prey selectivity and functional response by larval red-eyed tetra Moenkhausia sanctaefilomenae (Steindachner, 1907) (Characiformes: Characidae)

open access: yesBrazilian Archives of Biology and Technology, 2009
Studies were carried out to quantify the functional response and prey selectivity of larval (1-5 weeks old) of Moenkhausia sanctaefilomenae, a widely cultured ornamental fish, using four rotifers (Brachionus calyciflorus, B. havanaensis, B. patulus and B.
Jorge Gallardo Alanis   +2 more
doaj   +1 more source

Asymmetric Micro-Evolutionary Responses in a Warming World: Heat-Driven Adaptation Enhances Metal Tolerance in a Planktonic Rotifer, but Not Vice Versa. [PDF]

open access: yesGlob Chang Biol
Rapid genetic adaptation is a potentially important mechanism by which natural populations can increase their tolerance to human‐induced environmental stressors. In our study, we demonstrated that zooplankton populations adapted to heat stress exhibited increased tolerance to copper toxicity.
Han S, Van den Brink PJ, Declerck SAJ.
europepmc   +2 more sources

Differentiation between activity of digestive enzymes of Brachionus calyciflorus and extracellular enzymes of its epizooic bacteria

open access: yesJournal of Limnology, 2009
The rotifer Brachionus calyciflorus was examined by scanning electron microscopy (SEM) for surface-attached, i.e. epizootic, bacteria to ascertain their specific localization and thus find out if we could discern between rotifer and bacterial enzyme ...
Wilko H. AHLRICHS, Martina ŠTROJSOVÁ
doaj   +1 more source

Suitability of Different Live Feed for First Feeding of Freshwater Fish Larvae

open access: yesAquaculture Journal, 2023
First feeding of many fish larvae depends on live feed. A comparative investigation on the effectiveness of different types of live feed is not available to our knowledge.
Franz Lahnsteiner   +2 more
doaj   +1 more source

Effects of selected pharmaceuticals (ibuprofen and amoxicillin) on the demography of Brachionus calyciflorus and Brachionus havanaensis (Rotifera)

open access: yesEgyptian Journal of Aquatic Research, 2016
The levels of emerging chemicals have increased dramatically during the last two decades posing problems for human and environmental health. Pain-killers such as ibuprofen and antibiotics such as amoxicillin are generally consumed together and hence are ...
Brenda Karen González-Pérez   +2 more
doaj   +1 more source

Complete mitochondrial genomes of two marine monogonont rotifer Brachionus manjavacas strains

open access: yesMitochondrial DNA. Part B. Resources, 2021
The complete mitochondrial genomes of Brachionus manjavacas German strain were 10,721 bp (mitochondrial DNA I) and 12,274 bp (mitochondrial DNA II) in size, while the complete mitochondrial genomes of B.
Min-Sub Kim   +7 more
doaj   +1 more source

Quantifying directed behavioural stress response in two planktonic rotifer species [PDF]

open access: yesRoyal Society Open Science
In a spatially heterogeneous world, it is key for animals to sense the quality of their immediate environment and perform a directed avoidance behaviour when the environment is harmful.
Guntram Weithoff
doaj   +1 more source

Complete mitochondrial genome of the freshwater monogonont rotifer Brachionus angularis (Rotifera, Brachionidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
The two complete mitochondrial genomes were sequenced from the freshwater monogonont rotifer Brachionus angularis. The mitochondrial genome sequences were 10,764 bp (mitochondrial DNA I) and 12,238 bp (mitochondrial DNA II) in size, respectively.
Min-Sub Kim   +5 more
doaj   +1 more source

Adapting to an increasingly stressful environment: Experimental evidence for 'micro-evolutionary priming'. [PDF]

open access: yesJ Anim Ecol
Our study shows that exposure to low stress makes zooplankton populations more tolerant to extreme stress. This phenomenon, here called micro‐evolutionary priming, is rarely studied in animals. We provide strong evidence for its existence and explore its implications for the fate of populations in an increasingly stressful world.
Han S, Van den Brink PJ, Declerck SAJ.
europepmc   +2 more sources

Rotifer community structure along a stretch under the influence of dams in the Upper Paraná River floodplain

open access: yesActa Scientiarum: Biological Sciences, 2015
The construction of reservoirs imposes substantial impact on freshwater ecosystems and changes the ecological aspects of the lotic system downstream of dams.
Tatiane Mantovano   +4 more
doaj   +1 more source

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