2019 International Council for Exploration of the Sea (ICES) Workshop Announcement, Unavoidable Survey Effort Reduction
The International Council for Exploration of the Sea Working Group on Improving use of Survey Data for Assessment and Advice invites survey and stock assessment scientists to investigate challenges and responses to unavoidable reductions of survey effort. Most survey programs are at one time or another asked to make substantial short-term changes to survey operations due to budget reductions, weather, and vessel breakdowns and unavailability. These short-term effort reductions typically compromise the long-term objectives of survey series in terms of accuracy, precision, and consistency of population estimation. Usually, these reductions leave little time for planning and quantitative evaluation, so there is a real need to develop methods that provide a better understanding of the risks of different implementation options of methods that can reduce the amount of information loss, and which methods are appropriate for the survey design and objectives. These tools aim to assist survey scientists to make better decisions when unexpected events force changes, to facilitate better contingency planning, and to convey the likely consequences to assessment scientists and policymakers.
Participants Are Encouraged to Contribute to the Following Topics
The current processes used in dealing with unavoidable reductions in survey effort and examine the existing coping strategies (e.g. spatial coverage, survey frequency, or sampling density) and their qualitative consequences.
Develop key quality metrics that can be used to describe “total survey uncertainty” for survey derived indices of abundance for common survey designs.
Define “changes to survey designs” that require inter-survey calibration and what changes can be resolved by a model-based approach to index generation.
Develop methods that can provide quantitative decision-making tools describing the impacts on the quality of the survey deliverables and advisory products.
Participate or Present
- To express interest in participation, propose a presentation or for additional information, please contact Stan Kotwicki.