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Dissertations / Theses on the topic 'Aquaculture impact'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

McIntosh, Dennis. "Reducing the environmental impact of aquaculture." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/289234.

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Aquaculture has great potential to help supply the nutritional needs of a growing population. To date, however, the benefits that aquaculture can have, have largely been overshadowed by the environmental degradation some segments of the industry have caused. The following body of work describes my efforts to help reduce the environmental impacts of aquaculture. By integrating aquaculture production into traditional agriculture, the impact of farming on already limited water resources and the reliance on chemical fertilizers can be reduced. Recent expansion of the aquaculture industry in Arizon

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2

Tiu, Laura G. "Assessment and Future Direction of The Ohio State University Aquaculture Program." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276543251.

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3

Stewart, A. R. J. "Aquaculture impact, disaggregation and settling velocity of salmon feed." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0015/MQ49450.pdf.

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4

Rogers, W. D. "The impact of introduced species of crayfish in the British Isles." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307746.

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5

Musclow, Sandy Lee. "Impact of salmon aquaculture on sediment chemistry and mercury loading." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84063.

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One of the main environmental impacts of salmon aquaculture activities in the Bay of Fundy is the alteration of sediment chemistry as a result of the large amount of organic waste that accumulates below fish pens. To investigate these impacts, vertical profiles of delta13C, delta 15N, Corg, Corg:Ntot, FeHC1 , MnHCl, Ptot, PHCl, SO4 2-, AVS, Hgtot, and Hgpyrite in sediment cores collected throughout the bay were acquired. These profiles were then used to identify tracers of aquaculture activities and their impact on the redox zonation of the sediment. In addition, representative samples

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6

Stump, Katherine Alice. "Impact of Oyster Aquaculture in Virginia on Waterfront Property Values." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/91893.

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Virginia is the east coast's largest producer of eastern oysters and produces more than any other state. As the industry grows to meet increasing demand, more conflicts have arisen with other resource users, especially waterfront property owners. Some landowners claim oysters impact recreational and aesthetic uses of their property, therefore lowering the value of the home. Using a hedonic property value model, this study examines the effect of oyster aquaculture on waterfront properties by using 2,245 property sales from 16 counties and independent cities and information on aquaculture activi

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7

Martinez-Garcia, Elena. "Ecological Effects of Aquaculture on Polychaete Assemblages Associated to Soft Sediments." Doctoral thesis, Universidad de Alicante, 2017. http://hdl.handle.net/10045/74472.

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8

Smith, Phillip Alexander. "Impact and management of zander (Stizostedion lucioperca (L.)), a piscivorous fish introduced to British coarse fisheries." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243884.

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9

Carter, Phoebe Kate Louise. "The impact of low concentrations of cadmium on host-monogenean interactions." Thesis, University of Stirling, 2003. http://hdl.handle.net/1893/2593.

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Interpreting data gathered from field studies that investigate the effect of pollution on fish parasites is complicated by the presence of multiple parasite species and mixed pollutant loads. The aim of this study was, therefore, to use controlled experimental studies to assess the impact of a single heavy metal, cadmium, on selected species of the monogenean genera, Dactylogyrus Diesing, 1850 and Gyrodactylus von Nordmann, 1832 and on their hosts, Cyprinus carpio L. and Poecilia reticulata (Peters). The first host-monogenean system investigated was the gill fluke Dactylogyrus extensus Mueller

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10

DI, FRANCO Giulia. "DEFINITION OF INNOVATIVE TECHNOLOGIES FOR MONITORING IMPACT AND BIOREMEDIATION INTERVENTIONS ON MARINE AQUACULTURE." Doctoral thesis, Università degli Studi di Palermo, 2022. http://hdl.handle.net/10447/529112.

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11

Maroso, Francesco. "Development of tools for tracebility and for assessing the genetic impact of aquaculture." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3421929.

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Overexploitation of natural food resources, among which marine resources, put in serious risk the survival of many species and its availability as human food. Reduction of harvest, restocking with farmed fish and farming as alternative source of product, are commonly used to grant high quality food in a sustainable way. Nevertheless, the last two solutions have potential side effects, among which the genetic impact on natural populations that are involved in restocking actions or escapees from fattening cages and farms. Study the genetic structure of the species in the wild and farming environ

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12

Fu, Jing. "Environmental Impacts of Aquaculture Ponds on Coastal Wetlands in the Yellow River Estuary." Kyoto University, 2017. http://hdl.handle.net/2433/225949.

