scholarly journals Multiple stressor effects on biological quality elements in the Ebro River: Present diagnosis and predicted responses

2018 ◽  
Vol 630 ◽  
pp. 1608-1618 ◽  
Author(s):  
Albert Herrero ◽  
Cayetano Gutiérrez-Cánovas ◽  
Olga Vigiak ◽  
Stefanie Lutz ◽  
Rohini Kumar ◽  
...  
Keyword(s):  
Ebro River ◽  
Biological Quality ◽  
Multiple Stressor ◽  
Biological Quality Elements

Trophic conditions in rivers and streams – significance for biological quality elements of the European Water Framework Directive

2013 ◽  
Vol 8 (1) ◽  
pp. 41-46
Author(s):  
Michael Weyand ◽  
Theresia Döppner ◽  
Petra Podraza
Keyword(s):  
Water Framework Directive ◽  
Trophic Status ◽  
Influencing Factor ◽  
Benthic Invertebrate ◽  
Water Bodies ◽  
European Water Framework Directive ◽  
Trophic Conditions ◽  
Biological Quality ◽  
Biological Quality Elements ◽  
European Water

In the past, saprobic and trophic conditions were both used as indicators to assess and monitor the quality of surface water bodies. Now, with the introduction of the European Water Framework Directive (WFD), the focus in the assessment of aquatic systems has shifted towards better integration of biocoenotic parameters, expressed as biological quality elements. With this change, saprobity is still used, at least as partially, in the evaluation of benthic invertebrate fauna. The term ‘trophic status’, however, no longer appears as a separate criterion. It is the aim of this paper to show that all quality components depend to a greater or lesser extent on the water bodies' trophic status, so that this term will maintain its significance as a key influencing factor.

scholarly journals Towards the implementation of the Water Framework Directive in Mediterranean transitional waters: the use of macroinvertebrates as biological quality elements

2013 ◽  
Vol 4 (2) ◽  
pp. 212
Author(s):  
David Cabana ◽  
Kalliopi Sigala ◽  
Artemis Nicolaidou ◽  
Sofia Reizopoulou
Keyword(s):  
Water Framework Directive ◽  
Reference Conditions ◽  
Assessment Tools ◽  
Ecological Quality ◽  
Transitional Waters ◽  
Biological Quality ◽  
Biological Quality Elements ◽  
Ecological Quality Status ◽  
Status Assessment ◽  
Quality Status

During the last decade the Water Framework Directive (WFD) has driven scientific community endeavours towards the development of assessment tools to determine the Ecological Quality Status (EQS) for all surface waters, including transitional waters (TWs). Macroinvertebrates being used as Biological Quality Elements encouraged the development of distinct multimetric and multivariate indices, initially based on taxonomic approaches. Those indices were mostly developed for the marine environment and applied extensively on TWs. The main discrepancies in the ecological quality status assessment arise on TWs, partially due to the difficulty in discriminating the effects of natural stress from anthropogenic impact. As a response, indices following functional approaches are being developed and applied in assessing the EQS in these environments. Next, the validation and intercalibration of the metrics as well as the settlement of reference conditions are additional sources of variability inherent to any assessment. This paper aims at briefly presenting the different steps needed for the implementation of WFD on Mediterranean TWs. It highlights existing difficulties and possible research lines to be explored in order to reduce sources of variability and better assess the status of such water bodies.

Effect of leaf litter quantity and type on forest soil fauna and biological quality

2013 ◽  
Vol 21 (2) ◽  
pp. 206-213 ◽  
Author(s):  
Yuan Zhizhong ◽  
Cui Yang ◽  
Yan Shaokui
Keyword(s):  
Forest Soil ◽  
Leaf Litter ◽  
Soil Fauna ◽  
Biological Quality ◽  
Litter Quantity

Biochemical and Biological Quality Control of Two Recombinant Human Erythropoietin Biosimilar Products

2017 ◽  
Vol 13 (6) ◽  
Author(s):  
Rym Hassiki ◽  
Jamila Behi ◽  
Nadia Ben Said ◽  
Lassaad Boujbel ◽  
Balkiss Bouhaouala-Zahar
Keyword(s):  
Quality Control ◽  
Recombinant Human Erythropoietin ◽  
Biological Quality ◽  
Human Erythropoietin

scholarly journals The Temporal Dynamics of Multiple Stressor Effects: From Individuals to Ecosystems

2021 ◽  
Vol 36 (5) ◽  
pp. 402-410
Author(s):  
Michelle C. Jackson ◽  
Samraat Pawar ◽  
Guy Woodward
Keyword(s):  
Temporal Dynamics ◽  
Multiple Stressor
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