Relevant bibliographies by topics / Aquaculture industries

Academic literature on the topic 'Aquaculture industries'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Aquaculture industries"

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Tumilar, Aldric S., Dia Milani, Zachary Cohn, Nick Florin, and Ali Abbas. "A Modelling Framework for the Conceptual Design of Low-Emission Eco-Industrial Parks in the Circular Economy: A Case for Algae-Centered Business Consortia." Water 13, no. 1 (December 31, 2020): 69. http://dx.doi.org/10.3390/w13010069.

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This article describes a unique industrial symbiosis employing an algae cultivation unit (ACU) at the core of a novel eco-industrial park (EIP) integrating fossil-fuel fired power generation, carbon capture, biofuel production, aquaculture, and wastewater treatment. A new modelling framework capable of designing and evaluating materials and energy exchanges within an industrial eco-system is introduced. In this scalable model, an algorithm was developed to balance the material and energy exchanges and determine the optimal inputs and outputs based on the industrial symbiosis objectives and participating industries. Optimizing the functionality of the ACU not only achieved a substantial emission reduction, but also boosted aquaculture, biofuel, and other chemical productions. In a power-boosting scenario (PBS), by matching a 660 MW fossil fuel-fired power plant with an equivalent solar field in the presence of ACU, fish-producing aquaculture and biofuel industries, the net CO2 emissions were cut by 60% with the added benefit of producing 39 m3 biodiesel, 6.7 m3 bioethanol, 0.14 m3 methanol, and 19.55 tons of fish products annually. Significantly, this article shows the potential of this new flexible modelling framework for integrated materials and energy flow analysis. This integration is an important pathway for evaluating energy technology transitions towards future low-emission production systems, as required for a circular economy.
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Sarker, Biddut, Md Abdul Baten, Md Eqram-Ul Haque, Alok Das, Ahmed Hossain, and Md Zahedul Hasan. "Heavy Metals’ Concentration in Textile and Garments Industries’ Wastewater of Bhaluka Industrial Area, Mymensingh, Bangladesh." Current World Environment 10, no. 1 (April 30, 2015): 61–66. http://dx.doi.org/10.12944/cwe.10.1.07.

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An investigation was made to ascertain heavy metals concentration in effluent samples collected from textile industries located at Bhaluka industrial area, Mymensingh, Bangladesh during August to November, 2013. Atomic absorption spectrometer (AAS) was used to evaluate the concentration of Zinc (Zn), Copper (Cu), Nickel (Ni), Cadmium (Cd), Chromium (Cr) and Lead (Pb) in the samples. The study revealed that heavy metals were present in variable amounts, where the concentrations of Cu (0.0405 ppm) and Pb (0.0003 ppm) were found lower than recommended level for industrial waste water. Among the present trace metals, the highest concentration (0.2-1.0 ppm) was found in Zn. Although the concentration is suitable for irrigation, it is unsafe for aquaculture. Besides, all of the wastewater samples possessed no Cr, Cd and Ni, which comprised less of the minimum acceptance level, indicating no possibility of contamination. However, comparing findings of this study with the safe limits for industrial wastewater, it can be concluded that the waste water of the study area except some sampling sites can be used for irrigation and aquaculture.
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Gribben, Paul E., and Kevin G. Heasman. "Developing Fisheries and Aquaculture Industries forPanopea zelandicain New Zealand." Journal of Shellfish Research 34, no. 1 (March 2015): 5–10. http://dx.doi.org/10.2983/035.034.0103.

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Gautam, Aditi, Asuda Sharma, Sarika Jaiswal, Samar Fatma, Vasu Arora, M. A. Iquebal, S. Nandi, et al. "Development of Antimicrobial Peptide Prediction Tool for Aquaculture Industries." Probiotics and Antimicrobial Proteins 8, no. 3 (May 3, 2016): 141–49. http://dx.doi.org/10.1007/s12602-016-9215-0.

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Boison, Joe O., and Sherri B. Turnipseed. "A Review of Aquaculture Practices and Their Impacts on Chemical Food Safety from a Regulatory Perspective." Journal of AOAC INTERNATIONAL 98, no. 3 (May 1, 2015): 541–49. http://dx.doi.org/10.5740/jaoacint.15-033.

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Abstract Aquaculture is currently one of the most rapidly growing food production industries in the world. The increasing global importance for this industry stems primarily from the fact that it is reducing the gap between the supply and demand for fish products. Commercial aquaculture contributes significantly to the economies of many countries since high-value fish species are a major source of foreign exchange. This review looks at the aquaculture industry, the issues raised by the production of fish through aquaculture for food security, the sustainability of the practice to agriculture, what the future holds for the industry in the next 10-20 years, and why there is a need to have available analytical procedures to regulate the safe use of chemicals and veterinary drugs in aquaculture.
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Khudyi, Oleksii, Mykhailo Marchenko, Larysa Cheban, Lidiia Khuda, Olga Kushniryk, and Iryna Malishchuk. "Recirculating Aquaculture Systems Waste Water as a Medium for Increase of Phytoplankton and Zooplankton Biomass." International Letters of Natural Sciences 54 (May 2016): 1–7. http://dx.doi.org/10.18052/www.scipress.com/ilns.54.1.

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The results of using the waste water from recirculating aquaculture system for phyto- and zooplankton cultivation are presented in the article. The physico-chemical parameters of the aquaculture system’s waste water and comparative culture media were recorded during hydrobionts cultivation. The indicators of productivity and the biochemical composition of investigated cultures were determined. The biochemical analysis of studied cultures included the investigations of the content of total proteins, lipids, carbohydrates, carotenoids and photosynthetic pigments. Using aquaculture system’s waste water as a medium for the cultivation of phyto- and zooplankton can significantly reduce the cost of technology for live feed biomass increase in the aquaculture industries.
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Khudyi, Oleksii, Mykhailo Marchenko, Larysa Cheban, Lidiia Khuda, Olga Kushniryk, and Iryna Malishchuk. "Recirculating Aquaculture Systems Waste Water as a Medium for Increase of Phytoplankton and Zooplankton Biomass." International Letters of Natural Sciences 54 (May 11, 2016): 1–7. http://dx.doi.org/10.56431/p-w7i7rc.