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13

Ansah, Yaw Boamah. "Enhancing Profitability of Pond Aquaculture in Ghana through Resource Management and Environmental Best Management Practices." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/51122.

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The accelerating pace of growth of aquaculture in sub-Saharan Africa has received much positive appraisal because of the potential of the industry to contribute to economic development and food security by providing jobs and animal protein. Adoption of best management practices (BMPs) holds the potential to ameliorate the related environmental impacts of aquaculture, such as in the amounts of nutrients and sediment that will enter natural water bodies from earthen pond effluents. The goals of this study were to characterize adoption of aquaculture BMPs on small-scale, pond-based farms in Ghana

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14

Comas, Morte Jordi. "Fouling management in cage aquaculture. New strategies on nets, fish health and economic impact." Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/463100.

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La formació i gestió del fouling en granges marines genera un debat obert a nivell global en la indústria aqüícola. L’objectiu d’aquest treball ha estat comparar una tecnologia recentment implementada en la gestió de xarxes, la neteja in situ, amb la ja existent i majoritàriament utilitzada estratègia de l’ús de pintures antifouling. El treball experimental es va planificar i realitzar en condicions reals de producció, simulant una part del cicle d’engreix de l’orada, Sparus aurata.. Atès que aquesta és una tesi dins el marc d'un doctorat industrial, es va posar com a objectiu realitzar

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15

Selong, Jason H. "Impacts of aquaculture effluent on water quality and biotic communities in Virginia headwater streams." Thesis, This resource online, 1997. http://scholar.lib.vt.edu/theses/available/etd-08252008-162223/.

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16

Ling, Jian. "Nitrification and the impact of organic matter in fixed-film biofilters application to recirculating aquaculture systems /." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Fall2005/J%5FLing%5F122105.pdf.

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17

Warshafsky, Zoemma Taudel. "Impact of the Parasitic Nematode Anguillicoloides Crassus on American Eels (Anguilla Rostrata) in Chesapeake Bay." W&M ScholarWorks, 2017. https://scholarworks.wm.edu/etd/1516639681.

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American eels are infected by the introduced parasitic nematode, Anguillicoloides crassus, which can cause significant damage to their swimbladders. Despite the high prevalence and severe damage caused by A. crassus, the population level effects on American eels are not well understood. The prevalence and swimbladder damage in young glass eels and elvers are relatively unstudied, despite the potential for this parasite to cause tissue damage. Additionally, the effects of environmental, temporal, and spatial variables have been debated in previous studies without consensus. Also, the potential

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18

Jara, Vergara Bibiana Andrea. "Fate and impact of antibiotics and pesticides used in marine aquaculture : an emergent threat to the coastal ocean." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS422.

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Le Chili, deuxième pays d'élevage de saumons au monde, est celui qui utilise le plus d'antibiotiques et de pesticides, qui peuvent être nocifs pour l'environnement et l'homme. Ces composés ont tendance à être séquestrés par les particules en suspension, transportés par les courants et finalement déposés dans les sédiments, où ils sont finalement consommés par la communauté benthique. Des changements dans les communautés bactériennes, l'émergence de gènes de résistance et les impacts écologiques ont été décrits pour les antibiotiques et les pesticides, bien que la plupart se concentrent sur l'i

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19

Gunawardena, Miriya Prasanni. "A critical review of ecological impact assessment in Sri Lanka : with particular reference to the shrimp aquaculture industry." Thesis, Lancaster University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288988.

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20

Clokie, Benjamin Gregory James. "Impact of lighting conditions on the developmental physiology of Atlantic salmon (Salmo salar)." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/27240.

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The Atlantic salmon (Salmo salar) lifecycle is punctuated by distinct ontogenic stages which are routinely manipulated commercially by photoperiod regimes to enable year-round production. As such, light plays a critical role throughout the production cycle, however, it remains poorly characterised and light spectrum and intensity have not been defined optimally yet. This thesis was therefore set out to test the effects of narrow bandwidth light (Blue-λ(max) 444 nm, Green-λ(max) 523 nm, Red-λ(max) 632 nm and White) and intensity in freshwater (FW). Fry-parr development, out

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21

Torre, Cosio Jorge. "Inventory, monitoring and impact assessment of marine biodiversity in the Seri Indian territory, Gulf of California, Mexico." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280215.

