Abstract：
: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 the sub-basins within LMNRA. To investigate whether exposure to environmental contaminants is associated with alterations in male common carp (Cyprinus carpio) gamete quality and endocrine- and reproductive parameters, data were collected among sub-basins over 7 years (1999-2006). Endpoints included 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. Diminished biomarker effects were noted in 2006, and sub-basin differences were indicated by the irregular occurrences of contaminants and by several associations between chemicals (e.g., polychlorinated biphenyls, hexachlorobenzene, galaxolide, and methyl triclosan) and biomarkers (e.g., plasma thyroxine, sperm motility and DNA fragmentation). By 2006, sex steroid hormone and VTG levels decreased with subsequent reduced endocrine disrupting effects. The sperm quality bioassays developed and applied with carp complemented endocrine and reproductive data, and can be adapted for use with other species.
journal_name
Environ Resjournal_title
Environmental researchauthors
Jenkins JA,Rosen MR,Draugelis-Dale RO,Echols KR,Torres L,Wieser CM,Kersten CA,Goodbred SLdoi
10.1016/j.envres.2018.01.041subject
Has Abstractpub_date
2018-05-01 00:00:00pages
149-164eissn
0013-9351issn
1096-0953pii
S0013-9351(17)31279-3journal_volume
163pub_type
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pub_type： 杂志文章
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更新日期：2019-12-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：1993-10-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2016-05-01 00:00:00
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更新日期：2019-07-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/j.envres.2017.08.020
更新日期：2017-11-01 00:00:00
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pub_type： 杂志文章,meta分析,评审
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更新日期：1986-12-01 00:00:00
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更新日期：2020-09-01 00:00:00
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更新日期：2020-04-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
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更新日期：1994-04-01 00:00:00
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更新日期：2016-07-01 00:00:00
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pub_type： 杂志文章
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更新日期：2013-10-01 00:00:00
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pub_type： 杂志文章
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更新日期：2010-05-01 00:00:00