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The results of using the waste water from recirculating aquaculture system for phyto- and zooplankton cultivation are presented in the article. The physico-chemical parameters of the aquaculture system’s waste water and comparative culture media were recorded during hydrobionts cultivation. The indicators of productivity and the biochemical composition of investigated cultures were determined. The biochemical analysis of studied cultures included the investigations of the content of total proteins, lipids, carbohydrates, carotenoids and photosynthetic pigments. Using aquaculture system’s waste water as a medium for the cultivation of phyto- and zooplankton can significantly reduce the cost of technology for live feed biomass increase in the aquaculture industries.
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Lauth, Xavier, John Buchanan, and Keith Hansen. "Efficient Targeted Genome Editing for Finfish Aquaculture and Other Industries." Industrial Biotechnology 8, no. 3 (June 2012): 90–93. http://dx.doi.org/10.1089/ind.2012.1520.

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Yuan, Jing, Chuansong Liao, Tanglin Zhang, Chuanbo Guo, and Jiashou Liu. "Advances in Ecology Research on Integrated Rice Field Aquaculture in China." Water 14, no. 15 (July 28, 2022): 2333. http://dx.doi.org/10.3390/w14152333.

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Integrated rice field aquaculture, a practice normally used by rural small-scale farmers, is not only supporting farms and livelihoods but is also reducing poverty and is playing a more and more important role in China. It is also becoming one of the main freshwater aquaculture systems, in addition to ponds, lakes, reservoirs, streams, and other aquaculture systems. During the past 40 years, both the production and areas of integrated rice field aquaculture in China have significantly increased from 0.13 million t and 0.74 million ha in 1990 to 3.25 million t and 2.56 million ha in 2020, respectively. Advances in ecology research on integrated rice–fish aquaculture were one of the main contributors to this achievement. In this paper, we systematically reviewed the advances in ecology research on three major integrated rice field aquaculture systems in China, namely rice–fish, rice–crab, and rice–crayfish coculture systems, the contribution of the research, and future prospects. We found that progress in ecology research on theories, biological studies, models, and eco-engineering techniques, coupled with policy support promoted the development of the rice field aquaculture industries. This review could assist individual small-scale farmers to make better use of rice field space to produce safer aquatic and rice products at a lower cost and help aquaculture scientists to further study the ecology of integrated rice field aquaculture systems.
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Bharti, Pawan Kr, and Pawan Kumar. "Seed germination of wheat (Triticum aestivum) and the effect of textile industrial effluents on radical and hypocotyls lengths." Environment Conservation Journal 13, no. 1&2 (June 18, 2012): 39–41. http://dx.doi.org/10.36953/ecj.2012.131207.

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Textile industries consume high quantity of water and release it as toxic effluents after some colouring processes. However, some wastewater may be recycled as fertilizers in aquaculture and agriculture, horticulture after dilutions. But industrial effluent of synthetic products like azo dyes may be harmful for germination and growth performance of crop seeds. The present paper deals with the physico-chemical parameters of textile industrial effluents and its impacts on germination and growth performance of Wheat, Triticum aestivum (Family: Gramineae/ Poaceae). Seeds were found more tolerant against 25% concentrated effluent.
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Dissertations / Theses on the topic "Aquaculture industries"

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Muhoozi, Levi Ivor. "Exploitation and management of the artisanal fisheries in the Ugandan waters of Lake Victoria." Thesis, University of Hull, 2002. http://hydra.hull.ac.uk/resources/hull:3549.

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The fisheries resources of Lake Victoria support the livelihoods to the lakeside rural communities and are vital to the economies of Kenya, Tanzania and Uganda, especially through fish exports. Management decisions to enable long-term sustainable exploitation of these fisheries require appropriate knowledge of the fishing effort and catch statistics, as these are pertinent for evaluating the fish stocks and future prospects of the fishery. Catch assessment programmes in the Ugandan part of the lake, which should provide this type of information, collapsed in the late 1980s. This study evaluated the current status of fishing effort and fish catches and their implications for the management of the fisheries in the Ugandan part of Lake Victoria. Historical trends in fishing effort and fish catches, total fishing effort in 1990 and 2000, and the current status of fish catch-effort, in the Ugandan part of the lake, were examined.
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Malleret-King, Delphine. "A food security approach to marine protected area impacts on surrounding fishing communities : the case of Kisite Marine National Park in Kenya." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/2923/.

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Marine Protected Areas (MPAs) have been suggested as one of the solutions to coral reef fisheries management. It is thought that their effects on biomass, species diversity and habitat could improve surrounding fisheries yields through fish migration and increased recruitment. However, MPAs' benefits on surrounding fisheries are difficult to establish due to the lack of historical data. Furthermore, the lack of involvement of stakeholders have led to a number of failures. MPAs in the form of No Take Zones (NTZ), which aim to promote the sustainable use of fisheries resources, might contribute to the successful management of coral reef fisheries. However, few studies have considered their benefits from the point of view of surrounding fishing communities. It is evident that if stakeholders are to be further involved in MPA management, they need to perceive the benefits. The hypothesis tested was that if NTZs are of benefit to surrounding communities, their food security situation would be improved. The fieldwork was carried out in Southern Kenya with five fishing communities located around a long established MPA. The study showed that a range of food security indicators gave good information on MPAs' benefits to the surrounding communities. It was found that these benefits were highly affected by distances. Thus, although fishing households were the least food secure, they were better off if they fished nearer the protected reefs. Households dependent on MPA-related tourism were the most food secure but this dependency decreased with the communities' distance from the main tour operators. The results showed that MPAs' benefits were not equally shared by the communities bearing most of the costs. In addition, it was also found that tourism seasonality does not always compensate for the seasonality of other activities. Furthermore, tourism could not be assumed to develop around MPAs and provide reliable alternative employment.
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Vaterlaus-Staby, Claire F. "An Analysis of the Potential Environmental Remediation and Economic Benefits Anaerobic Digesters Offer to the Dairy and Swine Industries: A Comparison of China and the U.S." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:24078369.

