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Location Folder Show Tree ROOT _ScienceBase Catalog __Eastern Ecological Science Center Animal Health Diagnostics & Surveillance Ecological Patterns & Processes Fish Passage Design and Analysis Program Quantitative Methods & Decision Science Remote Sensing and Geospatial Analysis Program More... Filters Date Range Past year (2) Past month (2) Past week (0) Past day (0) Custom range... To   Search Contacts Luke Iwanowicz Diann J Prosser Eastern Ecological Science Center U.S. Geological Survey U.S. Geological Survey - ScienceBase More... Tag Types Theme (2) USGS Scientific Topic Keyword (2) Harvest Set (2) Place (2) Tag Schemes None (2) USGS Thesaurus (1) Geographic Names Information System (GNIS) (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV Browse Folder

Effects of estrogens and atrazine on functional immune responses of largemouth bass (Micropterus salmoides) Disease outbreaks, skin lesions, fish kill events, and reproductive abnormalities have been observed in wild populations of bass in the Chesapeake Bay watershed. Occurrence of synthetic and natural hormones from wastewater treatment plants and livestock operations, pesticides from agricultural lands, and phytoestrogens from cover crops have been implicated as potential causes of these adverse effects. Late summer to fall is the period of early gonad recrudescence in adult bass when spermatogenesis and oogenesis begin for the upcoming spawning event in spring. Our objective was to assess whether early gonad recrudescence was a period of sensitivity for inducing immunomodulation. Adult largemouth bass (LMB; Micropterus... Categories: Data; Tags: Aquatic Biology, Environmental Health, Micropterus salmoides, Missouri, USGS Science Data Catalog (SDC), All tags... Water Quality, Wildlife Biology, Wildlife Disease, environmental health, estrogenic endocrine disruption, immunology, immunology, lakes, largemouth bass, rivers, streams, Fewer tags Data describing highly pathogenic H5N1 in Double-crested Cormorants of the Chesapeake Bay These data describe the prevalence of HP H5N1 infection and antibodies in Double-crested Cormorants at a single breeding site in the Chesapeake Bay. Categories: Data; Tags: Chesapeake Bay, USGS Science Data Catalog (SDC), Wildlife Biology, Wildlife Disease, avian influenza, All tags... biota, double-crested cormorant, Fewer tags