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1
Ku, Wa. "Is Mai Po Gei Wai shrimp cultivation sustainable? : a comparative study with a commercial shrimp farm /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B23427097.
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2
Nguyen, Thuy Thi Hong. "Modeling socio-economic and environmental impacts of shrimp farming in Mekong Delta, Vietnam." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Spring2009/T_Nguyen_042809.pdf.
Повний текст джерелаАнотація:
Thesis (M.S. in environmental science)--Washington State University, May 2009.Title from PDF title page (viewed on June 9, 2009). "School of Earth and Environmental Sciences." Includes bibliographical references (p. 60-61).
3
Burford, Michele. "Fate and transformation of dietary nitrogen in penaeid prawn aquaculture ponds /." [St. Lucia, Qld.], 2000. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18560.pdf.
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4
McGinley, Susan, Wanda McCormack, and Bonnie T. Poulos. "Aquaculture Pathology Program Focuses on Shrimp: Practical Assistance for the Worldwide Shrimp Industry." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/622302.
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5
Lowry, Nicholas. "Biology and fisheries for the spot prawn (Pandalus platyceros, Brandt 1851) /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5388.
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6
Simmons, Tamla A. "Nutrient Transport by Shrimp Hepatopancreas." UNF Digital Commons, 2012. http://digitalcommons.unf.edu/etd/420.
Повний текст джерелаАнотація:
Purified brush border membrane vesicles (BBMV) were isolated to characterize primary cellular transport mechanisms for white shrimp. The ultimate goal is to determine the effective components of a shrimp’s diet, thereby enhancing growth, as well as nutrient content. Juvenile shrimp are dependent on plant material as a food source. Potassium is a key component of plants, thus it may play a role in nutrient transport. In addition, divalent metals have been shown to act as co-transporters in several other organisms, thus they may serve as a transport mechanism for shrimp.
Fresh, live, white or brown shrimp were obtained, and from them 15-30 hepatopancreases were dissected to prepare the BBMV. Methods for preparing BBMV were based on the Mg2+ precipitation technique developed by Kessler et al., (1978) and Biber et al. (1981) for mammalian eipithelia and applied to crustaceans.
The results suggest that there is a sodium/potassium-dependent glucose transport system that resembles the SGLT1 system of vertebrates, except the shrimp transporter can accept both sodium and potassium as cofactors, while the vertebrate system is restricted to sodium stimulation. Potassium showed strong stimulation of L-histidine uptake by shrimp BBMV, suggesting that a crustacean isoform of the insect potassium-dependent carrier protein (KAAT1) might be present in shrimp, and contribute to amino acid uptake.
Amino acids also appear to form bis-complexes with divalent metals, that are transported by an analog of the dipeptide transporter (PEPT1). The metals appear to be accommodated, with varying affinities. PEPT1 has been described as a very non-specific carrier process because it transports such a wide range of di- and tripeptide combinations.
7
Sanderson, Thomas F. "Genetic Components of Male Relative to Hermaphrodite Survival in the Clam Shrimp Eulimnadia Texana." Akron, OH : University of Akron, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1163711815.
Повний текст джерелаАнотація:
Thesis (M.S.)--University of Akron, Dept. of Biology, 2006."December, 2006." Title from electronic thesis title page (viewed 12/31/2008) Advisor, Stephen C. Weeks; Committee members, Francisco B.-G. Moore, R. Joel Duff; Department Chair, Bruce Cushing; Dean of the College, Ronald F. Levant; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
8
Vergara, Castillo Victor Manuel. "Technological change and fisheries development : the case of the Mexican shrimp fishery and shrimp aquaculture." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/70624.
Повний текст джерелаАнотація:
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1990.Includes bibliographical references (leaves [113]-116).
by Victor Manuel Vergara Castillo.
M.C.P.
9
Ku, Wa, and 顧華. "Is Mai Po Gei Wai shrimp cultivation sustainable?: a comparative study with a commercial shrimp farm." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31254913.
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10
Luu, Duc Dien. "The influence of sediment biogeochemistry on water quality and shrimp health in integrated rice-shrimp ponds." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/389086.
Повний текст джерелаАнотація:
Integrated rice–shrimp ponds (IRSPs) are common in areas of southeast Asia where saltwater intrudes into rice fields in the dry season, leading to rice planting in the wet season, and shrimp farming in the dry season or throughout the year. The rotation of rice with shrimp in this system is thought to increase environmental sustainability and contribute to food security. Nevertheless, the productivity of IRSPs is generally low and unreliable, and technical solutions do not address the impacts of climate change. Consequently, farmers experience reduced livelihood and lifestyle opportunities. The understanding of the biogeochemistry in shrimp ponds has focused on water column processes. However, shrimp live at the sediment–water interface where chemical and biological processes in and on the sediment, and the effects on water quality, can impact shrimp health, and overall pond productivity. This PhD research examines the sediment biogeochemical processes particularly relevant to shrimp health in IRSPs, i.e. nutrients and oxygen. Options for modifying conditions to improve IRSPs productivity are also discussed. The study examined ISRPs in two districts of Ca Mau Province, Vietnam. In the nutrient budget study, 12 farms in Cai Nuoc District were examined. It became clear that this district was marginal for sustainable rice production; hence in order to examine biogeochemical processes in more detail, two ISRPs in Thoi Binh District, where rice production was more sustainable, were investigated. A combination of measurements of parameters in the water and sediment were combined with nutrient and oxygen flux measurements in situ (pond side) to understand the dynamic nature of these systems. The first step in understanding biogeochemical processes was to estimate nutrient budgets in IRSPs. The study showed that the main nutrient input (92% of the N input, 57% P and 95% C) came from intake water, while water discharge accounted for the highest output (75% of the N output, 41% P and 57% C). Hence, most of the nutrients were not assimilated in the ponds. The main reason for this poor assimilation was low shrimp densities and survival (6.3 ± 2.2%); thus the nutrients did not convert to shrimp biomass. This, combined with the low rice harvest (mostly no rice crop due to high salinity affecting rice production), supports the conclusion that IRSPs seemed to be inefficient systems. Furthermore, fertilizer addition only accounted for 8% N, 43% P and 5% C of the total input, and thus fertilizer addition was likely to be an unnecessary expense. The study also found that IRSPs had periods of low dissolved oxygen (DO) concentration which may have a critical negative effect on shrimp survival. To understand the causes of low DO, oxygen fluxes were examined at two IRSPs during a two-year period. The key finding was that a high percentage of oxygen demand at a whole pond scale was from the sediment; hence sediment oxygen demand (SOD) drove low DO concentrations in the water column. Moreover, oxygen demand was considerably higher than oxygen production within the IRSPs, indicating high bacterial activity relative to algal production. SOD rates were significantly positively correlated (p < 0.05) with chlorophyll a concentrations in the water column. These findings suggest that algal production in the water column, rather than benthic algal production, or other organic loadings, provided an organic carbon source driving SOD. Sediment nutrient pathways were also examined at the same two IRSPs to understand drivers of poor water quality. The study showed that the IRSPs had low denitrification efficiency. Denitrification rates were significantly positively correlated with chlorophyll a concentrations in the sediment, suggesting carbon availability was a key driver. Nitrate, ammonium and phosphate concentrations in the water column were high despite low sediment nutrient fluxes. Given the low sediment nutrient fluxes, and low N removal by denitrification, high nutrient loads in the ponds were likely derived from incoming water. Despite the low mean values for denitrification, the fact that values at some sites within the ponds were high suggests that there was scope to enhance denitrification, via C addition, and hence to improve water quality. In summary, this study examines key nutrient biogeochemical fluxes in IRSPs and shows, for the first time, that sediment was a main driver of low oxygen conditions in these ponds. High nutrient loads, which also ultimately helped drive low oxygen conditions, were the result of poor quality incoming water and inefficient N removal via denitrification. Nutrients were mostly in-fluxing into the sediment; hence sediment nutrient fluxes were relatively low and were minor contributors to water column nutrients. These key findings indicate that rather than contributing to eutrophication in adjacent waterways, IRSPs were net nutrient removal mechanisms.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environment and Sc
Science, Environment, Engineering and Technology
Full Text
11
Feldman, Kristine Ladyka. "Contrasting patterns of habitat-specific recruitment success in sympatric species of thalassinidean shrimp : effects of epibenthic bivalve shell with implications for population control in areas with commercial oyster culture /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/5321.
