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Gotowe bibliografie tematyczne / Fishery management

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Gotowa bibliografia na temat „Fishery management”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 29 lipca 2024

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Artykuły w czasopismach na temat "Fishery management"

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SHEPHERD, S. A., P. MARTINEZ, M. V. TORAL-GRANDA i G. J. EDGAR. "The Galápagos sea cucumber fishery: management improves as stocks decline". Environmental Conservation 31, nr 2 (czerwiec 2004): 102–10. http://dx.doi.org/10.1017/s0376892903001188.

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The Galápagos Islands, a world heritage region for the protection of the unique terrestrial and marine wildlife, are also home to a small human population, dependent on fisheries. There was a lucrative sea-cucumber (Stichopus fuscus) fishery in the islands, which began in 1992. After a rapid expansion in the Galápagos archipelago, the fishery has declined and now persists predominantly around the western islands. Initially, the fishery was largely illegal and uncontrollable. Subsequently, a co-management framework developed, with fisher participation. Gradually enforcement improved, apparent corruption declined, and research capacity increased. Although stock abundance surveys have been carried out annually since 1993, the paucity of background biological and fishery information does not allow rigorous stock assessment. The achievements of co-management through the participation of fishers in research and management have been: an acceptance of management controls on numbers of fishers and quotas, a reduction in conflict and increased co-operation. Persistent problems have been: weak enforcement capacity, limited funds for patrolling and research, corruption and declining stock abundance. Proposed application of precautionary principles to management, including a range of fishery indicators, may save the fishery from collapse. The principles are applicable to many other data-poor fisheries globally.

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Stephenson, Robert L., Stacey Paul, Martin A. Pastoors, Marloes Kraan, Petter Holm, Melanie Wiber, Steven Mackinson, Dorothy J. Dankel, Kate Brooks i Ashleen Benson. "Integrating fishers’ knowledge research in science and management". ICES Journal of Marine Science 73, nr 6 (16.03.2016): 1459–65. http://dx.doi.org/10.1093/icesjms/fsw025.

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Abstract Fishers' knowledge research (FKR) aims to enhance the use of experiential knowledge of fish harvesters in fisheries research, assessment, and management. Fishery participants are able to provide unique knowledge, and that knowledge forms an important part of “best available information” for fisheries science and management. Fishers' knowledge includes, but is much greater than, basic biological fishery information. It includes ecological, economic, social, and institutional knowledge, as well as experience and critical analysis of experiential knowledge. We suggest that FKR, which may in the past have been defined quite narrowly, be defined more broadly to include both fishery observations and fishers “experiential knowledge” provided across a spectrum of arrangements of fisher participation. FKR is part of the new and different information required in evolving “ecosystem-based” and “integrated” management approaches. FKR is a necessary element in the integration of ecological, economic, social, and institutional considerations of future management. Fishers' knowledge may be added to traditional assessment with appropriate analysis and explicit recognition of the intended use of the information, but fishers' knowledge is best implemented in a participatory process designed to receive and use it. Co-generation of knowledge in appropriately designed processes facilitates development and use of fishers' knowledge and facilitates the participation of fishers in assessment and management, and is suggested as best practice in improved fisheries governance.

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Emery, Timothy J., John Tisdell, Bridget S. Green, Klaas Hartmann, Caleb Gardner i Rafael León. "Experimental analysis of the use of fishery closures and cooperatives to reduce economic rent dissipation caused by assignment problems". ICES Journal of Marine Science 72, nr 9 (18.08.2015): 2650–62. http://dx.doi.org/10.1093/icesjms/fsv148.

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Abstract Assignment problems in quota-managed fisheries are caused by spatial and temporal heterogeneity in the productivity of the stock. If the quota management system is not fully delineated (e.g. harvest rights assigned to particular areas) then fishers will compete with each other and overexploit parts of the fishery where or when the quota unit value is highest (i.e. fishing costs low and/or market price high), leading to economic rent dissipation. This study used experimental economics to assess the effectiveness of fishery temporal closures and income-sharing fishery cooperatives in resolving assignment problems across three different fisheries with varying levels of fisher heterogeneity (i.e. numbers of quota owners and lease quota fishers). While most fisheries were successful in reducing economic rent dissipation under the fishery closure management structure relative to their baseline(s), fisheries characterized by a greater number of lease quota fishers were less effective. This was due to the differential values that lease quota fishers place on the resource relative to quota owners, due to having insecurity of tenure and diminished wealth in having to bid for a quota package and pay for it using their revenue from fishing. Conversely, income-sharing fishery cooperatives were equally successful across all three fisheries in reducing assignment problems relative to their baseline(s). This was because income-sharing created an incentive to coordinate fishing effort, particularly among heterogeneous groups. While requiring further exposition in the field, these experimental results represent a first step in identifying management institutions that may assist fishers under quota management to resolve assignment problems in a dynamic environment.

