Thesis (M. A. (Aquaculture )) -- University of Limpopo, 2006 / Refer to document / NRF (National Research Foundation) and Canon Collins Educational Trust for Southern Africa (CCETSA)

Dans les pays du Sud, le tourisme est généralement une activité valorisée par les institutions gouvernementales du fait de son essor international actuel. Les zones côtières sont particulièrement convoitées par cette activité de part l'attractivité que représentent les plages et les écosystèmes marins notamment. Les zones côtières du Mozambique qui représentent plus de 2700 km où la qualité environnementale des plages constitue une des plus importantes attractivités touristiques du pays, sont sollicitées par les entrepreneurs étrangers. Traditionnellement exploitées par des communautés de pêcheurs dont les ressources de pêche sont le principal moyen de subsistance, les zones côtières du Mozambique sont aujourd'hui au coeur des plans d'aménagement et de développement impulsés par les différents secteurs d'activités présents sur le littoral tels que le tourisme, la pêche et plus récemment la prospection pétrolière. Comment le gouvernement parvient-il alors à concilier les intérêts de chaque secteur économique ainsi que ceux des communautés locales existantes ? A travers les exemples de cas des archipels de Bazaruto et des Quirimbas, nous montrerons l'identité originale des sociétés côtières par rapport à la formation de l'Etat-Nation du Mozambique, en apportant des connaissances sur leurs pratiques traditionnelles de pêche liées à la gestion communautaire des ressources naturelles. Nous établirons les effets de la mise en tourisme des îles associée à la mise en conservation des écosystèmes marins pour les communautés locales, en évaluant l'impact sur leur organisation sociale et leur représentation culturelle.

Vibrio spp., natural inhabitants of aquatic environments, are one of the most common causes of bacterial gastroenteritis in the world, being spread to humans via the ingestion of seafood, contaminated drinking water or exposure to seawater. The majority of Vibrio spp. are avirulent, but certain strains may sporadically be human pathogenic. Vibrio cholerae may cause cholera and fatal wound infections, Vibrio parahaemolyticus may cause gastroenteritis and Vibrio vulnificus may cause wound infections and sepsis. To expand current knowledge of the occurrence, ecological niche and persistence of potential human pathogenic Vibrio spp. in aquatic environments, occurrence and laboratory studies were performed. The seasonal variation of Vibrio spp. in clams and mussels from Mozambique and Sweden were studied, with isolated strains characterized and compared with those isolated from water samples collected in India. Results showed that the numbers of Vibrio spp. in Mozambican clams peaked during the warmer rainy season and that the dominating species was V. parahaemolyticus. Biochemical fingerprinting and virulence screened by PCR revealed a high similarity among strains from the different aquatic environments. However, isolate functional hemolytic analyses and antibiotic resistance patterns differed between strains; Swedish and Indian strains were less sensitive to the tested antibiotics and had a lower hemolytic capacity than those from Mozambique. Molecular analysis of bacterial DNA from Swedish mussels showed the presence of the three Vibrio spp. most commonly linked with human illness, as well as their associated virulence genes. The strains isolated from marine and clinical environments were equally and highly harmful to the tested eukaryotic cells. The persistence of clinical V. cholerae in aquatic environments was investigated in vivo. Strains were exposed to mussels, with bacterial uptake and elimination then examined. The mussels were able to avoid the most potent strain by complete closure of shells. The less potent strain was accumulated in mussel tissue in low levels and one marine control strain to a higher degree. Mussels eliminated the pathogenic strain less efficiently than they did the marine strain. One clinical and one marine strain were then exposed to 4°C for 21 days, with the temperature then increased to 20°C. The clinical strain was more prone to lose culturability than the marine strain at 4°C, the former performed significantly better in regaining culturability after the temperature up-shift. Subsequently, the persistence of the clinical strain in natural bottom sediment, incubating as above, was studied and results showed a similar decrease in culturable numbers in the sediment as in the water. As the clinical V. cholerae strains did not carry any of the standard set of virulence genes, the ability to change from non-culturable to culturable may be of great importance to strain pathogenicity. The results also show that natural bottom sediment may be a potential reservoir of human pathogenic Vibrio spp.

