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1.
This session focused on the role of gear technology in the conservationand sustainable exploitation of fish stocks and other marineresources, and how it has contributed to more ecosystem-basedapproaches to fishery management that strive to fulfil the commitmentsof the World Summit on Sustainable Development (WSSD) and theConvention on Biodiversity (CBD). Within this context, SessionII benefited from a keynote presentation by Simon Jennings andAndrew Revill (Jennings and Revill, 2007) that addressed preciselythese issues. They highlighted the need for a decision-supportframework or "toolbox" that would allow managers to determinewhen it was appropriate or cost-effective to seek a solutionto a particular environmental problem through technologicalsolutions to gear design, or its use with other possible mitigationmeasures, such as effort reduction or area closures. Examplesare well documented of gear technology providing  相似文献   

2.
Public participation in decision-making about development has many benefits especially in the coastal zone and in the near-shore marine environment. This research expands the discussion of public involvement in decisions about marine resource use by examining public participation in environmental impact assessment as relevant for offshore renewable energy facilities. A review of empirical and theoretical research supports the development of a framework for further analysis. The framework consists of five main features: (1) effective communication, (2) broad-based inclusion, (3) prioritization, (4) early three-way learning, and (5) alternatives analysis. The paper's concluding sections explore the relevance of such a framework and indicate possible applications.  相似文献   

3.
As a signatory to the World Summit on Sustainable Development (WSSD), the European Union (EU) has made a commitment to maintain or restore fish stocks to levels that can produce the maximum sustainable yield (MSY), and where possible not later than 2015. So how has the EU's Common Fisheries Policy (CFP) fared in trying to achieve this objective? The development of the status of 41 commercially exploited fish stocks from the North East Atlantic, North Sea and Baltic Sea (FAO Area 27) was analysed together with the economic performance of the fleets exploiting those stocks. The analyses indicate that the exploitation status for many of the stocks has greatly improved during the last 10 years while the economic performance of the fleets over the same period has been highly variable. The main economic indicators (gross value added (GVA) and operating cash flow (OCF)) have gradually improved at a time when the general economic situation, which has a great influence on the markets, costs and purchase power, has worsened. While recognizing that much remains to be done to achieve the objective of the WSSD, the analyses indicate that actions implemented in the last decade under the CFP have led to an improvement in the status of many commercially important fish stocks and their fleets towards levels that are closer to those producing MSY.  相似文献   

4.
Since the advent of Global Navigation Satellite Systems, it has been possible to perform hydrographic survey reductions through the ellipsoid, which has the potential to simplify operations and improve bathymetric products. This technique requires a spatially continuous separation surface connecting chart datum (CD) to a geodetic ellipsoid. The Canadian Hydrographic Service (CHS), with support from the Canadian Geodetic Survey, has developed a new suite of such surfaces, termed Hydrographic Vertical Separations Surfaces, or HyVSEPs, for CD and seven tidal levels. They capture the spatial variability of the tidal datum and levels between tide gauges and offshore using semiempirical models coupling observations at tide stations with relative sea-level rise estimates, dynamic ocean model solutions, satellite altimetry, and a geoid model. HyVSEPs are available for all tidal waters of Canada, covering over seven million square kilometers of ocean and more than 200,000 kilometers of shoreline. This document provides an overview of the CHS's modeling approach, tools, methods, and procedures.

The HyVSEP for CD defines the new hydrographic datum for the tidal waters of Canada. HyVSEPs for other tidal levels are fundamental for coastal studies, climate change adaptation and the definition of the Canadian shoreline and offshore boundaries. HyVSEPs for inland waters are not discussed.  相似文献   


5.
Traditionally, the ‘social licence to operate’ (SLO) refers to the societal expectations imposed on corporate and commercial activities, often displayed by the willingness for corporations to go beyond the requirements of formal regulations. Alternatively, this paper investigates the emerging influence of the SLO in shaping government decisions regarding the use and impact of the marine environment and its resources. Using expert interviews, text analysis and case study analysis, this research delineated the contemporary SLO as it has manifested in Australian marine governance, with the results indicating that this is potentially occurring at a pace faster than can be systematically reacted to within the current political decision-making processes. Under these emerging conditions, the risk has been identified that traditional government decision-making and stakeholder consultation processes are lagging in their capacity to adapt to ensure that public policy processes can support and engage in this shifting dialogue and ensure the influence of information is appropriately weighted. This research highlights an emerging adjustment of community presence in marine governance and the immediate complexities and challenges this creates for government decision-making. In particular, it begins to explore the interaction of differing information, how this information is carried through communication channels, stakeholder behaviour, approaches to withholding or granting a SLO and the responsibility this carries.  相似文献   