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12
De, Silva L. L. S. S. K. "Lactic acid fermentation of shrimp waste." Thesis, Loughborough University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314517.
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13
Schaefer, Matthew David. "Microwave Tempering of Shrimp with Susceptors." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/36251.
Повний текст джерелаАнотація:
Microwave tempering experiments were conducted on frozen blocks of shrimp (FSB) and the results were used to help determine if microwave tempering of FSB is an improved thawing method over the current, traditional method, water immersion. Results of the microwave tempering experiments were also used to help determine which microwave tempering method amongst those explored by this study is most effective.
Complete thawing of a FSB in a microwave oven was found to be impractical; however, using a combination of microwave tempering followed by water immersion can successfully thaw a FSB. After a microwave tempering experiment was conducted, the final stages of thawing were completed by using the traditional water immersion method. The amount of time to complete the thawing was recorded and is referred to as the additional thawing time. The amount of shrimp cooked during microwave tempering was also recorded and calculated as a percent. The additional thawing time and the percentage of shrimp cooked were used as criteria to compare microwave tempering experiments and also to compare microwave tempering experiments with the current method.
The first set of microwave tempering experiments explored the advantages of freezing a microwave susceptive material within the FSB before microwave tempering. FSBs with susceptors and FSBs without susceptors were tempered in a microwave oven. The FSBs were tempered in a 2450 MHz microwave oven at 255 W for 35 minutes and at 406 W for 22 minutes. The results showed that the addition of susceptors does improve the microwave tempering process. The percentage of cooked shrimp and the additional thawing time was less for FSBs with susceptors than for FSBs without susceptors. The susceptors seem to help distribute the microwave energy more evenly, which reduces runaway heating and in turn reduces the amount of shrimp cooked.
When compared to the current method, microwave tempering with susceptors reduced the total thawing time by 45% while microwave tempering without susceptors reduced the total thawing time by 43%. Both microwave tempering methods, with and without susceptors, are an improvement over the current method. The addition of susceptors does improve the microwave tempering process; however, the improvements are not significant enough to justify its recommendation.
The second set of microwave tempering experiments explored the advantages of pulse microwave tempering. During pulsed microwave tempering the microwave oven was set to a high power level and was turned ON for a period of time and then OFF for a period of time. The ON/OFF pattern was repeated throughout the microwave tempering process. Several pulsed tempering experiments were conducted at a microwave power level of 848 W and at a microwave power level of 993 W. The results showed that there is no significant advantage to using pulsed microwave energy during tempering as opposed to continuous, fixed microwave energy. The results showed that fixed microwave tempering is more effective than pulsed microwave tempering. The percentage of cooked shrimp was lower for fixed experiments than for pulsed experiments and the additional thawing time was slightly less for fixed experiments than for pulsed experiments.
A mathematical model was developed to help predict he temperature profiles of a FSB during microwave tempering. Experimental temperature data were collected at four locations within the FSB during microwave tempering by using four Luxtron Fluoroptic temperature probes and a Luxtron Fluoroptic thermometer. Overall, the temperatures predicted by the model were within 2 oC of the experimental temperatures. After the first 500 seconds or so of microwave tempering, the temperatures predicted by the model were consistently less than the experimental temperatures.
From this study it was determined that the most effective microwave tempering method, amongst those conducted in this study, of a 2.2 kg (5 lb) frozen block of shrimp was accomplished by setting the power output to 255 W and the microwave cooking (tempering) time to 35 minutes. As previously mentioned, the addition of susceptors does improve the process but the improvements are not significant enough to justify its recommendation. Pulse tempering is not an improved method over fixed tempering.Master of Science
14
Pengseng, Puan Boyd Claude E. "Resource use and waste production at a semi-intensive black tiger prawn Penaeus monodon farm." Auburn, Ala., 2007. http://repo.lib.auburn.edu/Send%2002-04-08/PENGSENG_PUAN_14.pdf.
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15
Uddin, Mohammad Taj. "VALUE CHAINS AND STANDARDS IN SHRIMP EXPORT." 名古屋大学大学院国際開発研究科, 2008. http://hdl.handle.net/2237/10939.
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16
Wendt, Franz. "Ansätze für eine datengestützte Analyse von SHRIMP." Universität Leipzig, 2017. https://ul.qucosa.de/id/qucosa%3A72504.
Повний текст джерелаАнотація:
Zum Ende der Förderung durch die Förderlinie „Lehrpraxis im Transfer“ wurde eine Pilotstudie zur datengestützten Lernanalyse (Learning Analytics) durchgeführt, die das Potenzial der SHRIMP Plattform für diese Form der Auswertung erkunden sollte. Vorgehen und Ergebnisse dieser Pilotstudie sind in diesem Paper kurz dokumentiert.:1. Einleitung
2. Methodik und Daten
3. Analyse
4. Zusammenfassung
5. Gründe und Ansätze für eine weiterführende, datengestützte Analyse von SHRIMP
17
Lui, Tak-hang. "Macrobenthic faunal assemblages of a traditional tidal shrimp pond at Mai Po Marshes Nature Reserve, Hong Kong /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20897455.