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Obregón, Clara, James R. Tweedley, Neil R. Loneragan i Michael Hughes. "Different but not opposed: perceptions between fishing sectors on the status and management of a crab fishery". ICES Journal of Marine Science 77, nr 6 (5.12.2019): 2354–68. http://dx.doi.org/10.1093/icesjms/fsz225.

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Abstract Fisher perceptions are a useful source of information that allows changes in stocks to be detected quickly and indicate the social acceptability of different management regulations. Yet traditionally, such information is rarely employed when developing management approaches. Face-to-face interviews were used to elicit recreational and commercial fishers’ perceptions of a crab (Portunus armatus) fishery in three south-western Australian estuaries. Differences in the perceived changes in the average size of crabs and fishing effort, reported concerns and supported solutions were detected among the recreational fishers utilizing the three estuaries and between recreational and commercial fishers in the Peel-Harvey Estuary. However, some common views were expressed by recreational and commercial fishers, with both sectors stating concerns over recreational fisher compliance and increased fishing and environmental pressures. While both sectors believed that reducing fishing and increasing compliance would benefit crab stocks, the mechanisms for achieving this differed. Recreational fishers favoured increasing the length of the seasonal closure, while commercial fishers favoured the introduction of a recreational shore-based fishing licence. These findings suggest that sector- and estuary-specific management rules may better facilitate the amelioration of pressures affecting individual estuaries and could contribute towards a more socially and biologically sustainable fishery.

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Hobday, Alistair J., Jason R. Hartog, Claire M. Spillman i Oscar Alves. "Seasonal forecasting of tuna habitat for dynamic spatial management". Canadian Journal of Fisheries and Aquatic Sciences 68, nr 5 (maj 2011): 898–911. http://dx.doi.org/10.1139/f2011-031.

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Capture of the target, bycatch, and protected species in fisheries is often regulated through spatial measures that partition fishing effort, including areal closures. In eastern Australian waters, southern bluefin tuna (SBT, Thunnus maccoyii ) are a quota-limited species in a multispecies longline fishery; minimizing capture by nonquota holders is an important management concern. A habitat preference model (conditioned with electronic tag data) coupled with ocean reanalysis data has been used since 2003 to generate real-time predicted maps of SBT distribution (nowcasts). These maps are used by fishery managers to restrict fisher access to areas with high predicted SBT distribution. Here we use the coupled ocean–atmosphere model, POAMA (predictive ocean atmosphere model for Australia), and a habitat model to forecast SBT distribution at lead times of up to 4 months. These forecasts are comparable with nowcasts derived from the operational system, and show skill in predicting SBT habitat boundaries out to lead-times of 3–4 months. For this fishery, seasonal forecasts can provide managers and fishers with valuable insights into future habitat distributions for the upcoming months, to better inform operational decisions.

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Sheridan, Peter F., i J. L. McHugh. "Fishery Management". Estuaries 9, nr 1 (marzec 1986): 81. http://dx.doi.org/10.2307/1352196.

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Holland, Daniel S. "Collective Rights–Based Fishery Management: A Path to Ecosystem-Based Fishery Management". Annual Review of Resource Economics 10, nr 1 (5.10.2018): 469–85. http://dx.doi.org/10.1146/annurev-resource-100517-023110.

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Fishery rents may be dissipated across margins not well defined or controlled by an individual transferable quota system. Collective rights–based fishery management (CRBFM), where catch rights are held by a group, can sometimes generate greater benefits and can also address external impacts of the fishery. I discuss potential failures of individual quotas and how these problems were addressed by CRBFM institutions. I then focus on the role of CRBFM in addressing environmental and social impacts external to the group of fishers, such as bycatch, habitat impacts, and spatial conflicts. The review suggests that CRBFM can effectively address both intrafishery and external impacts, provided there is sufficient incentive to do so, including maintaining access to preferred markets or the threat of further regulation. However, CRBFM can create moral hazard and adverse selection problems, and successful CRBFM institutions generally have homogeneous membership with well-aligned interests and/or formal contracts with monitoring and enforcement provisions.

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Shephard, Samuel, Paul Connolly, Nils-Roar Hareide i Emer Rogan. "Establishing stakeholder connections for management of the Irish orange roughy fishery". ICES Journal of Marine Science 64, nr 4 (19.12.2006): 841–45. http://dx.doi.org/10.1093/icesjms/fsl034.

