Research Publications: UM-SG-RS-2017-20

Title:

An evaluation of acceptable biological catch (ABC) harvest control rules designed to limit overfishing

Year:

2017

Authors:

Wiedenmann, J; Wilberg, M; Sylvia, A; Miller, T

Source:

Canadian Journal of Fisheries and Aquatic Sciences
74 ( 7 ) : 1028 - 1040

DOI:

10.1139/cjfas-2016-0381

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.

Maryland Sea Grant Topic(s):

'Related Research Project(s)' link to details about research projects funded by Maryland Sea Grant that led to this publication. These details may include other impacts and accomplishments resulting from the research.

'Maryland Sea Grant Topic(s)' links to related pages on the Maryland Sea Grant website.

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