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1.
The shared Torres Strait rock lobster (Panulirus ornatus) fishery provides important income for commercial and traditional fishers in Australia and Papua New Guinea. The lobster stock is first fished in Torres Strait by divers from both countries and then becomes vulnerable to Australian prawn trawlers, followed by Papua New Guinea trawlers during its annual breeding migration. Lobster catch sharing arrangements are governed by the Torres Strait Treaty ratified in 1985, but the sequential trawling of breeding lobsters has been controlled by bilateral agreements. A trawl ban was implemented in 1984 in both countries to conserve the breeding stock, but some trawling has been conducted in the Gulf of Papua since then and there is renewed interest in Papua New Guinea to resume trawling. To evaluate the impact of trawling migratory breeding lobsters on the lobster fishery, a model that combines a cohort depletion model with a stock recruitment relationship was developed in this study. The model showed that when the fishery is fully or over‐exploited by the dive fishery, trawling breeding lobsters would reduce both the spawning stock and the total catch of the fishery. The reduction in catch would increase with increasing fishing mortality. If trawling occurred on the Papua New Guinea side only, a redistribution of catch between Australia and Papua New Guinea would result in a small gain in catch for Papua New Guinea at the expense of the Australian dive fishery. But when fishing mortality reaches a certain level, any trawling in any country will incur catch loss to both countries. For the long‐term sustainability and maximum production of the fishery, regulations should be implemented in both countries under a co‐management scheme of a shared fish stock. 相似文献
2.
《Marine Policy》2017
This article examines current neoliberal forces in the Torres Strait tropical rock lobster (TRL) fishery and their likely impacts on the lives of indigenous Islanders. It describes how neoliberal principles of market governance, commodification of natural resources, profit maximization, individualization and property rights are at odds with Islander rights, values, sense of place, and institutions of knowledge, tenure and practice. It argues that proposed fisheries measures based on neoliberal imperatives could cause important conflicts and create high social, political, and economic costs. The TRL fishery is integral to Islanders’ aspiration of self-determination and economic autonomy. A more holistic vision inclusive of Islander perspectives is necessary if management of the TRL fishery is to be truly socially and culturally appropriate. 相似文献
3.
Communicating climate change: Climate change risk perceptions and rock lobster fishers, Tasmania 总被引:2,自引:0,他引:2
Melissa Nursey-Bray G.T. PeclS. Frusher C. GardnerM. Haward A.J. HobdayS. Jennings A.E. PuntH. Revill I. van Putten 《Marine Policy》2012,36(3):753-759
World fisheries, already vulnerable, are under increasing pressure from the impacts of climate change. Using the Tasmanian rock lobster industry as a case study, we considered the efficacy of risk perception as a tool to inform how to communicate the science of climate change and suggestions for management in relation to development of adaptation strategies for fisheries. Fishers surveyed in this study operate in a fishery that is expected to undergo large changes as a consequence of climate change. Fishers also reported observations of similar large changes in the marine environment and lobster fishery consistent with climate change; yet most fishers surveyed expressed doubts about whether climate change was a real process. The important point for adaption of the industry to climate change is that fisher perceptions of risk tended to create barriers to acceptance of climate change as an issue. This means that there is a barrier to communication and awareness about climate change and thus a barrier to future action on the issue. Improving acceptance of climate change and thus ability to adapt will require the development of communications that are culturally appropriate and palatable to fishers. We argue that the application of social learning principles in communications about climate change may be one constructive way forward. 相似文献
4.
《Ocean & Coastal Management》2006,49(5-6):298-307
In 1999 the Marine and Marine Industries Council was established by the Tasmanian (Australia) State Government and in 2001 a Tasmanian Marine Protected Area Strategy was launched. The aims of this paper are to: investigate the views, perceptions and attitudes of commercial fishers towards this Strategy and to identify the key issues that influence fisher support or opposition to marine protected areas (MPAs). Fifty-one structured interviews with license supervisors of commercial abalone, rock lobster and scalefish fishers were conducted. Fishers stated that they would conditionally support MPAs if they sustained or increased fish populations, supported research, allowed fishing in multiple use areas, and if multiple use areas contained small ‘no-take’ zones. Fishers were concerned about the ability of the government to provide adequate marine protected area monitoring and compliance and were critical of the public consultation process that accompanied the development of the Strategy. Concern was expressed regarding the potential negative impact of additional MPAs in terms of resource sustainability and the long-term economic viability of the fishery. 相似文献
5.
