Contrasting impacts of invasive engineers on freshwater ecosystems: an experiment and meta-analysis
Both carp and crayfish have profound effects on community composition and ecosystem processes through combined consequences of bioturbation, excretion, consumption and non-consumptive destruction, indicating that they have differential ecosystem impacts.
Effects of land use on aquatic macrophyte diversity and water quality of ponds
Summary 1. Aquatic macrophyte diversity and water quality of 55 ponds in western Japan were related to land use and morphometric variables to identify the environmental factors that sustain…
Nutrient dynamics and the eutrophication of shallow lakes Kasumigaura (Japan), Donghu (PR China), and Okeechobee (USA).
Dynamics of dissolved methane and methane oxidation in dimictic Lake Nojiri during winter
Changes in the vertical distribution of dissolved CH4 were monitored during the autumnal lake overturn period in mesotrophic Lake Nojiri, Japan (4.4 km2 in area and 9.4 X 107 m3 in vol). A survey in…
Effects of common carp on nutrient dynamics and littoral community composition: roles of excretion and bioturbation
Carp can have dramatic direct and indirect impacts on nutrient dynamics and littoral community structure through excretion and bioturbation, indicating that ecosystem engineering by carp may trigger a shift from a clear water state dominated by submerged macrophytes to a turbid water statedominated by phytoplankton.
Uptake of 13C and 15N (ammonium, nitrate and urea) by Microcystis in Lake Kasumigaura
Toxin production of cyanobacteria is increased by exposure to zooplankton
The hypothesis that several strains of Microcystis aeruginosa increased toxin production in response to direct and indirect exposure to herbivorous zooplankton of several species is supported, and support the hypothesis that this response is an induced defence mediated by the release of info-chemicals from zoopLankton.
Effects of aquatic macrophytes on water quality and phytoplankton communities in shallow lakes
- N. Takamura, Y. Kadono, M. Fukushima, M. Nakagawa, Baik‐Ho Kim
- Environmental ScienceEcological research
- 1 July 2003
We investigated aquatic macrophytes, water quality, and phytoplankton biomass and species composition in three shallow lakes with different levels of vegetation cover and nutrient concentration in…
Changes in microcystin production in cyanobacteria exposed to zooplankton at different population densities and infochemical concentrations
This is the first study to provide evidence of an induced defense of increased MC production by cyanobacteria in response to increasing zooplankton grazer density and increased concentrations of infochemicals released by zoopLankton.