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18
Ng, Lai-yee Joyce. "Culture of the white shrimp Litopenaeus vannamei in re-circulating artificial sea-water systems /." View the Table of Contents & Abstract, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38030883.
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19
Ng, Lai-yee Joyce, and 吳麗儀. "Culture of the white shrimp Litopenaeus vannamei in re-circulating artificial sea-water systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B45015612.
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20
Lavantucksin, Vanida. "Environment, development and trade : the case of shrimp farming in Thailand /." St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16240.pdf.
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21
Cordero, Francisco Javier Martinez. "Regional economic planning of shrimp aquaculture in Mexico." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/995.
Повний текст джерелаАнотація:
Aquaculture plays a critical role in alleviating demand pressures caused by increasing fish consumption and over-exploitation of fishery stocks. While aquatic foods are generally considered low-revenue generators in comparison to other protein-sources, aquaculture products help to support food security, income, and higher standards of living, particularly in developing countries. Decision makers, i.e. policy-makers and farmers, are challenged with the responsibility of planning and conducting aquaculture development in a sustainable way whereby social, environmental and economic goals are simultaneously satisfied. Existing studies that economically evaluate the industry for its current and historical performance, and future development scenarios are invaluable to sustainable planning, but have not been developed in Mexico. This dissertation is comprised of two essays applying Economics and Operations Research theory to regional economic planning for the sustainable development of shrimp farming in northwest Mexico. The analyses are carried out both at the micro (farm) and macro (industry planning and development) levels based on an unbalanced panel of shrimp semi-intensive farms containing primary-source information at pond level for the period 1994, 1996-1998. Using an input distance function approach, the first essay examines total factor productivity (TFP) and technical efficiency (TE) using both traditional (T) and environmentally-adjusted (EA) indicators. The reduction in TFP was determined to be due to a technological regression as reflected by increased input-intensive production technology resulting in an increase in undesirable outputs. The learning curve resulting from a shift from white shrimp to blue shrimp production species resulted in higher FCRs, water exchange and pollution emissions, despite increasing shrimp yields. In all years except 994, EA TE and EA TFP were lower than the traditional TE and TFP scores. TE and TFP had an opposite behavior than yields in this period of time. In order to improve the technological change (TC) component of TFP in light of stable TE scores, increased government assistance in disseminating technological know-how is necessary to improve TFP at a faster rate during the transition period. A sensitivity analysis also revealed the economic feasibility of the implementation of pollution abatement technology based on the calculated shadow price of N and P pollutants at USD $6.35/kg and $8.3/kg respectively. In the second essay, a multi-criteria decision making (MCDM) model was developed to evaluate the sustainable development of shrimp farming in the northwest region of Mexico (States of Sonora, Sinaloa and Nayarit) based on government objectives for aquaculture development in Mexico. Three possible production systems among two species were investigated. The optimal combination of new shrimp farms within 22,500 ha over a five-year period is determined. The planning objectives assumed in the MCDM model are maximization of employment (E), foreign exchange earnings (XG), and economic rent (ER), and total pollution (TOTALPOLL) minimization, subject to land availability and local market demand constraints. Under a preliminary evaluation of single objective optimization, XG and ER maximization produce similar results: USD $888.6 and $322.5 million in foreign exchange earnings and economic rent respectively, and the creation of 6,150 jobs. The MCDM model was implemented using Feasible Goals, which allows for the simultaneous graphical evaluation of decision maps arising from trade-offs among efficient solutions. When fully allocating the available land (22,500 ha), the multiobjective development of the shrimp farming industry produces 7,490 new jobs, ER and XG of USD $204.5 and $497.6 million respectively, with a total pollutant discharge of 2,000 tons. The multiple-criteria optimization strongly favors semi-intensive systems (93% of the total 466 new farms), producing 57,119 tons of shrimp by 2005. The sustainable development of the industry based on the assumptions of this analysis does not suggest intensification of systems. Rather, the results of the MCDM analysis support the claim that semi-intensive farms, which are more common in Mexico, promote sustainability. Based on the findings of each of the essays, it is suggested that production performance indicators are needed on a periodic basis for the evaluation of the shrimp industry of Mexico. Production performance measurements may better assist farmers in the decision-making for industry sustainability and growth. Moreover, direct determination of N and P discharges by farms are recommended in future studies as well as incorporating risk and employing longer time series.
22
Hooper, G. R. "Adaptation and selection in the brine shrimp Artemia." Thesis, Swansea University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637302.
Повний текст джерелаАнотація:
The selective effects of Copper, Mercury, Cadmium, and sump oil on three bisexual species of Artemia were examined in both short and long term tests. The frequencies of alleles and genotypes of five loci were monitored, using starch gel electrophoresis, in populations of Artemia exposed to high doses of pollutant. Several indications of resistance being associated with particular genotypes or alleles were found. Competition experiments of bisexual and asexual species were also conducted under various regimes of temperature and salinity. Cyclical dominance found in natural co-existing populations of asexual and bisexual Artemia was successfully modelled in the laboratory and evidence obtained of preferred conditions for each mode of reproduction. The relative advantages of sexual and asexual reproduction are discussed, with reference to Artemia. An attempt was made to determine the heritability in A. franciscana of resistance to Carbon Dioxide saturated waters in order to establish a pathway of gene exchange with A. monica, which is found in carbonate waters. This does not appear to be a significantly heritable trait. Seventeen new strains obtained from cyst samples were analysed using starch gel electrophoresis. This information was added to the database of Artemia electrophoretic data compiled by Abreu (1983), and using the BIOSYS computer programme the following were produced for A.salina, A.franciscana and the asexual strains: - Similarity and Distance Coefficients - Phenetic analysis. - Phylogenetic analysis.
23
Alvarez, Julia D. "Studies on Venezuelan fish and shrimp associated bacteria." Thesis, Heriot-Watt University, 1998. http://hdl.handle.net/10399/619.
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24
Ximenes, JÃlio CÃsar Martins. "Shrimp waste biotransformation in high value added products." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16575.