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Abstract S. Shephard, P. Connolly, N.-R. Hareide, and E. Rogan. 2007. Establishing stakeholder connections for management of the Irish orange roughy fishery. – ICES Journal of Marine Science, 64: 841–845. In 2000, an Irish fishery for orange roughy commenced in ICES Subarea VII. Landings peaked at >5000 t in 2002, but the fishery was largely closed from January 2005 because of concern about unsustainable fishing and the negative effects on deepwater sharks and coral. A multidimensional project was initiated in 2003 to investigate the fishery system and to develop a management plan. The project emphasized the establishment of productive relationships with stakeholders, particularly fishers. We describe and evaluate the process by which such linkages were developed successfully. Informal discussion with fishers produced experiential knowledge that described fishery development and fishing strategies, and informed subsequent scientific data collection. Strengthening relationships permitted access to commercial fishing trips and cooperation in research. An atmosphere developed in which management options could be debated in both wheelhouse and boardroom. Eventually, a formal research/stock assessment survey took place in which fishers, agencies, and deepwater coral ecologists cooperated.

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Bernos, Thaïs A., Clodio Travouck, Naly Ramasinoro, Dylan J. Fraser i Barbara Mathevon. "What can be learned from fishers’ perceptions for fishery management planning? Case study insights from Sainte-Marie, Madagascar". PLOS ONE 16, nr 11 (15.11.2021): e0259792. http://dx.doi.org/10.1371/journal.pone.0259792.

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Local support is critical to the success and longevity of fishery management initiatives. Previous research suggests that how resource users perceive ecological changes, explain them, and cope with them, influences local support. The objectives of this study were two-fold. First, we collated local fishers’ knowledge to characterize the long-term socio-ecological dynamics of the small-scale fishery of Sainte-Marie Island, in Madagascar. Second, we empirically assessed the individual- and site-level factors influencing support for fishery restrictions. Our results indicate that fishers observed a decline in fish abundance and catch sizes, especially in nearshore areas; many also perceived a reduction in fish sizes and the local disappearance of species. To maintain their catches, most fishers adapted by fishing harder and further offshore. Accordingly, fishers identified increased fishing effort (number of fishers and gear evolution) as the main cause of fishery changes. Collectively, our results highlight that the transition from a subsistence to commercial fishery, and resulting changes in the relationship between people and the fisheries, was an underlying driver of fishery changes. Additionally, we found that gender, membership to local associations, coping mechanisms, and perceptions of ecological health, were all interlinked and significantly associated with conservation-oriented attitudes. Conservation-oriented attitudes, however, were not associated with fishers’ willingness to decrease fishing. In the short-term, area-based restrictions could contribute to building support for conservation. In the long-term, addressing the underlying causes of the decline will necessitate collaborations among the various groups involved to progressively build livelihood flexibility. Collectively, our study provides additional insights on the individual- and site-level factors influencing support for fishery restrictions. It also highlights the importance of dialoguing with fishers to ensure that fishery management plans are adapted to the local context.

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Nunoo, F. K. E. "Achieving sustainable fisheries management: A critical look at traditional fisheries management in the marine artisanal fisheries of Ghana, West Africa". Journal of Energy and Natural Resource Management 2, nr 1 (21.02.2018): 15–23. http://dx.doi.org/10.26796/jenrm.v2i0.40.

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Sustaining fishery resources is crucial to the survival and wealth of artisanal fishers in Ghana. The artisanal fisheries sector ofGhana provides food, employment, livelihood support and socio-economic benefits to the Ghanaian economy. Fishery resourcesof Ghana are under stress from population pressure, increasing demand of fish and fishery products and open-access regime.Formal fisheries management practices have not yielded the desired results. There is an increasing need for traditional fisheriespractices to be incorporated into formal fisheries management practices. The aim of this paper is to conduct an in-depth studyon traditional marine fisheries management systems in Ghana in order to provide information to enhance the management of theartisanal fisheries.Data was collected through document analysis (between May 2014 and January 2015), field observation andquestionnaire-based interview (between 26th and 30th of July 2014). Results show that the Chief Fisherman and CommunityBased Fisheries Management Committee are important structures in the fisheries management system of Ghana. The ChiefFisherman is the person that leads resolution of disputes and gives access to fishing in the communities. There are a number ofmeasures such as non-fishing days, ban on landing certain fish species during festival periods to prevent overfishing. Taboos andcultural practices such as performing of rituals to ‘sea gods’ and consulting of oracles during certain periods of the year help tomanage the fish stocks. With respect to the performance of the fishing communities, Elmina performed better with combinationof various traditional practices to prevent overfishing. Fishers in Elmina also had adequate knowledge of current fishing rulesand regulations than fishers in Adina, Chorkor and Dixcove. Fishers and fishing communities must be educated on the need toavoid unapproved fishing practices to help keep the fishery resources healthy for sustainable exploitation. Fishers should also beequipped with alternative livelihood jobs in order to reduce the pressure on the fishery resources. A national policy to integratetraditional management practices into formal fisheries management plans should be established.