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The purpose of this research is to investigate the environmental remediation and energy potential of anaerobic digesters on pig and dairy farms and to demonstrate how incorporating those benefits into a cost-benefit analysis would make biodigester projects more financially feasible. By assigning dollar values to the emissions and water pollution avoided by this technology, I sought to update the traditional cost-benefit analyses (CBAs) to demonstrate that this technology is more widely applicable. The study took place In the Lake Champlain Drainage Basin, USA and the Lake Tai Drainage Basin, China. Dairy and pork production are high density endeavors and produce large quantities of waste which make them ideal candidates for biodigesters. Using standard emissions estimates and gas production rates from past research and from the current Cow Power Program in Vermont, the methane and nitrous oxide emissions averted by adding a biodigester to a particular farm were estimated. Additionally, using past research, the total nitrogen and phosphorous collected by the biodigesters and diverted from becoming classified as non-point source pollution was calculated, valued, and incorporated into a CBA tool. The results from this study show that the incorporation of environmental benefits in a CBA for Green Mountain Dairy increased profitability by 60% and reduced the payback period by two years. Overall, projects that include environmental benefits are 72% more profitable and the payback period is cut in half. Further development of the CBA tool is needed to strengthen results. This study points to the need for more experimental data on the environmental benefits of biodigesters.
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Hagström, Madicken. "The industries’ effect on the indigenous people in Chile : A discourse analysis of the Corporate Social Responsibility policies in the aquaculture and forestry sectors in Chile." Thesis, Uppsala universitet, Teologiska institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353439.

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The purpose of this study is to investigate how the rights of the indigenous people are being affected because of the forest and salmon industries surrounding them. The question of the thesis is “How do the companies (multinational and national) in Chile discursively construct themselves as responsible actors in the local communities through their CSR profiles on their webpages?” Through the CDA approach of Fairclough’s three-stage model, I want to analyse the language and how the companies promote themselves as sustainable through their CSR profiles. The intention was to illustrate how certain interpretative repertoires can serve to legitimise or reproduce certain structures. The companies construct themselves by presenting themselves through different discourses. The prominent discourses presented on the webpages are all part of the companies’ strategies to construct a reality tailored to fit the companies’ needs. The point is that the industries are still problematic, and they create issues by consuming the native forests and by the use of different chemicals and antibiotics. They have still not solved how to be global actors and have less impact on the surroundings at the same time. There is also a people-policy gap where the indigenous people do not seem to be part of the policy-making processes. This gap creates power imbalances and the gap keeps growing when the local communities do not have a chance to affect the policies and political processes.
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Djama, Theodore. "Interactions between the artisanal and the industrial fisheries of Cameroon." Thesis, Bangor University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332405.

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Du, Plessis Jan-Paul. "The Purification Works." Diss., University of Pretoria, 2018. http://hdl.handle.net/2263/63619.

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This dissertation aims to propose an appropriate architectural intervention within a site that requires both ecological restitution and the commemoration of industrial heritage. The Johannesburg Gasworks site serves as a clear example of how the Industrial Revolution and subsequent industrial technologies have both damaged the natural environment and left blighted legacies within ever developing urban conditions.The project aims to uphold the general significance of Industrial heritage as proposed by charters such as the Nizhny Tagil charter prepared by The International Council for the Commemoration of Industrial Heritage as well as the unique heritage significance of the Gasworks site. An appropriate theoretical framework and precedents are explored that reconcile the two seemingly opposing requirements of post-industrial sites - that of commemoration and ecological restitution. In post-industrial sites scarred by water, soil and air pollution, as well as dangerous or inaccessible places, maintaining an appreciation of heritage whilst employing the various rehabilitative actions required need to be balanced to ensure both. The project undertaken forms part of four schemes proposed for the site that aim to maintain the iconic identity of the Johannesburg Gasworks by proposing ecologically sensitive industries. These industries and interventions within the site aim to bring about urban resilience, site specific environmental rehabilitation as well as integration with the surrounding urban context. The proposed project for the site draws its program from global ecological issues as well as site specific heritage factors. The aim of scripting a new layer of intervention onto the Gas Works site is to make a legible reading between the site’s history and its ecologically resilient future legacy.
Mini Dissertation MArch(Prof)--University of Pretoria, 2018.
Architecture
MArch(Prof)
Unrestricted
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Sadek, Shérif S. "Mise au point de techniques de production de la crevette d'eau douce (macrobachium rosenbergii de Man) en monoculture et polyculture en Égypte : avec approche des critères économiques." Toulouse, INPT, 1998. http://www.theses.fr/1998INPT004A.

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L'elevage des crevettes d'eau douce (macrobrachium rosenbergii) est relativement recent en egypte (10 ans). Cette activite est orientee vers l'amelioration de l'elevage en etangs et en rizieres, afin d'augmenter les rendements faibles de la pisciculture egyptienne et d'ameliorer la rentabilite des projets piscicoles. Notre travail a consiste d'abord a etudier l'elevage de la crevette d'eau douce en monoculture et polyculture avec les oreochromis niloticus et cyprinus carpio, dans des etangs d'eau douce. En monoculture les conditions optimales serait d'utiliser des juveniles a raison de 5 individus/m#2 afin d'obtenir une production de crevettes sans pinces, avec un rendement d'environ 1. 400 kg/ha. En polyculture, les crevettes peuvent etre elevees a densite importante de poissons 2,5 poisson/m#2, pour obtenir une production globale de 3. 700 kg/ha (poissons et crevettes). En monoculture ou polyculture, nous avons ensuite cherche a utiliser l'eau saumatre usee d'agriculture pour elever les crevettes d'eau douce (m. Rosenbergii), les peneides (penaeus semisulcatus) avec les tilapias rouges de floride. Les resultats montrent que la croissance, le taux de survie et le rendement sont faibles en monoculture et polyculture pour ces trois especes probablement a cause de la salinite insatisfaisante des eaux de drainage dans le delta du nil. En monoculture en eau saumatre, l'elevage de crevette d'eau douce suivi de peneide enregistre en eau saumatre une production de 564 et 284 kg/ha respectivement. En culture mixte, la production totale des 2 especes de crustaces elevees ensemblent est de 457 kg/ha (51% crevette d'eau douce et 49% crevette d'eau marine). Si l'on ajoute des poissons a l'elevage la production passe a 786 kg/ha : 30% crevette d'eau douce, 19% crevette d'eau marine et 51% tilapia rouge de floride. Au plan economique l'estimation du profit annuel maximum par hectare de la ferme de nozha hydrodrome est obtenue en elevant des crevettes d'eau douce en monoculture a une densite de 5 juveniles/m#2. Elle donne un benefice moyen d'environ 7. 100 $$us et un taux de retour de 58%. Cette etude presente egalement les resultats economiques de l'elevage en riziere de crevettes et de tilapia dans le contexte de l'egypte. L'introduction de 2 juveniles de m. Rosenbergii/m#2 en riziculture permet donc de multiplier par 5 le revenu net de la riziculture traditionnel : 4. 500 $$us contre 900 $$us. L'interet economique, de cette espece pour l'egypte est donc clairement demontre.
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de, Souza Queiroz Luciana. "Industrial shrimp aquaculture and mangrove ecosystems: A multidimensional analysis of a socio‐environmental conflict in Brazil." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/286034.