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The conservation of marine ecosystems is at least 20 years behind terrestrial and freshwater ecosystems due to the difficulties in studying and monitoring these dynamic and complex environments. Furthermore, marine environment receive less attention because human impacts are less visible in the sea, and oceans are viewed as global commons. The purpose of the present dissertation is to contribute to the knowledge of marine conservation through the development of three components in natural resources management: inventory, monitoring, and assessment of impacts. I elaborate a multi-taxa inventory

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22

Jaramillo, Torres Hugo Alexander. "Intestinal health and microbiota in salmonids : the impact of probiotics under potentially stressful conditions." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/9705.

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The intestine and associated bacterial microbiota have a central role the physiology and homoeostasis of the host. The understanding of how farming conditions affect the intestine and associated microbiota of fish is the high importance to counteract the potential threats to health and welfare. Thus, this thesis aims to understand the role of stressful husbandry conditions on the intestine and associated microbiota of rainbow trout and Atlantic salmon. Within this context, the role of Pediococcus acidilactici as health promoter was also investigated Chapter 3 investigated the replacement of fi

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23

Dixon, Melanie J. "The sustainable use of water to mitigate the impact of watercress farms on chalk streams in southern England." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/195397/.

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24

Wong, Clara. "The effects of green shelled mussel mariculture on benthic communities in Hauraki Gulf." Click here to access this resource online, 2009. http://hdl.handle.net/10292/663.

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Sea-bed benthic-invertebrate assemblages of species within and proximal to an existing mussel farm off Taniwhanui Point, eastern Waiheke Island, are reported. Substratum type, whether predominantly mud, gravels or an admixture of the two, mud/gravels, is shown to influence infaunal species assemblage composition; the bivalve Theora lubrica, ostracods, amphipods and polychaetes characterise muddy substrata; polychaetes, particularly spionids and syllids, ostracods, amphipods, bivalves and ophiuroids characterise mud/gravel substrata; and diverse assemblages of polychaetes, bivalves, pagurid cra

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25

Johansson, Torbjörn. "Phosphorus emissions from fish farms : observed and predicted effects /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-5114-4/.

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26

Ghanawi, Joly Karim. "Direct and indirect ecological interactions between aquaculture activities and marine fish communities in Scotland." Thesis, University of Stirling, 2018. http://hdl.handle.net/1893/27258.

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Presence of coastal aquaculture activities in marine landscapes is growing. However, there is insufficient knowledge on the subsequent ecological interactions between these activities and marine fish communities. The overall aim of this thesis was to evaluate the direct and indirect ecological effects of aquaculture activities on marine fish communities in Scotland. A combination of empirical and modelling approaches was employed to collect evidence of how aquaculture activities affect marine fish communities at the individual, population and ecosystem levels around coastal sea cages. The two

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27

Delegrange, Alice. "Impact du phytoplancton sur les juvéniles de bars (Dicentrarchus labrax) en milieu aquacole : approches in situ et expérimentales." Thesis, Littoral, 2015. http://www.theses.fr/2015DUNK0518.

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Dans une ferme d'élevage de bar (Dicentrarchus labrax) du sud de la mer du Nord, de fortes mortalités de bar coïncident régulièrement avec l'efflorescence phytoplanctonique printanière. Le rôle du phytoplancton dans ces mortalités a donc été étudié : un suivi saisonnier (février-novembre 2012) a permis de définir les communautés phytoplanctoniques en présence et, la diversité et la toxicité du genre Pseudo-nitzschia. Ainsi, trois espèces potentiellement toxiques ont été identifiées (P. delicatissima, P. pungens, P. fraudulenta) en association avec des concentrations élevées d'acide domoïque (j

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28

Abdou, Khaled. "Evaluation des impacts environnementaux du chalutage de fond et de l'aquaculture en Tunisie : approche comparative par les Analyses de Cycle Vie (ACV)." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0141/document.

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L'aquaculture et la pêche impactent l'environnement, les ressources et le fonctionnement des écosystèmes. L’un des enjeux en écologie est de placer ces activités anthropiques dans un cadre de développement durable. Afin de quantifier et de limiter ces impacts, différentes méthodes d’évaluation environnementale ont vu le jour. L’Analyse de Cycle de Vie (ACV) est une méthode pertinente pour évaluer le bilan environnemental d'un produit en prenant en compte l’ensemble de ses étapes de vie, "du berceau à la tombe", depuis l’extraction des matières premières et leurs transformations pour l'élaborat

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Gumbo, Tichaona. "An economic analysis of the impact of removing organic waste from small scale cage aquaculture systems in irrigation dams in the Western Cape." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6775.