Bernerd Fulanda Cosmas Munga Jun Ohtomi Melckzedeck Osore Robinson Mugo Md. Yeamin Hossain 《Ocean & Coastal Management》2009,52(9):459-466
The current study was carried out over a period of one year to characterise the coastal migrant fishery of Kenya. The study looked at gears and vessels used, and ownership, demographic factors including ages of the fishers and family sizes, migrant activity and resource conservation at two main fishing villages in Kenya; Vanga and Mayungu in the south and north coasts, straddling at 4.663°S and 39.215°E and 3.214°S and 40.135°E respectively. Further, the fishers were categorised with regard to fishing, gear and vessel operation and trade, and evolution upon entry into the fishery was also assessed in order to define fisher-stake in the fishery for resource management and conservation planning. Structured questionnaires were used to interview the fishers, and data and information recorded from 1018 fishers during the survey. Migrants accounted for over 63% of the fishers in the two study sites, with majority of the fishers lying in the 15–45 year age bracket. Dependence level averages at 4–6 person families per fisher. Entry to the fishery was mainly at seamen level, progressing to fishermen and finally to fish dealers (tajiris), with the latter holding >62% capital in the fishery. Resource management in the fishery was low and only 10% of the fishers were active participants in marine conservation and community beach management issues. Fisher migrations were mainly monsoon season-linked (>58%) although social factors such as family location determined to a great extent the expanse of the migrations. The revival of fisheries cooperatives and active participation in community resource management and conservation groups is envisaged as the key to the sustainability of both the marine resources and the economies associated with this high mobility, cross-border fishery. 相似文献
6.
《Marine Policy》2017
The fisheries management policy shift towards resource user participation in Malawi in the early 1990s resulted in mixed benefits among small-scale fishers, with many applauding the changes. This paper considers the impacts of these policy changes on government and within the fishing communities around Lake Chiuta whose fisheries co-management experience is considered successful. Benefits to the communities range from gaining government support in excluding non-local fishers using destructive fishing gear to increased household incomes and improved livelihoods, while benefits to government range from taking credit for establishing a sustainable fishery and co-management arrangements to reduced resource management costs. Community costs include financial resources and time spent by resource user representative organisations in enforcing fishing regulations. These findings enable a more balanced assessment of neoliberal claims about the benefits of delegating management responsibilities and downloading costs of management onto fishing communities and organisations. 相似文献
7.
《African Journal of Marine Science》2013,35(3):497-506
East coast rock lobsters Panulirus homarus are collected by the indigenous people of the Wild Coast, in the Eastern Cape, South Africa, and are sold to coastal hotels and holidaymakers. The South African government has proposed a small-scale commercial fishery based on P. homarus to improve socio-economic conditions in that region. Catch data and information on fishery operations were collected for the artisanal fishery from Coffee Bay, Presley Bay, Port St Johns and Mbotyi, as well as from a commercial buying station near the Mdumbi Estuary, between March 2003 and October 2005. The catch per unit effort of rock lobster poling varied from 13.5 ± 7.7 fisher–1 outing–1 at Port St Johns to 5.9 ± 3.1 fisher–1 outing–1 at Coffee Bay, but the number of fishers or fishing frequency could not be verified. About two-thirds of the lobsters caught (69%) were smaller than the minimum legal size. Hotels and the buying station complied with size limits, but cottages and campers often bought undersized lobsters. Smaller lobsters (females) are caught by poling than by diving. Geographical variations in poling effort and lobster mean sizes could be indicators of heavy fishing pressure on shallow, inshore reefs. The implications of commercialising the fishery and its associated management are discussed. 相似文献
8.
We estimate the unregulated catch and fisher income of the Kabui Bay migrant anchovy fishery operating in the Raja Ampat regency, Papua, Indonesia. Interviews with migrant fishers were conducted in April and November 2006, and estimates were generated through Monte Carlo simulations. Anchovy fisher income averaged US $1835 per year, about twice the average fisher income in the area. The income levels estimated by this study suggests that there is potential for the Raja Ampat Fisheries Bureau to capture some economic rent from the fishery to help fund a fisheries management program, from which Raja Ampat could benefit. 相似文献
9.
《Marine Policy》2013
There is a paucity of information on subsistence reef fisheries of indigenous communities in Torres Strait, Australia, and its role within their hybrid economy. Bus route surveys and semi-structured interviews were conducted in 2005 and 2006 on three islands in Torres Strait to understand whether subsistence fishing remains important for the livelihoods of Torres Strait communities and whether patterns of fishing effort are driven by changes in their socio-economic structure. Strong interactions among private (commercial fishing and other wage-employment), public (social security payments from the State) and subsistence sectors were observed. When social security payments were spent, Islanders were more reliant on subsistence fishing. Also, higher levels of involvement in the private sector corresponded with a shift from shore to boat-based subsistence activities. Socio-economic factors, such as involvement in commercial fishing and social security payments, were identified as the main driving factors of subsistence fishing activities. Findings of the present study stress the importance of considering socio-economic factors explicitly in future fisheries assessments and management decisions concerning the sustainability of resources in Torres Strait. 相似文献
10.