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En los últimos 40 anos, la acuicultura industrial de camarones (la camaronicultura) se ha desarrollado con el incentivo de los gobiernos, agencias de desarrollo e Instituciones Financieras Internacionales (IFIs) – como el Banco Mundial y el Fondo Monetario Internacional –, la Organización de las Naciones Unidas para la Alimentación y la Agricultura (FAO) e industria agroalimentaria como medio para alcanzar un crecimiento económico basado en las exportaciones de grandes volúmenes de alimentos, disminuyendo la presión sobre las poblaciones salvajes marinas, aliviando de este modo la pobreza en los países en desarrollo. El fuerte apoyo político, económico y la permisividad legislativa, impulsó esta actividad económica que en un breve periodo de tiempo ha tenido un vertiginoso crecimiento. Esta actividad generó crecientes críticas por sus consecuencias, incluida la conversión y la expropiación de tierras húmedas como los manglares, causando la disminución del flujo de los servicios ecosistémicos generados para la humanidad en general y para las comunidades locales en particular. La acuicultura industrial ha convertido un gran porcentaje de los territorios costeros de los países tropicales en vías de desarrollo en fincas para cultivo de camarones para la exportación. Esta situación se ha traducido en numerosos conflictos en todo el mundo, donde las poblaciones locales han elegido desafiar los procesos de acumulación por desposesión y se organizan para resistir, dando lugar a conflictos socioambientales cada vez más apoyados por organizaciones y movimientos de Justicia Ambiental. Durante las últimas décadas, un caso particular de este conflicto se ha desarrollado en zona costera de Brasil, donde un gran porcentaje de los manglares, se han deforestado para el desarrollo de la acuicultura del camarón. Frente a este contexto, la presente tesis pretende arrojar luz y analizar la degradación ambiental y el conflicto socioambiental causado por la acuicultura industrial de camarones en Brasil desde la perspectiva de la Ecología Política, buscando vincular diferentes niveles de análisis - local, nacional y mundial - en distintas dimensiones claves para su comprensión: político-ambiental, social y económica. La dimensión político-ambiental, revela la trayectoria de privatización de los ecosistemas costeros por la acuicultura industrial de los camarones a partir de un diagnóstico de los impactos socioambientales en la cuenca del río Jaguaribe (Ceará, Brasil) y su estrecha relación con el contexto político y económico del desarrollo nacional del camaroneo. La dimensión social, a partir de la percepción comunitaria de los pescadores y de la combinación de metodologías sociales (observación participante, free listings, grupos focales, encuestas, seguimientos, etc.), demuestra que más allá de una vinculación material, existe una vinculación simbólica entre los servicios que proporcionan los manglares y el bienestar de las comunidades de pescadores, factores no considerados por los diferentes estamentos que toman decisiones a diversos niveles. Por último, la dimensión económica, a partir de un seguimiento a dos comunidades de pescadores (Cumbe y Curral Velho, en Ceará, Brasil), determina la viabilidad económica y principios de solidaridad tradicional colectiva que se basan la pesca artesanal y su incompatibilidad con la camaronicultura, direccionada a la acumulación de bienes e ingresos. Este análisis multidimensional concluye que el desarrollo de la acuicultura del camarón en Brasil, ha venido acompañado por una huella de profunda transformación de los recursos naturales causando la degradación de los ecosistemas, poniendo en peligro la seguridad y soberanía alimentaria y causando el empobrecimiento de las comunidades tradicionales. Un combinado que ha promovido un grave conflicto socioambiental, que se repite en las zonas tropicales de los países en vías de desarrollo de Asia, América Latina y África. Las herramientas construidas pueden ser extrapoladas a otros sistemas para ayudar a entender y resolver otros conflictos socioambientales, aportando informaciones multidimensionales a los procesos de toma de decisión para una gestión sostenible e integrada de la zona costera.
In the past 40 years, industrial shrimp aquaculture developed with economic incentives from governments, public and private agencies and International Financial Institutions (IFIs) - including the World Bank, the International Monetary Fund, the Food and Agriculture Organization of the United Nations (FAO) and the food industry. The target was achieving economic growth based on exports of large volumes of food, reducing the pressure on marine wildlife populations and thereby alleviating the poverty in developing countries. Extensive political and economic aid along with legislative permissiveness has promoted this economic activity which, growning exponentially in a short period of time. This fast growth of industrial shrimp farming has generated increasing criticism due to its consequences, which include the conversion and expropriation of wetlands such as mangroves, causing a decreasing flow of ecosystem services available for society in general and local communities in particular. The aquaculture industry has converted a high percentage of coastal areas of developing tropical countries into properties for shrimp farming for export. This situation has resulted in numerous conflicts around the world, where local people have chosen to challenge the processes of accumulation by dispossession and have organized to resist, leading to environmental struggles which have been increasingly supported by organizations and movements demanding environmental justice. During the last few decades, a particular example of this conflict has developed in coastal area of Brazil, where a large percentage of mangroves areas have been deforested for the development of shrimp aquaculture. This thesis aims to clarify and analyze the environmental degradation and socio-environmental conflict caused by industrial shrimp farming in Brazil from the perspective of political ecology, seeking to link different levels of analysis - local, national and global - in several key dimensions to achieve a political and environmental, a social and an economic understanding. The political and environmental dimension illustrates the history of privatization of coastal ecosystems by industrial shrimp aquaculture with a diagnosis of the social and environmental impacts on the Jaguaribe river basin (Ceará, Brazil), and its close relationship with the political and economic context of national shrimp industry development. The social dimension is analyzed making and approach to the community perception of the fishermen, employing a combination of social methodologies (participant observation, free listings, focus groups, surveys, monitoring, etc.) which have shown that, beyond the physical link, there is a symbolic relationship between the services provided by mangroves and the welfare of fishing communities. This factor is not considered by decision makers at various levels. Finally, the economic dimension, studied via a monitoring of two fishing communities (Cumbe and Curral Velho in Ceará, Brazil), shows the collective economic viability and the traditional principles of solidarity that the artisanal fisheries are based on. It also demonstrates their incompatibility with shrimp aquaculture dedicated to the accumulation of assets and income. This multidimensional analysis concludes that the impact of the development of shrimp aquaculture in Brazil, has a profound transformation of natural resources causing degradation of ecosystems, threatening food security and sovereignty and causing the impoverishment of traditional communities. This combination of effects caused a serious socio-environmental conflict, repeated in the tropics of the developing countries of Asia, Latin America and Africa. The investigative tools developed in this study can be easily extrapolated to other systems such as aiding in the understanding and solving of other environmental conflicts, providing multidimensional information to the decision-making processes to achieve a sustainable and integrated management of coastal areas.
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Jaouen, Pascal. "Etude des techniques de separation par membrane dans le domaine des peches et des cultures marines : recuperation de proteines solubles de poisson par ultrafiltration, concentration de microalgues marines par microfiltration tangentielle." Nantes, 1989. http://www.theses.fr/1989NANT2003.