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Thesis (MScAgric (Agricultural Economics))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The rising demand of fish due to population growth coupled by stagnation of fish supply from natural capture has led the world to turn to aquaculture to fill in the gap between fish supply and demand. Aquaculture has emerged as the only sustainable way of supplying the rising population with fish. However the rapid expansion of aquaculture has been met with growing concerns over its environmental effects especially waste produced from aquaculture. The net cage system that is currently being

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Abdou, Khaled. "Evaluation des impacts environnementaux du chalutage de fond et de l'aquaculture en Tunisie : approche comparative par les Analyses de Cycle Vie (ACV)." Electronic Thesis or Diss., Brest, 2017. http://www.theses.fr/2017BRES0141.

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L'aquaculture et la pêche impactent l'environnement, les ressources et le fonctionnement des écosystèmes. L’un des enjeux en écologie est de placer ces activités anthropiques dans un cadre de développement durable. Afin de quantifier et de limiter ces impacts, différentes méthodes d’évaluation environnementale ont vu le jour. L’Analyse de Cycle de Vie (ACV) est une méthode pertinente pour évaluer le bilan environnemental d'un produit en prenant en compte l’ensemble de ses étapes de vie, "du berceau à la tombe", depuis l’extraction des matières premières et leurs transformations pour l'élaborat

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31

Brazil, Brian Ligar. "Impact of Ozonation on System Performance and Growth Characteristics of Hybrid Striped Bass (Morone chrysops (f) x Morone saxatilis (m)) Reared in Recirculating Aquaculture Systems." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30379.

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This study was conducted to evaluate the impact of sustained ozone dosages rates (0, 3, 13, 25, and 45 g O3 per kg feed delivered per day)on water quality profile, fish physiology, and growth during a production cycle of hybrid striped bass reared in pilot scale recirculating systems. Nitrogenous wastes and dissolved organic compounds increased linearly (p < 0.01) throughout the trial under both ozonated and unozonated conditions. Ozone treatments 13 and 25 g O3 / kg feed received 170 kg more feed than the control treatment (0 g O3 / kg feed) by the end of trial. The ozonated system received a

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32

Antonelli, Laetitia. "Impact de la parasitologie sur la pisciculture en Corse : Suivi des parasitoses et étude des transferts de parasites depuis la faune sauvage vers les poissons élevés en mer ouverte." Corte, 2010. http://www.theses.fr/2010CORT0015.

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Depuis quelques décennies le déclin des stocks de poissons sauvages en Méditerranée a entraîné un développement accru de l’aquaculture. En Corse, l’aquaculture est devenue aujourd’hui l’une des principales activités agricoles de l’île. En général, et chez les poissons en particulier, l'effet pathogène des parasites dans les conditions naturelles est réduit, conséquence de l'équilibre établi au cours de l'évolution dans le système hôte-parasite. En aquaculture c'est l'accumulation, chez un individu hôte, d'un organisme étranger (virus, bactérie, ou parasite) qui entraîne un effet pathogène dont

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33

Bouska, Wesley Wade. "Road crossing designs and their impact on fish assemblages and geomorphology of Great Plains streams." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/1084.

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34

Bachmann, Jennifer Eva-Maria [Verfasser], Astrid [Akademischer Betreuer] Gärdes, Astrid [Gutachter] Gärdes, and Dieter [Gutachter] Wolf-Gladrow. "Particulate organic matter : Vector for carbon export, indicator for aquaculture impact and microbial hotspot / Jennifer Eva-Maria Bachmann ; Gutachter: Astrid Gärdes, Dieter Wolf-Gladrow ; Betreuer: Astrid Gärdes." Bremen : Staats- und Universitätsbibliothek Bremen, 2019. http://d-nb.info/1186248653/34.

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35

Aiub, Jose Americo da Silva. "Fitotratamento de efluente de aquacultura com Azolla filiculoides." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/11181.

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A aquacultura pode gerar considerável impacto ambiental pelo alto nível de N e P produzido. Este fato reflete a necessidade de mais estudos sobre a remoção daqueles nutrientes.O objetivo deste estudo foi avaliar o uso de Azolla filiculoides na remoção de N e P de efluentes com diferentes densidades de coberturas e períodos de tempo, com e sem sedimentação prévia. Ambos os trabalhos foram desenvolvidos no Setor de Aquacultura da UFRGS.A planta Azolla filiculoides foi distribuída em proporções de 0% (controle), 25%,50% e 75% da superfície das caixas plásticas. O período do experimento foi de 10,

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36

Navarrete-Mier, Kléber Francisco. "Impacto de los residuos orgánicos generados por los cultivos marinos en jaulas flotantes: alteración de la producción secundaria." Doctoral thesis, Universidad de Murcia, 2011. http://hdl.handle.net/10803/32053.