H. John Cranfield Glen Carbines Keith P. Michael Alistair Dunn Dean R. Stotter Darren J. Smith 《新西兰海洋与淡水研究杂志》2013,47(5):897-908
Epifaunal reefs in Foveaux Strait are oyster (Ostrea chilensis Philippi, 1845) habitat. One hundred and thirty years of oyster dredging has diminished the complexity and distribution of these reefs. Commercial densities of blue cod (Parapercis colias (Forster in Bloch and Schneider, 1801)) were discovered on epifaunal reef habitat in 1989 and became the focus of a major blue cod fishery. We document habitat changes that followed the closing of the oyster fishery in 1993 and interactions between the blue cod and oyster fisheries after the oyster fishery was reopened in 1996. Evidence from blue cod fishers and oyster surveys suggests that the benthic habitat of some oyster beds regenerated in the absence of dredging and that the relative density of blue cod, and then oysters, rebuilt to commercial levels. Benthic habitat was modified once more when oyster dredging restarted and the relative density of blue cod on oyster beds fell again. The observations suggest that rotational fishing of oysters could mitigate the effects of dredging on habitat and that marine protected areas could expedite habitat recovery. Increasing habitat complexity and blue cod density on a reef of oyster shells formed by an oyster fisher suggests that habitat enhancement might remedy effects of dredging. The questions raised by the observations could be answered by management experiments on the scale of the fisheries. 相似文献
11.
《Marine Policy》2013
In Piriápolis (Uruguay) and Paraty (Brazil), artisanal fishers view fishing as a way of life, rather than just a job. The freedom of fishing and an inherent satisfaction in the occupation figure large in fishers' attachment to it. There are strong indications, however, that the relationship of fishers to fishing is changing. First, while fishers from both areas wish to keep fishing in the future, they are moving into different occupations or supplementing their work in fishing with other employment. Second, artisanal fishers from Piriápolis and Paraty identified fishing as an undesirable occupation for their children because they believe that in the future fishing will no longer be a viable occupation. Nonetheless, despite the wishes of their parents, young men and women in Piriápolis and to a much lesser degree in Paraty continue to become involved in fishing and fishing-related activities. The paper uses a social wellbeing perspective to interpret fisher responses to the changing circumstances they face. Wellbeing is a lens to understand the distinctive features of artisanal fisheries and helps to understand fishers' disenchantment with fisheries governance processes, in a scenario where participation is being promoted by the state in Uruguay and Brazil. The implications of these findings for state efforts to promote fisher participation in governance are discussed. 相似文献
12.
In Florida, United States, the Caribbean spiny lobster, Panulirus argus, supports an important commercial fishery and also perhaps the most intensive recreational fishery of any lobster species, with sales of recreational lobster fishing permits exceeding 100 000 annually. For the past decade, we have used mail surveys of recreational lobster license holders to estimate spatially explicit landings and fishing effort when recreational fishers are most active—during the state's “Special Two‐Day Sport Season”, which takes place just before the opening of the commercial season, and during the first month of the regular recreational season, which coincides with the commercial season. From 1993 through 2002, fishing effort during the Special Two‐Day Sport Season has ranged from 60 000 to 112 000 person‐days, and landings have ranged from c. 112 to 255t. Both fishing effort and landings have varied without trend. Fishing effort during the regular season over the same period has ranged from 261 000 to 514 000 person‐days, and landings have ranged from 434 to 825 t. Fishing effort has shown a marginally statistically significant decreasing trend, the result of a progressive decrease in effort since 1999. The largest proportion of both fishing effort and landings was concentrated along the south‐east coast. Despite the recent decrease in landings, the proportion of total landings made by the recreational fishery has increased. From 1993 through 1998, the fishery was responsible for c. 30% of commercial landings; by 2001, that percentage increased to nearly 40%. Such a shift in landings away from the commercial trap fishery toward the recreational fishery was recognised as a potential but unintended effect of the ongoing management plan of restricting effort in the commercial trap fishery. Our 2001 surveys revealed that recreational lobster fishers spent more on a person‐day basis than the general visitor to the Florida Keys did, but less than those visitors using the region's coral reefs. Consequently, managers must establish management strategies that allow the coexistence of this resource's user groups and also incorporate the social and environmental concerns of nonuser groups. 相似文献
13.
