Interactions between algae (Selenastrum capricornutum) and pesticides: implications for managing constructed wetlands for pesticide removal.
This laboratory study examined the interactions between an algal species found in wetlands (Selenastrum capricornutum) and two agricultural pesticides (atrazine and lindane). Pesticide additions had a positive effect on the chlorophyll a concentrations of the treatments. The presence of algae decreased the aqueous persistence of both pesticides. It is speculated that the algae either provided sites for pesticide sorption or facilitated pesticide degradation.
Friesen-Pankratz
Bruce
B
Department of Botany, University of Manitoba, Winnipeg, Manitoba, Canada. brucewetlands@hotmail.com
Doebel
Cecilia
C
Farenhorst
Annemieke
A
Goldsborough
L Gordon
LG
D000327:Adsorption; D001280:Atrazine / Q000032:analysis / Q000378:metabolism*; D001673:Biodegradation, Environmental; D001681:Biological Assay; D002734:Chlorophyll / Q000032:analysis / Q000378:metabolism; D000077194:Chlorophyll A; D000460:Chlorophyta / Q000737:chemistry / Q000378:metabolism*; D006540:Herbicides / Q000032:analysis / Q000378:metabolism*; D001556:Hexachlorocyclohexane / Q000032:analysis / Q000378:metabolism*; D010573:Pesticide Residues / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
D006540:Herbicides; D010573:Pesticide Residues; D014874:Water Pollutants, Chemical; D002734:Chlorophyll; D001556:Hexachlorocyclohexane; D001280:Atrazine; D000077194:Chlorophyll A