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Environmental Expertise
Provides an overview of the important role that environmental experts play at the science-policy interface, and the complex challenges they face.
Management Science in Fisheries
A key goal of fisheries management is to regulate extractive pressure on a resource so as to ensure social, economic and ecological sustainability. This text provides an accessible entry point for students and professionals to management science as developed in fisheries, in order to facilitate uptake of the latest ideas and methods. Traditional management approaches have relied upon a stock assessment based on existing understanding of resource status and dynamics, and a prediction of the likely future response to a static management proposal. However all such predictions include an inherent degree of uncertainty, and the last few decades have seen the emergence of an adaptive approach that...
The Paradoxes of Transparency
"The International Council for the Exploration of the Sea (ICES) is the central scientific network within the massive set of bureaucracies that is responsible for Europe's Common Fisheries Policy (CFP). While spending the past 25 years failing to sustain Europe's fish stocks, this management system also became adept at making the lives of its scientists miserable. Now it is being confronted by the complex challenge of an ecosystem-based approach to fisheries management. If this combination of a multi-national bureaucracy, hard politics, and scientific uncertainty has made it impossible to maintain many individual fish stocks, how are decisions going to be made that consider everything from s...
Inter-Benchmark Protocol N North Sea Herring (IBPNSherring 2021)
A single-stock was included in this inter-benchmark: North Sea Autumn Spawning (NSAS) herring (her.27.3a47d). This inter-benchmark process was put forward because of: 1) newly available natural mortality values and 2) a discrepancy in the handling of natural mortality (M). For the NSAS assessment, natural mortality is provided every 3–4 years by WGSAM. This is often associated with a rescaling of the assessment. At WKPELA 2018, a profiling method was developed to handle the introduction of new natural mortalities and in turn, alleviate the potential rescaling of the assessment. The method consists of the testing of the fit of the assessment model for a range of additive rescaling (fixed ac...
