WCPFC SECOND MANAGEMENT OBJECTIVES WORKSHOP Cairns, Australia 28-29 November 2013 REPRESENTING UNCERTAINTY, RISK AND PERFORMANCE INDICATORS AGAINST FISHERY MANAGEMENT OBJECTIVES AND REFERENCE POINTS
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WCPFC MANAGEMENT OBJECTIVES WORKSHOP Manila, Republic of the Philippines 28-29 November 2012 CONSIDERATION OF TARGET REFERENCE POINTS FOR WCPO STOCKS WITH AN EMPHASIS ON SKIPJACK TUNA
Executive BLOCKINSummary This paper is one of a suite of three pieces of work contracted to inform the WCPFC Management Objectives Workshop, planned to be held prior to WCPFC9. This paper focuses on target reference points, and the other two papers focus on limit reference points and harvest control rules. The presentation of this work to SC8 will provide the feedback necessary to undertake fur...
متن کاملConsideration of target reference points for WCPO stocks with an emphasis on skipjack tuna
Executive BLOCKINSummary This paper is one of a suite of three pieces of work contracted to inform the WCPFC Management Objectives Workshop, planned to be held prior to WCPFC9. This paper focuses on target reference points, and the other two papers focus on limit reference points and harvest control rules. The presentation of this work to SC8 will provide the feedback necessary to undertake fur...
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The northern tuna stocks in the Pacific have specific characteristics: long-term large variability of the total biomass, sparse stock-recruitment relationship, and no obvious indication of recruitment overfishing even though the spawning stock biomass sometime fell into in a very low level. In contrast, southern stocks in the Pacific have one way decreasing trends in shorter exploitation histor...
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The evaluation of a range of fixed-effort scenarios (undertaken as part of the recently completed project " Development of an operating model and evaluation of harvest strategies for the Eastern Tuna and Billfish Fishery ") provided guidance on identifying an appropriate initial Total Allowable Effort (TAE) for the longline fleet in the ETBF. However, ideally, any harvest strategy adopted for t...
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Decision-makers charged with implementing ecosystem-based management (EBM) rely on scientists to predict the consequences of decisions relating to multiple, potentially conflicting, objectives. Such predictions are inherently uncertain, and this can be a barrier to decision-making. The Convention on the Conservation of Antarctic Marine Living Resources requires managers of Southern Ocean fisher...
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