Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 74 for “"Agriculture, Forestry and Fisheries"”.
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Performance determinants for emerging agricultural cooperatives in South Africa
… support, comprising a combination of grants and loans from government. Over and above the financial support, co-ops also receive non-financial support in the form of capacity development. Some of the co-ops received support in the form of inputs and farming equipment. In spite of the support …
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Using Management Strategy Evaluation to address problems arising as a result of competing users of the South African horse mackerel resource
… to the South African fishing industry and is a key component of the Benguela ecosystem. This thesis concerns the assessment and management of the South African horse mackerel resource. It starts with a brief review of the biology of the Cape horse mackerel and the history of the …
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At the interface : marine compliance inspectors at work in the Western Cape
The Western Cape fisheries are heavily contested. Primary concerns in the contestations are over access to marine resources, which have been regulated through the Marine Living Resources Act of 1998. At the centre of these conflicts, is the figure of the marine compliance inspector, whose task is …
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Collective ownership in the South African small-scale fishing sector: a framework for sustained economic growth
… of collective ownership in the small-scale fisheries sector, as advocated by the Department of Agriculture, Forestry and Fisheries, the South African government department responsible for fisheries administration. More specifically, it examined the conditions under which collective ownership …
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How can smart technologies be applied by smallholder farmers for increased productivity and sustained livelihoods?
… The use of innovative farming techniques and technology has proven to accelerate the production yields and improve resilience to vulnerabilities which impact agricultural productivity. The use of smart technologies in farming is mainly present among largescale commercial farms, with …
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Investigating trophic interactions between parasites and their marine fish hosts using stable isotope analysis
… been largely neglected from ecological studies and we have a relatively limited understanding of their trophic ecology. Hence, in order to incorporate parasites into food-web models and ecological studies, basic trophic interactions between parasites and their hosts need to be assessed. Here, I …
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Questionnaire-based study to determine the state of tuberculosis testing in goats in South Africa
… is largely neglected, whereas bTB diagnosis and surveillance in cattle and buffalo are prioritised due to limited resources. In communities where bTB surveillance is not conducted regularly in herds, bTB surveillance data in cattle and other susceptible livestock are lacking. Goats …
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Strategy for speedy field diagnosis and control of avian influenza viruses (AIV) outbreak at the point of contact/care (POC)
… Conventional strategies for AI detection and control using vaccination both start by growing the viruses and isolating them in embryonated chicken eggs. This entire process takes 6 to 8 months from viral detection to the release of the vaccine for that particular strain. A rapid and cost …
