WP 6: Project synthesis

Description of work

The purpose of this WP is to develop and evaluate strategies for the rebuilding of stocks, which are outside safe biological limits as well as other, exploited fish stocks, via synthesis and application of findings in the earlier WPs. Strategies will take into account key aspects that may be important for stock recovery (i.e. in addition to biological and environmental factors, fisheries and technical as well as socio-economic issues). The activities in this WP will be conducted in three, closely inter-related tasks.

The first taskwill form a synthesis of the efforts within WPs 1-3 and produce: i) qualitative information on the functioning of recovery plans to aid in the generation of additional scientific hypothesis, ii) quantitative statistical or mechanistic relationships and process models to be used in simulations of stock recovery and future stock assessments, iii) output of coupled bio-physical early life stage or multi-species models. Combined results of WP1-3 will be used to develop stock dynamic models (conceptual, quantitative retrospective as well as predictive) that can be utilized to develop dynamic life cycle models (i.e., models sensitive to stock demography and key environmental processes and fisheries effects).

In the second task the potential for success of recovery plans generated in UNCOVER will be assessed. This includes: i) consideration of potential sources of “scientific??? uncertainty affecting the efficiency of stock recovery plans, ii) assessment of the requirements for implementation of a successful recovery plan, including management objectives, agreements with and among stakeholders as well as the social economic and political constraints. Furthermore it will assess the consequences of the implementation of recovery plans as well as the ramifications of accepting existing status quo management approaches.

In the third and final task, a between-system comparison of properties predicted to contribute to successful recovery strategies will be performed to assess whether generic recovery plan strategies can be developed for stocks outside safe biological limits or if it is necessary to rely on Case Study specific plans. The comparative approach is a powerful tool for resolving the effects of a range of physiological and population limiting processes on the dynamics of individuals and populations.  Hence due to the broad geographic range examined and the subsequent ranges in environmental conditions UNCOVER allows the testing of mechanisms influencing recovery over the physiological ranges of key players with contrasting life strategies, such as gadoids and clupeids. It is planned to expand this comparative approach to fisheries management and socio-economic issues related to fisheries targeting these species.

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