6.
《Ocean & Coastal Management》2006,49(9-10):640-648
Since the 1992 United Nations Conference on Environment and Development, considerable movement has been made by international organizations engaged in ocean affairs towards adopting ecosystem-based assessment and management practices. A decade later, at the World Summit on Sustainable Development (WSSD), another significant milestone was reached with the support, by over 100 countries, for a Plan of Implementation that agreed on several specific ecosystem-related targets including: achievement of “substantial” reductions in land-based sources of pollution by 2006; introduction of the ecosystems approach to marine resource assessment and management by 2010; designation of a network of marine protected areas by 2012; and the maintenance and restoration of fish stocks to maximum sustainable yield levels by 2015. An international financial mechanism, the Global Environment Facility (GEF), is assisting developing countries in meeting the WSSD targets by supporting Large Marine Ecosystem (LME) assessment and management projects. Of the 29 LMEs for which published case study information is available on analyses of principal forces driving changes in biomass yields, fishing effort was the primary forcing mechanism in 14 LMEs, climate forcing was the principal factor in 13 LMEs, eutrophication in one case and the data were inconclusive in another. Fishing effort was a secondary driver of change in biomass yields in the 13 LMEs driven by climate forcing. Mitigating actions for reducing fishing effort to promote recovery of lost biomass yield is proving successful in one case study. Actions for improving forecasts of oceanographic conditions affecting fish stocks are underway in four GEF-supported LME projects (e.g., Humboldt Current, Canary Current, Guinea Current and Benguela Current); measures to assess and manage excessive fishing effort are planned for eight LME projects, eutrophication reduction and control in another; and six LMEs with relatively stable decadal biomass yields appear suitable for mandating precautionary total allowable catch levels. The GEF/LME projects include countries that contributed to 45% of global marine biomass yields in 1999.  相似文献   

7.
The main goals of the Gulf of Mexico Ecosystem Service Valuation Database (GecoServ), an inventory of ecosystem services (ES) valuation studies applicable to the Gulf of Mexico, are to allow for the distribution and sharing of information about said studies and to identify current gaps in the ES valuation literature.The utility of GecoServ (http://www.gecoserv.org) lies in that it fills a void left by non-ES specific environmental databases, highlights the lack of studies for some ecosystems and associated services, and provides background information for future ES valuation studies.GecoServ functions as a uniquely centralized source of information for both researchers and natural resource managers. Researchers can find information for different study sites to be used in value transfer methods. For managers, instead, GecoServ is a tool that provides them with ES values to inform their decision-making process.  相似文献   

8.
The nature of participation by fishing organizations in fisheries management in the Northeast US is changing. Evidence of this is the number of groups that are actively seeking opportunities for group governance of marine resources. This article explores emerging collaborative or co-management arrangements in this region (a process whereby decision-making is shared between federal/council level and fishery stakeholder groups) and the shift towards an ecosystem-based approach to the management of marine fisheries.This research suggests that it is an opportune time for the development of a regional policy in the Northeast that provides an enabling environment in support of decentralized governance of federally managed marine fisheries. It also suggests that these initiatives can play a key role in operationalizing ecosystem-based management.  相似文献   

9.
Increasing numbers of people are living in and using coastal areas. Combined with the presence of pervasive coastal threats, such as flooding and erosion, this is having widespread impacts on coastal populations, infrastructure and ecosystems. For the right adaptive strategies to be adopted, and planning decisions to be made, rigorous evaluation of the available options is required. This evaluation hinges on the availability and use of suitable datasets. For knowledge to be derived from coastal datasets, such data needs to be combined and analysed in an effective manner. This paper reviews a wide range of literature relating to data-driven approaches to coastal risk evaluation, revealing how limitations have been imposed on many of these methods, due to restrictions in computing power and access to data. The rapidly emerging field of ‘Big Data’ can help overcome many of these hurdles. ‘Big Data’ involves powerful computer infrastructures, enabling storage, processing and real-time analysis of large volumes and varieties of data, in a fast and reliable manner. Through consideration of examples of how ‘Big Data’ technologies are being applied to fields related to coastal risk, it becomes apparent that geospatial Big Data solutions hold clear potential to improve the process of risk based decision making on the coast. ‘Big Data’ does not provide a stand-alone solution to the issues and gaps outlined in this paper, yet these technological methods hold the potential to optimise data-driven approaches, enabling robust risk profiles to be generated for coastal regions.  相似文献   