Serge Raemaekers Maria HauckMarkus Bürgener Angus MackenzieGenevieve Maharaj Éva E. Plagányi Peter J. Britz 《Ocean & Coastal Management》2011,54(6):433-445
The rise of organised illegal fishing and trade in abalone from the late 1990s destabilised South Africa’s historically stable, quota-managed fishery, culminating in its closure in 2008. The development of the fishery is described in a historical context, including the evolution of South Africa’s science-based abalone fishery management system. The diverse suite of responses deployed to combat illegal fishing and the black market trade in abalone are reviewed, including;- fishery reform to expand rights to a greater number of previously disadvantaged fishers, a territorial user rights fishery (TURF) system, special compliance operations and courts, the CITES listing of abalone, and the serial reduction in the TAC, culminating in the controversial and legally contested closure of the fishery. The main causes of the rise of the illegal fishery are diagnosed as 1) the massive increase in the abalone price that occurred in the 1990s triggering an abalone fishing “gold-rush” and 2) the failure of the post-Apartheid fishery reform process to accommodate many traditional fishers in a legal fishing rights framework resulting in them operating outside the formal fishery management system. By contextualising the abalone fishery as a complex system, embedded in South Africa’s socio-political setting, we show how the resource focussed fishery management system did not have the capacity to incorporate the powerful social, political and economic drivers determining fisher behaviour. We conclude with the need to revisit South Africa’s abalone fishery management paradigm, and argue that a more integrated governance approach is required that takes into account the biological, socio-political and economic factors determining the fishery activities. 相似文献
14.
《Ocean & Coastal Management》2003,46(1-2):1-25
This project aimed to develop co-management of exploited marine fishery resources in Barbados using the sea urchin fishery as a test case. The approach was to work with stakeholders, primarily the fishers, to establish a co-management mechanism that could be operated by the fishers themselves with technical and advisory support from the Fisheries Division. The project used Technology of Participation (ToP) methodology, developed by the Institute of Cultural Affairs (ICA). ToP methods used included Focused Conversation and Participatory Strategic Planning. To our knowledge, this methodology has not previously been applied in small-scale fisheries co-management. Fishers involvement was developed in stages: identification of groups of fishers in communities and a contact person for the group; dialogue with individuals and the small groups; discussion in larger groups to derive approaches to management; and full group participation to reach consensus regarding the most appropriate approach to management. Key persons identified in communities helped organize meetings to discuss the sea urchin fishery. From these community meetings, individuals were selected to take part in the strategic planning. Two vision meetings with separate groups of fishers, produced similar results. These groups were combined at a planning meeting, where fishers examined the blocks to achieving the vision, developed strategies to overcome the blocks, and an action plan to implement the strategies. Fishers and government officials concluded that the methodology had successfully facilitated the input of both parties and produced a workable, consensual approach. 相似文献
15.
《Marine Policy》2016
Bangladesh's hilsa shad (Tenulosa ilisha) comprises the largest single-species fishery in the country, constituting 11 per cent of the total catch and employing 2.5 million people directly or indirectly. Since 2003, following a sharp decline in catch figures, the hilsa fish has been the subject of a government conservation programme offering fishers economic incentives or payments for ecosystem services (PES). While PES schemes are widely used to conserve natural resources such as forests and watersheds, Bangladesh's programme is a rare example of PES for sustainable fishery management. Catch figures have improved since the programme was introduced; but concerns remain about fishers’ socioeconomic conditions and the long-term sustainability of Bangladesh's hilsa fishery. This paper analyses the conservation scheme's legal and institutional frameworks, identifying challenges to its design and implementation, and makes recommendations to overcome them. 相似文献
16.
《Marine Policy》2016
Understanding vulnerability of different types of fishers to the implications of a Marine Protected Area (MPA) is crucial to its long-term sustainability. It helps direct management decisions of the MPA in a way that negative impacts on specific fishers can be mitigated. This study explored the vulnerability within specific groups of fishers, namely, commercial, subsistence and recreational fishers in the context of the largest MPA in the Maldives – the South Ari Atoll Marine Protected Area (SAMPA). SAMPA is subject to a future management plan that is likely to bring changes in how resources can be accessed in the area. In order to explore the vulnerability of the fisher groups, their sensitivity to this change was measured through an exploratory factor analysis and a sensitivity index. It was found that commercial fishers were likely to be the most vulnerable group as the management plan could potentially threaten their livelihood. Subsistence fishers were found to be next, as changes in access to SAMPA will potentially influence how they obtain their dietary protein. Recreational fishers were also found to vulnerable due to the nature of their fishing operation. However, relative to other groups, their vulnerability was likely to be much lower. To ensure strategic measures are designed to alleviate these potential vulnerabilities, this study proposed collaborative stakeholder participation throughout the development process of SAMPA's management plan, and also as a platform to build much needed confidence in MPAs among fishers in the Maldives. 相似文献
17.
