[Acute toxicity of 5 pollutants on 4 fresh-water invertebrate species].
The animals stay in solutions for 4 days at different concentrations of each agent: regression lines (log concentration-probit) allow us to calculate the lethal concentration values for 50% of the animals tested (LC 50). Animals are affected by concentrations ranging from 0,003 to 9,0 X 10(-6) of insecticides, 2 to 16 X 10(-6) of herbicide, 9 to 50 X 10(-6) of detergents. As a general rule, the four studied species can be classified by decreasing sensibility in the following order: Gammarus, Cloeon, Chaoborus and Lymnea.
D000818:Animals; D003445:Crustacea / Q000187:drug effects; D003902:Detergents / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D005618:Fresh Water; D006540:Herbicides / Q000633:toxicity*; D007313:Insecta / Q000187:drug effects; D007306:Insecticides / Q000633:toxicity*; D007448:Invertebrates / Q000187:drug effects*; D007814:Larva; D007928:Lethal Dose 50; D012908:Snails / Q000187:drug effects; D013045:Species Specificity; D014873:Water Pollutants / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D003902:Detergents; D006540:Herbicides; D007306:Insecticides; D014873:Water Pollutants; D014874:Water Pollutants, Chemical
Toxicité aiguë de 5 agents polluants sur 4 espèces d'invertébrés habitant les eaux douces