Browsing by Author "Placencia, Juan A."

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Inhibitory Effects on Esterase Enzymes Buche and Ache in Rainbow Trout Oncorhyncus mykiss) Produced by the low Release Insecticide Chitosan Diethyl Phosphate

Rudolph, Anny; Cabrera, Gustavo; Cárdenas, Galo; Placencia, Juan A.; Yévenes, M. (2005)

The study on the toxicity of chitosan diethyl phosphate (ChDP), a controlled release insecticide, on the activities of butyrylcholinesterase (BuChE) and acetylcholinesterase (AChE) in rainbow trout exposed to this pesticide ...
Occurrence and Distribution of Deltamethrin and Diflubenzuron in Surface Sediments from the Reloncaví Fjord and the Chiloé InnerSea (~ 39.5ºS –43ºS), Chilean Patagonia

Placencia, Juan A.; Saavedra, Fernán; Fernández, Javier; Aguirre Céspedes, Carolina (2018-03)

Surface sediments from Reloncaví Fjord and the Chiloé inner sea in Chilean Patagonia were extracted and analyzed to estimate deltamethrin and diflubenzuron levels. These antiparasitary pesticides have been used for decades ...
Organochlorine pesticides in surface waters from Reloncaví Fjord and the inner sea of Chiloé (~ 39.5°S - 43°S), Chilean Patagonia

Placencia, Juan A.; Contreras Quintana, Sergio (2018-01)

Surface water samples from the environmental continuum spanning rivers (Petrohue, Cochamo, Puelo), fjord (Reloncaví), and the inner sea of Chiloé in Chilean Patagonia were analyzed to estimate concentration and distribution ...