Browsing Master's Thesis in Fisheries and Aquaculture Management and Economics by Issue Date
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- Browsing Master's Thesis in Fisheries and Aquaculture Management and Economics by Issue Date
Browsing Master's Thesis in Fisheries and Aquaculture Management and Economics by Issue Date
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Linh, Pham Thi Thuy (Master thesis; Mastergradsoppgave, May-2009)[+][-]
Abstract: This study is one of the first attempts to investigate the attendances and consequences of perceived risk toward consumption fish in Hanoi, Vietnam. The study applies theory of planed behavior and theory of perceived risk for its conceptual framework. The study has three objectives. The first objective is to investigate the consequences of risk on attitude and intention to consumption of fish in Hanoi. The second objective is to examine how knowledge, trust and risk propensity affect general risk. The last objective is to investigate how different dimensions of risk effects general risk. To achieve these objective, the study employs the test of reliability, factor analysis and structural equation modeling to analysis the data collected in Hanoi, the capital of Vietnam. This study’s findings indicate that the models fit well with the data. The perceived risk affected directly attitude and intention to consumption of fish. Knowledge, trust had significantly negative effect on general risk while risk propensity has positive effect on general risk. Finally, both financial risk, physical risk and social risk were highly effects general risk. The implications of the study are discussed. URI: http://hdl.handle.net/10037/1978 File(s) in this item: 1
thesis.pdf (391.3Kb) -
Hanh, Bui Le Thai (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: This research provides the first analysis of the relationship between farm financial exposure and technical efficiency in the Pangasius farming in An Giang province, in the Mekong Delta of Vietnam. A nonparametric DEA approach has been applied to estimate technical and scale efficiency scores of 61 Pangasius farms in An Giang province in the year 2008. The mean technical efficiencies under assumption of constant returns to scale and variable returns to scale and scale efficiency were measured to be 0.595, 1.058 and 0.58 respectively. The decomposition of the technical efficiency measure shows that scale inefficiency is the primary cause of technical inefficiency in the the case of Pangasius farming as about 92% of the sample Pangasius farms exhibits increasing returns to scale (IRS). Then, estimated technical efficiency (TE) scores under assumption of variable returns to scale are used in a regression analysis to investigate the relationship between the efficiency measures and different farm characteristics, including financial considerations. Research results suggest that technical efficiency is influenced by investment level of farms as well as by farm operator's experience. The farms are invested more will be more efficient. The experience measured as the years of operator in farming Pangasius also suggests that the farmers having more experience may have better decisions in farm operating and more efficient in using inputs, thus, their farms are more efficient. Technical efficiency is positively influenced by the debt-to-asset ratio and also by the debt-to-equity ratio, while no statistically significant relationship is found between technical efficiency and the bank debt-to asset ratio. The other factors (age and education levels of the houshlod head) are found to have no effects on the technical efficiency in the sample farms. URI: http://hdl.handle.net/10037/1982 File(s) in this item: 1
thesis.pdf (544.9Kb) -
Dien, Vo Van (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: Small-scale fisheries are one of the key sectors in Vietnam economy. This has been explained by its noticeable contribution to GDP, sizable share in the total export value in addition to the significant role in employment generation and food security. Contrary to the promising signs of sectorial performance, most of fishermen are considered the poorest of the poor and poverty is dominantly characteristic in small-scale fisheries. Poverty alleviation has emerged as an urgent requirement to sustain fishing communities. Characteristics and causes of poverty in small-scale fisheries should be therefore carefully investigated before any policy decisions are made. The thesis presents findings based on primary data collected through from 60 samples of households in Bich Dam Island in Nha Trang Bay, Vietnam. The empirical results show that 18% of fishermen households are living below the poverty line which is still above the provincial average. Living conditions of islanders’ communities are far below the minimal threshold in the critical shortage of electricity; clean water supply and basic amenities. Regression outcomes in poverty, represented by consumption per capita, analysis indicate that the size and structure of fishing households have considerable effects on poverty. Fishing boat owners have higher expenditures per head as compared with others. Introducing alternative jobs should be implicated in poverty alleviation policy in the island. URI: http://hdl.handle.net/10037/1984 File(s) in this item: 1
