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Found 10 records similar to Acute and chronic toxicity of neonicotinoid and butenolide insecticides to the freshwater amphipod, Hyalella azteca

Federal

Neonicotinoid insecticides are environmentally persistent and highly water-soluble, and thus are prone to leaching into surface waters where they may negatively affect non-target aquatic insects. Most of the research to date has focused on imidacloprid, and few data are available regarding the effects of other neonicotinoids or their proposed replacements (butenolide insecticides). The objective of this study was to assess the toxicity of six neonicotinoids (imidacloprid, thiamethoxam, acetamiprid, clothianidin, thiacloprid, and dinotefuran) and one butenolide (flupyradifurone) to Hexagenia spp. (mayfly larvae).

Last Updated: Jul. 29, 2021
Date Published: May 4, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  mayfly (Hexagenia spp.), neocotinoid, sublethal effects, toxicity, Biochemicals
Federal

Widespread agricultural use of neonicotinoid insecticides has resulted in frequent detection of mixtures of these compounds in global surface waters. Recent evidence suggests that neonicotinoid mixtures can elicit synergistic toxicity in aquatic insects under acute exposure conditions, however this has not been validated for longer exposures more commonly encountered in the environment. Therefore, we aimed to characterize the chronic (28-day) toxicity of imidacloprid, clothianidin, and thiamethoxam mixtures under different doses and mixture ratios to determine if the assumption of synergistic toxicity would hold under more environmentally realistic exposure settings. The sensitive aquatic insect Chironomus dilutus was used as a representative test species, and successful emergence was used as a chronic endpoint.

Last Updated: Jul. 23, 2021
Date Published: Mar. 21, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Insecticides, MITOX, Neonicotinoids, insecticide
Federal

Neonicotinoids are the most widely used insecticides in the world and selective toxicity has resulted in the rapid and ubiquitous use of these compounds. Neonicotinoids are a class of neuro-active insecticides chemically similar to nicotine and are widely used in agriculture to protect crops from various insects. They are also used for other purposes, including killing insects in homes, controlling fleas on pets, and protecting trees from invasive insects such as the Emerald Ash borer. To date Imidacloprid is the most widely used insecticide in the world.

Last Updated: Jul. 29, 2021
Date Published: Dec. 9, 2019
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  Sturgeon Creek, Cedar Creek, Hillman Marsh, Lebo Creek, Fish Health, Water Quality Concentrations, Pumpkinseed (Lepomis gibbosus), Neonicotinoid, pesticides
Provincial

The data, which includes seeds treated with neonicotinoids (treated seed) and not treated with neonicotinoids (untreated seed) must be submitted no later than October 31 of each year, for the previous 12-month period ending August 30. The data includes: * total mass, in tonnes, of treated seed sold or transferred, or that was treated by a custom seed treater,  that contained imidacloprid, clothianidin or thiamthoxam * total number of acres that could have been planted with this amount of treated seed * total mass, in tonnes, of untreated corn and soybean seed sold or transferred Further information This dataset is related to the following: 1. Stream Neonicotinoid Monitoring Study 2. Soil Neonicotinoid Monitoring Study 3.

Last Updated: Feb. 1, 2023
Date Published: Jan. 11, 2020
Organization: Government of Ontario
Formats: XLSX CSV HTML PDF
Keywords:  Environment and Natural Resources, Environment and energy
Federal

Freshwater mussels contribute important ecological functions to aquatic systems. The water filtered by mussel assemblages can improve water quality, and the mixing of sediments by burrowing mussels can improve oxygen content and release nutrients. However, nearly 70 percent of North American freshwater mussel species are listed as either endangered, threatened, or in decline. In Ontario, 28 species are in decline or in need of protection.

Last Updated: Jul. 29, 2021
Date Published: Aug. 8, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  freshwater mussels, glochidea, Lampsilis siliquoidea, Villosa iris, species at risk, pesticides, neonicotinoids, contaminants, viability
Provincial

The Ministry of the Environment, Conservation and Parks started the Multi-Media Monitoring Study in 2015, in support of Ontario's Pollinator Health Action Plan, to measure changes in neonicotinoid insecticide concentrations in the environment following restrictions on the use of neonicotinoid-treated corn and soybean seeds. This data includes: * locations of 22 sampled stream locations * environmental attributes of the catchments draining to these locations * a table of counts of collected aquatic invertebrates The other components of the Multi-Media Monitoring Study (stream water and soil neonicotinoid concentrations) are available separately. View this data on an interactive map This dataset is related to the following: 1. Stream Neonicotinoid Monitoring Study 2.

Last Updated: Dec. 14, 2022
Date Published: Jan. 11, 2020
Organization: Government of Ontario
Formats: PDF CSV HTML
Keywords:  Environment and Natural Resources, Environment and energy
Federal

The toxicity of pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in chronic (42 days) sediment tests with the amphipod Hyalella azteca. Two tests were completed for each compound. Survival, growth, reproduction and sex ratio were assessed at the end of each test.

Last Updated: Jan. 24, 2022
Date Published: Feb. 25, 2021
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Aquatic animals, Arthropods, Bioassay, Toxicology, Biology, Chemicals, Fresh water, Sediment, Toxicity
Federal

The toxicity of pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in chronic (42 days) sediment tests with the amphipod Hyalella azteca. Two tests were completed for each compound. Survival, growth, reproduction and sex ratio were assessed at the end of each test.

Last Updated: Jan. 24, 2022
Date Published: Nov. 25, 2021
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  amphipod, Hyalella azteca, sediments, toxicity, pharmaceuticals, finasteride, Melengestrol acetate, The New Substances Assessment and Control Bureau (NSACB), Environment
Provincial

The Ministry of the Environment, Conservation and Parks started the Multi-Media Monitoring Study in 2015, in support of Ontario's Pollinator Health Action Plan, to measure changes in neonicotinoid insecticide concentrations in the environment following restrictions on the use of neonicotinoid-treated corn and soybean seeds. This data characterizes neonicotinoid concentrations in streams in five southern Ontario watersheds. The other components of the Multi-Media Monitoring Study (soil neonicotinoid concentrations and benthic invertebrate data) are available separately. View this data on an interactive map This dataset is related to the following: 1.

Last Updated: Sep. 7, 2022
Date Published: Jan. 11, 2020
Organization: Government of Ontario
Formats: XLSX HTML PDF
Keywords:  Environment and Natural Resources, Environment and energy
Provincial

The Ministry of the Environment, Conservation and Parks started the Multi-Media Monitoring Study in 2015, in support of Ontario's Pollinator Health Action Plan, to measure changes in neonicotinoid insecticide concentrations in the environment following restrictions on the use of neonicotinoid-treated corn and soybean seeds. This data characterizes neonicotinoid concentrations in soil at 38 study sites in five southern Ontario watersheds. The other components of the Multi-Media Monitoring Study (stream water neonicotinoid concentrations and benthic invertebrate data) are available separately. View this data on an interactive map This dataset is related to the following: 1.

Last Updated: Dec. 14, 2022
Date Published: Jan. 11, 2020
Organization: Government of Ontario
Formats: PDF CSV HTML
Keywords:  Environment and Natural Resources, Environment and energy
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