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Rozprawy doktorskie na temat "Fishery management"

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Christel, Douglas William. "The utility of fishermen's cognition in near-shore fisheries management on the east end of Long Island". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 0.64 Mb., 253 p, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:1430751.

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Sodik, Dikdik Mohamad. "Combating illegal, unreported and unregulated fishing in Indonesian waters the need for fisheries legislative reform /". Access electronically, 2007. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20080905.114951/index.html.

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Steinsdottir, Matthildur. "A multicohort fishery management model : the case of the Icelandic cod fishery". Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305981.

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Costa, Albert Ray. "A bioeconomic analysis of fishery management". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA302948.

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Wakeford, Robert Charles. "Management of the Seychelles artisanal fishery". Thesis, Imperial College London, 2001. http://hdl.handle.net/10044/1/11294.

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Palma, Mary Ann. "Analysis of the adequacy of the Philippine legal, policy, and institutional framework to combat illegal, unreported, and unregulated fishing". Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20070320.121526/index.html.

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Yuen, Pui-sze. "Feasibility of total prohibition of fishing in marine protected areas of Hong Kong". Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43784598.

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Blundon, Joy. "Co-management and the Eastport lobster fishery". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ42352.pdf.

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Upton, Harold F. "The economic consequences of fish habitat conservation and management /". View online ; access limited to URI, 2004. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3135922.

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Shaw, Reena L. "Enforcement and compliance in the Northeast groundfish fishery : perceptions of procedural justice in fishery management, the effects of regulatory methods, and prospects for compliance /". View online ; access limited to URI, 2005. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3206256.

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Książki na temat "Fishery management"

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Intilli, Janice S. Fishery management. Hauppauge, N.Y: Nova Science Publisher's, 2011.

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Agarwal, S. C. Fishery management. New Delhi: Ashish Pub. House, 1990.

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Mid-Atlantic Fishery Management Council (U.S.), Atlantic States Marine Fisheries Commission., United States. National Marine Fisheries Service., New England Fishery Management Council. i South Atlantic Fishery Management Council (U.S.), red. Fishery management plan for the bluefish fishery. [Dover, Del: Mid-Atlantic Fishery Management Council?, 1989.

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Ross, Michael R. Fisheries conservation and management. Upper Saddle River, N.J: Prentice Hall, 1997.

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Boucher, David P. Magalloway River fishery management. Augusta, Me: Maine Dept. of Inland Fisheries and Wildlife, Division of Fisheries and Hatcheries, 2008.

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Wooster, Warren S., red. Fishery Science and Management. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4757-2004-4.

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Bonney, Forrest R. McIntire Pond fishery management. Augusta, Me: Me. Dept. of Inland Fisheries & Wildlife, Fisheries and Hatcheries Division, 2008.

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Plan, Muthuraja Wela Master, Wetland Conservation Project (Sri Lanka), Integrated Resources Management Programme in Wetlands., Sri Lanka. Central Environmental Authority., ARCADIS Euroconsult (Firm) i Sri Lanka. Ministry of Environment & Natural Resources., red. Pariticipatory fishery management planning. Battaramulla, Sri Lanka: Central Environmental Authority, 2004.

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Bonney, Forrest R. Rangeley Lake fishery management. Augusta, Me: Maine Dept. of Inland Fisheries & Wildlife, Fisheries and Hatcheries Division, 2006.

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Bonney, Forrest R. Kennebec River fishery management. Augusta, Me: Maine Dept. of Inland Fisheries & Wildlife, Fisheries and Hatcheries Division, 2004.

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Części książek na temat "Fishery management"

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Johnson, Brett M., i Michael D. Staggs. "The Fishery". W Food Web Management, 353–75. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-4410-3_17.

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Hendrix, Eligius M. T., Rene Haijema i Diana van Dijk. "Optimal Fishery Policies". W International Series in Operations Research & Management Science, 425–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-47766-4_16.

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Grønbæk, Lone, Marko Lindroos, Gordon Munro i Pedro Pintassilgo. "Other Fishery Game Approaches". W Game Theory and Fisheries Management, 129–45. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40112-2_7.

