Ecological Risk Assessment Guidelines
The ERA Process: Plan Assessment
The development of an analysis plan is the first formal stage of an ERA. The risk assessor is responsible for this stage.
The risk assessor is primarily responsible for the formal stages of the ecological risk assessment. Ongoing communication between the risk assessor and risk manager will ensure optimum alignment.
Collect Information on Context
Collect available information and data to achieve the following:
Draw up a cause-effect diagram of sources, stressors, exposure routes, end points, responses and measures representing the risk hypotheses.
Risk hypotheses are predictions of relationships between stressor, exposure and the response of the assessment end points.
Select what to Protect
Describe the ecosystem potentially at risk according to functional and/or structural relationships (e.g. Ecosystem model).
Identify potential assessment end points:
Assessment end points are the definitivemeasures that scientifically and ecologically represent the broader management concerns.
Develop Plan to Evaluate Hypotheses
Develop an analysis plan that describes how the risk hypotheses will be assessed. Select and describe the measures of exposure, measures of effect and measures of ecosystem and receptor characteristics. Independent lines of evidence should be considered. Indicate how data will be analysed or modelled and how results will be presented. Discuss the analysis plan with the risk manager to ensure that the results will allow consideration of options and inform sound decisions. The analysis plan should be peer reviewed ...more
Collate Data and Information
Collate detailed information that is relevant to the risk hypothesis and analysis plan. ...more
Collate = Examine + Compare
New insights obtained during this phase may necessitate that the Agree on Objectives phase be revisited.