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140 results for “Perch”
Fig 6.B in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 6.B: Photomicrograph of Intestine tissue of A. testudineus exposed to DAP- 0.092 g/L for 20 days showing desquamation (orange arrow) and mononuclear cell infiltration (MHI) (arrow). H.&E. 120X
Fig 6.A in Study of haematology profile & histopathological changes in di-ammonium phosphate induced climbing perch, Anabas testudineus (Bloch.)
Fig 6.A: Photomicrograph of Intestine tissue of A. testudineus in control group showing normal appearance of circular muscles, longitudinal muscles, serosa and villi. H.&E., 120X.
Fig. 3 in T H E I P B S T E C H N I Q U E A P P L I C At I O N F O R D N A Fingerprinting Of Perch
Fig. 3. PCR products of DNA samples extracted from blood (B) and muscle (T) tissues and amplified by the primer 2080.
Fig. 2 in T H E I P B S T E C H N I Q U E A P P L I C At I O N F O R D N A Fingerprinting Of Perch
Fig. 2. PCR products of four samples from lakes Babites (B) and Kāla (K) and negative control (-) grouped by two different retrotransposon-based primers.
Fig.1 in T H E I P B S T E C H N I Q U E A P P L I C At I O N F O R D N A Fingerprinting Of Perch
Fig.1. Quality testing of DNA using 1.7% agarose gel electrophoresis for 2 hours at 80 V. The high concentrations of genomic DNA was found in samples: 1, 2, 3, 4, 6, 7, 8; 5 and 9 - DNA in the sample is not sufficient for further use; 10 – DNA ladder.
Figure 1 in Dietary comparison of pike-perch, Sander lucioperca (Linnaeus, 1758) and catfish, Silurus glanis Linnaeus, 1758 in Sidi Salem dam reservoir (Tunisia)
Figure 1. – Locations of the sampling stations in Sidi Salem reservoir. S1: Downstream, S2: Oued Zargha, S3: Central station, S4: Upstream.
Fig. 5 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 5. Representative electroretinograms from eyes of an uninfected yellow perch (Perca flavescens) and a perch infected with Diplostomum baeri. Arrows indicate the a-wave and the b-wave. The ERG waves were analyzed for amplitude and latency (time to peak). Note reduction in ERG b-wave amplitude and increase in b-wave latency recorded from the infected eye. Stimulus intensity units = μJ/cm2, time base = 0.27 s/div, amplitude = 15.5 mV/div.
Fig. 3 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 3. Paraffin sections of normal yellow perch (Perca flavescens) retinas stained with H&E. A. Structure of the retina, photoreceptor layer, pigment epithelium, choroid and the rete mirabile which supplies high levels of O2 to the retina. B. Normal structure of the optic nerve, optic disc and cribiform plate. Bar = 100 μm. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 4 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 4. Paraffin sections of yellow perch (Perca flavescens) retinas and choroid infected with Diplostomum baeri, stained with H&E. A. Metacercariae in the choroid layer with thinning of the pigment epithelium. Retina in the unifected region on the far left of the image is in proximity to the rete mirabile. B. Pocket of metacercariae with melanin debris due to extensive damage to the choroid and pigment epithelium. C. Large pocket of metacercariae with melanin debris and loss of the pigment epithelium and photoreceptor layer (arrow). D. Uninfected region of the same eye shown in image C with normal retina, pigment epithelium and optic nerve. This was the only metacercaria seen in the vitreous humor of a perch on a histological section. E. Presence of the metacercaria increases the diffusion distance for O2 from the rete mirabile to the retina. Note damage to the pigment epithelium in locations of contact with the metacercaria. F. WrightGiemsa stain of the same region shown in image E. No inflammatory cells were detected. Bar = 100 μm. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 1 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 1. ERG recording chamber. The eyecup sits on filter paper saturated with Ringer solution making contact with the reference electrode. The recording electrode is in the vitreous humor of the eyecup. The LED was placed 4 cm from the eyecup.
Fig. 6 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 6. Effect of Diplostomum baeri infection on the electroretinogram of yellow perch (Perca flavescens) as compared to recordings from normal fish. Infection had no effect on the a-wave but significantly reduced b-wave amplitude. Infection caused a strong trend toward an increase in latency (time to peak) of the a-wave and significantly increased the latency of the b-wave. (*p ≤ 0.05; # 0.05 <p ≤ 0.06; t-test, n = 10).
Fig. 7 in Impairment of retinal function in yellow perch (Perca flavescens) by Diplostomum baeri metacercariae
Fig. 7. Flicker fusion frequency of the electroretinogram is reduced by Diplostomum baeri infection. A. Responses to stimulation at 10 Hz, 20 Hz and 40 Hz in an uninfected yellow perch (Perca flavescens). Flicker fusion is reached at 40 Hz. B. Responses to stimulation at 5 Hz and 10 Hz in an infected perch. Flicker fusion is reached at 10 Hz. Time base = 0.27 s/div, amplitude = 15.5 mV/div.
