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1. Accounting for transient dynamics could improve the use of marine protected areas as a reference point for fisheries management

   https://doi.org/10.1139/cjfas-2022-0125  

   Quennessen, V.I.; Babcock, E.A.; White, J.W. (January 2023, Canadian Journal of Fisheries and Aquatic Sciences)

   Biological reference points for fishery management depend on estimates of current stock status relative to unfished biomass (depletion). The ratio of fish density outside to inside a marine reserve, the density ratio, could serve as a proxy for depletion for data-poor management. However, transient dynamics associated with time lags in returning to the unfished state following reserve implementation make that proxy inaccurate on short time scales. We assessed density ratio management rules using an age-structured, spatially explicit model of four US west coast nearshore fishes following reserve implementation, with scenarios encompassing sampling error, recruitment variability, and uncertainty in natural mortality. In deterministic simulations, management incorporating time lags generally resulted in a higher mean and lower variability in biomass over 20 years, but lower mean yield compared to management that did not. However, when stochastic recruitment was included, differences among simulations due to stochasticity were much greater than any difference in performance between management strategies. Nonetheless, in certain cases, accounting for time lags could help avoid unwarranted increases in harvest effort after reserve implementation. 

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2. Analyzing Water Supply Management and Governance Institutions Across Scales

   Lawless, Krista (December 2024, Proquest)

   This dissertation provides a foundation for understanding how water governance has changed over time, how watershed positionality and governance level shape the goals and strategies as well as the coordination of organizations actively involved in water issues, and how local, rural stakeholders changed legacy groundwater management. The first study examines the evolution of Colorado River Basin water management over the last century to understand how changing environmental conditions and path dependency have shaped past water management changes. Improved understanding can help inform policy responses to current challenges. The combined spatial, temporal, and network analyses show that Colorado River Basin water governance has been influenced by 100 years of rules that are layered and still in place. The rules have evolved water management strategies over time, shifted the emphasis of water management actions, and changed the distribution of authority across actions and rule levels. The second study explores how water management coordination varies based on governance level and physical location in the watershed. Additionally, this study analyzes how the level of governance and hydrologic position of organizations shape goals, strategies, and beliefs about the risks and benefits of changes to Colorado River Basin water management factors. The content and cluster analysis found the level of governance more influential than the hydrologic position and that coalitions can rearrange in a short period of time based on how the issue is framed. The last study unveils how local, rural residents were able to change legacy groundwater management through a process that began with a social movement to a ballot initiative to public input on groundwater management via a management goal-setting policy process in the Douglas Groundwater Basin in Arizona. The framing analysis shows that the public can identify problems and solutions, including paired solutions, but residents do not know whom to identify as being responsible for addressing water management in the basin. 

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3. What time is it: managing time in the internet

   https://doi.org/10.1145/3340301.3341125  

   Mani, Sathiya Kumaran; Barford, Paul; Durairajan, Ramakrishnan; Sommers, Joel (July 2019, Proceedings of the ACM/IRTF/ISOC Applied Networking Research Workshop)

   In this paper, we report on our investigation of how current local time is reported accurately by devices connected to the internet. We describe the basic mechanisms for time management and focus on a critical but unstudied aspect of managing time on connected devices: the time zone database (TZDB). Our longitudinal analysis of the TZDB highlights how internet time has been managed by a loose confederation of contributors over the past 25 years. We drill down on details of the update process, update types and frequency, and anomalies related to TZDB updates. We find that 76% of TZDB updates include changes to the Daylight Saving Time (DST) rules, indicating that DST has a significant influence on internet-based time keeping. We also find that about 20% of updates were published within 15 days or less from the date of effect, indicating the potential for instability in the system. We also consider the security aspects of time management and identify potential vulnerabilities. We conclude with a set of proposals for enhancing TZDB management and reducing vulnerabilities in the system. 

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4. Evaluating the effectiveness of real-time closures for reducing susceptibility of small fish to capture

   https://doi.org/10.1093/icesjms/fsx152  

   Woods, Pamela J.; Elvarsson, Bjarki Þór; Sigurdsson, Thorsteinn; Stefánsson, Gunnar (August 2017, ICES Journal of Marine Science)

   Real-time spatial management in fisheries, a type of dynamic ocean management, uses nearly real-time data collection and dissemination to reduce susceptibility of certain species or age classes to being caught in mixed fisheries. However, as with many fisheries regulations, it is difficult to assess whether such a regulation can produce tangible results on population dynamics. In this study, we take advantage of a rare opportunity in which data regarding real-time closures (RTCs) are available for 1990–2014 alongside annual estimates of fishing mortality for three species (Atlantic cod, haddock, and herring) and catch for four species (all plus saithe) in Icelandic fisheries management. We use time series analyses to assess whether RTCs work as expected and yield a lower susceptibility of small fish to being caught, indicated by lower catch levels and selectivities (as estimated from fishing mortalities) in years with more closures. Results indicate that haddock and herring followed this pattern, but only under conditions of generally high fishing mortality. This study represents the first time evidence has been presented that real-time fishery closures can have a beneficial effect on population dynamics, but also suggests that results differ among species. 

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5. Adding Domain-Specific Features to a Text-Editor to Support Diverse, Real-World Approaches to Time Management Planning

   https://doi.org/10.1145/3544548.3581536  

   Wiese, Jason; Lund, John R.; Kabir, Kazi Sinthia (April 2023, ACM)

   Many tools are designed to support users in maintaining or developing strong time management practices. Abandonment of these specialized tools is common, in favor of returning to a more general-purpose unstructured tool. How can designs leverage the familiarity of general-purpose tools and the advantages of specialized ones? We explore if applying a time-management-specific understanding of conventions and interactions within unstructured plaintext can be a successful approach to designing support for these tasks. We report the results of two field deployments (combined n=29) of “Plan” - a mobile application with a notes-application-based interface designed to support the practice of Time Management Planning. We show that modest, domain-specific modifications of general-purpose designs can facilitate users’ pre-existing workflows and nudge them towards better practices while leaving interfaces familiar and flexible. However, those with minimal planning experience desired additional structure. 

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