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  • Journals
  • Articles  (5)
  • PAPER CURRENT  (5)
  • Oxford University Press  (4)
  • Stanford University  (1)
  • IUGG Secretariat, GFZ German Research Centre for Geosciences
  • 2010-2014  (5)
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  • Journals
  • Articles  (5)
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  • 1
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    Fisheries management under climate and environmental uncertainty: control rules and performance simulation (2014)
    Oxford University Press
    Details
    Publication Date: 2014-10-04
    Description: The ability of management strategies to achieve the fishery management goals are impacted by environmental variation and, therefore, also by global climate change. Management strategies can be modified to use environmental data using the "dynamic B 0 " concept, and changing the set of years used to define biomass reference points. Two approaches have been developed to apply management strategy evaluation to evaluate the impact of environmental variation on the performance of management strategies. The "mechanistic approach" estimates the relationship between the environment and elements of the population dynamics of the fished species and makes predictions for population trends using the outputs from global climate models. In contrast, the "empirical approach" examines possible broad scenarios without explicitly identifying mechanisms. Many reviewed studies have found that modifying management strategies to include environmental factors does not improve the ability to achieve management goals much, if at all, and only if the manner in which these factors drive the system is well known. As such, until the skill of stock projection models improves, it seems more appropriate to consider the implications of plausible broad forecasts related to how biological parameters may change in the future as a way to assess the robustness of management strategies, rather than attempting specific predictions per se .
    Print ISSN: 1054-3139
    Electronic ISSN: 1095-9289
    Topics: Biology , Geosciences , Physics
    Published by Oxford University Press
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    PAPER CURRENT
  • 2
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    Science Friction: Antarctic Research Whaling and the International Court of Justice (2014)
    Oxford University Press
    Details
    Publication Date: 2014-06-28
    Description: Whaling remains one of the most controversial and divisive aspects of the modern regulation of marine resources. In 1982, the International Whaling Commission, the global management body responsible for the regulation of whale stocks, instituted a moratorium on commercial hunting, which has been in force for almost 20 years. Nevertheless, a number of legal avenues exist within the current international regulatory framework to facilitate a degree of continued hunting. The most contentious of these is the scientific research exemption advanced under Article VIII of the International Convention for the Regulation of Whaling 1946, which provides for the national authorization of permits for lethal research. Japan has undertaken a significant programme of scientific whaling in Antarctica since 1987, despite widespread international criticism and an escalating campaign of nautical obstruction by militant activists, duly generating a long-standing legal dispute with Australia. On 31 March 2014, judgment was rendered by the International Court of Justice, in favour of Australia, ordering Japan to cease and desist its Antarctic whaling programme and refuting Japanese assertions that these activities had been legitimately conducted ‘for the purposes of scientific research’ as permitted under the 1946 Convention
    Print ISSN: 0952-8873
    Electronic ISSN: 1464-374X
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Law
    Published by Oxford University Press
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    PAPER CURRENT
  • 3
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    An overview of global catch statistics for inland fish (2011)
    Oxford University Press
    Details
    Publication Date: 2011-11-24
    Description: Welcomme, R. L. 2011. An overview of global catch statistics for inland fish. – ICES Journal of Marine Science, 68: 1751–1756. The reported global inland fish catch passed 10 million tonnes in 2008, after almost linear growth from the early 1950s. The rise coincides with an increasing number of reports of falling catches resulting from environmental degradation. It is thought that catches from inland waters were underreported in the past because of constraints on collecting the relevant data. National approaches to data collection are not generally comparable and their accuracy not usually assessed. National data processing and reporting should be audited, and training undertaken to harmonize these activities. The apparently bigger catches probably result from better reporting of actual catches rather than any increase in the amount of fish landed. Current data are sufficient only for a general overview of global inland catches of fish, rather than for the detailed analysis needed for management, policy formulation, and the valuation of inland fisheries. There is a need for improved approaches to data collection and for historical catches to be corrected to account for changes in methodologies and reporting procedures.
    Print ISSN: 1054-3139
    Electronic ISSN: 1095-9289
    Topics: Biology , Geosciences , Physics
    Published by Oxford University Press
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  • 4
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    All Climate Change is Local: Understanding and Predicting the Effects of Climate Change from an Organism’s Point of View (2013)
    Stanford University
    Details
    Publication Date: 2013-03-18
    Description: Global climate change is exerting profound effects on organisms and ecosystems. As resource managers and policymakers must contend with the ongoing and future effects of global climate change, they challenge scientists to predict where, when, and with what magnitude these effects are most likely to occur. By understanding the processes by which human-managed and natural ecosystems respond to a changing climate, and by quantifying levels of confidence in our ability to predict these effects, we may be able to prepare for some of these impacts, a form of adaptation to climate change. Here, we describe how knowledge of physiology can help to inform management decisions. Because physiological tolerance to environmental factors varies between species, there will likely be “winners” and “losers” in the face of climate change. We explore how a failure to consider the details of an organism’s physiology and ecology can hamper efforts to respond proactively to climate change and, conversely, how an understanding of how nonhuman organisms interact with their environment can help to provide a framework for anticipating and preparing for future changes in natural and managed ecosystems. We examine some of the physiological responses of marine organisms to climate change in three examples: thermal stress in marine invertebrates, ramifications of water temperature changes on fish bioenergetics and thus on fish reproduction and growth, and effects of changes in wave forces on damage to corals and kelp. Because factors such as temperature interact with other stressors like overexploitation and pollution to drive patterns of mortality, it may be possible to prevent some damage by reducing the impact of stressors not related to climate change. Methods such as ecological forecasting and the utilization of bioenergetic budgets can be used to help guide future adaptation to climate change by providing forecasts within a probabilistic framework. Author:  Brian Helmuth Lauren Yamane Katharine J. Mach Shilpi Chhotray Phil Levin Sarah Woodin Issue:  Climate change Download:  61_Helmuth Final.pdf
    Electronic ISSN: 2161-2331
    Topics: Natural Sciences in General , Political Science , Law
    Published by Stanford University
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  • 5
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    Patterns in groundfish abundance along the Eastern Bering Sea outer continental margin (2013)
    Oxford University Press
    Details
    Publication Date: 2013-08-22
    Description: Wigand, L. A., Klinger, T., and Logsdon, M. G. 2013. Patterns in groundfish abundance along the Eastern Bering Sea outer continental margin. – ICES Journal of Marine Science, 70: 1181–1197. Place-based management approaches require understanding the spatial arrangement and interaction of elements. To address this need, we explored the utility of spatial-pattern analysis to understand the distribution of groundfish in the Eastern Bering Sea outer continental margin. We divided this region into discrete geomorphological units to explore spatial pattern on a range of scales. We used groundfish catch per unit effort (cpue) trawl survey data collected in four years to quantify spatial autocorrelation. Global statistics indicated that groundfish cpue was dominated by clusters of low values in all years. Local statistics showed that clusters of low values in groundfish cpue were confined to the southern portion of the study area, while clusters of high values varied across the study area. Outliers were most commonly found in close proximity to the shelf–slope break. Our results reveal the existence of spatial dependency in groundfish abundance and demonstrate that spatial analysis can be used to better understand spatial arrangements of these and other living marine resources, and to quantify and validate the local ecological knowledge of resource users. Our results indicate the feasibility of using spatially explicit tools to improve integration and visualization of marine environmental data for purposes of management and conservation.
    Print ISSN: 1054-3139
    Electronic ISSN: 1095-9289
    Topics: Biology , Geosciences , Physics
    Published by Oxford University Press
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    PAPER CURRENT
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