Cyanobacterial blooms in freshwaters represent a major ecological and human health problem worldwide. This paper briefly summarizes information on major cyanobacterial toxins (hepatotoxins, neurotoxins etc.) with special attention to microcystins-cyclic heptapeptides with high acute and chronic toxicities. Besides discussion of human health risks, microcystin ecotoxicology and consequent ecolog...

A new species of anisogammarid amphipod, Jesogammarus (Jesogammarus) ikiensis sp. n., is described from freshwaters in the Iki Island, Nagasaki Prefecture, Japan, based on results of morphological and molecular analyses. The new species is distinguished from all members of the genus by the combination of small number of setae on dorsal margins of pleonites 1-3, short and small number of setae o...

Abstract The dynamic interactions between dissolved organic matter (DOM) and particulate (POM) are central in nutrient cycling freshwater ecosystems. However, the molecular-level mechanisms of such still poorly defined. Here, we study spatial differences chemical (i.e., individual proteinaceous amino acids) microbial 16S rRNA) composition suspended sediments River Chew, UK. We then applied a co...

Organic carbon (OC), iron (Fe), metal, and phosphorus (P) are key aquatic components that largely determine the biotic abiotic functioning of freshwater systems, including groundwater, soil water, lakes, rivers, their estuaries [...]