thesis.pdf (905.9Kb) -
Huy, Dang Hoang Xuan (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: This study has used minimizing input-oriented CRS DEA model with two output and five input variables which use theory of technical efficiency. It mainly has used Nha Trang‘s data (64 samples) to analysis, data from other areas in Khanh Hoa province (33 samples in Ninh Hoa district, 33 samples in Van Ninh district, and 36 samples in Cam Ranh district) only use to compare to Nha Trang to find the worst factors for technical efficiency, improving these factors in section conclusion. All these data was collected from data primary of Ph.D Pham Xuan Thuy when he did Ph.D thesis which he inquired in Khanh Hoa province in 2004. There are 25% performances of Black Tiger Prawn (Penaeus monodon) DMUo is efficient and 75% performances of DMUo are inefficient in Nha Trang city. We can put to conduct for each of the inefficient. These are the units that management would focus on to improve input factors or resource reduction. Camparing among Cam Ranh, Nha Trang city, Van Ninh district, Ninh Hoa district the proportion percent of Black Tiger Prawn (Penaeus monodon) DMUo technical efficient of Cam Ranh is 42% due to geographical advantage. The proportion percent of DMUo efficient of Nha Trang and Ninh Hoa is lowest because of nearly populated area and processing factories. URI: http://hdl.handle.net/10037/1981 File(s) in this item: 1
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Koralagama, Dilanthi Nadeeka (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: Vulnerability leads to poverty; poverty leads to vulnerability, a controversial two concepts without an end nor a start. From recent past, poverty has been addressed in terms of vulnerability. There, the possible ways to be vulnerable is stressed to investigate. Risks, shocks, and uncertainty have been identified as the profound sources of vulnerability so as to poverty. In fact, the study was designed to assess the coping mechanisms of vulnerability that are adapting to hammer the idiosyncratic risks and shocks in the small-scale fishing community in Southern Sri Lanka. Stratified random technique was applied to draw a sample of three groups representing, NMRT owners, FRP owners, and crew members. Totally 50 households were selected. Both panel data and a cross sectional survey was carried out to glean the data. The results highlight a clear variation of fishing income between season and off-season for the whole three groups. The FRP owners’, main cash inflows are fishing income, drawings, gifts, bank loans, and co-operatives irrespective of the season. Zero income, harsh sea condition, and inability to secure operational expenses knock their livelihoods frequently. Individuals are adapting memberships in formal organizations, accumulation of wealth, activity diversification, migration, and social networks as ex-ante risk coping strategies. Loans from friends, mortgage, withdrawals from banks, and intra- community transfers are the ex-post risk coping strategies. The safety net arrangements are vital to ensure the mutual insurance among the small–scale fishers. The importance of a high heterogeneity within a network is elaborated by the income- expenditure, and saving patterns of the groups. URI: http://hdl.handle.net/10037/1980 File(s) in this item: 1
thesis.pdf (1.025Mb) -
Luong, Nguyen Trong (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: A field study on the economic performance indicators for coastal fisheries are needed in order to implement fisheries policy in Khanh Hoa as well as in Vietnam. The research project “Economic performance indicators for coastal fisheries - the case of pure-seining in Khanh Hoa” established to fulfill these demands. A questionnaire about technical characteristics and economic data is used for data collection through interviews with vessel owners. This paper presents preliminary findings for 100 purse seiners, representing 10% of the total population, in Nha Trang and Cam Ranh (Khanh Hoa province) in the group of vessels with engine power of less than 90 HP. The following indicators are presented: gross revenue, gross value added, gross cash flow, net profit and crew share. The results show that the coastal purse seine fishery in Cam Ranh is more profitable than in Nha Trang for each engine power group. The owner of an average purse seiner of all groups of horse power in both locations of Nha Trang and Cam Ranh is not only capable paying for all expenses, but also has a reward for the operating year. The boat owner of an average vessel in the group of horse power of 75 -< 90 Hp has the highest values of annual gross cash flow and net profit following location. Thus, the annual average of crew shares for this group of horse power was quite high. It was almost 2.0 times more than the average earnings of labor in the whole country. The