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Schnute, Jon. "A General Theory for Fishery Modeling". W Resource Management, 1–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-46562-8_1.

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Wooster, Warren S. "Biological Objectives of Fishery Management". W Lecture Notes on Coastal and Estuarine Studies, 1–4. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4757-2004-4_1.

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Larkin, Peter A., Warren S. Wooster i Marc L. Miller. "On Fishery Science and Management". W Lecture Notes on Coastal and Estuarine Studies, 287–94. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4757-2004-4_14.

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Wooster, Warren S. "Biological objectives of fishery management". W Fishery Science and Management: Objectives and Limitations, 1–4. Washington, D. C.: American Geophysical Union, 1988. http://dx.doi.org/10.1029/ln028p0001.

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Royce, William F. "Comments on Japanese fishery management". W Fishery Science and Management: Objectives and Limitations, 243–46. Washington, D. C.: American Geophysical Union, 1988. http://dx.doi.org/10.1029/ln028p0243.

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Wooster, Warren S., i Marc L. Miller. "On fishery science and management". W Fishery Science and Management: Objectives and Limitations, 289–94. Washington, D. C.: American Geophysical Union, 1988. http://dx.doi.org/10.1029/ln028p0289.

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D’Andrea, Ariella, Margaret Von Rotz, Solène Devez, Brandon D. Hupka, Mele Ikatonga Tauati i Siola’a Malimali. "Tonga: Enabling Coastal Communities to Protect Marine Resources and Secure the Livelihoods of Small-Scale Fishers". W MARE Publication Series, 429–50. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-56716-2_20.

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AbstractCoastal fisheries are the food basket of Pacific Islanders, and fishing is deeply rooted in Pacific Islands’ cultures and traditions. In Tonga, during the past century, marine resource management has been the sole responsibility of the government under the law. Although management measures aim to ensure the sustainability of small-scale fisheries, compliance is often a challenge. In 2002 and 2009, Tonga passed new fishery legislation that reformed access to marine resources for local fishers (particularly in lagoons and reef areas) with the introduction of its own community-based fishery management approach, known as the Special Management Area (SMA) program. The SMA program and supporting legislation allow coastal communities and local fishers, with assistance from the Ministry of Fisheries, to regulate adjacent marine areas through local fishery management plans that grant preferential access and assign stewardship duties to community members. Tonga has made a commitment to following the Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries in the Context of Food Security and Poverty Eradication (SSF Guidelines), with the SMA program representing an important step forward. This chapter explores the main venues and opportunities for Tonga to implement the SSF Guidelines while completing the SMA scaling-up process, in line with recent policy commitments made at a Pacific regional level, (In 2021, the members of the Pacific Community (SPC) adopted the Pacific Framework for Action on Scaling up Community-based Fisheries Management: 2021–2025.) to ultimately provide sustainable access for small-scale fishers to marine resources and markets (SDG 14b).

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Streszczenia konferencji na temat "Fishery management"

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Wada, M., M. Sano, K. Hatanaka i H. Taka. "Digital diary system for fishery and applications of fishery management". W OCEANS 2012. IEEE, 2012. http://dx.doi.org/10.1109/oceans.2012.6404939.

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"POMDPs for sustainable fishery management". W 23rd International Congress on Modelling and Simulation (MODSIM2019). Modelling and Simulation Society of Australia and New Zealand, 2019. http://dx.doi.org/10.36334/modsim.2019.g2.filar.

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Fujita, Rodney M. "Integrating Marine Reserves With Fishery Management". W California and the World Ocean 2002. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40761(175)48.

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Marchesseault, G. "Gear Technology Needs for Fishery Management". W OCEANS '87. IEEE, 1987. http://dx.doi.org/10.1109/oceans.1987.1160765.

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Yarkina, N. N. "Modern Forms Of Fishery Enterprise Management: Ecological Aspect". W Proceedings of the II International Scientific Conference GCPMED 2019 - "Global Challenges and Prospects of the Modern Economic Development". European Publisher, 2020. http://dx.doi.org/10.15405/epsbs.2020.03.14.

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Wang, Yan-Ling. "International fishery supply chain risk management and insurance". W 2010 IEEE International Conference on Management of Innovation & Technology. IEEE, 2010. http://dx.doi.org/10.1109/icmit.2010.5492903.

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Xiaoling, Li, i Yu Chengqing. "Research on Internet + Fishery Drop-shipping Model". W 2015 Conference on Informatization in Education, Management and Business (IEMB-15). Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/iemb-15.2015.18.