Повний текст джерелаАнотація:
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoFundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico
A carcinicultura à o segmento da aquicultura que mais cresce no mundo. No Brasil, o Cearà à o maior produtor com 50% de toda a produÃÃo. Sabe-se que aproximadamente 40% do peso do camarÃo sejam considerados resÃduos, como a cabeÃa, a cauda e a casca, gerando grandes quantidades de resÃduos que devem ser descartados adequadamente. Assim, o reaproveitamento de resÃduos da carcinicultura atravÃs de recursos biotecnolÃgicos surge como uma alternativa inovadora para reduzir a poluiÃÃo ambiental causada por essa atividade. O presente estudo teve por objetivo aperfeiÃoar um processo biotecnolÃgico baseado na utilizaÃÃo de consÃrcio bacteriano capaz de fermentar os resÃduos da carcinicultura transformando-os em lÃquor para ser utilizado na alimentaÃÃo de pÃs-larvas de TilÃpia do Nilo (Oreochromis niloticus) em fase de reversÃo sexual. As linhagens de bactÃrias lÃticas utilizadas foram identificadas atravÃs do sequenciamento dos genes RNAr 16S, rpoA e pheS e por testes bioquÃmicos envolvendo a habilidade de fermentar carboidratos. Para a seleÃÃo do consÃrcio foram realizados estudos de cinÃtica quÃmica, modelos matemÃticos de Monod, Andrews e Levenspiel para determinar possÃveis tipos de inibiÃÃo do processo de fermentaÃÃo lÃtica de cabeÃas de camarÃo. Para avaliar o potencial do lÃquor resultante da fermentaÃÃo como suplemento na alimentaÃÃo de pÃs-larvas de tilÃpia foram confeccionadas raÃÃes com inclusÃes de lÃquor na proporÃÃo de 15, 30 e 45 %, monitorando-se a qualidade da Ãgua e os parÃmetros de temperatura, oxigÃnio dissolvido, pH, salinidade, nitrogÃnio amoniacal total, nitrito, nitrato e ortofosfato, alÃm do desempenho zootÃcnico. Para tanto, foram avaliados a taxa de sobrevivÃncia, taxa de crescimento especÃfico, ganho em peso e comprimento, fator de conversÃo alimentar e seleÃÃo por tamanho. Como resultados deste trabalho foram identificadas linhagens de lactobacilos nomeadas Lact7, Lact8, Lact9 e Lact14 como pertencentes a espÃcie Lactobacillus plantarum, Lact6 como L. futsaii e Lact11 como Pediococcus acidilactici. Quantos aos parÃmetros cinÃticos da fermentaÃÃo, as linhagens Lacts6, Lact7 e Lact14 apresentaram os melhores resultados e nÃo houve indÃcios de inibiÃÃo pelo substrato ou produto. Durante a fermentaÃÃo das cabeÃas de camarÃo o consÃrcio formado pelas linhagens Lact6 e Lact14 produziram os mais altos rendimentos de Ãcido lÃtico, cerca de 100 g.L-1. InclusÃes do lÃquor resultante da fermentaÃÃo lÃtica dos resÃduos de camarÃo nas proporÃÃes de 15 e 30 % proporcionaram os melhores resultados para sobrevivÃncias, ganho em peso e comprimento, taxa de crescimento especÃfico e biomassa de pÃs-larvas de TilÃpia do Nilo. A conversÃo alimentar nÃo diferiu entre os tratamentos. Nitrito, nitrato e ortofosfato aumentaram significativamente ao longo das semanas, embora as concentraÃÃes tenham se mantido em nÃveis aceitÃveis, bem como os demais parÃmetros se mantiveram dentro do recomendado durante o desenvolvimento da tilÃpia. Os dados desse estudo mostraram que à tecnologicamente viÃvel transformar resÃduos da carcinicultura em produtos de valor agregado por fermentaÃÃo lÃtica. O lÃquor resultante da fermentaÃÃo, rico em proteÃnas, pigmentos e minerais pode ser incorporado na proporÃÃo de atà 30% na raÃÃo, sem causar nenhum impactado no desenvolvimento de pÃs-larva da tilÃpia e portanto, trazendo benefÃcios econÃmicos e destinaÃÃo apropriada para resÃduos da carcinicultura.
Shrimp farming is the fastest growing segment in aquiculture in the world. In Brazil, Ceara is the largest producer with 50 % of all production. Approximately 40 % of the shrimp weight is considered waste as the head, tail and bark, generating large amounts of waste that must be properly discarded. Thus, the reuse of shrimp farming waste through biotechnological resources emerges as an innovative alternative to reduce environmental pollution caused by that activity. This study aimed to perform a biotechnological process based on bacterial consortium capable to fermenting shrimp waste turning them into a liquor used in feed for Nile tilapia (Oreochromis niloticus) post-larvae in sex reversal process. Lactic acid bacteria strains used were identified by sequencing of the 16S rRNA, rpoA and pheS genes and biochemical tests involving the ability to ferment carbohydrates. For the consortium selection some studies were performed such as chemical kinetics use of Monod, Andrews and Levenspiel mathematical models to determine possible types of inhibition. To evaluate the liquor potential from fermentation as a supplement in feed for tilapia post-larvae were prepared feed diets with liquor inclusions of 15, 30 and 45 %, by monitoring the water quality and temperature parameters, dissolved oxygen, pH, salinity, total ammonia nitrogen, nitrite, nitrate and orthophosphate in addition to growth performance. For that, we evaluated the survival rate, specific growth rate, weight and length gain, feed conversion factor and selection by size. This work identified lactobacilli strains named Lact 7, Lact 8, Lact 9 and Lact 14 as belonging to Lactobacillus plantarum species, Lact 6 as L. futsaii and Lact 11 as Pediococcus acidilactici. As to fermentation kinetic parameters, Lact 6, Lact 7 and Lact 14 strains showed the best results and there was no evidence of inhibition by substrate or product. During shrimp heads fermentation Lact 6 and Lact 14 consortium produced the highest lactic acid yields, about 100 g.L-1. Liquor inclusions of 15 and 30 % provided the best results for survival, weight and length gain, specific growth rate and biomass of Nile tilapia post-larvae. Feed conversion did not differ between treatments, being slightly higher in treatment with 30 % of liquor. Nitrite, nitrate and orthophosphate increased significantly over the weeks, although concentrations have remained at acceptable levels and other parameters remained within the recommended during the tilapia development. The data from this study showed that it is technologically feasible to transform shrimp farming waste into added-value products by lactic fermentation. The resulting liquor fermentation, rich in protein, minerals and pigments can be incorporated in a proportion of up to 30% in tilapia feed, without causing, any impact the development of tilapia post-larvae and thus bringing economic benefits and proper disposition of shrimp farming waste.
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Perez, Frank A. Koch Christof. "Hue segmentation, color circuitry, and the Mantis shrimp /." Diss., Pasadena, Calif. : California Institute of Technology, 1995. http://resolver.caltech.edu/CaltechETD:etd-10182007-093223.
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Zhou, Xia Vivian. "A bioeconomic model of recirculating shrimp production systems." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-07032007-161650.
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Phornprapha, Warinyupa. "Shrimp Farming in Thailand: A pathway to Sustainability." Scholarship @ Claremont, 2020. https://scholarship.claremont.edu/pomona_theses/208.