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Bathymetry of the South African Continental Shelf
… The continental shelf is host to major mineral and petroleum deposits, home to South Africa’s major sea fisheries and full of navigation hazards. Therefore, knowledge of the seafloor features, or bathymetry, of the continental shelf is essential to understanding both its long-term geological …
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Using seasonal mass-balanced models of the Algoa Bay ecosystem to investigate African penguin and small pelagic fish interactions
… flows of an ecosystem to explore the past and present impacts of fishing and environmental change on the trophic flows of a given food web. Currently, Algoa Bay supports the world’s largest breeding colony of endangered African penguins (Spheniscus demersus). The breeding success of African …
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Assessment of the population structure of the South African sardine Sardinops sagax using a multi-method approach and the morphological and molecular characterization of a stock-discriminating digenean parasite biotag of the genus Cardiocephaloides
An understanding of the population structure of commercially exploited species is essential for effective fisheries management. Fish stocks are typically identified based on the observation of differences in genetic and/or phenotypic characteristics between fish from discrete units. Recent …
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Environmental change and soil organic carbon storage in a dust emission hotspot, Free State, South Africa
Drylands farming areas are subject to land cover or land use change, climate change, and a variety of land management practices which may contribute to dust emissions and soil loss, a common symptom of land degradation. The goal of this study was to establish how the shift in land cover or land use …
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ΚΛΗΡΟΝΟΜΙΚΗ ΙΚΑΝΟΤΗΤΑ ΠΑΡΑΓΩΓΗΣ ΡΗΤΙΝΗΣ ΧΑΛΕΠΙΟΥ ΠΕΥΚΗΣ (PINUS HALEPENSIS MILL)
… ΜΕ ΤΟ ΣΧΕΔΙΟ ΤΩΝ ΠΛΗΡΩΝ ΤΥΧΑΙΟΠΟΙΗΜΕΝΩΝΟΜΑΔΩΝ (RANDOMIZED COMPLETE-BLOCK DESIGN). ΑΠΟ ΤΗΝ ΕΡΕΥΝΑ ΑΥΤΗ ΠΡΟΕΚΥΨΕ ΟΤΙ Η ΠΑΡΑΓΩΓΗ ΤΗΣ ΡΗΤΙΝΗΣ ΕΙΝΑΙ ΕΝΑΣ ΚΛΗΡΟΝΟΜΗΣΙΜΟΣ ΧΑΡΑΚΤΗΡΑΣ ΣΕ ΜΕΓΑΛΟ ΒΑΘΜΟ (0.64ΜΕΧΡΙ 0.70). ΑΠΟ ΤΙΣ ΣΥΓΚΡΙΣΕΙΣ ΤΩΝ ΔΙΑΦΟΡΩΝ ΠΡΟΕΛΕΥΣΕΩΝ ΠΡΟΕΚΥΨΑΝ ΣΥΜΠΕΡΑΣΜΑΤΑ ΓΙΑ ΤΟ ΠΟΙΕΣ …
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ΟΙΚΟΝΟΜΙΚΑ ΚΑΙ ΑΝΘΕΚΤΙΚΑ ΟΔΟΣΤΡΩΜΑΤΑ ΣΤΑ ΟΡΕΙΝΑ ΔΑΣΗ ΤΗΣ ΕΛΛΑΔΑΣ
Η ΟΔΟΣΤΡΩΣΙΑ ΤΩΝ ΔΑΣΙΚΩΝ ΔΡΟΜΩΝ ΣΑΝ ΠΟΛΥΔΑΠΑΝΟ ΕΡΓΟ ΥΠΟΔΟΜΗΣ ΑΠΑΙΤΕΙ ΣΧΕΔΙΑΣΗ ΤΗΣ ΟΙΚΟΝΟΜΙΚΗΣ ΜΕΛΕΤΗΣ ΤΩΝ ΠΑΡΑΓΟΝΤΩΝ Α) ΑΝΤΟΧΗ ΕΔΑΦΟΥΣ, Β) ΚΥΚΛΟΦΟΡΙΑΚΟΥ ΦΟΡΤΟΥ, Γ) ΤΟΠΙΚΟΥ ΠΑΡΑΓΟΝΤΑ, Δ) ΠΟΣΟΤΗΤΟΣ ΜΕΤΑΦΕΡΟΜΕΝΗΣ ΞΥΛΕΙΑΣ, Ε) ΣΥΝΘΕΣΗ ΚΥΚΛΟΦΟΡΙΑΣ. ΣΤΗΝ ΔΙΑΤΡΙΒΗ ΚΑΤΟΠΙΝ ΜΕΛΕΤΗΣ ΤΩΝ ΠΑΡΑΠΑΝΩ ΠΑΡΑΓΟΝΤΩΝ …
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Η ΦΩΤΟΣΥΝΘΕΣΗ ΤΟΥ ΦΥΤΟΥ ΤΗΣ ΠΙΚΡΟΔΑΦΝΗΣ (NERIUM OLEANDER) ΚΑΙ Ο ΦΩΤΟΣΥΝΘΕΤΙΚΟΣ ΜΗΧΑΝΙΣΜΟΣ ΑΥΤΟΥ
… CHANGES OF PHOTOSYNTHESIS, CHLOROPLAST PIGMENTS AND PIGMENT -PROTEIN COMPLEXES AS WELL AS THE ULTRASTRUCTURAL CHANGES OF CHLOROPLASTS IN NERIUM OLEANDER WERE STUDIED IN THIS WORK. ACCORDING TO OUR RESULTS THE LEVELS OF CHLOROPHYLLS AND ESPECIALLY OF CHLB AS WELL AS THOSE OF LHCP(9/B)- …
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ΣΧΕΣΗ ΕΤΕΡΟΖΥΓΩΤΙΑΣ ΙΣΟΕΝΖΥΜΙΚΩΝ ΓΟΝΙΔΙΑΚΩΝ ΘΕΣΕΩΝ ΚΑΙ ΕΤΕΡΩΣΗΣ ΣΕ ΖΕΥΓΗ ΚΑΘΑΡΩΝ ΣΕΙΡΩΝ ΑΡΑΒΟΣΙΤΟΥ (ZEA MAYS L.) ΔΙΑΦΟΡΕΤΙΚΗΣ ΓΕΝΕΑΛΟΓΙΚΗΣ ΠΡΟΕΛΕΥΣΗΣ
… BETWEEN GENETIC DISTANCE OF INBRED LINES AND HETEROSIS OF THEIR SIMPLE HYBRIDS. FOR THIS PURPOSE SIXTEEN INBRED LINES OF DIFFERENT PEDIGREE AND THE SEVENTY FIVE SIMPLE HYBRIDS WHICH WERE DERIVED FROM CROSSES AMONG THEM WERE TESTED ON TRIALS IN TWO REGIONS. STARCH GEL ELECTROPHORESIS WAS …
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