boat owners of the engine power group of < 20Hp and 20-<45Hp have lowest values of annual vessel gross cash flow and net profit following location. Thus, the annual average of crew shares for those groups of horse power is quite low. They are almost 1.2 times more than the average earnings of labor in the whole country. Regression analysis of gross revenue using technical characteristics as independent variables is performed, and the results are demonstrated. The technical factors that impact on the gross revenue are the length of net, fishing experience of skipper and location. These are significant factors impacting on the gross revenue. Further work will include collection of more data, which will be analyzed with stronger techniques for in depth analysis such as Data Envelopment Analysis (DEA) or Stochastic Production Frontier (SPF). URI: http://hdl.handle.net/10037/1977 File(s) in this item: 1
thesis.pdf (1.669Mb) -
Ly, Nguyen Thi Y (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: In Vietnam, marine cage lobster aquaculture has been expanding significantly over the last years. Besides the economic contribution for locals living in the coastal areas in Central of Vietnam, this industry has created some problems that are relating to the marine environmental protection where trash fish feed is predominant. This paper investigates the environmental impact on cage marine lobster aquaculture in Vietnam by using the Change of Productivity method in which nitrogen releasing from lobster cage is considered as the seawater quality parameter. And the usage of a mathematics function in this study is Mass Balance Model to calculate the total nitrogen loading volume in an every single crop in three provinces. This approach indicates the reverse relationship between lobster productivity (kg/m2) and volume of nitrogen releasing in a household unit. Additionally, the lobster productivity diminishes gradually if the number of cages increases in specific area. On the other hand, the estimation of the environmental effect uses the ‘Treatment Cost’ calculation for this waste has been done. However, this figure is lower than comparing that of the Change of Productivity method without considering the environmental carrying capacity. To give a strong recommendation to both local authorities, marine environmental management Departments and policy makers having a better consideration to the environmental and economic balance, the analysis of Cost – Benefit is presented in this study. This analysis shows that marine lobster aquaculture industry in Vietnam is profitable. However, because there is yet marine lobster food processing industry, the lack of awareness in environmental conservation from lobster farmers as well as the open-access sea in Vietnam that have been generating increasingly the marine water pollution. Therefore, in order to have a sustainability in cage marine lobster aquaculture development in Vietnam, it is vital for the local authorities and any other organizations to promote the development of high quality feed from food industry, to have technical training programs and raise up the awareness of the community in environmental protection as well as to plan strategic schemes to the entire region especially in the farming areas. Finally, setting up the environmental protection regulations to whose responsibility in a certain sea area is essential task to the government. URI: http://hdl.handle.net/10037/1976 File(s) in this item: 1
thesis.pdf (2.362Mb) -
Dien, Mai Van (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: The initial results of this study demonstrated that the offshore gillnets fleets in the Central of Vietnam can get high economic efficiency, an offshore gillnet vessel make a margin profit of 10%, the annual income of vessel can reach 51% of gross revenue. The average annual income of a fishing man is much higher than the average personal income on the national scale, corresponding to 156% in 2007. The offshore gillnet fishery could be attracted labour as well as investment in the future. The analysis has demonstrated that a gillnet vessel in the group of vessels with main engine power upper than 90hp has higher annual gross revenue, income, and net profit than the rest group. Impacts of engine power and hull length have also significant for vessel group with smaller 90hp engine power. For improving on economic performance, it is necessary to encourage owners of vessels in group smaller 90hp take more investment to improve vessel’s engine as well as hull length. For gillnet vessels in group of larger 90hp, the owners should not concentrate on engine power, the hull length need to be maximized correlative with the current engine capacity, the total gillnets length should be increased. The limitations of this study include a quite small sample because of the data collection is very difficult and costly in the current Vietnam’s conditions. The sample does not cover some important indicators such as the marine resources, the changing in market prices of inputs or outputs of the used models, and social-economic indicators (management ability, skipper and crew skills, education and average age of fishing men, and so on). Key words: offshore gillnet, economic performance, gross revenue, annual income URI: http://hdl.handle.net/10037/2000 File(s) in this item: 1
