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From Greenland to green lakes: Cultural eutrophication and the loss of benthic pathways in lakes
Benthic community responses to lake eutrophication are poorly understood relative to pelagic responses. We compared phytoplankton and periphyton productivity along a eutrophication gradient inExpand
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The Impact of Nutrient State and Lake Depth on Top-down Control in the Pelagic Zone of Lakes: A Study of 466 Lakes from the Temperate Zone to the Arctic
Using empirical data from 466 temperate to arctic lakes covering a total phosphorus (TP) gradient of 2–1036 gL –1 , we describe how the relative contributions of resource supply, and predator controlExpand
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Ecological implications of cyanobacterial toxins in aquatic food webs
Abstract Cyanobacterial toxins are now reported worldwide from numerous aquatic sites covering both productive and less productive systems. Toxin concentrations may range from < 1 to 8600 μg g dryExpand
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Shallow Freshwater Ecosystems of the Circumpolar Arctic
Abstract: This review provides a synthesis of limnological data and conclusions from studies on ponds and small lakes at our research sites in Subarctic and Arctic Canada, Alaska, northernExpand
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Effects of Cell-Bound Microcystins on Survival and Feeding of Daphnia spp
ABSTRACT The influence of cell-bound microcystins on the survival time and feeding rates of six Daphnia clones belonging to five common species was studied. To do this, the effects of theExpand
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A spontaneous mutant of microcystin biosynthesis: genetic characterization and effect on Daphnia.
Microcystis aeruginosa strain MRC is unique in its' possession of the mcyA-J gene cluster, which encodes microcystin synthetase, but its' inability to produce microcystins. M. aeruginosa strain MRDExpand
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Accumulation of microcystin in Daphnia magna feeding on toxic Microcystis
The influence of toxic microcystis on the life processes of Daphnia magna was studied in a series of in vitro and in situ life table experiments. Using survival, body growth and fecundity as responseExpand
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Effects of the pyrethroid insecticide cypermethrin on a freshwater community studied under field conditions. II. Direct and indirect effects on the species composition.
The effects of cypermethrin, a commonly used pyrethroid insecticide, were studied in small in situ enclosures situated in an eutrophic lake over an 11-day period. The experimental design used aExpand
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