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The threat posed by infectious diseases are a major concern for global public health and the role of migratory birds in pathogen transmission is increasingly under scrutiny. Enteric viral pathogen surveillance in migratory birds is a critical component of outbreak preparedness. The shedding of such pathogens through excrement into bodies of water located at migratory stop-over sites and breeding and wintering grounds creates conditions to potentially infect millions of birds annually. The mallard is the most abundant of all duck species and migratory across much of its range. Here we characterized enteric viral pathogens from the cecum of 16 captive raised mallards (Anas platyrhynchos) from Wisconsin, USA using...
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Observations of test subjects and hatching data - Body weight, organ/tissue weights Biomarker data (oxidative stress indicators, oxidative DNA damage, thyroid hormones, histological findings) in various tissues Chemical residues in tissues
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The files in this data release are RNA seq datafiles from a study that examined the effects of the synthetic anabolic steroid 17β hydroxyestra 4,9,11 trien-3-one, trenbolone (17βT - CAS 10161-33-8), a common contaminant of wastes from confined animal feeding operations (CAFOs). Japanese quail (Coturnix japonica) were exposed in the egg and through feed to multiple doses of 17βT and liver transcriptomes were examined to identify genes and pathways directly affected by this androgenic compound. RNA was extracted from liver of adults and embryos and analyzed (1x50 bp) on an Illumina HiSeq 2000. NCBI Biosample accessions and the raw counts that were input into the differential expression analysis are provided in this...
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There is an increasing emphasis on effects-based monitoring to document responses associated with exposure to complex mixtures of chemicals, climate change, pathogens, parasites and other environmental stressors in fish populations. For decades aquatic monitoring programs have included the collection of tissues preserved for microscopic pathology. Consequently, formalin-fixed, paraffin-embedded (FFPE) tissue can be an important reservoir of nucleic acids as technologies emerge that utilize molecular endpoints. Despite the cross-linking effects of formalin, its impact on nucleic acid quality and concentration, amplification, and sequencing are not well described. While fresh-frozen tissue is optimal for working with...
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The dataset provides length, weight, age, observations of visible external abnormalities, liver and skin histopathology and stable isotopes of white sucker captured within the St. Louis river and associated bays.
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Dataset includes: Bird body weight, Number of seeds dosed per day per bird,amount of pesticide dosed, pesticide residues on seeds, weight of treated seed dosed per day, weight of fecal sample for each sample, residue analyses of fecal samples, the weather conditions during the two weathering periods
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Body weight and weight change during course of study, estimates of food and brodifacoum consumption, observations of test birds during feeding trial and at necropsy, hematocrit, and prothrombin time
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Archived plasma from fish health monitoring sites within the Chesapeake Bay watershed was analyzed for 13 perfluoroalkyl compounds. Smallmouth bass were collected from two sites in the Potomac River drainage (Antietam Creek, Maryland and South Branch Potomac, West Virginia) and two in the Susquehanna River drainage (West Branch Mahantango Creek, Pennsylvania and Pine Creek, Pennsylvania). Site and date of collection, length, weight and age of each adult smallmouth bass were documented. Four compounds were detected in every plasma sample, while two additonal compounds were only occasionally observed at low concentrations.
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An important component of assessing the hazards of anticoagulant rodenticides to non-target wildlife are observations in exposed free-ranging individuals. The objective of this study was to determine if environmentally realistic, sublethal first-generation anticoagulant rodenticide exposures via prey, can result in direct or indirect adverse effects to free-flying raptors. We offered black-tailed prairie dogs (Cynomys ludovicianus) that had fed on Rozol® Prairie Dog Bait (0.005% active ingredient chlorophacinone) to six wild-caught red-tailed hawks (RTHA, Buteo jamaicensis), and uncontaminated black-tailed prairie dogs to two wild-caught RTHAs for 7 days. On day 6, blood was collected from all eight RTHAs to determine...
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Adult and young of the year smallmouth bass from the Chesapeake Bay watershed have faced health issues (mortality events, disease by a variety of pathogens, endocrine disruption in male fish, evidence of oxidative damage to tissues, and signs of exposure to chemical contaminants) at multiple sites within the Susquehanna and Potomac River basins. Functional immune assays were added to long-term comprehensive monitoring assessments to determine if immunosuppression was playing a role in observed disease and mortalities because no one single or consistent cause could be identified. The functional immune assays measured bactericidal activity, respiratory burst activity, and lymphocyte mitogenesis using leukocytes isolated...
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Plasma from adult smallmouth bass was analyzed for 13 per- and polyfluoroalkyl compounds at 11 sites for a spatial comparison. At four sites a temporal comparison was made over a three year period (2017-2019). At two sites tissue comparisons were made using plasma, whole blood, liver, gonad and muscle. Compounds detected at least once are included in the dataset. For all fish collection site, date of collection, sex, age, length and weight are also documented.
map background search result map search result map Morphometric, Age, Visible Abnormalities, Skin and Liver Neoplasms, and Stable Isotopes in White Sucker Collected in the St. Louis River and Estuary, Minnesota/Wisconsin, 2011-2015 Abundance of 50 transcripts from microdissected liver samples of smallmouth bass Hepatic Transcriptome of Japanese quail (Coturnix japonica) Exposed to 17β-Trenbolone Toxicological responses to sublethal anticoagulant rodenticide exposure in free-flying red-tailed hawks Morphometric, Age and Concentrations of Perfluoroalkyl Substances in Smallmouth Bass Plasma from Four Sites in the Chesapeake Bay watershed Biomarker responses in American kestrels exposed in ovo to EHTBB and TBPH Immune Function of Wild Smallmouth Bass Collected from Sites within the Chesapeake Bay Watershed, 2016-2021 Survey of potential viral pathogens in the ceca of pen-raised mallards Per- and Polyfluoroalkyl Substances (PFAS) Detected in Smallmouth Bass Collected in Mid-Atlantic Watersheds Brodifacoum isomer formulation study Pesticide persistence in weathered avian droppings Abundance of 50 transcripts from microdissected liver samples of smallmouth bass Biomarker responses in American kestrels exposed in ovo to EHTBB and TBPH Brodifacoum isomer formulation study Morphometric, Age, Visible Abnormalities, Skin and Liver Neoplasms, and Stable Isotopes in White Sucker Collected in the St. Louis River and Estuary, Minnesota/Wisconsin, 2011-2015 Toxicological responses to sublethal anticoagulant rodenticide exposure in free-flying red-tailed hawks Morphometric, Age and Concentrations of Perfluoroalkyl Substances in Smallmouth Bass Plasma from Four Sites in the Chesapeake Bay watershed Per- and Polyfluoroalkyl Substances (PFAS) Detected in Smallmouth Bass Collected in Mid-Atlantic Watersheds Immune Function of Wild Smallmouth Bass Collected from Sites within the Chesapeake Bay Watershed, 2016-2021 Survey of potential viral pathogens in the ceca of pen-raised mallards Pesticide persistence in weathered avian droppings