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Recalde Ruiz, Jose Renato (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: Three different types of culture and conditions were tested to determine the profitability of Rural and Artisanal Aquaculture Project in Ecuador: monoculture of the freshwater fish named locally cachama (Piaractus brachypomus), monoculture of red claw crayfish (Cherax quadricarinatus) and polyculture tilapia (Oreochromis sp.) – cachama (Piaractus brachypomus). The economic models used for this particular analysis were Net Present Value (NPV) and Internal Rate of Return (IRR). Using these methods in combination with a sensitivity analysis foresaw the feasibility on investment for the monoculture of red claw crayfish (Cherax quadricarinatus) showing a Net Present Value (NPV) of 11,458.80 USD, which was the highest among the trials, at 8.65% real interest rate and Internal Rate of Return 44%, followed by the monoculture of cachama (Piaractus brachypomus) with NPV of 10,130.82 USD at the same discount rate and IRR 35%, respectively. The third place in order of profitability goes for the polyculture tilapia (Oreochromis sp.) and cachama (Piaractus brachypomus) with NPV of 1,888.99 USD and 8.65% real interest rate. The IRR percentage registered on the last type of culture was 19%, being the lowest among the three types of production analyzed. Among the conditions tested in the sensitivity analysis, there were: the sudden increase in discount rate, 10% increase in costs, 10% decrease in benefits, simultaneous 10% increase in cost and 10% decrease in benefits, 10% increase in feed cost, 10% increase in price of fingerlings and larvae and reduction in survival rate to 73%, 50, 25.1% with 80% as optimal. On this sensitivity analysis, the monoculture of red claw crayfish (Cherax quadricarinatus) overcame most of the conditions tested being defeated by the reduction in survival rate in the order of 50 and 25.1% which NPVs turned out to be negative; -7,429.60 USD and -22,004.70 USD, respectively. On this case the IRR was indefinable. Nevertheless, still some speculations about certain conditions such as broad experience in the Aquaculture field and technological advantage might be serious factors to be considered at the moment to select this investment and they must be analyzed carefully. URI: http://hdl.handle.net/10037/1974 File(s) in this item: 1
thesis.pdf (830.8Kb) -
Yumei, Han (Master thesis; Mastergradsoppgave, 15-May-2009)[+][-]
Abstract: Guanxi, in China, is viewed as a cultural concept, which originates from Confucianism. This thesis applies a stakeholder-based view (SHV) of strategic management to a special Guanxi setting of China in order to contextualize the theory to be applied in Chinese settings. In exploring the experiences of developing Guanxi with critical stakeholders in the course of corporate operations within the three aquatic product enterprises in China, the result finds the role of catalyst of Guanxi in lubricating or smoothing corporate development based on SHV in strategic management. URI: http://hdl.handle.net/10037/2477 File(s) in this item: 1
thesis.pdf (518.5Kb) -
Lan, Duong Thi Kim (Master thesis; Mastergradsoppgave, 22-May-2009)[+][-]
Abstract: Attitudes of local people and managers have become the emerging topic in marine protected areas management. Understanding about it is expected to contribute to the implement and the compliance of fishermen and managers after seven years of the Nha Trang Bay marine protected are foundation. This study aims to evaluate attitudes and perceptions of fishermen and managers towards MPA management; and to examine life satisfaction of the fishermen resulting from the Nha Trang Bay MPA designation. The primary stakeholders take vital roles in complying with the management regulations, fishermen and managers were surveyed by random selection. Their opinions were obtained by the face-to-face interview. Results were presented underlying the descriptive analysis and the logistic regression model. Managers expressed positive attitudes and perceptions towards the MPA management; meanwhile fishermen did not. Fishermen reluctantly accept the closed area. The management board has not caught the support from local people, poaching and conflicts in using fisheries resources still occur in the area. The cumulative logistic model was used to examine the effects of demographic and socioeconomic factors on fishermen’s happiness. Per capita income and age have positive effects on the probability of fishermen life satisfaction. URI: http://hdl.handle.net/10037/1979 File(s) in this item: 1
thesis.pdf (538.1Kb) -
Wickramathilaka, Pushpakumara Sanath (Master thesis; Mastergradsoppgave, 24-May-2009)[+][-]