10.
Mussel farming is the largest aquaculture activity in Spain both in volume and value, being a key pillar for the development of the coastal areas in Galicia (NW Spain), where this production is concentrated. The available scientific knowledge suggests that in the long term the primary productivity of the Galician estuaries will be reduced due to climate change. Consequently, adaptive management will be required to face this challenge. The impact of the likely production decrease will depend, among other factors, on the availability of substitutes, being their identification the main object of this research. So, it was analysed whether this markets are integrated or not through cointegration tests, finding that only the French and the Spanish markets are partially integrated. This implies that since very little substitutes are available for the Galician fresh mussels, decreases in production will not necessarily affect producer's income, as prices increases will compensate the (eventual) reduction in volume. In terms of policy, this study suggests that market intelligence may contribute to an adaptive, pragmatic and flexible framework to face climate change impacts, avoiding too anticipated or blind responses that may result in economic, environmental and social costs.  相似文献   

11.
Community supported fishery (CSF) programs are emerging as appealing alternatives to large-scale industrial fisheries for some seafood consumers and commercial fishers. While CSFs provide many social, economic, and environmental benefits to their local communities, the associated financial costs can make it difficult for such programs to remain solvent. The goal of this research was to identify specific features that influence the financial performance of CSF programs. Using data collected online and from surveys of past and current North American CSFs, this research identified a combination of three key features associated with positive profit margins: engaging in social media, offering a retail option, and having a fisher as a founding member. The potential reasons behind the influence of these features on financial performance is explored, and recommendations for how they can be incorporated into CSF programs are presented. It is hoped that through integrating these features, prospective and currently operating CSFs could potentially improve their long-term financial performance, enabling them to focus on their non-financial goals and increase their overall economic viability.  相似文献   

12.
This paper argues the need for consideration of both animal welfare and conservation when making management decisions regarding human activities that affect marine mammals. Population level effects may take a long time to be determined, whereas animal welfare metrics can be observed in the short term, enabling problems to be addressed more rapidly. In addition, implementing current legislation in many countries related to the management of impacts on marine mammals requires animal welfare to be taken into account. Such legislation reflects societal values and public concern for individual animals. Two case studies are discussed. These are: management measures related to incidental killing in commercial fisheries, and injury or disturbance from intense sources of underwater noise from seismic surveys. Both of these threats have welfare and conservation implications for marine mammals. An increased focus on welfare would better reflect societal values including requirements under various legal regimes and could also enable more targeted and effective conservation actions.  相似文献   

13.
A new database of ocean wave parameters has been created based on satellite altimetry observations. The basis was data from the European Space Agency project GlobWave (www.globwave.org), which was transformed to suit upcoming requirements for global wave analysis. The new database contains additional wave characteristics (altimetry wind speed estimated using different parametric models, steepness, period, and some quality control parameters). It provides up-to-date tools for mass data preprocessing. The new database makes it possible to optimize wave field diagnostics on regional and global scales. Using the Envisat and Jason-1 satellite missions as an the example, we demonstrate the specific features of using the initial GlobalWave data set and the modified database.  相似文献   

14.
《Ocean & Coastal Management》2006,49(7-8):498-510
This paper reviews the historic approach to coastal management and the reasons behind the introduction of the littoral ‘sediment cell’ concept to shoreline management planning in England and Wales. It then reviews the strengths and limitations of the approach and makes practical recommendations on how the approach can be further improved to ensure that a robust methodology exists for assessing coastal evolution; thereby providing a foundation for enabling sustainable future management decisions. Such decisions can relate to both the selection of shoreline management practices, and the identification of appropriate land use planning and development control responses. Both of these items need to take account of natural coastal processes and the interactions that occur within coastal systems at various temporal and spatial scales.  相似文献   

15.
The European common fisheries policy (CFP) advocates measures to sustain small-scale fisheries; hence, in the European Commission's proposal for a reformed CFP, these are exempted from a mandatory system with tradable fishing concessions. This opens up for management actions designed for small-scale fisheries, but also implies new management issues. This article provides insights into the topic based on a Swedish small-scale herring fishery in the western Baltic Sea that was exempted from an ITQ-system. The fishery has been profitable since the system was introduced, and the increasing effort of both incumbent fishermen and new entrants implies a situation where fishermen compete for a limited quota. The migratory pattern of the herring implies high densities in the southern parts of the fishing areas during spring and in the northern parts during autumn. This forms the basis for two different fisheries in the area, as well as for the current management proposal to divide the quota into a spring and an autumn part. This and other management proposals are discussed in the paper. The main conclusion from the case study is that, when exempting a fishery from tradable fishing concessions, it is important to build other institutions dealing with the fundamental problem of access to the quota. Failure to do so might result in an over-capacity issue and threaten the long-run development of an otherwise successful small-scale fishery.  相似文献   

