Both natural and anthropogenic processes can lead to the increasing salinity of surface
waters. The knowledge about the ecological consequences of salinization on the biota is …

The invasion and spread of non-native species of many different kinds of organisms is of
increasing interest to researchers. Invasions by microscopic organisms, however, are poorly …

This chapter briefly introduces the diverse morphologies of freshwater algae, explaining
seven basic types, which range from unicells to colonies (which may or may not be …

In scarcity of light and primary producers, subterranean ecosystems are generally extremely
oligotrophic habitats, receiving poor supplies of degradable organic matter from the surface …

Blooms of the stalked diatom Didymosphenia geminata (Lyngbye) M. Schmidt, 1899 have
been increasingly reported worldwide since the 1990s. In 2004, the appearance of blooms …

The value of distinguishing native from nonnative invasive species has recently been
questioned. However, this dichotomy is important for understanding whether a species' …

Ceratium species are not a common component of freshwater phytoplankton in South
America. However, these dinoflagellates have often been observed in many water bodies …

In the context of global environmental changes, Mediterranean rivers are considered highly
endangered. Temporal and spatial increases of the dry stretches during the summer lead to …

Diatoms are considered unicellular eukaryotic organisms exclusively depositing biogenic
silica. Heretofore there has been no report of calcification by these algae. Here it is shown …

The bloom‐forming freshwater stalked diatom Didymosphenia geminata is unusual among
algae in that nuisance growths occur almost exclusively in oligotrophic waters. Current …