نتایج جستجو برای: bioassessment

تعداد نتایج: 217  

Journal: :Environmental toxicology and chemistry 2010
Travis S Schmidt William H Clements Katharine A Mitchell Stanley E Church Richard B Wanty David L Fey Philip L Verplanck Carma A San Juan

Two toxic-unit models that estimate the toxicity of trace-metal mixtures to benthic communities were compared. The chronic criterion accumulation ratio (CCAR), a modification of biotic ligand model (BLM) outputs for use as a toxic-unit model, accounts for the modifying and competitive influences of major cations (Ca²(+), Mg²(+), Na(+), K(+), H(+)), anions (HCO₃⁻, CO²⁻₃ ,SO²⁻₄, Cl⁻, S²⁻) and dis...

2015
Franck Lejzerowicz Philippe Esling Loïc Pillet Thomas A. Wilding Kenneth D. Black Jan Pawlowski

Environmental diversity surveys are crucial for the bioassessment of anthropogenic impacts on marine ecosystems. Traditional benthic monitoring relying on morphotaxonomic inventories of macrofaunal communities is expensive, time-consuming and expertise-demanding. High-throughput sequencing of environmental DNA barcodes (metabarcoding) offers an alternative to describe biological communities. Ho...

Journal: :Environmental monitoring and assessment 2015
Daniel F Buss Daren M Carlisle Tae-Soo Chon Joseph Culp Jon S Harding Hanneke E Keizer-Vlek Wayne A Robinson Stephanie Strachan Christa Thirion Robert M Hughes

Water quality agencies and scientists are increasingly adopting standardized sampling methodologies because of the challenges associated with interpreting data derived from dissimilar protocols. Here, we compare 13 protocols for monitoring streams from different regions and countries around the globe. Despite the spatially diverse range of countries assessed, many aspects of bioassessment struc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید