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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Aspects of the population ecology, habitat use and behaviour of the endangered Knysna seahorse (Hippocampus capensis Boulenger, 1900) in a residential marina estate, Knysna, South Africa: implications for conservation

Claassens, Louw January 2018 (has links)
The Knysna seahorse Hippocampus capensis is South Africa’s only endemic seahorse species, and is found in only three adjacent estuaries along the southern coast. The conservation of this endangered species is important on a national and international level. This study presents the first research on this species within the Knysna estuary since 2001 and specifically focuses on aspects of its ecology within a residential marina estate (Thesen Islands Marina). The physico-chemical and habitat features of the marina were described and the population ecology, habitat use, and behaviour of the Knysna seahorse were investigated. Physico-chemical conditions within the western section of the marina, characterised by high water current velocities, were similar to that of the adjacent estuary. The eastern section of the marina was characterised by lower water current velocities and higher turbidity. Four major habitat types were identified within the marina canals: (I) artificial Reno mattress (wire baskets filled with rocks); (II) Codium tenue beds; (III) mixed vegetation on sediment; and (IV) barren canal floor. Seahorse densities within the marina were significantly higher compared to densities found historically within the estuary. Highest seahorse densities were specifically found within the artificial Reno mattress structures and within the western section of the marina. Seahorse density varied spatially and temporally and the type of habitat was an important predictor for seahorse occurrence. An experimental investigation found that H. capensis chooses artificial Reno mattress habitat over Zostera capensis when given a choice. GoPro cameras were used successfully to investigate daytime seahorse behaviour within the Reno mattress habitat. Seahorses were more active during the morning, spent most of their time (> 80 %) feeding, and morning courting behaviour for this species were confirmed. However, during the summer holiday period (mid-December to mid-January) few seahorses were observed on camera, which suggests that the increase in motor boat activity and the related increase in noise had a negative effect on H. capensis feeding and courting behaviour. The marina development, and in particular the Reno mattresses, created a new habitat for this endangered species within the Knysna estuary. In addition to the protection and restoration of natural habitats in which H. capensis is found, the conservation potential of artificial structures such as Reno mattresses should be realised.
12

Formulating and implementing a strategy for project management in the Eden District Municipality

Botha, Marthinus Christoffel 12 1900 (has links)
Theses (MBA)--Stellenbosch University, 2003. / ENGLISH ABSTRACT: The municipal elections of 5 December 2000 ushered in the final phase in the transformation of local government in South Africa. Legislation and directives from national government require that municipalities operate within a context of a strategic framework. This strategic framework, or Integrated Development Plan, determines how a municipality in an integrated practical approach, implement its legislative mandates obtained from the Constitution of the Republic of South Africa, 1996 the Local Government: Municipal Structures Act, 1998 and other legislation. In the past municipalities were characterized by operating within strong functional divisions or departments. It was inevitable that service delivery, career development and performance management developed within the context of functional isolation. However, the solutions to many of the socio-economic problems which face municipalities require that it have to be dealt with in a multi disciplinary manner. Based on the legislative framework in which municipalities operate, as well as the directives from national government, the study concluded that Eden District Municipality is obliged to reconsider its present operational methodologies. Based on a literature study of organisational structures and the introduction of project management within organisations, a number of recommendations are formulated to assist Eden District Municipality in the implementation of project management as strategic objective. / AFRIKAANSE OPSOMMING: Transformasie van plaaslike regering in Suid-Afrika het sy finale beslag gevind na die munisipale verkiesings van 5 Desember 2000. Wetgewing en voorskrifte van die nasionale regering vereis tans dat munisipale owerhede sal opereer binne die konteks van 'n strategiese raamwerk. Sodanige raamwerk, of Geïntegreerde Ontwikkelingsplan, bepaal die wyse waarop 'n munisipaliteit op 'n geïntegreerde wyse praktiese beslag moet gee aan die funksionale mandate soos ontleen uit die Grondwet van die Republiek van Suid-Afrika, 1996, Plaaslike Regering: Munisipale Strukturewet, 1998 en ander wetgewing. Munisipaliteite in Suid-Afrika is egter in die verlede gekenmerk deur departementalisering streng binne funksionele konteks. Gevolglik het dienslewering, loopbaanontwikkeling en prestasiemeting onvermydelik ook in 'n patroon van funksionele isolasie ontwikkel. Die sosio ekonomiese -eise wat munisipaliteite tans die hoof moet bied, kan egter beswaarlik binne 'n enkel dimensionele funksionele benadering hanteer word. Gegrond op die vereistes van die wetgewende raamwerk wat plaaslike regering in Suid-Afrika reguleer, sowel as die voorskrifte van die nasionale regering, word in die studie bevind dat dit onafwendbaar vir Eden Distriksmunisipaliteit is om sy bestaande operasionele metodologië in heroorweging te neem. Op grond van 'n literatuurstudie van organisasiestrukture en die toepassing van projekbestuur in organisasies, word bepaalde voorstelle aan die Eden Distriksmunisipaliteit geformuleer om projekbestuur as strategiese oogmerk te implementeer.

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