Повний текст джерелаАнотація:
Throughout this thesis I have laid out several factors that have contributed to the sustainability of shrimp farming in Thailand, and if sustainability whilst maintaining production can ever be achieved. To find out the current situation of shrimp farming in Thailand, the history of global and Thai shrimp farming is described. The social and environmental problems of the unsustainable history of shrimp farming in Thailand is then considered. Solutions to these effects conclude that it is up to the consumer to demand for better regulations from the government and the shrimp companies to ensure a sustainable future for shrimp farming both globally and in Thailand.
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Anderson, Robert Scot. "DETERMINATION OF A QUANTITATIVE DESCRIPTIVE LANGUAGE FOR FRESHWATER PRAWN (MACROBRACHIUM ROSENBERGII) AND CONSUMER ACCEPTANCE BASED ON A WILLINGNESS-TO-PAY MODEL." Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-03302008-103841.
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Arnott, Stephen Andrew. "The tail flip escape response of the brown shrimp Crangon crangon (L.) in the context of predator-prey interactions." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321068.
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Bukhari, Feisal Abdulaziz. "Studies to optimise the culture conditions for Penaeis indicus from the Saudi Arabian coast of the Red Sea." Thesis, Bangor University, 1994. https://research.bangor.ac.uk/portal/en/theses/studies-to-optimise-the-culture-conditions-for-penaeis-indicus-from-the-saudi-arabian-coast-of-the-red-sea(e21fb7fb-a33c-4a79-92d6-b252c5cf7bd4).html.
Повний текст джерелаАнотація:
On the Red Sea coast of Saudi Arabia ponds utilising seawater drawn from wells have an average salinity of 43%o and temperatures ranging from 23-33°C. The present study has demonstrated that yields of up to 4.3 tonnes ha"' of the Indian white shrimp Penaeus indicus at 20 g size may be obtained in these ponds. P. indicus was isolated from local stocks (Gizan) and has now been cultured through several generations at the Fish Farming Centre. Present work has determined that the optimal salinity for larval culture is 30960 and for nursery culture 25-30960. The best stage for transfer from nursery to growout pond (43960) is about PL25. Comparison with biological data for P. indicus cultured elsewhere indicates that Red Sea populations may be preadapted to tolerate high salinities. The potential for artificial feeds to replace live feeds in P. indicus larval culture from Z1 to PL1 and PL5 using microencapsulated feeds, Nippai and Frippak has been investigated. Results reveal that 50% replacement with Nippai and Frippak is possible giving comparable growth to the control, but poorer survival. Also comparative growth trials were conducted with post larval P. indicus (PL5-PL30) spawned from Red Sea stock and cultured through larval stages on five feeds (Chaetoceros, Tetraselmis and Artemia). Post larvae were reared on commercial feeds: Taiwanese, Nippai, Frippak and 4 formulated feeds based on locally available ingredients at 28-30°C and at 3016 and 42i salinities. Feeding trials at 42% produced poor survival, but at 30% all treatments gave over 50% survival to PL25, at which stage shrimp are ready for stocking in growout ponds. Although the Taiwanese feed produced the overall fastest growth, it was not significantly better (P > 0.05) than two locally formulated diets (FFC1,4) or Frippak. Survival rates of over 60% where achieved on all diets with the exception of Nippai and Taiwanese feeds. Yields were significantly higher (P < 0.05) on one of the locally prepared diets (FFC1) than Taiwanese and Nippai, and Taiwanese than Nippai. All diets yielded significantly more shrimp biomass at 30960 than 4216 (P > 0.05). The relative costs of imported and locally produced diets are discussed and it is concluded that it is possible to produce cost-effective nursery diets in Saudi Arabia. A growout feeding study for P. indicus juvenile utilising 4 locally formulated diets compared with a Taiwanese diet revealed no significant difference (P. > 0.05) in survival nor in growth or yield amongst all diets. However growth was slow due to low pH and high ammonia levels. Finally shrimp density production trials at 20, 40,60 and 80m"2 during winter and summer were conducted in cages placed in a rubber lined pond. For all densities; yields were significantly higher in summer than winter with an overall average of 3.41±1.5 tonnes and 4.04±2.36 tonnes 180 days-- for winter and summer respectively. Yield at 80m'1 was highest but was not different from yield at 60m'2. Based on average harvested size and market price the density of 60. =was regarded suitable for growout culture.
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Haig, Jodie. "A Phylogeographic Study of Seagrass-Associated Shrimp in Queensland." Thesis, Griffith University, 2010. http://hdl.handle.net/10072/366639.
Повний текст джерелаАнотація:
Seagrasses are ephemeral, patchy habitats, under increasing risk of fragmentation due to anthropogenic changes. The ongoing and increasing loss of seagrass makes it essential that we understand the processes of movement and connectivity of the animals which rely on seagrass as a habitat. Shrimp are among the most abundant and diverse animals in seagrass habitats. Much of the published literature remains focused on one particular facet of shrimp life. Ecologists tend to generalise habitat-scale patterns of shrimp family groups where more specific studies on individual species may only focus on the biology, taxonomy or phylogeography alone. Few studies combine ecology, biology and phylogeography. This thesis attempts to achieve a comprehensive understanding of the biology, ecology, diversity, distribution, connectivity, and phylogeography of one of the most abundant shrimp taxa from Queensland seagrasses: Phycomenes zostericola. This holistic approach provides a solid foundation of information against which to compare future connectivity studies and also other seagrass species. In general, caridean shrimp are planktonic during their early life stages and will then recruit into the same habitat type which their parents occupy. Having a planktonic larval phase allows them the potential for broad dispersal. This study found that the potential for movement among P. zostericola populations is considerable; the adults were found to frequently move among seagrass patches and larvae have a planktonic phase of anywhere up to three weeks. Surprisingly, P. zostericola show a surprising amount of genetic structure for a marine species with a planktonic larval phase. The close association of adults to seagrass habitat and the reliance of P. zostericola larvae on a current to maintain suspension may be the limiting factors preventing P. zostericola from fulfilling their migration and dispersal potential. P. zostericola has a broad distribution and can be found in most seagrass habitats around Queensland. A cryptic (morphologically indistinguishable) sibling species was discovered that is sympatric throughout the northern range of the P. zostericola distribution. The discovery of the divergent taxon provided a unique opportunity for a comparative phylogeographic study. The two sibling taxa diverged between 3.2 and 4.6 million years ago and since then have been exposed to similar biogeographic influences. A mitochondrial dataset, using the gene cytochrome oxidase I (COI), describes the historical and contemporary levels of connectivity and demographic change in response to marine biogeographic boundaries, sea level changes and currents. While regional 3 genetic structure was found to be similar between the two species, demographic changes were not. The two populations of Phycomenes are also under some kind of north vs. south selective pressures. The nuclear gene, myosin heavy chain (MyHC), shows a distinct latitudinal pattern in both Phycomenes species. This genetic pattern indicates that groups north and south of far northeast Queensland are exposed to significantly different conditions resulting in different selective forces operating on the myosin gene. Both the mitochondrial gene COI and the nuclear gene MyHC were analysed for broadly distributed populations of two other seagrass caridean species; Latreutes mucronatus and Cuapetes sp. Similar to Phycomenes, both of these species contained multiple, morphologically identical, yet genetically distinct species. The deep levels of divergence indicate that speciation had occurred between 8 and 25 million years ago. The multiple cryptic taxa found in this study confirm two commonly stated hypotheses about marine taxa: firstly, cryptic speciation is common in marine taxa and this is just as true for seagrass caridean shrimp as other groups. Secondly, biodiversity estimates in shallow marine systems are currently underestimated due to high levels of unidentified cryptic taxa. A loss of statistical power is unavoidable in sampled populations which contain cryptic taxa. Although small sample numbers of Latreutes and Cuapetes species did not allow rigorous genetic statistical analysis they did provide some insight into the structure of these populations. All analysed seagrass shrimp taxa (Phycomenes, Latreutes and Cuapetes) maintained signals of demographic expansions prior to the last glacial maximum, suggesting that the vast and rapidly changing sea-levels throughout the Pleistocene did not have drastic demographic impacts on seagrass shrimp populations over broad spatial scales. Although lowered sea levels did not have dramatic demographic effects, low sea levels and strong currents probably provided the necessary conditions for long distance migration / dispersal events; this is evident in the haplotype sharing between geographically distant populations for most of the study taxa. This study provides valuable insight into the contemporary levels of connectivity and the past responses to major environmental and habitat changes. These data will hopefully contribute to the much needed baseline data used to guide future conservation efforts of inshore marine habitats.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
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Diaz-de-Leon-Corral, Antonio Jesus. "Exploitation and management of the Sinaloa shrimp fishery, Mexico." Thesis, Imperial College London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309900.
