https://data.amerigeoss.org/dataset/6f61492f-c83d-4286-aeee-5e41a9389667
type: Dataset
description: 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), 17ß-estradiol, 11-keto-testosterone, triiodothyronine, and thyroxine. Fish condition factor, gonadosomatic index, and gonadal histology parameters were also measured.
issued: 2025-11-22T14:06:22.584710
modified: 20200830
title: 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)
contact point: Organization
  fn: Jill Jenkins
keyword: amerigeo
keyword: amerigeoss
keyword: analytical-chemistry
keyword: bioindicators
keyword: biomarkers
keyword: boulder-basin
keyword: callville-bay
keyword: ckan
keyword: computer-assisted-sperm-motion-analysis
keyword: dna-fragmentation
keyword: echo-bay
keyword: flow-cytometry
keyword: geo
keyword: geoss
keyword: gregg-basin
keyword: lake-mead-national-recreation-area
keyword: las-vegas-bay
keyword: las-vegas-wash
keyword: national
keyword: north-america
keyword: overton-arm
keyword: sperm-quality
keyword: thyroid-hormones
keyword: united-states
keyword: usgs-59821015e4b0e2f5d463ba97
keyword: willow-beach
theme: {geospatial}

Digital Data
type: Distribution
description: Landing page for access to the data
format: XML
issued: 2022-06-10T00:22:12.199137
modified: 2025-11-22T14:06:22.569880
access URL: https://doi.org/10.5066/F7NS0SS8
media type: application/http

Original Metadata
type: Distribution
description: The metadata original format
format: XML
issued: 2022-06-10T00:22:12.199126
modified: 2025-11-22T14:06:22.569466
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.59821015e4b0e2f5d463ba97.xml
media type: text/xml

US Migrating
type: Agent