caa a22 4500 46790278X CHVBK 20180406152823.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10661-006-0765-6 doi (NATIONALLICENCE)springer-10.1007/s10661-006-0765-6 First Step for an Ecological Risk Assessment to Evaluate the Impact of Diffuse Pollution in Lake Vela (Portugal) [Elektronische Daten] [Nelson Abrantes, Ruth Pereira, Fernando Gonçalves] Lake Vela, located in the Portuguese littoral-centre, is a temperate shallow lake exhibiting a high trophic status. This aquatic ecosystem has been potentially exposed to contamination generated by agricultural and livestock activities held in their drainage basin, which seriously compromise their health. This work summarizes some background information and presents the problem formulation step of the ERA. Therefore, it evaluates the characteristics of the stressor(s), describes the ecological system and receptors and suggests a conceptual model, which predicts the potential exposure pathways, relating suspected sources to the defined endpoints. This introductory step also described an analysis plan on the entire study, which includes a delineation of the assessment design, data needs, measures, and methods for conducting the analysis phase of the risk assessment process. Springer Science + Business Media, Inc., 2006 ecological risk assessment nationallicence lakes nationallicence nutrients nationallicence pesticides nationallicence problem formulation nationallicence Abrantes Nelson Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut Pereira Ruth Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut Gonçalves Fernando Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut Environmental Monitoring and Assessment Kluwer Academic Publishers 117/1-3(2006-06-01), 411-431 0167-6369 117:1-3<411 2006 117 10661 https://doi.org/10.1007/s10661-006-0765-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-0765-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abrantes Nelson Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Pereira Ruth Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Gonçalves Fernando Departamento de Biologia da Universidade de Aveiro, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 117/1-3(2006-06-01), 411-431 0167-6369 117:1-3<411 2006 117 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer