Effect of copper sulphate treatment on natural phytoplanktonic communities

Autor: Michel Baudu, Marie Charpin, Christian Amblard, Anne-Hélène Le Jeune, Jean-François Lenain, Véronique Deluchat, Jean-François Briand
Přispěvatelé: Groupement de Recherche Eau, Sol, Environnement (GRESE), Université de Limoges (UNILIM), Groupe de recherche interuniversitaire en limnologie et en environnement aquatique - GRIL (Montréal, Canada), Université de Montréal (UdeM), Laboratoire Microorganismes : Génome et Environnement (LMGE), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université d'Auvergne - Clermont-Ferrand I (UdA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Matériaux Polymères Interfaces Environnement Marin - EA 4323 (MAPIEM), Université de Toulon (UTLN), Matériaux à Finalités Spécifiques (MFS)
Rok vydání: 2006
Předmět:
0106 biological sciences
Time Factors
Health
Toxicology and Mutagenesis
Chlorophyceae
010501 environmental sciences
01 natural sciences
Mesocosm
chemistry.chemical_compound
MESH: Biomass
MESH: Animals
Biomass
[SDV.EE]Life Sciences [q-bio]/Ecology
environment
[SDE.IE]Environmental Sciences/Environmental Engineering
Eukaryota
Biodiversity
MESH: Cyanobacteria
Plankton
6. Clean water
MESH: Dinoflagellida
Environmental chemistry
Water complexation capacity
Dinoflagellida
Seasons
Composition
Copper Sulfate
chemistry.chemical_element
[CHIM.INOR]Chemical Sciences/Inorganic chemistry
Aquatic Science
Biology
Cyanobacteria
MESH: Biodiversity
Phytoplankton
Animals
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Ecotoxicology
Dominance (ecology)
Sulfate
MESH: Algae
0105 earth and related environmental sciences
MESH: Copper Sulfate
Size-class structure
010604 marine biology & hydrobiology
MESH: Time Factors
fungi
biology.organism_classification
Copper
chemistry
13. Climate action
MESH: Seasons
MESH: Phytoplankton
Zdroj: Aquatic Toxicology
Aquatic Toxicology, Elsevier, 2006, 80, pp.267-280. ⟨10.1016/j.aquatox.2006.09.004⟩
Aquatic Toxicology, Elsevier, 2006, 80 (3), pp.267-80. ⟨10.1016/j.aquatox.2006.09.004⟩
Aquatic Toxicology, 2006, 80 (3), pp.267-80. ⟨10.1016/j.aquatox.2006.09.004⟩
ISSN: 0166-445X
DOI: 10.1016/j.aquatox.2006.09.004
Popis: International audience; Copper sulphate treatment is widely used as a global and empirical method to remove or control phytoplankton blooms without precise description of the impact on phytoplanktonic populations. The effects of two copper sulphate treatments on natural phytoplanktonic communities sampled in the spring and summer seasons, were assessed by indoor mesocosm experiments. The initial copper-complexing capacity of each water sample was evaluated before each treatment. The copper concentrations applied were 80 microg l(-1) and 160 microg l(-1) of copper, below and above the water complexation capacity, respectively. The phytoplanktonic biomass recovered within a few days after treatment. The highest copper concentration, which generated a highly toxic environment, caused a global decrease in phytoplankton diversity, and led to the development and dominance of nanophytoplanktonic Chlorophyceae. In mesocosms treated with 80 microg l(-1) of copper, the effect on phytoplanktonic community size-class structure and composition was dependent on seasonal variation. This could be related to differences in community composition, and thus to species sensitivity to copper and to differences in copper bioavailability between spring and summer. Both treatments significantly affected cyanobacterial biomass and caused changes in the size-class structure and composition of phytoplanktonic communities which may imply modifications of the ecosystem structure and function.
Databáze: OpenAIRE
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