Abstract: Simply, Social capital is a concept that explains the extend and nature of relationships people have with (invest on) others – relatives, family friends, neighborers in own community members and members of other communities, or networks, relationships with various services, institutions and systems. As in the other types of investments, people expect returns on investments of social capital. Currently, the concept has received wider and growing attention on its role on household well-being which leads them to come out from poverty. Basically it is accepted that disseminate information, reduces opportunistic behavior (due to higher compliance to their group (social) or network), and facilitates collective decision-making. Trust and reciprocity play a bigger role in social relationships to visualize them as the mode of social capital. In Sri Lanka, poverty has been, probably the most burning issue of the country. Percentage of the population living below the national poverty line for the whole country is 15.2 percent (head count ratio). And population below US$ 2 a day (1990-2005) is 41.6 percent. Especially, Hambantota district is characterized by the relatively higher poverty of people. The percentage poor household in the district are considered as poor. By nature, most of the small scale fisherman in Sri Lanka are poor. Their monthly income fluctuates around the subsistent level. At idiosyncratic or co-variate shocks their status of living world temporally or permanently be changed; adverse in to poverty. In Hambantota district, especially in study locations, subsistent nature of living, serve resource exploitation due to unregulated access to the recourse base, use of destructive gears, exclusion from facilities and weaker community networks have mainly been identified as major barriers for way of poverty. Better assets ownership has been an effective solution for people to better deal with risks and uncertainties involved with fisheries. These assets are mainly the form of physical (land, house, Jewelleries, vehicles, Household equipment, and etc.) financial (savings), human (education, health), and social. This study focuses on how small scale fisheries in three fishing villages; namely Godawaya, Kalametiya and Rekawa of Hambantota district, invest on social capital and in what extent they enjoy the returns to come out from poverty. Basically the findings of the study, say that, in the case of small scale fisheries in areas, social capital have a positive increasing effect on household expenditure (welfare) in Kalametiya and Godawaya, richest people in the sense of social capital show higher household welfare level while in Rekawa poorest people in terms of social capital are the richest in their household welfare. This scenario, indicates that social capital helps people to come out from poverty. URI: http://hdl.handle.net/10037/1969 File(s) in this item: 1
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Xin, Zhou (Master thesis; Mastergradsoppgave, 25-May-2009)[+][-]
Abstract: Over the past decade, China has developed to be the fastest growth market of consumption of Norwegian Salmon in Asia. In addition, Beijing that is the capital of China with over 15 million populations provides great demand in seafood consumption. Understanding consumer’s attitude is the first step to explain the consumption. Meanwhile, some factors (e.g. norms, availability, and knowledge) have been confirmed to influence on the consumption. Therefore, the study applies the theory of planed behavior (TPB) model to explain the consumption of Norwegian Salmon in Beijing. Moreover, the TPB model, which includes four components of consumer’s attitude, subjective norms, perceived behavior control, and intention, has been successfully used in several contexts, including seafood consumption. URI: http://hdl.handle.net/10037/1968 File(s) in this item: 1
thesis.pdf (1.388Mb) -
Ahamed, A. F. M. Jalal (Master thesis; Mastergradsoppgave, 10-Jun-2009)[+][-]
Abstract: Fish is the main source of animal protein in Bangladesh. However, no previous studies I am aware of has analyzed or explored consumption and attitude toward fish in Bangladesh. In accordance with several studies in the area of food consumption behavior, this study use the Theory of Planed Behavior (TPB - Ajzen, 1991) a conceptual framework to explore the consumers attitude and consumption of fish in Dhaka city. Attitude, subjective norms, perceived behavioral control in the traditional theory is extended with perceived risk, trust and knowledge in order to explain intention and consumption of fish. The measures used to evaluate the constructs in the theories are adopted from previous studies. The study employs the methods of descriptive analysis, test of reliability and means difference, factor analysis, and multiple regression analysis to analyze the data collected in Dhaka city. The results show that fish as a meal is a common and broadly used food, and the people have high motivation and positive attitude toward consumption of fish. Perceived quality is revealed as the main determinant of consumers’ attitude, while availability is the main determinant of perceived behavioral control. Bones and smells of fish are not considered as unpleasant