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- Title
An evaluation of acceptable biological catch (ABC) harvest control rules designed to limit overfishing.
- Authors
Wiedenmann, John; Wilberg, Michael; Sylvia, Andrea; Miller, Thomas
- Abstract
In this paper we developed a simulation model to evaluate a range of acceptable biological catch (ABC) control rules to determine their relative performance at achieving common fishery management objectives. We explored a range of scenarios to determine robustness of a control rule to different situations and found that across scenarios the control rules that used a buffer to account for scientific uncertainty when setting the ABC were able to limit the frequency of overfishing. Modest buffers when setting the ABC were generally effective at limiting overfishing, but larger buffers resulted in higher average biomass, similar long-term benefits to the fishery (high yield, low variability in yield), more rapid recovery of depleted populations, and a lower risk of the population being overfished, and these results were robust to the level of uncertainty in the assessment model estimates. In addition, fixing the ABC over the interval between assessments and having a short interval between assessments was generally more effective at meeting management objectives than using projections and having a long assessment interval.
- Subjects
UNITED States; OVERFISHING; FISHERIES; FISHERY sciences; FISHERY laws; WILDLIFE conservation laws; TWENTIETH century; PREVENTION
- Publication
Canadian Journal of Fisheries & Aquatic Sciences, 2017, Vol 74, Issue 7, p1028
- ISSN
0706-652X
- Publication type
Article
- DOI
10.1139/cjfas-2016-0381