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Etude, sur plus de 20 membranes, performances de l'unite d'ultrafiltration pour la fabrication du surimi. Recherche des conditions optimales et application en site industriel. Etude de la concentration du phytoplancton par microfiltration, en conservant la viabilite des cellules. Essais sur site aquacole, mise au point des conditions operatoires: point de coupure et configuration de la membrane, vitesses tangentielles et pressions transmembranaires
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Laranjeira, Roberto Ribeiro. "Controlo remoto e autónomo de um sistema de aquacultura." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/15598.

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Mestrado em Engenharia de Automação Industrial
Esta dissertação apresenta um sistema de aquacultura que possibilita a sua monitorização e o seu controlo autónomo. O sistema é capaz de ler grandezas como nível, pH, luminosidade, pressão e temperatura, e, posteriormente, ativar ou desativar os atuadores, como as eletroválvulas e as bombas peristálticas, até que se encontrem os valores pretendidos. O GSM é uma parte relevante do sistema desenvolvido, que permite uma interação à distância com o sistema, utilizando um telemóvel. Em qualquer momento, o utilizador pode pedir informações ao sistema, através de uma solicitação efetuada por mensagem de texto. As informações requeridas podem ser relativas ao estado dos atuadores e aos valores que os sensores apresentam. O utilizador pode, ainda, modificar o estado de um atuador, através de mensagem de texto enviada para o sistema. A resposta ao utilizador é uma mensagem com a verificação do que foi pedido. O sistema permite também ser configurado através de mensagem de texto, definindo os limites de cada parâmetro. Tem, ainda, a capacidade de enviar alertas, via mensagem de texto, quando algum valor estiver fora do pretendido. Apresenta uma aplicação em Visual Basic, que permite interagir com o sistema, controlar os limites e os atuadores, visualizar os alertas emitidos e registá-los em base de dados, para guardar o historial e compreender o comportamento através de gráficos.
This dissertation presents a system that enables its aquaculture monitoring and autonomous control. The system is capable of acquire readings such as pH, light, pressure, and temperature, and then of enabling or disabling the actuators, solenoid valve and peristaltic pump, until they meet the desired values. The GSM is an important part of the developed system, which also allows for remote interaction with the system using a mobile phone. The user can request information from the system, any time, through a request made by text message. The information required to the system can be related to the state of the actuators and the sensors values. The user can also modify the state of an actuator, by sending a text message to the system. The answer to the user is a message with the verification values of the request. The system also allows it to be configured via text message, defining the limits of each parameter. It also has the ability to send an alert via text message when any value is outside the established limits. The system presents a Visual Basic application enabling users to interact with the system, to control limits and actuators, to view alerts, to register in the database to keep a record log and to visualize the behavior through graphs.
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Books on the topic "Aquaculture industries"

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Kwamena, Quagrainie, ed. Aquaculture marketing handbook. Ames, Iowa: Blackwell Pub. Professional, 2006.

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A, Clonts Howard, ed. Economics of aquaculture. New York: Food Products Press, 1993.

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A, Clonts Howard, ed. Economics of aquaculture. New York: Food Products Press, 1993.

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Marine aquaculture: Opportunities for growth. Washington D.C: National Academy Press, 1992.

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Johnston, Gavin. Arctic charr aquaculture. Oxford: Fishing News Books, 2002.

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Consultants, Canadian Fishery. Energy efficiency for the Canadian seafood processing and aquaculture industries. Ottawa: The Division, 1994.

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Côte d'Ivoire. République de la Côte d'Ivoire, union-discipline-travail. Ministère d'Etat, Ministère du Plan et du Dèveloppement. Image économique des entreprises en 2005: Pêche, pisciculture, aquaculture. Abidjan: Institut national de la statistique, 2008.

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Culver, Keith Charles, and David Castle. Aquaculture, innovation and social transformation. Dordrecht: Springer, 2008.

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Aquaculture economics and financing: Management and analysis. Ames, Iowa: Wiley-Blackwell, 2010.

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Ridler, Neil B. Promotion of sustainable commercial aquaculture in sub-Saharan Africa. Rome: Food and Agriculture Organization of the United Nations, 2001.

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Book chapters on the topic "Aquaculture industries"

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Roy, Glenn M. "Aquaculture." In Activated Carbon Applications in the Food and Pharmaceutical Industries, 43–45. New York: Routledge, 2023. http://dx.doi.org/10.1201/9781315136592-4.

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Bardócz, Tamás, Henrice Jansen, Junning Cai, José Aguilar-Manjarrez, Sara Barrento, Shane A. Hunter, and Marnix Poelman. "Aquaculture." In Building Industries at Sea - ‘Blue Growth’ and the New Maritime Economy, 11–37. New York: River Publishers, 2022. http://dx.doi.org/10.1201/9781003337430-3.

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Chen, Yu-Hui, Wu-Chung Lee, and I. Chiu Liao. "Sustainable Development of Eel Aquaculture Industries in Taiwan and Mainland China." In Species and System Selection for Sustainable Aquaculture, 295–312. Ames, Iowa, USA: Blackwell Publishing, 2007. http://dx.doi.org/10.1002/9780470277867.ch20.

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Hobday, Alistair J., Rodrigo H. Bustamante, Anna Farmery, Aysha Fleming, Stewart Frusher, Bridget S. Green, Lilly Lim-Camacho, et al. "Growth opportunities for marine fisheries and aquaculture industries in a changing climate." In Applied Studies in Climate Adaptation, 139–55. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118845028.ch16.

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Murphy, Jennifer N., and Francesca M. Kerton. "Characterization and Utilization of Waste Streams from Mollusc Aquaculture and Fishing Industries." In Fuels, Chemicals and Materials from the Oceans and Aquatic Sources, 189–227. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119117193.ch8.

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Castex, Mathieu, Henri Durand, and Bernadette Okeke. "Issues with Industrial Probiotic Scale-up." In Aquaculture Nutrition, 347–59. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118897263.ch13.

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Quarto, Alfredo, and Sara Lavenhar. "Industrial Aquaculture: Human Intervention in Natural Law." In International Food Law and Policy, 895–928. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-07542-6_37.

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Njinju, Symon M., Joseph Onyango Gweyi, and Rose N. Mayoli. "Drought-Resilient Climate Smart Sorghum Varieties for Food and Industrial Use in Marginal Frontier Areas of Kenya." In Agriculture, Livestock Production and Aquaculture, 33–44. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93262-6_3.

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Tepe, Yalçın, and Fulya Aydın Temel. "Treatment of Effluents from Fish and Shrimp Aquaculture in Constructed Wetlands." In Constructed Wetlands for Industrial Wastewater Treatment, 105–25. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119268376.ch5.

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Chen, Sirui. "Screening of nitrogen removal bacteria and its application in aquaculture wastewater treatment." In Advances in Applied Chemistry and Industrial Catalysis, 483–91. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003308553-72.

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Conference papers on the topic "Aquaculture industries"

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Kerton, Francesca M., Yi Liu, Jennifer N. Murphy, and Kelly Hawboldt. "Renewable resources from the oceans: Adding value to the by-products of the aquaculture and fishing industries." In OCEANS 2014. IEEE, 2014. http://dx.doi.org/10.1109/oceans.2014.7002983.

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Li, L., M. Collu, C. Ruzzo, G. Failla, K. A. Abhinav, and F. Arena. "Analysis of the Coupled Dynamics of an Offshore Floating Multi-Purpose Platform: Part A — Rigid Body Analysis." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96212.

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Abstract A multi-purpose platform (MPP) is an offshore system designed to serve the purposes of more than one offshore industry. Indeed, over the past decades, a number of industries have expanded, or are expanding, from onshore to offshore locations (renewables, aquaculture, tourism, mineral extractions, etc.), and the research on these type of platform is increasing. In the present work, a MPP able to accommodate wind turbines, wave energy converters, and aquaculture systems are considered. This work presents the first part (Part A) of the analyses of the dynamics of the floating support structure for this MPP, focusing on the rigid body dynamic response, while its complementary hydroelastic analysis is presented in Part B (OMAE2019-96282). The aim here is to assess the dynamic response of the platform with respect to the preliminary requirements imposed by the wind turbine, the aquaculture system, and the other ancillary systems. After describing the platform analyzed, and explaining the aero-hydro coupled model of dynamics approach adopted, two independent analyses are conducted, one using the SESAM package by DNV-GL, and another using ANSYS AQWA, in order to verify the results, in absence of experimental data. Considering a severe, but still operational, load case, the preliminary results seem to demonstrate that the chosen platform can satisfy the dynamics constraints imposed by the payload systems.
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Holmen, Ingunn Marie, Trine Thorvaldsen, and Karl Gunnar Aarsæther. "Development of a Simulator Training Platform for Fish Farm Operations." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62023.

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The Norwegian aquaculture industry is accident prone compared to other industries and employees report a high number of near-accidents. Furthermore, escape of fish is a challenge for the industry. There is a potential for increased safety for both humans and fish if operators can practice operations in a safe environment. Existing simulators are not suited for this context. This paper presents results from a research and development project aimed at developing a realistic simulator-based training platform for demanding fish farm operations. Three objectives guided the development process. First, a description of operations, aimed at identifying challenges and training needs, which formed the basis for selecting training scenarios well suited for aquaculture. Second, the development of mathematical models that could be used in the simulator were developed, and finally, a curriculum for training course modules to complete the platform. Platform thus points to the integration of the simulator and the practical and theoretical education of operators. In this article, the first and second part of the process are presented and discussed.
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Nguyen, Henry, Ali Md Alikat, Dongho Lee, and Haiying Shi. "Developing High Yielding Soybean Varieties with Desirable Carbohydrate Fraction for Enhancing Nutrition." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/equd9211.

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Soybean is the major seed oil and protein crop in the global market. The majority of soybean protein meal in the U.S. is used for feeding poultry and pigs. Raffinose family of oligosaccharides (RFOs) in soybean meal reduce feeding efficiency due to their anti-digestibility in monogastric animals. Current commodity soybeans do not have desirable carbohydrate fraction; thus, the development of new and improved varieties with reduced RFOs and increased sucrose is of great interest and adds value to the swine, poultry, and aquaculture industries. This presentation will summarize current progress in soybean breeding and the discovery of novel genetic resources which provide a great opportunity for improving the carbohydrate composition of US soybeans in all major maturity groups.
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Ruzzo, C., G. Failla, F. Arena, M. Collu, L. Li, and A. Mariotti. "Analysis of the Coupled Dynamics of an Offshore Floating Multi-Purpose Platform: Part B — Hydro-Elastic Analysis With Flexible Support Platform." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96282.

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Abstract A multi-purpose platform (MPP) is an offshore system designed to serve the purposes of more than one offshore industry. Indeed, over the past decades, a number of industries have expanded, or are expanding, from onshore to offshore locations (renewables, aquaculture, tourism, mineral extractions, etc), and the research on these type of platform is increasing. In the present work, a MPP able to accommodate wind turbines, wave energy converters, and aquaculture systems is considered. For an overview of the MPP platform considered and its research context, please refer to the EU H2020 project overview (OMAE 2019-96104). This work presents the second part (Part B) of the analyses of the dynamics of the floating support structure for this MPP, focusing on the hydro-elastic analysis, while its complementary rigid-body hydrodynamic analysis is presented in Part A (OMAE2019-96212). The aim here is to assess if the support platform structural elasticity has a substantial impact on the dynamic response of the platform. A beam model and a 3D solid model of the support structure have been developed, and the inertial forces, hydrodynamic added mass forces, hydrostatic and mooring restoring forces have been considered in the hydro-elastic analyses performed. The results show that the dynamic response to the wave loads is not substantially influenced by the elasticity of the support structure, and that, at first approximation, a rigid-body approach is acceptable.
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Pettersen, Sigurd Solheim. "Design Novelty and Cost-Learning Dynamics in Offshore Fish Farming." In SNAME 14th International Marine Design Conference. SNAME, 2022. http://dx.doi.org/10.5957/imdc-2022-248.

