Abstract：
:Substances derived from anthropogenic activities induce changes in the physical and chemical characteristics of the aquatic environment. Physicochemical and biological studies are necessary to understand how changes in landscape affect the health of the aquatic environment. The main goal of this study was to evaluate how the landscape at different spatial scales affects (1) water quality and (2) the health status of Heptapterus mustelinus, based on several biomarkers. During the dry season, individuals were caught in three sites with different degrees of anthropogenic activity. The quality of the terrestrial environment was assessed using the Riparian Quality and Land Use Indices. The water quality condition was evaluated using a water quality index, and pesticides and pharmaceuticals were measured in water. The following biomarkers were analyzed in the fish: general health status (Condition Factor, Hepatosomatic index and energetic costs), enzymatic activity (GST, CAT, AchE), carbonyl content in proteins and histopathological responses in liver and gills. The most impacted sites by the presence of pesticides showed more alterations in the surrounding landscape; specially, changes in the riparian area. In this area, biomarkers denoted more damage than in sites with protected riparian zone. Conservation status of riparian ecosystems is crucial in the determination of rivers ecological quality. Our results demonstrate the importance of monitoring the environmental quality through an integrated analysis, using native fish to understand the effects of human activities on the biota.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Vreys N,Amé MV,Filippi I,Cazenave J,Valdés ME,Bistoni MAdoi
10.1007/s00244-018-00593-7subject
Has Abstractpub_date
2019-04-01 00:00:00pages
453-468issue
3eissn
0090-4341issn
1432-0703pii
10.1007/s00244-018-00593-7journal_volume
76pub_type
杂志文章abstract：:Seasonal trends and tissue distribution of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in gilthead sea bream (Sparus aurata) samples from the Western Mediterranean were investigated. Hexane extracts of white and red muscle, liver, and gills from wild and cultured specimens were purified by no...
journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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abstract：:Despite the wide use of trace metals in various technologies, such as chemical industries and electronic equipment, insufficient information is available on their behavior in the environment. We investigated changes in chemical forms and vertical distribution during the migration processes of trace metals, whose usage...
journal_title：Archives of environmental contamination and toxicology
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abstract：:Nonylphenol is one of the compounds believed to cause endocrine disruption and affect sperm quality in mammals. However, there is little information on its effects on sperm motility in fish or other forms of wildlife. We examined the effects of nonylphenol on the motility of spermatozoa of medaka (Oryzias latipes) usi...
journal_title：Archives of environmental contamination and toxicology
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abstract：:A replicated field experiment was conducted at two locations to determine the disappearance of methomyl from flue-cured tobacco. Immediately after application, methomyl residues were 88 and 113 ppm at Clayton and 44 and 105 ppm at Reidsville, respectively, for 0.56 and 1.12 kg/ha application rates. After 5 days these ...
journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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doi：10.1007/s002440010220
更新日期：2001-07-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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更新日期：1997-11-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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doi：10.1007/s00244-006-0015-5
更新日期：2007-02-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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doi：10.1007/s002449900547
更新日期：1999-11-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章,评审
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更新日期：2019-04-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002440010256
更新日期：2001-10-01 00:00:00
abstract：:The calculated, acute oral LD50 of acephate and methamidophos to dark-eyed juncos (Junco hyemalis) was 106 mg/kg and 8 mg/kg, respectively. Brain cholinesterase (ChE) activity in birds that died after acephate poisoning was depressed 80% below that of control birds. Birds that died of acute methamidophos poisoning had...
journal_title：Archives of environmental contamination and toxicology
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更新日期：1981-01-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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更新日期：1994-11-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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更新日期：2010-02-01 00:00:00
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更新日期：1990-09-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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更新日期：2017-07-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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更新日期：2019-05-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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journal_title：Archives of environmental contamination and toxicology
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更新日期：2016-01-01 00:00:00
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journal_title：Archives of environmental contamination and toxicology
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doi：10.1007/s00244-005-0071-2
更新日期：2006-05-01 00:00:00
abstract：:The watershed approach, currently used to assess regional streams in the United States, emphasizes least-disturbed reference conditions. Consideration of extensive wadable drainage systems found in Arkansas and Mississippi deltas challenges concepts of disturbance within a landscape of historic agricultural land use. ...
journal_title：Archives of environmental contamination and toxicology
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更新日期：2008-10-01 00:00:00
