Search Results for: Crustaceans
Glyphosate toxicity in animals
Abstract: Pesticides and herbicides gained popularity due to a strong need to curb the starvation of billions of humans. Glyphosate is the most commonly used herbicide and was considered to be non-toxic. But its use in excess in agricultural lands has polluted soils and waters. Nowadays, glyphosate residues are found in soil, water and food. …
Aquatic toxicity of glyphosate-based formulations: comparison between different organisms and the effects of environmental factors
Abstract: Glyphosate-based herbicides (e.g. Roundup) are extensively used in the aquatic environment, but there is a paucity of data on the toxicity of the formulated products and the influences by environmental factors. In this study, the acute toxicity of technical-grade glyphosate acid, isopropylamine (IPA) salt of glyphosate, Roundup and its surfactant polyoxyethylene amine (POEA) to …
Toxicity of malathion and Roundup to the San Diego fairy shrimp
Abstract: The purpose of this study was to measure the toxicity of malathion and glyphosate (the active ingredient in Roundup®, to San Diego fairy shrimp (Branchinecta sandiegonensis). The endemic San Diego fairy shrimp has been listed as endangered due to habitat loss and degradation of southern California vernal pools. The risk to fairy shrimp from …
Effects of herbicide glyphosate and glyphosate-based formulations on aquatic ecosystems
Abstract: Public awareness of worldwide increase herbicides use and their adverse effects on ecosystems has been growing over the past decades. Herbicides may reach water bodies via agricultural runoff and leaching processes, as well as by direct applications to control noxious aquatic weeds. Once in the aquatic ecosystems, herbicides may reduce environmental quality and influence …
Mixture of commercial herbicides based on 2,4-D and glyphosate mixture can suppress the emergence of zooplankton from sediments
Abstract: It is generally assumed that zooplankton can recolonize lakes that have been exposed to pesticides, via their dormant egg banks. Hitherto, few studies have evaluated the relative importance of dormant egg bank recruitment in the re-establishment of zooplankton communities in the presence of pesticide. This study investigated the effects of commercial products Bratt® (a.i. …
Effects of glyphosate formulations on the population dynamics of two freshwater cladoceran species
Abstract: The general objective of this work is to experimentally assess the effects of acute glyphosate pollution on two freshwater cladoceran species (Daphnia magna and Ceriodaphnia dubia) and to use this information to predict the population dynamics and the potential for recovery of exposed organisms. Five to six concentrations of four formulations of glyphosate (4-Gly) …
