The bioassessment of aquatic ecosystems is currently based on various biotic indices that
use the occurrence and/or abundance of selected taxonomic groups to define ecological …

The biological assessment of rivers ie, their assessment through use of aquatic
assemblages, integrates the effects of multiple-stressors on these systems over time and is …

Freshwater biota are more comprehensive and direct indicators of biological impacts, and
more meaningful to the public than water quality or physical habitat surrogates. Freshwater …

Non-perennial rivers and streams (NPRS) cover> 50% of the global river network. They are
particularly predominant in Mediterranean Europe as a result of dry climate conditions …

Rivers and streams that do not flow permanently (herein intermittent rivers; IR s) make up a
large proportion of the world's inland waters and are gaining widespread attention. We …

Intermittent rivers and ephemeral streams (IRES) are common across Europe and dominate
some Mediterranean river networks. In all climate zones, IRES support high biodiversity and …

Freshwaters face multiple environmental problems including eutrophication, acidification,
salinization, and climate-change, all of which can lead to impairment of ecosystem structure …

Diatoms have been widely used to detect changes in streams and rivers water quality due to
their specific sensibility to a variety of ecological conditions. Their tolerances and …

Abstract The European Water Framework Directive establishes a framework for the
protection of water resources. However, common water management tools demand common …

Previous research indicated that high predictive performance in species distribution
modelling can be obtained by combining both biotic and abiotic habitat variables. However …