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Fish farming in exposed and offshore waters are potential solutions to many biological and environmental problems currently facing marine aquaculture. Offshore fish farming will require development of larger, more complex marine structures and elaborate logistical support systems, including service vessels. While innovation in concept design for these systems are currently awarded by regulators, production costs that are substantially higher than for existing fish farming system represent a barrier to competitiveness. In this paper, we show that offshore fish farming can become competitive when global seafood demand grows, due to cost-learning dynamics previously documented in a wide range of industries. Using historical time series for production and costs, we find evidence of cost-learning curves in existing aquaculture, suggesting that unit capital expenditures decline at a given rate every time cumulative production capacity doubles. To investigate the potential for offshore fish farming, we develop a simple system dynamics model of key trends and important feedback mechanisms that drive investments in technologies for offshore fish farming. The analysis indicates that policies that reward novel concepts, like license waivers or subsidies, can trigger cost-learning dynamics and move offshore fish farming towards competitiveness. We also find that design novelty may limit the cost reductions that accrue from cost-learning effects. Following the quantitative results, we discuss how the forecasted cost-learning dynamics can be exploited under a regulatory regime that favors innovative concepts. Finally, we reflect on the opportunities an emerging offshore fish farming industry provides for ship design and for the re-use of vessels that have become stranded assets.
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Holthus, Paul F. "Creating Multi-Sectoral Ocean Industry Leadership in Marine Spatial Management." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79044.

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Marine spatial management is emerging as a key tool for managing and conserving marine ecosystems. The development and implementation of ocean zoning, especially Marine Protected Area (MPA) networks, is expanding rapidly around the world. At a global scale, ocean zoning and MPAs are being pursued in many processes through a variety of governmental, inter-governmental (e.g. UN agencies, regional bodies), with significant input from non-governmental organizations (NGOs). Ocean industries, e.g. oil and gas, shipping, fisheries, aquaculture, etc. are the principle user group affected by ocean zoning. Important new ocean uses are under development as well, e.g. offshore wind, ocean energy, carbon sequestration. The creation of ocean zones, such as MPA networks, will have major effects on industry access to marine space and resources, with significant implications for exploration, development, production and transport. It is essential that the industry constructively engage with marine spatial management efforts and stakeholders to ensure that the process is well informed and balanced. This will increase the potential for industry to respect the management regulations of ocean areas often far removed from the reach of governments. Unfortunately, industry is often not present at key ocean zoning developments, especially at the international level, and is not engaged in a constructive, coordinated manner that brings together the range of industries operating in the marine environment. Barriers to industry involvement in marine spatial management include: 1) Lack of understanding of the movement and momentum behind ocean zoning efforts; 2) Limited engagement in the multi-stakeholder processes where zoning is moving most rapidly, e.g. Convention on Biological Diversity, because industry is engaged in sectoral processes; 3) Lack of means for engaging the broader ocean business community on marine management and sustainability issues, particularly at a global level. This paper will outline the need, opportunity and progress in creating proactive, constructive industry leadership and collaboration on ocean zoning, including: 1) Developing an understanding of marine spatial management issues, stakeholders and process; 2) Actively engaging in key international multi-stakeholder processes that are pursuing MPAs and other zoning efforts; 3) Building constructive relationships among ocean industries and other ocean zoning stakeholders; 4) Creating practical experience by constructively engaging in ocean zoning developments in a specific regions.
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M.V., Sukhanova, Kondrachuk D.A., and Tkachova I.V. "PARASITE FAUNA OF SCOPHTHALMUS MAEOTICUS (PALLAS, 1814) SOUTH PART OF CRIMEA." In II INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE "DEVELOPMENT AND MODERN PROBLEMS OF AQUACULTURE" ("AQUACULTURE 2022" CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/aquaculture.2022.148-150.

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The analytical review was made on the basis of literature data, and archive material, and personal studies of the parasitofauna, which were carried out on the Azov-Black Sea branch of FGBNU "VNIRO" ("AzNIIRH"). The object of the research is parasitic organisms, which parasitize on the Black Sea Turbot - Kalkan. The results of the research prove that the parasitofauna of mature, wild flounder off the southern coast of the Crimean peninsula is represented by 4 species. No parasites are detected in juvenile flounder obtained in an industrial way in the conditions of the research base "Zavetnoe" of the Kerch department of the Azov-Black Sea branch of FGBNU "VNIRO" ("AzNIIRKh").
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Karningsih, Putu Dana, Dewanti Anggrahini, Agni Dipta Swastika, Novi Dwijayanti, and Nur Syahroni. "Risk Management of Offshore Aquaculture Operations." In International Conference on Industrial Technology. SCITEPRESS - Science and Technology Publications, 2019. http://dx.doi.org/10.5220/0009422901000108.

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Schindler, Rob, Sean Comber, and Andrew Manning. "METAL POLLUTANT PATHWAYS IN COHESIVE COASTAL CATCHMENTS: INFLUENCE OF FLOCCULATION ON PARTITIONING AND FLUX." In GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b2/v2/09.

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Potentially toxic metals (PTMs) dispersed within catchments from land-based sources pose serious, long-term threats to aquatic ecology and human health. Their chemical state or form affects the potential for transportation and bioavailability and ultimate environmental fate. PTMs are transported either as (1) particulates adsorbed onto sediments, or 2) solutes in groundwater and open channel flow. Cohesive sediment occupies a major part of the world’s coastlines. PTMs are readily sorbed onto clay/silt and consequently particulate-borne PTMs dominate in estuaries and coastal waters. Sediments also represent a considerable ‘sink’ of contaminants which can be periodically remobilized. The role of suspended particulates in the uptake, release, and transport of heavy metals is thus a crucial link in understanding PTM dispersion in these environments. Cohesive sediment is subject to flocculation which dictates the behaviour of suspended sediment. PTM partitioning, flocculation and particulate-borne PTM dynamics are spatially and temporally variable in response to a complex array of inter-related physical and chemical factors exhibited within tidal catchments. However, knowledge of the dispersion and accumulation of both particulate and soluble forms of PTMs within cohesive coastal catchments is limited by little understanding of the association of PTMs with flocculated sediments and their subsequent deposition. This study investigates the influence of changing hydrodynamics and salinities to reveal the partitioning coefficients (Kp) and PTM settling flux (PTMSF) for different spatial and temporal locations within an idealized mesotidal catchment. The data show that the ratio of soluble and particulate-borne PTMs are dependent on salinity and flocculation, and that PTMSF is dependent upon partitioning and flocculation dynamics. Kp is largely dictated by salinity, but floc size and suspended particulate matter concentration (SPMC) are also influential, particular for PTMs with low chloride complexation and in freshwater. PTMSF is a function of Kp, floc size and settling velocity and varies by up to 3 orders of magnitude in response to changing environmental conditions. Findings will improve our ability to predict and monitor contaminant transport for PTMs generated by industries such as agriculture, mining, fisheries, aquaculture & marine engineers. They can be incorporated in existing decision making tools, and help improve numerical modelling parameteristion, to maintain environmental quality standards and limit the impacts of bioavailability of metals in aquatic environment.
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Reports on the topic "Aquaculture industries"

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Longo, Stefano B. Longo, and Timothy P. Clark Clark. Industrial Aquaculture: History, Problems, Potential - Political Economic Review and Analysis of Socioecological Issues in Global Industrial Aquaculture Supply Chains. Tiny Beam Fund, October 2021. http://dx.doi.org/10.15868/socialsector.39078.

