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Pages 1-8

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From page 1...
... Although the MSFCMA contained language to "prevent The Committee on Evaluating the Effectiveness of overfishing," the emphasis was on developing the domes- Stock Rebuilding Plans of the 2006 Fishery Conservation tic fishery. Major declines in the productivity of several and Management Reauthorization Act reviewed the techniimportant fisheries led Congress to amend the MSFCMA in cal specifications that underlie the current set of federally 1996, with the Sustainable ­Fisheries Act, which more clearly implemented rebuilding plans, the outcomes of those plans defined overfishing and required rebuilding of overfished in terms of trends in fishing mortality and stock size, and the stocks within a specified time limit.
From page 2...
... Harvest control rules that promptly but gradually stocks, and (2) to determine the probability that a particular reduce fishing mortality as estimated stock size stock will rebuild by a certain date.
From page 3...
... more robust to scientific uncertainty than do biomass refer- Because of the uncertainty in stock assessments, the ence points. Fishing mortality reference points are often perceived status of fish stocks in any particular year can more reliably estimated at lower stock sizes than are biomass change substantially as more data become available and as reference points, whose estimates rely more strongly on assessment methods change over time.
From page 4...
... unfavorable environmental conditions) , a control rule aimed • Of the 20 stocks estimated to still be overfished, 11 at maintaining fishing mortality at some constant level below had fishing mortalities well below FMSY during the FMSY may forgo less yield, especially in mixed-stock situa- last year included in the assessment and are theretions, and have fewer social and economic impacts than one fore expected to rebuild if low fishing mortalities that forces increasingly severe controls in an attempt to keep are sustained.
From page 5...
... Identify the TASK 4 economic, social, and ecological tradeoffs of rebuilding a Consider the effects of climate and environmental conditions, fishery associated with shorter or longer rebuilding times. habitat loss and degradation, ecological effects of fishing on Evaluate available methods for integrating these social, ecothe food chain, and ecological interactions among multiple nomic and ecological factors when designing and evaluating species, and identify ways to adjust rebuilding plans to take rebuilding plans.
From page 6...
... e.g., by gear type, recreational versus commercial, and size When data are insufficient to perform analytical stock of fishing vessel) and linking this allocation with additional assessments to estimate biomass and fishing mortality controls (e.g., restrictions on locations, seasons, technology, reference points with sufficient confidence for the design size and sex of catch, number of trips, and retained harvest and application of MSY-based control rules, alternative per trip)
From page 7...
... In some surrounding rebuilding with a long-term view to improve the cases rebuilding plans failed to reduce fishing mortality as efficiency of the current approach to stock rebuilding. These much as intended in the rebuilding plan, either because of issues directly or indirectly relate to the overarching issue overestimation of stock sizes or because of implementation of what is the appropriate balance between prescription and issues, and in these cases rebuilding has been slow or has flexibility in stock rebuilding.


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