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Durante el desarrollo de la presente tesis doctoral se han estudiado las posibles alteraciones causadas por los residuos orgánicos generados por los cultivos marinos de peces en jaulas flotantes, enfatizando en los efectos sobre algunos de los productores secundarios asociados. Varios de los impactos en el ambiente provocados por los cultivos en jaulas flotantes han sido previamente estudiados por nuestro grupo de investigación, por lo que con este trabajo se pretende profundizar y ampliar estos conocimientos, para a continuación poder conformar un modelo holístico del sistema.<br>The present

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Liu, Yajie. "An analysis of the management and economics of salmon aquaculture." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/323.

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Salmon aquaculture can be a potential solution to bridge the gap between declining capture fisheries and increasing seafood demand. However, the environmental impacts it creates have generated criticism. The overall objectives of this dissertation are to examine the economic consequences of environmental issues associated with salmon aquaculture, and to explore policy implications and recommendations for reducing environmental impacts. These objectives are addressed in five main analyses. The growth of salmon aquaculture is analyzed based on farmed salmon production in the four leadin

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Giles, Hilke. "Dispersal and remineralisation of biodeposits : ecosystem impacts of mussel aquaculture/." The University of Waikato, 2006. http://hdl.handle.net/10289/2548.

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Suspension-feeding bivalves produce biodeposits (faeces and pseudofaeces) that have much higher sinking velocities than their constituent particles. Consequently they cause sedimentation of material that might otherwise not be deposited. The benthic remineralisation of biodeposits increases sediment oxygen demand and nutrient regeneration, thus enhancing the benthic-pelagic coupling of nearshore ecosystems. In New Zealand the mussel Perna canaliculus has a high natural abundance and is also intensively cultured. This thesis examines the dispersal and remineralisation characteristics of mussel

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Sorieul, Louis. "Pseudoalteromonas sp. NC201, un probiotique isolé en Nouvelle-Calédonie pour l'élevage de la crevette Litopenaeus stylirostris : Caractérisation et impact sur l’état physiologique de la crevette." Thesis, Nouvelle Calédonie, 2017. http://portail-documentaire.unc.nc/files/public/bu/Louis.Sorieul_TheseFinaleCorrigee_2017.pdf.

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La souche Pseudoalteromonas sp. NC201, isolée en Nouvelle-Calédonie, possède des propriétés antibactériennes et probiotiques dans le cadre d’élevages larvaires de crevettes. Ainsi, cette souche bactérienne constitue une alternative à l’utilisation des antibiotiques. Ce travail de thèse a été focalisé sur la caractérisation de NC201 et de son potentiel antimicrobien ainsi que sur l’étude de son effet sur la crevette, Litopenaeus stylirostris lors de challenges expérimentaux. L’analyse du génome de NC201 a révélé la présence de clusters de gènes codants des composés antimicrobiens ainsi que deux

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40

Tew, Kwee Siong. "The impacts of algal control in catfish and percid aquaculture ponds." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1062103252.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 114 p.; also includes graphics. Includes abstract and vita. Advisor: David A. Culver, Dept. of Evolution, Ecology, and Organismal Biology. Includes bibliographical references (p. 103-114).

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Quinlan, Roberto. "Fossil chironomids as indicators of water quality impacts from aquaculture activities." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ56097.pdf.

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Clerk, Saloni. "Fossil chironomids as indicators of water quality impacts from aquaculture activities." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ65611.pdf.

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43

Haque, Mohammad Mahfujul. "Decentralised fish seed networks in Northwest Bangladesh : impacts on rural livelihoods." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/301.

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Ricefield based fish seed production (RBFSP) in irrigated spring (boro) ricefields after initial introductions by external promoters has spread among farmers in parts of Northwest Bangladesh. This approach to producing juvenile fish, rather than by specialised geographically clustered hatchery and nursery enterprises, has been recognised as a strategy for decentralised production that makes large high quality seed available locally and supports food fish production. RBFSP has been promoted by the international NGO CARE as part of a process to improve rice-based livelihoods of farming household

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Faruque, Golam. "An exploration of impacts of aquaculture production and marketing on rural livelihoods in three regions in Bangladesh." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/253.