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Al-Maslamani, Ibrahim A. M. J. "Feeding and nutrition in the marine shrimp Penaeus semisulcatus." Thesis, Bangor University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434897.
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Kappas, I. "Microevolution and genetic differentiation in the brine shrimp Artemia." Thesis, Swansea University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637759.
Повний текст джерелаАнотація:
Intraspecific genetic differentiation between populations of Artemia franciscana from San Francisco Bay (SFB) and Vietnam (feral) as well as evolutionary divergence between Asian Artemia species have been investigated using allozymes, reproductive characters and mitochondrial DNA. Allozyme analysis (20 loci) of A. franciscana, SFB and derived (over a period of one to seven years) Vietnamese populations reveals considerable genetic differences between samples, cultured at combinations of two salinities (80 ppt, 120 ppt) and three temperatures (26oC, 30oC, 34oC). Combined probability values (pooled over all polymorphic loci) of tests for allele frequency homogeneity between all salinity/temperature combinations range from <10-4 to 0.033. In addition, cluster analysis applied to all levels of comparison (within and between temperatures and salinities) shows evidence of differentiation of Vietnamese Artemia from the wild (SFB) stock as early as within a year after inoculation. Rapid divergence between SFB and Vietnamese Artemia is also evident from an analysis of reproductive (fecundity) traits. Vietnamese populations seem to be better adapted to increased temperature, as gauged by the significantly higher reproductive output they display compared to San Francisco Bay Artemia. Correlations between individual heterozygosity and fitness also confirm, albeit in a few cases, the existence of a strong genetic component involved in the determination of reproductive profiles. Similar patterns of genetic differentiation to those obtained by allozymes and reproductive traits are revealed by mitochondrial DNA RFLP markers. However, unlike allozymes, there is strong evidence of a reduction in haplotype diversity from 40.6% in SFB Artemia to 10.5% in the established Vietnamese strain.
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Costa, JanaÃna de Paula da. "Shrimp powder obtained by spray dryer: characteristics and application." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15698.
Повний текст джерелаАнотація:
FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgicoA maior necessidade por produtos de conveniÃncia, fÃceis de preparar, motivada pelo novo estilo de vida e, ainda, a invasÃo das prateleiras por produtos estrangeiros de alta qualidade e diversificaÃÃo, vÃm modificando o tradicional consumidor de alimentos. O objetivo desse trabalho foi obter camarÃo em pà por meio da aplicaÃÃo do processo de spray dryer, assim como determinar sua composiÃÃo centesimal, caracterÃsticas fÃsico-quÃmicas, estudar a estabilidade do produto embalado em dois tipos de embalagens (laminada e polietileno) com e sem vÃcuo e armazenado por um perÃodo de 120 dias e ainda aplicar o camarÃo em pà na formulaÃÃo de snacks assim como avaliar sua composiÃÃo centesimal, caracterÃsticas fÃsicas e avaliaÃÃo sensorial. Os resultados mostraram que à dispensÃvel o uso de adjuvantes de secagem na desidrataÃÃo do camarÃo em spray dryer, podendo perfeitamente ser desidratado na temperatura do ar de entrada de 120 ÂC. O camarÃo em pà apresentou um valor nutricional satisfatÃrio com elevado teor proteico e baixo teor de gordura assim como uma fonte apreciÃvel de minerais. O estudo da estabilidade permitiu observar que o uso de vÃcuo nÃo surte total efeito sobre o produto, exceto no que se refere à oxidaÃÃo lipÃdica, em contra partida hà uma diferenÃa significativa entre as embalagens, apresentando a embalagem laminada maior eficÃcia na manutenÃÃo da atividade de Ãgua e umidade. O camarÃo em pà contribuiu para o aumento do valor nutricional do snacks especialmente no referente ao teor de proteÃnas e minerais. O processo de secagem em spray dryer nas condiÃÃes estipuladas nesse estudo se mostraram eficientes na obtenÃÃo do camarÃo em pà com caracterÃsticas nutricionais e fÃsico-quÃmicas de qualidade que favorecem sua utilizaÃÃo na formulaÃÃo de snacks.
The greatest need for convenience products, easy to prepare, driven by new lifestyle and also the invasion of shelves for foreign products of high quality and diversification, have been modifying the traditional consumer of food. The aim of this study was to obtain shrimp powder by applying the spray dryer process, and to determine their chemical composition, physical and chemical characteristics, to study the stability of the packaged product in two types of packaging (laminated polyethylene) with and without vacuum and stored for a period of 120 days and still apply the shrimp powder in snacks formulation also its chemical composition, physical characteristics and sensory evaluation. The results showed that it is unnecessary to use adjuvants in the drying dehydration of the shrimps in spray dryer, which can be perfectly dehydrated at 120 Â C inlet air temperature. The powdered shrimp showed a satisfactory nutritional value with a high protein content and low fat content and a substantial source of minerals. The study of the stability has observed that the use of vacuum do not freak total effect on the product except as regards to lipid oxidation, departure counter there is a significant difference between the packaging, the packaging laminate having the most effective in maintaining activity water and moisture. The shrimp powder contributed to increasing the nutritional value of the snack, especially in regard to the protein content and minerals. The drying process in spray dryer in the conditions stipulated in this study were efficient in getting the shrimp powder with nutritional and physicochemical quality characteristics that favor its use in snacks formulation.