During 2002-2006 geological field work were carried out in Mozambique. The purpose was to check the preliminary geological interpretations and also to resolve the problems that arose during the compilation of preliminary geological maps and collect samples for laboratory studies. In parallel, airborne geophysical data were collected in many parts of the country to support the geological interpretation and compilation of geophysical maps. In the present work the aeromagnetic data collected in 2004 and 2005 in two small areas northwest of Niassa province and another one in eastern part of Tete province is analysed using GeosoftTM. The processing of aeromagnetic data began with the removal of diurnal variations and corrections for IGRF model of the Earth in the data set. The study of the effect of height variations on recorded magnetic field, levelling and interpolation techniques were also studied. La Porte interpolation showed to be a good tool for interpolation of aeromagnetic data using measured horizontal gradient. Depth estimation techniques are also used to obtain semi-quantitative interpretation of geological bodies. It was showed that many features in the study areas are located at shallow depth (less than 500 m) and few geological features are located at depths greater than 1000 m. This interpretation could be used to draw conclusions about the geology or be incorporated into further investigations in these areas.

<p>The purpose of this study is to understand the situation concerning women and gender in relation to development, in the Mozambican district of Nacala Porto. The ambition is to identify present theoretical feminist perspectives in terms of perceived problems for women, their ability to solve them, focus areas for improvement and strategies for reaching development aims.</p><p>To enable an understanding of the situation concerning women and gender in relation to development, we have conducted an analytical framework consisting of three main theoretical feminist perspectives in international development policies. These were applied as analytical tools, which consisted of Ester Boserups perspective of Women’s role in economic development, Women In Development (WID) and Gender And Development (GAD).</p><p>The study displayed a discrepancy between the powerful women in the Mozambican parliament and the lack of social power described by the women in Nacala Porto. At the district level the results showed a dominating modernistic paradigm, similar to the situation identified by Boserup, who emphasised that the economical development did not benefit women equally. The subordination of women has been apparent in the district. The long-term strategy of transforming the gender structure has been met with support as well as resistance. The GAD-aim of mainstreaming gender showed a gap between international policy and practise in the district. The interventions that were WID-oriented have on the other hand shown progress regarding female representation, non-discriminatory legislation and increase of girls starting primary school. However, the WID-progress is limited without a gender perspective.</p><p>Three main areas were continuously discussed as means having to change, to potentially alleviate poverty and include women in the development process. These areas were the access to employment, sustainable education and functioning family relations. The interdependence of these areas also seemed to require an integration of the three theoretical feminist perspectives of Boserup, WID and GAD.</p>

Thesis (Ph. D.)--State University of New York at Binghamton, Department of Economics, 2009. / Includes bibliographical references.

Thesis (M. Phil.)--University of Hong Kong, 1974. / Offset from typescript.

Cholera remains a threat to public health in many developing countries, including Mozambique. Although the disease is easily preventable by practices of hygiene and sanitation, cases are reported in the country every year, as for example in the Lago district in 2015. This qualitative research project set out to explore in what ways the promotion of hygiene and sanitation practices on district level in Mozambique is carried out. Therefore, actors, messages and channels involved in these communication processes were explored via a field study in Lago and a review of relevant literature. Subsequently, the results of the field study and literature review were analysed by applying the concepts of one-way and two-way communication which are part of public relations theory. This analytical framework allowed the researchers to fill a gap identified in the existing literature about hygiene and sanitation promotion, which did not seem to include communication theories linked to public relation practices when it came to hygiene and sanitation promotion in developing countries as a method to prevent cholera. It has been found that the one-way communication approach towards the public was successful in handling the recent cholera outbreak of 2015, however, the approach is not substantial and should be improved into a two-way communication approach, which would allow the local population to express their needs in hygiene and sanitation, as well as their capabilities to implement change in these matters. Simultaneously, a lack of resources within the district authorities involved in hygiene and sanitation promotion seems to encourage one-way communication towards the public from their side, as two-way communication would demand further resources for research into the above mentioned needs and capabilities of communities.

published_or_final_version / Botany / Master / Master of Philosophy

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