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Increased domestic and international demand for aquatic foods have greatly enhanced aquaculture practices and production in Bangladesh, which is reflected in the national economy. However, the impacts of a fast growing aquaculture sector through the involvement of stakeholders, poorer sections throughout the value chain and broader rural livelihoods are largely underdeveloped and have frequently been ignored. The present study explores the impacts of dynamic aquaculture sector on stakeholders at production level and supply chain and test the hypothesis that aquaculture is enhancing rural livel

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Chamberlain, Jon. "Modelling the environmental impacts of suspended mussel (Mytilus edulis L.) farming." Thesis, Edinburgh Napier University, 2002. http://researchrepository.napier.ac.uk/Output/5595.

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The potential impacts of marine aquaculture operations on the environment are reviewed. The reported effects of suspended mussel farms on the benthic environment are examined and the potential impacts discussed. A framework to assess the impacts of suspended mussel farms is presented. The use of simulation models to predict the impact of fish farm wastes on the benthic environment is discussed and the mathematical theory supporting such models is presented. The applicability of these models to mussel farming is discussed and the data required to undertake such modelling identified. The effect

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Voller, Samuel W. "The impacts of wheat gluten products and short-chain fructooligosaccharides on the health and production of juvenile rainbow trout (Oncorhynchus mykiss)." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/9826.

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Through the implementation of in vivo feeding trials, the efficacy of three wheat gluten (WG) products, vital (Amytex®), hydrolysed (Merripro®) and soluble hydrolysed (Solpro®) wheat gluten as replacement of soy protein concentrate, and scFOS prebiotic (Profeed®) supplementation were analysed to assess their impacts on intestinal health and production of juvenile rainbow trout. Microbial community analysis in experiment one revealed a degree of diet based modulation with 7.5% and 15% inclusions of wheat gluten (WG) products. Bacterial species diversity was significantly reduced with 15% hydrol

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Silva, Orildo S?vio de Oliveira. "Avalia??o social de empreendimentos agroindustriais :um estudo na carcinicultura." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/14992.

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Made available in DSpace on 2014-12-17T14:52:57Z (GMT). No. of bitstreams: 1 OrildoSOS.pdf: 487861 bytes, checksum: 000c581381b10a9543619587412d4f6e (MD5) Previous issue date: 2006-05-19<br>O objetivo desse trabalho foi investigar a contribui??o social da atividade econ?mica denominada de carcinicultura, para o munic?pio de Canguaretama no Rio Grande do Norte, a partir da vis?o dos moradores do citado munic?pio, sendo enfocados aspectos ambientais, aspectos de produ??o, consumo de energia, gera??o de empregos e renda, e investimentos na ?rea social, para a melhoria de vida da popula??o loca

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Prescott, Steven George. "Exploring the sustainability of open-water marine, integrated multi-trophic aquaculture, using life-cycle assessment." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/28269.

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Among efforts to develop sustainable approaches towards the intensive rearing of finfish within open marine waters, is the development of integrated aquaculture techniques. Integrated Multi-Trophic Aquaculture (IMTA), has been promoted as a way to reduce unwanted environmental impacts associated with the intensive production of marine finfish within net-pens. The principle aim of this concept, is the bioremediation of nutrient discharges from fish aquaculture. This is to be achieved by integrating fish cultivation with the growing of species from lower trophic levels, which use the nutrient di

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Koranteng, Kwame Abu. "The impacts of environmental forcing on the dynamics of demersal fishery resources of Ghana." Thesis, University of Warwick, 1998. http://wrap.warwick.ac.uk/34664/.

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The dynamics of demersal fish species assemblages and stocks on the continental shelf of Ghana, West Africa were investigated using data from trawl surveys conducted between 1963 and 1990, and in relation to marine environmental and nearshore forcing factors. Time series analysis was used to examine the dynamics of the marine environment. Classification and ordination methods were used to identify fish assemblages and to identify factors that determine assemblage formation and dynamics. The response of the identified assemblages to changes in the Ghanaian shelf ecosystem were assessed. Between

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Macabuac, Maria Cecilia Fiel. "After the Aquaculture Bust: Impacts of the Globalized Food Chain on Poor Philippine Fishing Households." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28380.

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ï»¿The Philippines is a food extractive enclave in the bust stage of export-oriented aquaculture, and this globalization agenda has had several negative impacts. Aquaculture has not expanded fish and marine foods but threatens national food security by integrating Philippine aquatic resources into the globalized food chain. Following structural adjustment policies imposed beginning in the 1980s, the Philippines shipped massive levels of animal protein to world markets, but this country has grown less food self-sufficient. During the decades that shrimp aquaculture has boomed and busted in the

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