Metformin: Environmental fate and effects on the fathead minnow (Pimephales promelas)
This study aimed to address the toxicological effects the type-2 diabetes drug, metformin has on wild fathead minnows (Pimephales promelas). Fathead minnow embryos and adults were exposed to metformin via in-lake mesocosm and their survival, development and growth was assessed. Exposures were conducted at Lake 114 located at the International Institute for Sustainable Development-Experimental Lakes Area (IILSD-ELA) in northern Ontario, Canada. Adults were exposed for 56 days to three concentrations of metformin (0, 4, and 40 micrograms per liter (ug/L)) each with four replicates. Fish behavior and mortality was observed daily during the exposure period. After 56 days, fish were captured, dissected and assessed for various health endpoints. Additionally, blood, brain and tissue samples were collected for metabolic endpoints. Additionally, wild fathead minnow eggs spawned in the lake were collected in glass mason jars and transported back to the on site laboratory. One fertilized egg was placed in each well for a total of 20 eggs per plate (thus 20 eggs per replicate for the 3 replicates for a total of 60 eggs per mesocosm and a total of 240 eggs per treatment). Hatching time, measurements, survival and deformities were observed.
Basic view
Metadata Record Information
- File Identifier
- a1e00e1f-b0de-4d31-893d-79f1004b904c XML
- Date Stamp
- 2023-11-29T20:26:41
- Metadata language
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eng; CAN
- Character set
- UTF8
- Hierarchy Level
- Dataset
Data identification
- Date (Creation)
- 2022-05-22
- Date (Publication)
- 2023-08-11
- Status
- On going
- Metadata language
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eng; CAN
- Character set
- utf8
- Topic category
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- Environment
- Maintenance and Update Frequency
- As needed
Keywords
- Theme
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metformin
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fathead minnow (Pimephales promelas)
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ecotoxicology
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pharmaceuticals
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freshwater
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Chemicals Management Plan (CMP) of Health Canada
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New Substances Assessment and Control Bureau (NSACB)
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life stages
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Government of Canada Core Subject Thesaurus
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Environment
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Water
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Business Functions
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Assess Toxicity of Substance
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Assess Toxicity, Manage and Monitor for Environmental Presence of Hazardous Substances and Waste
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Branch
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Science and Technology Branch
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Directorate
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Water Science and Technology
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Environment Canada - Program
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1.2.1. Water Quality and Aquatic Ecosystems Health
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GC Security Level
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Unclassified
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Canada/US States and Provinces
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Ontario
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- Use Limitation
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Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )
- Access Constraints
- License
- Use Constraints
- License
- Begin Date
- 2019-05-22
- End Date
- 2019-07-23
Extent
))
Ref. system Reference Systems
- Reference system identifier
- https://epsg.io / EPSG:4326 /
Distribution
Distribution Formats
- Distribution format
-
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CSV
(
Unknown
)
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CSV
(
Unknown
)
Overviews
))
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