Effects of lindane and deltamethrin on zooplankton communities of experimental ponds

Autor:	Jean-Claude Moreteau, François Ramade, Abiba Tidou
Rok vydání:	1992
Předmět:	education.field_of_study biology Ecology fungi Population Branchiopoda Aquatic Science biology.organism_classification Zooplankton Mesocosm chemistry.chemical_compound Animal science Deltamethrin Cladocera chemistry parasitic diseases Lindane education Copepod
Zdroj:	Hydrobiologia. 232:157-168
ISSN:	1573-5117 0018-8158
Popis:	Two insecticides, lindane (321 µg l−1) and deltamethrin (13 µg l−1) were employed in a four mesocosm experiment (two ponds of 10 m3 and two of 16 m3) to asses the impact of water pollution by pesticides. Resistance of the different zooplankton species was variable and depended upon both the group and the insecticide concentration. No effect of lindane was observed on macrozooplancton such as Cladocera and Copepoda. In the deltamethrin-treated pond, all species of zooplankton were found dead a day after the treatment. The microzooplankton (Rotifera and copepod nauplii) were highly susceptible to both insecticides. Although the larvae of Chaoborus were present in the ponds after the treatments, their density decreased (less than 1 individual l−1). The elimination of filter-feeding zooplankton by deltamethrin was followed by an increase of the concentration of chlorophyll a in the post-treatment period. Two months later the original zooplankton population recovered, with the addition of a new and dominant species: Ceriodaphnia reticulata.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6d9c6d8644ad3967c38790cac9a0dfa5 https://doi.org/10.1007/bf00017475 Zobrazit plný text záznamu Full text from SpringerLink