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Pham, Kang Van. "Challenges to shrimp production in the Bentre province, Vietnam /." Tromsø : Norwegian College of Fishery Science, Universitetet i Tromsø, 2008. http://www.ub.uit.no/munin/bitstream/10037/1430/1/thesis.pdf.
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Taylor, Llewellyn Rupert. "The ecology of and genetic variation in selected species of the freshwater prawn genus Macrobrachium." Thesis, 2014. http://hdl.handle.net/10210/11925.
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"Feeding behaviour of the early life history stages of the shrimp Metapenaeus ensis." Chinese University of Hong Kong, 1991. http://library.cuhk.edu.hk/record=b5886882.
Повний текст джерелаАнотація:
by Patrick Kah Kin Leong.Thesis (M.Phil.)--Chinese University of Hong Kong, 1991.
Includes bibliographical references.
ABSTRACT --- p.i
ACKNOWLEDGEMENTS --- p.iii
TABLE OF CONTENTS --- p.iv
LIST OF TABLES --- p.vii
LIST OF FIGURES --- p.viii
LIST OF PLATES --- p.xi
LIST OF ABBREVIATIONS --- p.xii
Chapter CHAPTER1 --- INTRODUCTION --- p.1
Chapter CHAPTER2 --- LITERATURE REVIEW
Chapter 2.1 --- Biology of Metapenaeus ensis --- p.4
Chapter 2.2 --- Definitions in the measurements of zooplankton feeding rate --- p.5
Chapter 2.3 --- Zooplankton feeding rates and food concentration --- p.6
Chapter 2.4 --- Other factors affecting feeding behaviour --- p.11
Chapter 2.5 --- Feeding patterns of the early life history stages in various crustaceans --- p.14
Chapter 2.6 --- Selective feeding --- p.17
Chapter CHAPTER3 --- LARVAL DEVELOPMENT OF Metapenaeus ensis
Chapter 3.1 --- Introduction --- p.20
Chapter 3.2 --- Materials and Methods --- p.22
Chapter 3.3 --- Results --- p.25
Chapter 3.4 --- Discussion --- p.52
Chapter CHAPTER4 --- THE GRAZING BEHAVIOUR OF EARLY LIFE HISTORY STAGES OF Metapenaeus ensis
Chapter 4.1 --- Introduction --- p.86
Chapter 4.2 --- Materials and Methods --- p.87
Chapter 4.3 --- Results --- p.90
Chapter 4.4 --- Discussion --- p.94
Chapter CHAPTER5 --- THE SELECTIVE FEEDING BEHAVIOUR OF EARLY LIFE HISTORY STAGES OF Metapenaeus ensis
Chapter 5.1 --- Introduction --- p.109
Chapter 5.2 --- Materials and Methods --- p.110
Chapter 5.3 --- Results --- p.115
Chapter 5.4 --- Discussion --- p.117
Chapter CHAPTER6 --- CONCLUSION --- p.133
REFERENCES --- p.136
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Herrmann, Sebastian M. "SHRIMP Reports: Projektberichte und Begleitmaterialien aus dem Lehrinnovationsprojekt SHRIMP." 2020. https://ul.qucosa.de/id/qucosa%3A72272.
Повний текст джерелаАнотація:
Das Lehrinnovationsprojekt SHRIMP (Social Hypertext Reader & Interactive Mapping Platform) wurde 2015 am Institut für Amerikanistik der Universität Leipzig ins Leben gerufen. Ziel des Projekts ist es, das didaktische Potenzial von Social Hypertext zu erforschen und nutzbar zu machen. Mehr Informationen zum Projekt finden Sie online unter www.shrimpp.de. Die Reihe SHRIMP Reports enthält die im Rahmen des Projekts erstellten Berichte und andere Begleitmaterialien.
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LIN, ZHE-LI, and 林哲立. "Shrimp hepatopancreatic deoxyribonuclease." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/86809470599384296356.
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Burgett, Jeff M. "The digestion of microbial and detrital resources by an omnivorous shrimp, Penaeus vannamei Boone." Thesis, 1994. http://hdl.handle.net/10125/10338.
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Ye, Mei Jiao, and 葉美嬌. "Inhibitors of shrimp tyrosinase." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/33252504579669944262.
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CHEN, PO-CHANG, and 陳柏彰. "Knowledge Transfer and Innovation Diffusion in Shrimp Cultivation: A Case Study of Dr. Shrimp." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/kvtshv.
Повний текст джерелаАнотація:
碩士實踐大學
應用外語學系英語溝通碩士班
106
Aquatic technology in Taiwan has been notable in the world and was once honored as the “Empire of the Giant Tiger Prawn.” Due to virus infection, constant environmental changes, and unfriendly farming methods, aquatic technology has encountered a series of challenges. Both academia and industry have made efforts to re-gain Taiwan’s aquatic reputation. Though much research has been done to develop proper methods in aquatic cultivation, few studies actually focused on the cultivation of shrimp, and even fewer researchers discussed innovative and sustainable shrimp cultivation. Therefore, Dr. Shrimp, an organization which insists on innovative and eco-friendly methods of cultivation, was selected for this case study. This present study aimed to investigate how the founder of Dr. Shrimp transferred innovative and professional knowledge to his trainees, so as to achieve the healthy, non-toxic, ecofriendly and sustainable shrimp cultivation that Dr. Shrimp has consistently valued. There were five participants in this study, including the founder, one partner, two clients, and one intern. The data were collected from interview, observation, documents, and all the data were coded and analyzed using qualitative content analysis. The results of the study indicated that knowledge transfer in Dr. Shrimp had six phases: incentives, communication, acceptance, acquisition, execution, and diffusion. With professional knowledge and techniques as incentives, Dr. Shrimp successfully drew people to start the first step in shrimp cultivation. Then, the face-to-face intensive communication and the abundant open data helped partners and clients trust and accept Dr. Shrimp. While carrying out the acquired knowledge, those who joined Dr. Shrimp also helped promote the eco-friendly and sustainable cultivation valued by Dr. Shrimp. It is hoped that the findings can pave the way for other aquatic cultivation so as to promote sustainable cultivation in a more systematic way.
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Wilson, Keith 1974. "The shrimp: form, process, experience." Thesis, 2009. http://hdl.handle.net/2152/ETD-UT-2009-08-371.