Fig. 2 in Subtle transcriptomic response of Eurasian perch (Perca fluviatilis) associated with Triaenophorus nodulosus plerocercoid infection
Fig. 2. MA and volcano plots comparing infected and uninfected spleen samples (a & b) and liver samples (c & d). In the MA plots (a & c), the log counts and the log fold change are represented on the x- and y-axis, respectively. For each volcano plot (b & d), log fold change is represented on the x-axis and the –log10 p-value on the y-axis, respectively. Positive fold change corresponds to upregulated genes in infected individuals.
Fig. 1. Differentially expressed genes between infected and uninfected P in Subtle transcriptomic response of Eurasian perch (Perca fluviatilis) associated with Triaenophorus nodulosus plerocercoid infection
Fig. 1. Differentially expressed genes between infected and uninfected P. fluviatilis in a) spleen and b) liver tissues. Filled-in and empty boxes on the top of each plot represent infected and uninfected individuals, respectively. N/A indicates unknown protein.
Data for: PerchPicker classifier model v7: A catalog of American silver perch (Bairdiella chrysoura) calls for machine learning
<p>This data repository contains labeled passive underwater acoustic data used to train and test the machine-learning model of Bohnenstiehl (in prep - 2023), <em>Automated cataloging of American silver perch (Bairdiella chrysoura) calls using machine learning</em>. The software accompanying this paper is known as PerchPicker (<a href="https://github.com/drbohnen/PerchPicker" rel="noopener">GitHub - drbohnen/PerchPicker)</a>, and the classifier model presented in the paper is v7. It consists of more than 6000 labeled perch and 6000 labeled other signals. Labeled scalogram images are provided, along with pressure-corrected waveforms (micro-Pascals) sampled at 24 kHz. Each waveform sample is 90 ms long. The center 30 ms of these waveform segments represent the portion of the signal used in training and testing the classifier model. Waveform data are provided in multiple formats: 1) MATLAB (.mat) files containing the 'perch' and 'other' waveforms stored in column format, and 2) individual .wav files, each containing a labeled waveform example. Codes are provided to demonstrate how these .wav files can be read into MATLAB and PYTHON. These labeled data can be used to re-train the PerchPicker model or develop alternative classifiers. </p>
Data for: PerchPicker classifier model v7: A catalog of American silver perch (Bairdiella chrysoura) calls for machine learning
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Temporal effects of preservation on the shape and size of yellow perch: Implications for morphological analyses
Open the record for dataset details and reuse information.
Eight Mile Lake Research Watershed, Thaw Gradient: Geochemical data from perched waters collected from boreholes on Gradient site during August-September 2019
In this larger study, we are asking the question: Is old carbon that comprises the bulk of the soil organic matter pool released in response to thawing of permafrost? We are answering this question by using a combination of field and laboratory experiments to measure radiocarbon isotope ratios in soil organic matter, soil respiration, and dissolved organic carbon, in tundra ecosystems. The objective of these proposed measurements is to develop a mechanistic understanding of the SOM sources contributing to C losses following permafrost thawing. We are making these measurements at an established tundra field site near Healy, Alaska in the foothills of the Alaska Range. Field measurements center on a natural experiment where permafrost has been observed to warm and thaw over the past several decades. This area represents a gradient of sites each with a different degree of change due to permafrost thawing. As such, this area is unique for addressing questions at the time and spatial scales relevant for change in arctic ecosystems. Geochemical analysis of water perched on the permafrost table complements the overarching aim of this study by targeting the organic component transported laterally from the soils. The association between DOC and mineral elements in the waters perched on the permafrost table was determined. These mineral element-organic carbon associations must be accounted for when considering the stability of organic carbon transported laterally from the catchment.
Genome annotation of Macquarie perch
<p>Intermediate and final files generated from the repeat masking and protein coding gene prediction of the Macquarie perch genome (NCBI Bioproject: <a href="https://www.ncbi.nlm.nih.gov/bioproject/PRJNA516983">PRJNA516983</a>)</p> <p>Repeat_Annotation.tar.gz: RepeatMasker and RepeatModeler output - contains de novo repeat library , repeat-masked (soft-masked) genome and repeat annotation in gff3 format.</p> <p>BUSCO_Genome.tar.gz: BUSCO completeness (actinopterygii_odb9) calculation based on whole-genome sequence (-m genome). </p> <p>BUSCO_Protein.tar.gz: BUSCO completeness (actinopterygii_odb9) calculation based on predicted proteins (-m prot)</p> <p>MP.gff3: BRAKER2 annotation in gff3 format</p> <p>MP.gtf: BRAKER2 annotation in gtf format</p> <p>MP.codingseq.fna: BRAKER2 coding sequence output (DNA sequences)</p> <p>MP.faa: BRAKER2 translated coding sequence output (protein sequences)</p> <p>MP_nointernalstop.faa: Filtered BRAKER2 translated coding sequence (no sequences with internal stop codon)</p> <p> </p>
Metabolic rate data and code for: Intra-specific differences in metabolic rates shape carbon stable isotope trophic discrimination factors of muscle tissue in the common teleost Eurasian perch (Perca fluviatilis)
<p>Metabolic rate data and code for: Intra-specific differences in metabolic rates shape carbon stable isotope trophic discrimination factors of muscle tissue in the common teleost Eurasian perch (Perca fluviatilis)</p> <p> </p> <p>The raw data and R-code used to calculate SMR used in the analysis. </p>
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