Kathy R Echols

Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park

This is a collection of data on the contamination of water, fish, and sediments in Biscayne National Park and in canals that discharge into the national park. The water data are estimations of their concentrations in water based on sampling with passive water samplers (semi-permeable membrane devices and polar organic chemical integrative samplers). Also in this data set are estrogen equivalencies for the chemical mixtures in the polar organic chemical integrative samplers.

Categories: Data; Types: Citation; Tags: Miami-Dade County, USGS Science Data Catalog (SDC), semi-permeable membrane device

Organochlorine chemicals in northern cardinal eggs from suburban Washington, DC USA

Analysis of organochlorine pesticides and polychlorinated biphenyls (PCBs) in northern cardinal eggs from six neighborhoods near Washington, DC

Tags: Arlington, Dunkirk, Environmental Health, Greenbelt, Maryland, All tags... Organochlorine pesticides, Takoma Park, USGS Science Data Catalog (SDC), Virginia, West Friendship, biota, birds, chlordane, industrial pollution, Fewer tags

Sperm quality biomarkers complement reproductive and endocrine parameters in investigating environmental contaminants in common carp (Cyprinus carpio) from the Lake Mead National Recreation Area (1999-2006)

Lake Mead National Recreational Area (LMNRA) serves as critical habitat for several federally listed species and supplies water for municipal, domestic, and agricultural use in the Southwestern U.S. Contaminant sources and concentrations vary among sub-basins within LMNRA. To investigate whether environmental contaminant exposure is associated with alterations in male common carp (Cyprinus carpio) gamete quality and endocrine- and reproductive parameters, data were collected among sub-basins (n = 7) over 7 years (1999 to 2006). Endpoints included the sperm quality parameters of motility, viability, mitochondrial membrane potential, count, morphology, and DNA fragmentation; plasma components were vitellogenin (VTG),...

Categories: Data; Types: Citation; Tags: Aquatic Biology, Boulder Basin, Callville Bay, DNA fragmentation, Echo Bay, All tags... Environmental Health, Gregg Basin, Lake Mead National Recreation Area, Las Vegas Bay, Las Vegas Wash, Overton Arm, USGS Science Data Catalog (SDC), Willow Beach, analytical chemistry, bioindicators, biomarkers, computer assisted sperm motion analysis, flow cytometry, sperm quality, thyroid hormones, Fewer tags