LC50


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AcronymDefinition
LC50Lethal Concentration 50 (concentration in water having 50% chance of causing death to aquatic life)
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The results of this study indicate that exposure of rainbow trout to 0.06 portion of the 96-hour LC50 of Cu+Zn ions mixture induced a six-fold decrease in the abundance of total heterotrophic bacteria in digestive tract of rainbow trout.
Impact of copper and zinc mixture on bacterial flora of digestive tract of rainbow trout (Oncorhynchus mykiss)
The concentration of Cu that kills 50% of larvae (LC50) and the concentration of Cu that causes 50% inhibition of normal larval development (EC50) were determined by probit analysis (piecewise linear regression analysis) using measured concentrations of dissolved Cu at the beginning of the experiment (t = 0).
Temporal fluctuation of metals in seawater of the Piedras River estuary and the effects of copper on Venerupis decussata larvae
Regarding overall sensitivity of three fish species, Labeo rohita showed significantly least sensitivity to metal mixtures with a mean LC50 and lethal concentrations of 81.73+-12.73 and 128.80+-19.95 mgL-1, respectively.
ACUTE TOXICITY OF METALS MIXTURES FOR FISH, Catla catla, Labeo rohita AND Cirrhina mrigala
Taciau veikiant vaivorykstinio upetakio jauniklius 0,16 mg/l Cu (0,25 LC50 suaugusiu zuvu) koncentracija, kvepavimo daznis reiksmingai padidejo nuo 70,0 [+ or -] 2,6 iki 83,0 [+ or -] 3,4 krt./min.
Research into the effect of heavy metals and their binary mixture on the cardio-respiratory system of fish larvae/Sunkiuju metalu ir ju binarinio misinio poveikio zuvu kardiorespiracinei sistemai ankstyvojoje ontogenezeje tyrimai
Studies carried out by (21) showed that the LC50 of Poecilia reticulata when exposed to copper-cyanide and zinc-cyanide was 0.3 mg/L and 0.3 mg/L, respectively at 24 h.
Behavioural surveillance of Indian major carp Cirrhinus mrigala (Hamilton) exposed to free cyanide
Keywords: Acute toxicity, copper, LC50, Cryphiops caementarius postlarvae.
Toxicidad aguda del cobre ([Cu.sup.2+]) en postlarvas de camaron de rio Cryphiops caementarius (Natantia, Palaemonidae)
The LC50 value for glyphosate (the active ingredient in Roundup[R]) (Relyea 2005) is relatively high (4,000 [micro]g/L for Daphnia magna), indicating that it poses minimal risk to aquatic invertebrates.
Pesticide usage on the Southern High Plains and acute toxicity of four chemicals to the fairy shrimp Thamnocephalus platyurus (Crustacea: Anostraca)
The data were used to derive median lethal concentration (LC50) using probit method (Finney 1971).
Combined effect of concentrations of algal food (Chlorella vulgaris) and salt (sodium chloride) on the population growth of Brachionus calyciflorus and Brachionus patulus (Rotifera)
(c).reacts vigorously with water to produce a toxic or very toxic gas (LC50 not exceeding 2,500 parts per million).
Dangerously reactive materials in the laboratory
Dead flies were counted after two days, and mortality percentages, plotted against concentrations, allowed a graphic estimate of the lethal concentration killing 50% of the flies (LC50).
Adaptation to fermenting resources in Drosophila melanogaster: ethanol and acetic acid tolerances share a common genetic basis
Table I.- LC50 values for different essential oils against CLM larvae by using two bioassay techniques.
Evaluation of Synthetic Insecticides and Essential Oils for the Management of Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)
The average mortality of each treatment (three replications pretreatment)at each concentration was calculated, and the LC50 value which was defined as the concentration causing 50% mortality, was also determined.
Synthesis and Insecticidal Activity of Rotenone Analogues
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