and not found as a significant indicator of attitudes. Time consumed to cook and prepare fish also did not found as a significant indicator of perceived control. It is also found people knew that fish are cultured in toxic environment and preserved with hazardous chemical, however the risk perception is less significant. This study found that people have much trust on food information from specialist like doctors and university scientist; but have low trust on Government and political parties. In the area of theory testing this study found attitude and norms are good predictors of intention, while intention and attitude have good predictability on consumption behavior. PBC did not find having effect on both intention and behavior. The cumulative variance explained by the data set is 73% for the constructs of TPB. In case of the extended model it is observed that intention, attitude, trust on information sources and product knowledge have significant effect on behavior, while attitude, norms and procedural knowledge is revealed as good predictor of intention. In the extended model it is also observed that there is no statistically significant relationship between risk, worry, trust on information sources, trust on sales outs with intention and behavior. However, while regressing intention with perceived risk (risk and worry) and trust (trust on information sources and on sales outlets) this study found statistically significant relationship. Key words: TPB, perceived risk, trust, knowledge, fish consumption, attitude, and intention URI: http://hdl.handle.net/10037/2472 File(s) in this item: 1
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Do, Hung Nguyen (Master thesis; Mastergradsoppgave, 12-Jun-2009)[+][-]
Abstract: Trao Reef Locally Managed Marine Reserve was established in 2001 to protect coral reef being under threat because of human activities. However, the economic value of coral reef represents an important sight to help local people and resource managers in using and managing the resource effectively in the marine reserve has not been seen. By using financial analysis to calculate producer surplus of resource users, this study evaluated the direct use value consisting of fishery and aquaculture values of coral reef in the marine reserve. The findings show that the direct use value of coral reef is US$ 207,819 in which aquaculture is an important contribution. This study also investigated the evaluation of effectiveness of the marine reserve management under the context of community based management approach by contrasting with Nha Trang Bay MPA management which follows top-down management approach. The results show that community in Trao Reef marine has higher awareness, higher compliance, and higher participation to the marine reserve management. These indicators imply that Trao Reef management is performing better than Nha Trang Bay MPA management. URI: http://hdl.handle.net/10037/1983 File(s) in this item: 1
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Xuan, Bui Bich (Master thesis; Mastergradsoppgave, 15-Jun-2009)[+][-]
Abstract: The purpose of this study was to examine the applicability of benefits sought – based segmentation for fish market in Vietnam. A convenient sample of 809 Vietnamese households was provided to answer the questionnaires, including the questions about attitudes towards fish consumption. Cluster analysis was used to identify three distinctive consumer segments based on evaluation of quality, ambivalence and health involvement towards fish consumption. These three segments were termed the Satisfied, the Ambivalent and the Neutral segments. While the Satisfied have positive attitudes and the Neutral have uncertain feelings towards fish consumption, the Ambivalent have mixed feelings towards fish eating behavior. The Ambivalent consumers reveal the attitudes and behavior towards fish products somewhere between the Satisfied and the Neutral segments on most variables. However, they are close to the “Satisfied” on most areas, e.g. perceived quality, health involvement, perception of fish convenience, social and moral norms. The quality and the smell of fish are found as the main variables contributing to determine the classification of the Satisfied segment. And the variable of “mixed emotions” is found as the most important to determine the classification of the Ambivalent segment. The practical implications for marketers within the fish industry are the effectively strategies to increase the satisfaction and the loyalty of the Satisfied and Neutral consumers. URI: http://hdl.handle.net/10037/1967 File(s) in this item: 1
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Chen, Xianwen (Master thesis; Mastergradsoppgave, 15-Sep-2009)[+][-]
Abstract: This thesis makes four contributions on the economic analysis of fisheries in cold-water corals contained waters. URI: http://hdl.handle.net/10037/2473 File(s) in this item: 1
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Nguyen, Thi Hoa Hong (Master thesis; Mastergradsoppgave, May-2010)[+][-]
