daphnia


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Related to daphnia: Daphnia pulex
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Synonyms for daphnia

minute freshwater crustacean having a round body enclosed in a transparent shell

References in periodicals archive ?
7) Within the last decade, scientists have started to use Daphnia in biomedical research as a surrogate species for genomic responses to environmental stressors.
A pond of asexual Daphnia may go extinct quite rapidly owing to these deleterious gene-exposing processes, but the small chromosomal regions responsible for asexuality survive by jumping to new sexual populations where they again transform the local individuals to asexuality by repeated backcrossing," explains Lynch.
There are numerous publications where Daphnia is used as a research object; for example, a number of studies have been performed in Europe and North America with Daphnia as a pelagic feeding base in lakes and ponds (Lampert, 1985, 2006; Sterner, 1989; Larsson & Weider, 1995; Colbourne et al.
The two leachates studied contained 78 and 195 mg phenols/L and were toxic to photobacteria, daphnia and rotifers (LC50 1-9%).
Cyclops population outstrips daphnia, and I'm told they smell.
This section is devoted to analyse a real case-data pertaining to Daphnia species [5]
Their effects on Daphnia heart are likely achieved by altering membrane viscosity.
Efeito da presenca de sedimento na toxicidade aguda do sulfato de cobre e do triclorfon para tres especies de Daphnia.
In addition, Black & Dodson (2003) showed that there are no significant differences in the body length of Daphnia (Cladocera) when the measurements of fresh and formalin or ethanol preserved animals are compared.
Food thresholds in Daphnia species in the absence and presence of blue-green filaments.
Dentre os Cladocera, Diaphanosoma birgei foi a mais representativa com 79,57%, seguida de Moina micrura com 8,23% e Daphnia gessneri com 0,44% do total de indivíduos zooplanctônicos, observados no concentrado alimentar.
A recent study by Jonathan Maul at TIEHH-TTU on the interaction between functionalized fullerenes and agriculture chemicals has shown that fullerenes fimctionalized with carboxylic acid reduced the reproductive toxicity of bifenthrin to aquatic organisms such as Daphnia magna.