Browsing by Author "Restrepo, Victor"

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    Effort rights-based management
    (John Wiley and Sons Ltd, 2017) Squires, Dale; Maunder, Mark; Allen, Robin; Andersen, Peder; Astorkiza, Kepa; Butterworth, Doug S; Caballero, Gonzalo; Clarke, Raymond; Ellefsen, Hans; Guillotreau, Patrice; Hampton, John; Hannesson, Rognvaldur; Havice, Elizabeth; Helvey, Mark; Herrick Jr, Samuel; Hoydal, Kjartan; Maharaj, Vishwanie; Metzner, Rebecca; Mosqueira, Iago; Parma, Ana; Prieto-Bowen, Ivan; Restrepo, Victor; Sidique, Shaufique Fahmi; Steinsham, Stein Ivar; Thunberg, Eric; del Valle, Ikerne; Vestergaard, Niels
    Effort rights-based fisheries management (RBM) is less widely used than catch rights, whether for groups or individuals. Because RBM on catch or effort necessarily requires a total allowable catch (TAC) or total allowable effort (TAE), RBM is discussed in conjunction with issues in assessing fish populations and providing TACs or TAEs. Both approaches have advantages and disadvantages, and there are trade-offs between the two approaches. In a narrow economic sense, catch rights are superior because of the type of incentives created, but once the costs of research to improve stock assessments and the associated risks of determining the TAC and costs of monitoring, control, surveillance and enforcement are taken into consideration, the choice between catch or effort RBM becomes more complex and less clear. The results will be case specific. Hybrid systems based on both catch and effort are increasingly employed to manage marine fisheries to capture the advantages of both approaches. In hybrid systems, catch or effort RBM dominates and controls on the other supplements. RBM using either catch or effort by itself addresses only the target species stock externality and not the remaining externalities associated with by-catch and the ecosystem.
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    Improving communication: the key to more effective MSE processes
    (2019) Miller, Shana; Anganuzzi, Alejandro; Butterworth, Doug S; Davies, Campbell; Donovan, Greg; Nickson, Amanda; Rademeyer, Rebecca; Restrepo, Victor
    The use of management strategy evaluation (MSE) to design and test candidate fisheries management approaches is expanding globally. Participation of managers, scientists, and stakeholders should be an integral component of the MSE process. Open and effective communication among these groups is essential for the success of the MSE and the adoption of the management approach based on it. The highly technical nature of MSE and newness of the approach to many audiences present considerable communication challenges and have, unfortunately, slowed progress in some cases. We draw on diverse experiences with MSE to identify two areas in which the implementation of MSE in multinational fora may be improved: (i) the use of formally constituted “intermediary groups” as a forum for exchange at the management–science interface and (ii) the development of engaging, yet uncomplicated, visual communication tools for conveying key results to different audiences at each stage. While our focus is the MSE processes underway in the regional fisheries management organizations for tunas and tuna-like species, the advice provided is also pertinent for other fisheries, international and domestic alike, pursuing MSE.