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Yanti, Dwi, Roger Tabalessy, Fanny Simatauw, Irwanto Irwanto i Inayah Inayah. "Fishery Management for Crab Resources Using an Ecosystem Approach". W Proceedings of the First International Conference on Economics, Business and Social Humanities, ICONEBS 2020, November 4-5, 2020, Madiun, Indonesia. EAI, 2021. http://dx.doi.org/10.4108/eai.4-11-2020.2304633.

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Mocanu, Mihaela. "Reporting in Agriculture, Forestry, and Fishery. The Case of Romania". W 1st International Conference on Business Management. Editorial Universitat Politècnica de València, 2015. http://dx.doi.org/10.4995/icbm.2015.1418.

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Taka, Hiroaki, Taishi Sasaki i Masaaki Wada. "Supporting system for fishery resource management utilizing convolutional neural network". W 2017 20th International Symposium on Wireless Personal Multimedia Communications (WPMC). IEEE, 2017. http://dx.doi.org/10.1109/wpmc.2017.8301853.

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Raporty organizacyjne na temat "Fishery management"

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Meyer, S. Angler's Guide to the Rockfishes of Alaska: Biology and Fishery Management. Alaska Sea Grant, University of Alaska Fairbanks, luty 2012. http://dx.doi.org/10.4027/agrabfm.2012.

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Hamon, K. G., F. F. Hoekstra, A. Klok, M. Kraan, S. van der Veer, B. Deetman, J. A. E. van Oostenbrugge i K. Taal. Decommissioning of the Dutch cutter sector : Impact analysis of management measures on the fishery. Wageningen: Wageningen Economic Research, 2023. http://dx.doi.org/10.18174/631351.

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Shaw, R. D. Cultural resources survey of the Togiak District Herring Fishery, management base camp, Summit Island, Alaska. Alaska Division of Geological & Geophysical Surveys, 1986. http://dx.doi.org/10.14509/1187.

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Lee, S., A. Lewis, R. Gillett, M. Fox, N. Tuqiri, Y. Sadovy, A. Batibasaga, W. Lalavanua i E. Lovell. Fiji Fishery Resource Profiles. Information for Management on 44 of the Most Important Species Groups. Wildlife Conservation Society, 2018. http://dx.doi.org/10.19121/2018.report.33899.

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Lee, S., A. Lewis, R. Gillett, M. Fox, N. Tuqiri, Y. Sadovy, A. Batibasaga, W. Lalavanua i E. Lovell. Fiji Fishery Resource Profiles. Information for Management on 44 of the Most Important Species Groups. Wildlife Conservation Society, 2018. http://dx.doi.org/10.19121/2018.report.38418.

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Hamon, K. G., E. Giesbers, F. F. Hoekstra, A. Klok, M. Kraan, S. van der Veer, X. Verschuur i B. Deetman. Decommissioning of Wadden Sea shrimp fishing licences : Impact analysis of management measures on the fishery. Wageningen: Wageningen Economic Research, 2023. http://dx.doi.org/10.18174/590257.

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Course, Grant, Guy Pasco, M. O'Brien i Julian Addison. Evidence gathering in support of sustainable Scottish inshore fisheries: work package (2) final report: monitoring fishery catch to assist scientific stock assessments in Scottish inshore fisheries – a pilot study, and work package (3) final report: identifying catch composition to improve Scottish inshore fisheries management using technology to enable self-reporting – a pilot study. Redaktorzy Mark James i Hannah Ladd-Jones. Marine Alliance for Science and Technology for Scotland (MASTS), 2015. http://dx.doi.org/10.15664/10023.24672.

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[Extract from Executive Summary] This report summarises the findings and presents the results from the two European Fisheries Fund (EFF) funded projects, Monitoring Fishery Catch to Assist Scientific Stock Assessments in Scottish Inshore Fisheries – a Pilot Study; and Identifying Catch Composition to Improve Scottish Inshore Fisheries Management using Technology to Enable Self-Reporting – a Pilot Study.

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van Gemert, Rob, Per Holliland, Konrad Karlsson, Niklas Sjöberg i Torbjörn Säterberg. Assessment of the eel stock in Sweden, spring 2024 : fifth post-evaluation of the Swedish eel management. Department of Aquatic Resources, Swedish University of Agricultural Sciences, 2024. http://dx.doi.org/10.54612/a.4iseib7eup.