Повний текст джерелаАнотація:
This report will summarize the process of developing, producing and finishing the short documentary film THE SHRIMP. Shot on HD video in Savannah, GA during the spring and summer of 2009, the film was produced as my Graduate Thesis Film in the Department of Radio-TV-Film at the University of Texas at Austin in partial fulfillment of my Master of Fine Arts in Film Production degree.text
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Lin, Yu-Cheng, and 林育丞. "Clouding Monitoring In Shrimp Aquaculture." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/n333j2.
Повний текст джерелаАнотація:
碩士國立高雄應用科技大學
電子工程系碩士班
104
The greatest aquaculture area in Republic of China is eastern and southern coastlands in Taiwan. Type of aquaculture includes various fishes, crustaceans and shellfishes. As time changes and technology developed, traditional aquaculture becomes automation gradually. Most aquaculture automatic control systems are customized personal computer control system which designed from industrial program control system (include sensor/signal transmitter, communication multiplexer, starter/output device, software and hardware). Control system designed by professional company which could enforce water quality management, reduce cost of manpower monitor, and decrease opportunity of serious failure. Establishing a monitor system spends great amount of money which general peasants cannot afford. A simple, convenient, and low cost monitor system used by general peasants could increase output and improve aquaculture development. The primary factor of aquaculture is steady water quality. In the process of aquatic product raising, water PH changed from remnant feed fodder and fish excrement. Sunshine can increase algae growth (both good and bad algae). Destructive algae massive growth impacts harvest of aquatic products. This research using Arduino mono-chip micro controller. sensor, WIFI module and personal computer which makes a simple and low cost wireless monitor system. It could monitor through smart phone connecting Cloud Platform. Algae growth can change water color in this system. Peasants could easily know the condition of aquatic product by color changing further increasing harvest.
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Martinez, Cordero Francisco Javier. "Regional economic planning of shrimp aquaculture in Mexico." 2003. http://proquest.umi.com/pqdweb?index=0&did=764745651&SrchMode=2&sid=4&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1233176604&clientId=23440.
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Chien, YuChun, and 簡聿君. "Effects of Vibrio harveyi on plasma of white shrimp, Litopenaeus vannamei and tiger shrimp, Penaeus monodon." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/85620443911590227502.
Повний текст джерелаАнотація:
碩士國立海洋大學
水產養殖學系
90
This thesis investigates the effects of bacterial cells, extracellular products (ECP) and partially purified protease of Vibrio harveyi, originally isolated from diseased tiger shrimp (Penaeus monodon), on plasma coagulogen of shrimps in vitro and in vivo, in order to further understand the pathogenesis and pathophysiological phenomenon caused by the Vibrio species. The ECP of V. harveyi was prepared and the toxic protease was partially purified. This partially-purified protease was a 22 kDa protein, determined by SDS-PAGE, exhibiting caseinolytic activity without boiling while it was a 38 kDa protein after boiling in sample buffer (contained 2-mercaptoethanol). On SDS-PAGE, the molecular weights of coagulogen and hemocyanin of white shrimp (Litopenaeus vannamei) and tiger shrimp found similar. In addition, the migration, molecular weights and immune cross-reactivity of coagulogen of both shrimp species were also found were similar. The effects of bacterial cells, ECP and partially purified protease of V. harveyi were investigated using crossed immunoelectrophoresis (CIE), SDS-PAGE and Western blotting. The results revealed that a fast- migrating phenomenon of plasma coagulogen in CIE gels could be observed after pre-incubation with partially purified protease. In addition to fast-migrating of plasma coagulogen, the hemocyanin was also affected after pre-incubation with the ECP. Plasma coagulogen was proven to be degraded into smaller molecular-weight proteins on Western blot, plasma coagulogen was not remarkably affected after pre-incubation with bacterial cells. However, the reduction of plasma protein content and coagulogen amount was determined when the shrimps were pre-injected with bacterial cells, ECP and partially purified protease, separately. As for the degree of reduction, the group pre-injected with ECP was the highest while that pre-injected partially purified protease was the second. The plasma coagulogen was degraded into 89 kDa and 43 kDa, and 80 kDa protein in white shrimp and tiger shrimp, respectively. The present results revealed that plasma components and blood clotting mechanism of shrimp could be affected by bacterial cells, ECP and partially purified protease. In particular, the plasma coagulogen was degraded. This is the first report which demonstrates that plasma coagulogen of shrimp is degraded when the animal is infected with V. harveyi leading to occurrence of unclottabe hemolymph. Meanwhile, the toxic protease may play a major role in the pathogenesis of V. harveyi infection.
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Miller, Paul John. "Development, environment and shrimp aquaculture: the emerging challenge of inland low-salinity shrimp culture in Thailand." Thesis, 2005. http://hdl.handle.net/1828/1946.
Повний текст джерелаАнотація:
Farm-raised marine shrimp are Thailand's most important agricultural export, earning $US 2.4 billion annually in revenues for the government. Thailand's experience with intensive shrimp culture spans almost two decades. First generation marine shrimp farms. located mostly in coastal areas. have given way to a second generation of shrimp farms located in freshwater and brackishwater areas. The success of these second generation farms is attributed to the discovery by farmers that they can successfully cultivate a marine species of shrimp under low-salinity conditions. The nature of this innovation. referred to as inland or low-salinity culture. has greatly increased the potential for establishing shrimp cultivation much further from the coast than previously believed possible. While there are still many coastal shrimp farms. the most significant industry expansion since the mid 1990s has occurred in the irrigated floodplain and delta of Thailand's central plain. The output from low-salinity shrimp culture in freshwater areas now accounts for a large and rising proportion of total Thai production. and is a significant component of world production.
This dissertation investigates the development of low-salinity shrimp culture in Thailand. The key findings were the firsthand documentation of the factors contributing to the development of low-salinity shrimp farming in freshwater environments. This study documents the innovations in hatchery and farming techniques. examines the development of the saltwater infrastructure required to sustain inland shrimp ponds. and identifies the land and water management challenges associated with low-salinity culture from both the government and producer perspective. The methodology adopted to achieve the research objectives consisted of secondary data review, farm and key informant surveys utilizing semi-structured interviews. informal interviews and discussions. and statistical description and analysis. The research was completed during four separate field investigations totaling ten months over an eight-year period from 1997 to 2004. Recommendations are offered to improve the environmental management of low-salinity shrimp culture.
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Meng-HsunTsai and 蔡孟勳. "Distribution and residue accumulation of oxytetracycline in shrimp farm and shrimp body: Method Development and Application." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/gdja66.
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50
林俊毅. "Economic Analysis of Sakura Shrimp Fishery." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/17884142701742792373.
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