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9 results for “Procambarus virginalis”
Effect of psychoactive substances on cardiac and locomotory activity-Procambarus virginalis-DATA
<p>This Effect of psychoactive substances on cardiac and locomotory activity<em>-Procambarus virginalis</em></p> <p>The associated dataset investigates the impact of environmentally relevant levels of psychoactive compounds on the early developmental stages of marbled crayfish (Procambarus virginalis). The compounds analyzed include sertraline, methamphetamine, and a mixture of citalopram, oxazepam, sertraline, tramadol, venlafaxine, and methamphetamine, each at a concentration of 1 μg L-1. The dataset assesses cardiac and locomotory activity on day four and day eight of exposure, respectively.</p> <p>it is a condition of the CENAKVA RI financing provider to record accesses to open data. Data can be requested at the following email: <strong>dubova@frov.jcu.cz</strong></p> <p>or visit the CENAKVA RI website:<br>https://www.frov.jcu.cz/en/faculty/faculty-parts/south-bohemian-research-centre-for-aquaculture-and-biodiversity-of-hydrocenoses-cenakva/large-research-infrastructure-cenakva</p>
Figure 1 in The first records of Marmorkrebs [Procambarus fallax (Hagen, 1870) f. virginalis] (Crustacea, Decapoda, Cambaridae) in Ukraine
Figure 1. Procambarus fallax (Hagen, 1870) f. virginalis and its localities in Ukraine: 1 – old flooded quarry in Dnepropetrovsk City (48°30'19.15 N; 35°06'08.56" E); 2 – cascade of ornamental ponds (46°26'53.85 N; 30°45'12.54" E) in Odessa City.
Temperature affects predation of schistosome-competent snails by a novel invader, the marbled crayfish Procambarus virginalis
<p><span>The human burden of environmentally transmitted infectious diseases can depend strongly on ecological factors, including the presence or absence of natural enemies. The marbled crayfish (<em>Procambarus</em> <em>virginalis</em>) is a novel invasive species that can tolerate a wide range of ecological conditions and colonize diverse habitats. Marbled crayfish first appeared in Madagascar in 2005 and quickly spread across the country, overlapping with the distribution of freshwater snails that serve as the intermediate host of schistosomiasis–a parasitic disease of poverty with human prevalence ranging up to 94% in Madagascar. It has been hypothesized that the marbled crayfish may serve as a predator of schistosome-competent snails in areas where native predators cannot and yet no systematic study to date has been conducted to estimate its predation rate on snails. Here, we experimentally assessed marbled crayfish consumption of uninfected and infected schistosome-competent snails (<em>Biomphalaria</em> <em>glabrata</em> and <em>Bulinus</em> <em>truncatus</em>) across a range of temperatures, reflective of the habitat range of the marbled crayfish in Madagascar. We found that the relationship between crayfish consumption and temperature is unimodal with a peak at ~27.5°C. Per-capita consumption increased with body size and was not affected either by snail species or their infectious status. We detected a possible satiation effect, i.e., a small but significant reduction in per-capita consumption rate over the 72-hour duration of the predation experiment. Our results suggest that ecological parameters, such as temperature and crayfish weight, influence rates of consumption and, in turn, the potential impact of the marbled crayfish invasion on snail host populations. </span></p>
Temperature affects predation of schistosome-competent snails by a novel invader, the marbled crayfish Procambarus virginalis
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Fig. 3 in Effect Of Zinc And Cadmium Ions On Histostructure Of Antennal Glands Of Marbled Crayfish Procambarus Fallax (Hagen, 1870) F. Virginalis (Decapoda)
Fig. 3. Antennal gland of marbled crayfish under influence of zink (40х).
Fig. 2 in Effect Of Zinc And Cadmium Ions On Histostructure Of Antennal Glands Of Marbled Crayfish Procambarus Fallax (Hagen, 1870) F. Virginalis (Decapoda)
Fig. 2. Histology of antennal gland of marbled crayfish control (40x).
Growth, mortality and infection success data from Procambarus virginalis infection trials
<p><span>The dataset STRIVE consists of two files which contain: </span><span>(1) measurements of wet weight (g) and total length (mm) of juvenile marbled crayfish (<em>Procambarus virginalis</em>) used in infection trials performed at the Department of Biology, Faculty of Science, University of Zagreb; and (2) records of juvenile marbled crayfish mortality and detection of crayfish plague pathogen (<em>Aphanomyces astaci</em>) in individuals used in infection trials under (1). Two sets of experiments were performed: Experiment 1 where juvenile marbled crayfish were continuously exposed to two concentrations of <em>A. astaci</em> (7500 and 15000 zoospore/mL) and Experiment 2 where juveniles were exposed to a higher pathogen load (15000 zoospores/mL) but under differing feeding regime (once a week vs. five times a week). In both experiments, all infected groups had respective non-infected control groups. Infections were repeated every two weeks, and individuals were measured and weighed before consecutive infections. Wet weight was measured using a digital scale, while the total length was measured from photographs using the image processing program, ImageJ. All crayfish were tested at the end of experiments for the presence of <em>A. astaci</em> in the crayfish cuticle using PCR-based assay with specific primers which amplify the ITS (Internal Transcribed Spacer) region of the <em>A. astaci</em> 5.8 rRNA gene. </span></p>
Growth, mortality and infection success data from Procambarus virginalis infection trials
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FIGURE 1 in Annotated bibliography of the parthenogenetic marbled crayfish Procambarus virginalis, a new research model, potent invader and popular pet
FIGURE 1. Yearly number of publications on marbled crayfish in the period 1998-2018 (without conference abstracts). The year 2018 includes published publications (shaded) and publications in press (unshaded) until March 31.
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