Abstract: Humans are getting more dependent on marine and coastal resources. This has led to increased fishery exploitation and in many cases overexploitation with habitat degradation. This threatens coastal and marine resources all over the world. The current management approaches have failed to control fishing capacity and conflict in sharing fisheries resources due to population growth, poverty and a lack of awareness raising. The management and governance of small-scale fisheries is ready for worldwide reform. In recent years, Marine protected areas (MPAs) are becoming a popular tool for management and conservation of marine resources. Co-management is a recommendation as a solution of governance for marine protected areas. Co-management is a process that involves democratization and decentralization mechanisms through collaboration and power-sharing between resource users and government officials (Pomeroy and Rivera-Guieb, 2006) This paper highlights the co-management of an MPA in Trao Reef locally managed marine reserve, which was established in 2001 to protect and rehabilitate fisheries resources in general and the coral reef in particular. In addition, this paper demonstrates one way to approach co-management which include the transaction-costs, the method for measuring the transaction costs in fisheries co-management system. Transaction costs are defined as “the cost of transacting, which consists of the costs of measuring the valuable attributes of what is being exchanged and the costs of protecting rights and policing and enforcing agreements” (North 1990). The study is based on fisheries management, co-management, transaction-cost literature and secondary and primary data. The reduction of transaction-costs in the last stage of co-management regime is used to choose alternative institutional arrangements for managing a fishery for public policy decisions. This study is also the first paper to mention transaction-costs in fisheries co-management in Viet Nam. URI: http://hdl.handle.net/10037/2537 File(s) in this item: 1
thesis.pdf (791.8Kb) -
Nguyen, Thi Minh Huyen (Master thesis; Mastergradsoppgave, 16-May-2010)[+][-]
Abstract: The value of a coral reef is one of the ways to indicate the success of a Marine Protected Area (MPA) and protected resources. Khanh Hoa has two MPAs with the abundance coral reefs with status quite good and a developing fisheries industry. This paper will examine the link between fishery and coral reef using two models, essential fish habitat (EFH) model and facultative habitat (FH) model. The final goal is to estimate contribution of coral reef in a production function of fishery in Khanh Hoa. The empirical results indicate that the EFH model is better suited in this case than the FH model, so the value of coral reefs is estimated by using the EFH model. With 1 hectare (ha) coral reef, it can be produce for the fishery in harvest about 680 tones, with revenue of 885.001 USD. And benefit from protecting coral reefs after established MPA in Khanh Hoa region is achieved when the implementation of the MPAs has saved 73 ha of coral coverage, with to 243,315 tones of harvest over the period 2002-2008 and amounts benefit of nearly 275 million USD. However, the open access condition in which currently practice in Khanh Hoa is causing damage the coral reefs, and effect negative to the harvest when still increase the effort, thus management should used the policies to reduce the pressure on the coral reef and fishery sector. URI: http://hdl.handle.net/10037/2538 File(s) in this item: 1
thesis.pdf (739.4Kb) -
Tung, Pham Ba Vu (Master thesis; Mastergradsoppgave, 16-May-2010)[+][-]
Abstract: The purpose of this thesis is to measure the mean technical efficiency of improved extensive shrimp farming in Cai Nuoc and Dam Doi districts, Ca Mau Province, Vietnam. Data Envelopment Analysis Input-oriented variable return to scale were used in this thesis and estimating technical super-efficiency was regressed to the pond area, farmer experiences, black tiger shrimp, mud crab stocking density and education of farmers. Technical efficiency of observation farms was the identified determinant factor, results indicated that pond area, experience and education of the owners of the shrimp farms were the mainly positive factors that influence efficiency of improved extensive shrimp farming in both districts. Nevertheless, only in Dam Doi district shrimp stocking density have a negative relationship with technical efficiency. A comparison between the technical efficiency results of the two districts showed that the farms in Cai Nuoc were more highly efficient than farms in Dam Doi District. To improve technical efficiency, the government should conduct training on techniques in shrimp polyculture, establish farmers’ organization should assist to help farmers share their experiences and provide mutual help. In addition, extension officers should organize regular training courses in shrimp polyculture model to help farmers in both districts increasing productivity. URI: http://hdl.handle.net/10037/2568 File(s) in this item: 1
thesis.pdf (1.723Mb)
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