Browsing by Subject "Shrimp"

Now showing 1 - 4 of 4
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    An Evaluation of the Shrimp Industry in North Carolina: Could policy changes such as an altered harvest schedule increase the profitability of the shrimp fishery?
    (2007-08-31T19:12:34Z) Leister, Charles
    This study seeks to evaluate the ability of the North Carolina (NC) shrimp industry to cope with the impacts of imported shrimp on prices. First, this study provides a review of the literature and relevant background information. This essay then analyzes shrimp growth models and data from the National Oceanic and Atmospheric Administration (NOAA). This analysis evaluates the management decisions regarding the timing of the shrimp harvest by comparing the rate of change of prices to the rate of change of shrimp growth for four growth models. The first three models originated from the literature with the first model simulating the growth of male shrimp, the second model simulating the growth of female shrimp, and the third model simulating the growth of both sexes combined. While each of these models simulates the growth of individual shrimp, so the fourth model simulates shrimp population levels in addition to simulating shrimp growth resulting in biomass. Overall, the analysis yielded mixed results and proved highly dependent on the assumptions of the models. The results associated with the first and second models suggested the initial shrimp harvest occur in July rather than May, the analysis associated with the third model suggested managers delay the initial harvest until December or as late as possible to allow shrimpers to harvest all remaining shrimp, and the analysis associated with the fourth model suggested no change in the timing of the shrimp harvest. The mixed nature of these results suggests the need for more information regarding shrimp life history and growth. Following this conclusion, this study provides six general recommendations for the revision of the Fishery Management Plan (FMP) in 2011: 1) Explore the optimal harvest timing, 2) Increase marketing efforts, 3) Address issues of development such as water quality and habitat destruction, 4) Allow fishers to keep and/or sell bycatch within reasonable limits, 5) Increase environmentally responsible aquaculture, and 6) Increase funding for research. By addressing these issues surrounding the shrimp fishery in NC, managers can help to ensure the continued sustainability and profitability of one of North Carolina’s most valuable fisheries.
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    ASSESSMENT OF THE IMPACT OF SHRIMP AQUACULTURE IN NORTHEAST BRAZIL: A REMOTE SENSING APPROACH TO COASTAL HABITAT CHANGE DETECTION
    (2007-05) Zitello, Adam G
    Aquaculture is the fastest growing sector of food production in the world. However, rapid expansion of shrimp aquaculture ponds may induce potentially detrimental changes in extent and health of coastal habitats utilized by migratory shorebirds. The aim of this work is to describe the landscape changes that occurred between 1990 and 2006 in coastal Northeast Brazil as a result of increased shrimp pond development. A suite of remote sensing techniques was employed to process Landsat and ASTER imagery at three separate time periods (1990, 2000 & 2006) and generate land cover maps for each time period. Post-classification change detection analysis revealed critical conversions between identified coastal habitat types in Northeast Brazil. The results of this study revealed a substantial growth of shrimp aquaculture facilities on the northern coast of Northeast Brazil between 1990 and 2006. Contrary to the literature, the expansive tidal salt flats in the study area, not mangrove forests, are experiencing the greatest destruction as a result of shrimp aquaculture. Research and management efforts should be directed at determining the extent of utilization of these salt flat areas by migratory shorebirds.
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    Consumer Demand for Sustainable American Shrimp
    (2009-04-24T17:45:34Z) Greene, Mary
    Increasing competition from foreign imports and rising fuel prices have seriously threatened the Gulf of Mexico shrimp fishery. If the industry is to survive, fishermen must receive more money for their shrimp. This crisis presents an opportunity to address the environmental degradation caused by shrimp trawling, while at the same time providing economic stability for fishermen. By marketing their shrimp as both American and environmentally friendly, fishermen may be able to increase the price of their shrimp. This study investigates consumer willingness to pay for American and environmentally labeled shrimp using survey methodology., Evidence of increased willingness to pay on the part of consumers may provide the impetus necessary to convince fishermen to change their fishing strategies and earn an eco-friendly label.
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    Culture, Capture, and Disease: Shrimp Production in the Age of Industrial Aquaculture
    (2019) Dubik, Bradford A

    This dissertation focuses on the relationship of industrial shrimp aquaculture and shrimp diseases, with an emphasis on the agency of disease in shaping the history of shrimp production. Shrimp aquaculture is concentrated in developing tropical economies, with the significant majority of shrimp exported to consumers in the Global North. The rise of shrimp aquaculture has been accompanied by the development of new technologies and practices, designed to facilitate and govern the growth of the industry. While successful in making aquaculture the single largest production method for shrimp, these innovations also created ideal environments for the emergence and spread of shrimp diseases, which have caused significant and persistent production losses. Disease has brought volatility and risk to producer livelihoods, while also necessitating further technological modernization and development interventions to curb disease outbreaks.

    This research draws on qualitative interviews and contextual economic analyses to explore the role of disease at multiple scales. Chapter 2 examines how disease has shaped industry discourses and he practice of shrimp aquaculture across contexts. The role of the concept of biosecurity is examined to highlight the territorial nature of disease prevention. Chapter 3 explores the context of shrimp aquaculture development in Aceh, Indonesia. This chapter applies the general ideas explored in Chapter 2, to a real-world case, highlighting how the pairing of shrimp and disease is managed as a single commodity. Chapter 4 explores the reach of disease globally, and across methods of production. The economic effects of disease on U.S. wild shrimping are explored, along with the role of disease as a narrative element in resisting global aquaculture.

    It is argued that shrimp disease shapes commodity relationships, influencing production decisions, and development priorities at multiple scales. The unsympathetic quality of disease makes disease prevention an ideal project for enrolling broad coalitions of human and non-human actors, and negating the politics embedded in the relationship of disease prevention with commodification more broadly.