《Marine Policy》2015
Balancing catch with annual catch entitlement (ACE) is crucial both for the financial viability of fishers and for the efficient operation of the New Zealand quota management system (QMS). This study examines the information channels that are used by fishers to search for ACE availability, and notes how these channels differ between large and small fishers. Special attention is given to the viability of small independent fishers whose participation in the fishery is dependent on their acquiring ACE in the open ACE market. An ACE market survey along with extensive consultation captured the views of fishers, fish processors, and quota brokers. These sources provide valuable insights into the day-to-day operation of the ACE market. They suggest that while elements of market power are evident in the ACE market there are also characteristics of an efficient market. 相似文献
18.
《Marine Policy》2017
An in-depth assessment was conducted on the functioning of a Taiwanese Sakuraebi (Sergia lucens) fishery management institution to understand the role of leadership in the context of long-term incentive creation. Interviews with relevant stakeholders and statistical analysis of fisheries data indicated that the daily vessel quota system and fishers’ collective efforts to influence the market resulted in increased sales value, while simultaneously allowing for the equitable distribution of benefits from the Sakuraebi fishery in Donggang, Taiwan. Local fishers expressed a high level of satisfaction with the corresponding activities initiated by the fisher's organization. Interview respondents felt that promotional marketing activities led by the organization to enhance domestic consumption were particularly effective, and statistical analysis suggests that these activities helped to reduce the dependency of Taiwanese Sakuraebi fishers on export markets. A notable characteristic of this fishery is that it combines a large-scale sales organization, which enables the exertion of market influence, with a small-sized subsidiary organization for fisheries management. An annually rotating leadership system for managing fishery operations also provides members with the opportunity to share a sense of participation and responsibility, while keeping long-term policy goals. This study reinforces previous findings that leadership, social cohesion, and the nature of the resource are key factors determining the effectiveness and success of fisheries management. 相似文献
19.
The southern rock lobster, Jasus edwardsii, is South Australia's most valuable fisheries resource, with an annual landed value of c. AU$100 million. Approximately 80% of this revenue comes from the southern zone (SZ) rock lobster fishery, which has been managed under an individual transferable quota system since 1993. The total allowable commercial catch is currently set at 1900 tonnes. Long‐term spatial trends in catch and effort were analysed over the period 1970–2005 to investigate possible changes in the spatial dynamics of the fleets as a result of quota introduction. Data indicate that the fishery contracted into three main Marine Fishing Areas (MFAs) after 1993. In particular, the long‐term catch average in MFA 51 decreased from 185.4 tonnes pre‐quota to 59.8 tonnes post quota. This MFA is located in the northern region of the SZ and is one of the furthest MFAs from the main fishing ports in the region. The fishery is also spatially contracted within MFAs. Approximately 80% of the annual catch comes from <60m depth despite catch rates being 2–3 times greater in offshore sites as evidenced from both fishery‐dependent and independent sources. Such trends appear driven by recent market preferences that select for small (<1 kg), red‐coloured lobster that are primarily located on inshore grounds. As a result, fishers now target inshore sites to maximise returns under the quota‐based system. The observed shift in the spatial dynamics of the SZ has clear implications for the biological performance indicators on which the fishery is managed. Specifically, the results highlight the need for a fishery‐independent assessment of the resource that provides estimates of catch rate and biomass independent of current harvest strategies. Preliminary results from a trial survey undertaken in 2005/06 and 2006/07 show higher lobster abundance in lowly exploited offshore sites compared with inshore areas. These trends highlight the need for refined spatial management of the resource, which is the focus of the new management plan for the fishery. 相似文献
20.
《Marine Policy》2005,29(5):385-390
There remain overlapping claims of jurisdiction by Canada and the US related to the 1984 Gulf of Maine boundary decision. The disputed territory, known as the grey zone, is a rich lobster fishing area and a simmering dispute between Canadian and US lobster fishers finally erupted here in August 2002. Jurisdictional and management issues remain unresolved. Stock conservation and associated socioeconomic impacts are concerns. 相似文献