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David, Lior, Yaniv Palti, Moshe Kotler, Gideon Hulata, and Eric M. Hallerman. Genetic Basis of Cyprinid Herpes Virus-3 Resistance in Common Carp. United States Department of Agriculture, January 2011. http://dx.doi.org/10.32747/2011.7592645.bard.

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The goal of this project was to provide scientific and technical basis for initiating the development of breeding protocols using marker assisted selection for viral disease resistance in common carp. The specific objectives were: 1) Establishing families and characterizing the phenotypic and genetic variation of viral resistance; 2) Measuring the dynamics of immune response and developing a method to measure the long term immune memory; 3) Developing markers and generating a new genetic linkage map, which will enable initial QTL mapping; and, 4) Identifying genetic linkage of markers and candidate genes (like MHC and TLRs) with resistance to CyHV-3. The common carp is an important farmed freshwater fish species in the world. Edible carp is second only to tilapia in Israeli aquaculture production and ornamental carp (koi) is an important product in both the US and Israel. Carp industries worldwide have recently suffered enormous economic damage due to a viral disease caused by Cyprinid herpes virus 3 (CyHV-3). Aside from preventative measures, a sustainable solution to this problem will be to establish a genetic improvement program of the resistance of fish to the pathogen. The aims of the project was to take the necessary first steps towards that. The differences in survival rates after infection with CyHV-3 virus among 20 families from six types of crosses between three carp lines (two commercial lines and one wild-type carp) revealed that the wild-type carp and its crosses had a much-improved survival over the crosses of the commercial lines themselves. These crosses set the starting point for breeding of commercial strains with improved resistance. Resistant fish had lower antibody titer against the virus suggesting that resistance might depend more on the innate immunity. A set of 500 microsateliite markers was developed and the markers are currently being used for generating a genetic linkage map for carp and for identifying disease resistance QTL. Fourteen candidate immune genes, some of which were duplicated, were cloned from the carp and SNP markers were identified in them. The expression of these genes varied between tissues and suggested functional divergence of some duplicated genes. Initial association between CyHV-3 resistance and one of the genes was found when SNP alleles in these genes were tested for their segregation between susceptible and resistant progeny. The results of this project have implications to the development of viral resistant commercial carp strains and effective immunization against this aggressive disease. The genetic and immunological knowledge accumulated in this project will not only promote carp and koi production but will also contribute to a broader understanding of fish immunogenetics.
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Sukenik, Assaf, Paul Roessler, and John Ohlrogge. Biochemical and Physiological Regulation of Lipid Synthesis in Unicellular Algae with Special Emphasis on W-3 Very Long Chain Lipids. United States Department of Agriculture, January 1995. http://dx.doi.org/10.32747/1995.7604932.bard.

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Various unicellular algae produce omega-3 (w3) very-long-chain polyunsaturated fatty acids (VLC-PUFA), which are rarely found in higher plants. In this research and other studies from our laboratories, it has been demonstrated that the marine unicellular alga Nannochloropsis (Eustigmatophyceae) can be used as a reliable and high quality source for the w3 VLC-PUFA eicosapentaenoic acid (EPA). This alga is widely used in mariculture systems as the primary component of the artificial food chain in fish larvae production, mainly due to its high EPA content. Furthermore, w3 fatty acids are essential for humans as dietary supplements and may have therapeutic benefits. The goal of this research proposal was to understand the physiological and biochemical mechanisms which regulate the synthesis and accumulation of glycerolipids enriched with w3 VLC-PUFA in Nannochloropsis. The results of our studies demonstrate various aspects of lipid synthesis and its regulation in the alga: 1. Variations in lipid class composition imposed by various environmental conditions were determined with special emphasis on the relative abundance of the molecular species of triacylglycerol (TAG) and monogalactosyl diacylglycerol (MGDG). 2. The relationships between the cellular content of major glycerolipids (TAG and MGDG) and the enzymes involved in their synthesis were studied. The results suggested the importance of UDP-galactose diacylglycerol galactosyl (UDGT) in regulation of the cellular level of MGDG. In a current effort we have purified UDGT several hundredfold from Nannochloropsis. It is our aim to purify this enzyme to near homogeneity and to produce antibodies against this enzyme in order to provide the tools for elucidation of the biochemical mechanisms that regulate this enzyme and carbon allocation into galactolipids. 3. Our in vitro and in vivo labeling studies indicated the possibility that phosphatidylcholine (PC) and phosphatidylethanolamine (PE) are associated with desaturation of the structural lipids, whereas shorter chain saturated fatty acids are more likely to be incorporated into TAG. 4. Isolation of several putative mutants of Nannochloropsis which appear to have different lipid and fatty acid compositions than the wild type; a mutant of a special importance that is devoid of EPA was fully characterized. In addition, we could demonstrate the feasibility of Nannochloropsis biomass production for aquaculture and human health: 1) We demonstrated in semi-industrial scale the feasibility of mass production of Nannochloropsis biomass in collaboration with the algae plant NBT in Eilat; 2) Nutritional studies verified the importance algal w3 fatty acids for the development of rats and demonstrated that Nannochloropsis biomass fed to pregnant and lactating rats can benefit their offspring.
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2008 United States Animal Health Report. U. S. Dept. of Agriculture, Animal and Plant Health Inspection Service, December 2009. http://dx.doi.org/10.32747/2009.7204067.aphis.

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This publication highlights APHIS Veterinary Services’ (VS) programs, events, and initiatives aimed at maintaining healthy livestock, poultry, and aquaculture populations. In addition, the report reviews key epidemiological developments of 2008 and provides an overview of our animal health surveillance activities, as well as our emergency planning, preparedness, and monitoring efforts. This report also include an informative summary of the U.S. livestock, poultry, and aquaculture industries.
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