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For decades, the population of the European eel has been in severe decline. In 2007, the European Union decided on a Regulation establishing measures for the recovery of the stock, which obliged Member States to implement a national Eel Management Plan by 2009. Sweden submitted its plan in 2008. According to the Regulation, Member States shall report regularly to the EU-Commission, on the implementation of their Eel Management Plans and the progress achieved in protection and restoration. The current report provides an assessment of the eel stock in Sweden as of spring 2024, intending to feed into the national reporting to the EU in August this year. This report updates and extends previous evaluation reports by Dekker (2012, 2015) and Dekker et al. (2018, 2021). In this report, the impacts on the stock - of fishing, restocking and mortality related to hydropower generation - are assessed. Other anthropogenic impacts (climate change, pollution, increased impacts of predators, spread of parasites, disruption of migration due to disorientation after transport, and so forth) probably have an impact on the stock too, but these factors are hardly quantifiable, and no management targets have been set. For that reason, and because most factors were not included in the EU Eel Regulation, these other factors are not included in this report. Our focus is on the quantification of silver eel biomass escaping from continental waters towards the ocean (current, current potential and pristine) and mortality risks endured by those eels during their whole lifetime. The assessment is broken down on a geographical basis, with different impacts dominating in different areas (west coast, inland waters, Baltic coast). In the last decade, a break in the downward trend in glass eel recruitment has been observed, with recruitment no longer declining consistently. Whether that relates to recent protective actions, or is due to other factors, is yet unclear. Nevertheless, recruitment levels remain at historically low levels. This report contributes to the required international assessment, but does not discuss the causing factors behind the recent recruitment trend and the overall status of the stock across Europe. For the different assessment areas, results summarise as follows: On the west coast, a commercial fyke net fishery on yellow eel was exploiting the stock, until this fishery was completely closed in spring 2012. A fishery-based assessment no longer being achievable, we present trends from research surveys (fyke nets). Insufficient information is currently available to assess the recovery of the stock in absolute terms. Obviously, current fishing mortality is zero (disregarding the currently unquantifiable effect of illegal fishing), but none of the other requested stock indicators (current, current potential and pristine biomass) can be presented. The formerly exploited size-classes of the stock show a recovery in abundance after the closure of the commercial fishery, and the smaller size classes show a break in their decline in line with the recent global trend of glass eel recruitment. In order to support the recovery of the stock, or to compensate for anthropogenic mortality in inland waters, young eel has been restocked on the Swedish west coast since 2010. Noting the quantity of restocking involved, the expected effect (ca. 50 t silver eel) is relatively small, and hard to verify – in comparison to the potential natural stock on the west coast (an order of 1000 t). However, for the currently depleted stock, the contribution will likely constitute a larger share of silver eel escapement. For inland waters, this report updates the 2021 assessment, with substantial changes in methodology being the use of a new natural recruitment model, and the full separation of Trap & Transport catches from the fisheries statistics. The assessment for the inland waters relies on a reconstruction of the stock from information on the youngest eels in our waters (natural recruits, assisted migration, restocking). Based on 78 years of data on natural recruitment into 22 rivers, a statistical model is applied which relates the number of immigrating young eel caught in traps to the location and size of each river, the distance from the trap to the river mouth, and the year in which those eels recruited to continental waters as a glass eel (year class). The further into the Baltic, the larger and less numerous recruits generally are. Distance upstream comes with less numerous recruits. Using the results from the above recruitment analysis, in combination with historical data on assisted migration (young eels transported upstream within a drainage area, across barriers) and restocking (young eels imported into a river system), we have a complete overview of how many young eels recruited to Swedish inland waters. From this, the production of fully grown silver eel is estimated for every lake and year separately, based on best estimates of growth and natural mortality rates. Subtracting the catch made by the fishery (as recorded) and down-sizing for the mortality incurred when passing hydropower stations (percentwise, as recorded or using a default percentage), an estimate of the biomass of silver eel escaping from each river towards the sea is derived. Results indicate, that since 1960, the production of silver eel in inland waters has declined from over 700 to below 300 tonnes per year (t/yr). The production of naturally recruited eels is still falling; following the increase in restocking since 2010, an increase in restocking-based production is expected to be starting right around now. Gradually, restocking has replaced natural recruitment (assisted and fully natural), now making up over 90 % of the inland stock. Fisheries have taken 20-30 % of the silver eel (since the mid-1980s), while the impact of hydropower has ranged from 25 % to 60 %, depending on the year. Escapement is estimated to have varied from 72 t in the late 1990s, to 175 t in the early 2000s. The biomass of current escapement (including eels of restocked origin) is approximately 15 % of the pristine level (incl. restocked), or almost 30 % of the current potential biomass (incl. restocked). This is below the 40 % biomass limit of the Eel Regulation, and anthropogenic mortality (70 % over the entire life span in continental waters) exceeds the limit implied in the Eel Regulation (60 % mortality, the complement of 40 % survival). Mortality being that high, Swedish inland waters currently do not contribute to the recovery of the stock. The temporal variation (in production, impacts and escapement) is partly the consequence of a differential spatial distribution of the restocking of eel over the years. The original natural (not assisted) recruits were far less impacted by hydropower, since they could not climb the hydropower dams when immigrating. Since 2010, inland restocking is increasingly concentrated to drainage areas falling to the Kattegat-Skagerrak, also including obstructed lakes (primarily Lake Vänern, and many smaller ones). Even though Trap & Transport of silver eel - from above barriers towards the sea - has contributed to reducing the hydropower impact, hydropower mortality remains the largest estimated contributor to silver eel mortality in inland waters. Without restocking, the biomass affected by fishery and/or hydropower would be only 5-10 % of the currently impacted biomass, but the stock abundance would reduce from 15 % to less than 3 % of the pristine biomass. In summary: the inland eel stock biomass is below the minimum target, anthropogenic impacts exceed the minimum limit that would allow recovery, and those impacts have been increasing. It is therefore recommended to reconsider the current action plans on inland waters, taking into account the results of the current, comprehensive assessment. For the Baltic coast, the 2021 assessment has been updated without major changes in methodology. Results indicate that the impact of the fishery continues to decline over the decades. The current impact of the Swedish silver eel fishery on the escapement of silver eel along the Baltic Sea coast is estimated at 0.3 %. However, this fishery is just one of the anthropogenic impacts (in other areas/countries) affecting the eel stock in the Baltic, including all types of impacts, on all life stages and all habitats anywhere in the Baltic. Integration with the assessments in other countries has not been achieved. Current estimates of the abundance of silver eel (biomass) indicates an order of several thousand tonnes, but those estimates are extremely uncertain, due to the low impact of the fishery (near-zero statistics). Moreover, these do not take into account the origin of those silver eels, from other countries. An integrated assessment for the whole Baltic will be required to ground-truth these estimates. This would also bring the eel assessments in line with the policy to regionalise stock assessments for other (commercial) fish species (see https://ec.europa.eu/oceans-and-fisheries/fisheries/rules/multiannual-plans_en). It is recommended to develop an integrated assessment for the entire Baltic Sea eel stock, and to coordinate protective measures with other range states.