16.
《Ocean & Coastal Management》2006,49(7-8):385-412
The Guinea Current Large Marine Ecosystem (GCLME) extending from Bissagos Island (Guinea Bissau) in the north to Cabinda (Angola) in the south defines the shared transboundary waters off the coast of western Africa, which embodies some of the major coastal upwelling sub-ecosystems of the world and is an important centre of marine biodiversity and marine food production. The GCLME is characterized by distinctive bathymetry, hydrography, chemistry, and trophodynamics and represents the number 28 Large Marine Ecosystem (LME) ranked among the most productive coastal and offshore waters in the world with rich fishery resources. However, over-exploitation of fisheries, pollution from domestic and industry sources, habitat destruction and poorly planned and managed coastal developments and near-shore activities are resulting in a rapid depletion of the rich fisheries resources and degradation of vulnerable coastal and offshore habitats putting the economies, productivity and health of the populace at risk. Recognizing the urgency of the fisheries decline and the environmental and socio-economic consequences for the region, the 16 countries bordering the ecosystem have mobilized complementary resources to the funding from the Global Environment Facility and United Nations Industrial Development Organization to implement priority management actions agreed in the preliminary Strategic Action Programme for the recovery of depleted fish stocks and restoration of degraded habitats for the advancement of the achievement of the World Summit on Sustainable Development (WSSD) Johannesburg Plan of Implementation targets for recovery of fish stocks.  相似文献   

17.
Fish farming has been a recurring topic of debate, not the least in the news media. The media is an important source of information about the aquaculture industry and its products to the public. However, the media is also an important debate arena, enabling representatives of the public, stakeholders, authorities, and the industry to engage in discussions as well as to influence policy and regulations. This paper focuses on the continuous debates in news media, the topics and storylines discussed, the various actors participating, and their arguments. Through a study of the content, positions, and producers of debate contributions in nine Norwegian newspapers, this paper sheds light on the public debate on aquaculture and the present controversies. Drawing on discourse theory, it is argued that the concept of discursive conflicts offers important insights into the controversies surrounding aquaculture. Discourse coalitions unite seemingly dissimilar and independent actors, and shared story lines provide political momentum, reduce complexity and reify the debate. However, such coalitions also contribute to maintaining the debate in a deadlock.  相似文献   

18.
Globalisation is enabling an increasing number of stakeholders to become better informed and more determined to participate in the management of both coastal and high-seas fisheries. Centralised fisheries management agencies are therefore becoming increasingly unable to exert control over the flow of information in fisheries management processes, and less able to exclude other formal and informal institutions from influencing management processes. This work details the emergence of network governance processes and concludes that network governance is likely to erode the traditional command and control authority of many formal government-mandated agencies, and potentially increase the transaction costs in fisheries management processes. However, this style of emergent management may also increase the robustness of management decisions.  相似文献   

19.
Substantial economic opportunities have been identified in many Australian fisheries but may remain unimplemented due to the perception that the role of government is to ensure harvests are biologically sustainable, while economic decisions should be left to the commercial industry. This paper explores the role of government in driving changes that increase revenue and profit from fisheries (termed economic benefit). Australian fisheries resources are managed by eight different jurisdictions. While each have separate legislation, there is invariably a responsibility to manage on behalf of, and to the benefit of the public, who are the owners of the resource. This paper uses case studies to explore how government can struggle to determine the public interest, separate this from private interests and then implement management changes to ensure the public utility is maximised. Common problems were: (i) overarching economic objectives, which define who should benefit, were often ambiguous and open to interpretation; (ii) the public interest was usually abstract and often under-represented in decision-making processes, (in contrast to industry, who have direct representation); (iii) special interest groups were often able to lobby against changes; and (iv) government was often reluctant to seize opportunities to increase economic benefit when there was significant industry opposition to management changes. In drawing attention to these challenges and how they have been overcome historically, it is argued that government has both a role and requirement under their legislative objectives to take the lead in implementing measures that increase the economic benefit from Australian fisheries.  相似文献   

20.
The article provides a theoretical approach to the issue of how fishers make decisions concerning compliant vs. non-compliant behaviour. Furthermore, the question of the extent to which such judgements can be influenced by the efforts of management authorities, is addressed. While the concept of compliance per se is rather seldom treated in the social science debate on resource management, it nevertheless lies at the heart of much of this literature. On the basis of major traditions in the debate, a model of fisher compliance is elaborated, emphasising coercive and discursive measures as two main mechanisms to be used by public authorities to induce compliance in individuals.  相似文献   

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