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Conrad, Jon, Linda Nøstbakken, Steven Stone, Henrik Franklin i César Viteri. Fisheries Management in the Galapagos Marine Reserve: A Bioeconomic Perspective. Inter-American Development Bank, maj 2006. http://dx.doi.org/10.18235/0008751.

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Despite numerous efforts and a large investment by the Ecuadorian Government and the international community, fishery management in Galapagos remains highly conflictive and essentially ineffective. Levels of mistrust and lack of communication have eroded the governance mechanisms in place to resolve conflicts over competing uses in the Reserve. In an effort to provide new information and analytical content into the policy debate regarding fisheries management in the marine reserve, the authors of this paper developed this research utilizing an economic approach to regulating use of the primary commercial fisheries in Galapagos. In particular, the objective of this study is to determine the optimal harvest, escapement, and fishing effort for the small-scale fishing fleet of the Galapagos Marine Reserve (GMR). In this study, the focus of attention is the two most important fisheries: the sea cucumber (pepino de mar, or "pepino") and the spiny red lobster. The authors base their analysis on a stochastic discrete time bioeconomic model developed by Reed (1979).

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Fox, Clive J., L. Valcic i Andrea Veszelovszki. Evidence gathering in support of sustainable Scottish inshore fisheries: work package (4) final report: a pilot study to define the footprint and activities of Scottish inshore fisheries by identifying target fisheries, habitats and associated fish stocks. Redaktorzy Mark James i Hannah Ladd-Jones. Marine Alliance for Science and Technology for Scotland (MASTS), 2015. http://dx.doi.org/10.15664/10023.24673.

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[Extract from Executive Summary] This work was conducted under Work package 4 of the European Fisheries Funded program “Evidence Gathering in Support of Sustainable Scottish Inshore Fisheries”. The overall aim of the program was to work in partnership with Marine Scotland Fisheries Policy and with the Scottish Inshore Fisheries Groups to help develop inshore fisheries management. Specifically the program aims were to establish the location of fishing activities within inshore areas; to identify catch composition and associated fishery impacts; to define the environmental footprint and availability of stocks; to develop economic value within local fisheries and; to establish an information resource base to assist the development of inshore fisheries management provisions.

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