Relevant bibliographies by topics / Fishery management – Africa, Southern

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Academic literature on the topic 'Fishery management – Africa, Southern'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Fishery management – Africa, Southern"

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Van Der Vyver, J. S. F., W. H. H. Sauer, N. J. McKeown, D. Yemane, P. W. Shaw, and M. R. Lipinski. "Phenotypic divergence despite high gene flow in chokka squid Loligo reynaudii (Cephalopoda: Loliginidae): implications for fishery management." Journal of the Marine Biological Association of the United Kingdom 96, no. 7 (December 9, 2015): 1507–25. http://dx.doi.org/10.1017/s0025315415001794.

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The commercially important chokka squid Loligo reynaudii occurring in South African waters is currently managed on a single-unit stock hypothesis. We tested this assumption through a spatial comparison of the morphology throughout the distributional range of the species. Forty-three morphometric characters were measured from 1079 chokka collected off the south coast of South Africa, the west coast of South Africa, and southern Angola. While no significant differences were found in the hard body parts, results from classification analysis showed that though all four types of morphometric attributes (soft body parts, beaks, statoliths, sucker rings) resulted in some separation, the most consistent separation of samples from the three regions was based on soft body part morphometric characters. On average, though dependent on the model, the overall correct classification rate ranged from 0.68–0.99 for males and 0.7–0.99 for females in all three regions. Previous DNA analysis had revealed some genetic differences between west coast and south coast samples, suggesting the confluence of the cold Benguela and warm Agulhas current may act as the approximate point of a phenotypic and possible genetic breakpoint. Finer scale genetic analysis of samples collected across the Benguela–Agulhas confluence reported no significant genetic structuring in this area suggesting environmental heterogeneity and not restriction of genetic flow/isolation as the primary driver of the observed phenotypic divergence.
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Lombard, A. T., B. Reyers, L. Y. Schonegevel, J. Cooper, L. B. Smith-Adao, D. C. Nel, P. W. Froneman, et al. "Conserving pattern and process in the Southern Ocean: designing a Marine Protected Area for the Prince Edward Islands." Antarctic Science 19, no. 1 (February 28, 2007): 39–54. http://dx.doi.org/10.1017/s0954102007000077.

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South Africa is currently proclaiming a Marine Protected Area (MPA) in the Exclusive Economic Zone (EEZ) of its sub-Antarctic Prince Edward Islands. The objectives of the MPA are to: 1) contribute to a national and global representative system of MPAs, 2) serve as a scientific reference point to inform future management, 3) contribute to the recovery of the Patagonian toothfish (Dissostichus eleginoides), and 4) reduce the bird bycatch of the toothfish fishery, particularly of albatrosses and petrels. This study employs systematic conservation planning methods to delineate a MPA within the EEZ that will conserve biodiversity patterns and processes within sensible management boundaries, while minimizing conflict with the legal toothfish fishery. After collating all available distributional data on species, benthic habitats and ecosystem processes, we used C-Plan software to delineate a MPA with three management zones: four IUCN Category Ia reserves (13% of EEZ); two Conservation Zones (21% of EEZ); and three Category IV reserves (remainder of EEZ). Compromises between conservation target achievement and the area required by the MPA are apparent in the final reserve design. The proposed MPA boundaries are expected to change over time as new data become available and as impacts of climate change become more evident.
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Punt, A. "A comparison of fishery models with and without cannibalism with implications for the management of the Cape hake resource off southern Africa." ICES Journal of Marine Science 51, no. 1 (February 1994): 19–29. http://dx.doi.org/10.1006/jmsc.1994.1003.

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Dahlet, Lol I., Nicola Downey-Breedt, Gabriel Arce, Warwick H. H. Sauer, and Maria A. Gasalla. "Comparative study of skipjack tuna Katsuwonus pelamis (Scombridae) fishery stocks from the South Atlantic and western Indian oceans." Scientia Marina 83, no. 1 (March 26, 2019): 19. http://dx.doi.org/10.3989/scimar.04804.22c.

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The skipjack tuna, Katsuwonus pelamis, inhabits tropical and subtropical oceans the world over, and contributes substantially to total tuna catches. Both fishing pressure and anthropic influences affect skipjack populations, impacting on economic returns and investment. The present study analyses and compares spatial time series of catch and catch per unit effort (CPUE), of pole-and-line fishing of skipjack tuna from Brazil, South Africa and the Maldives. Both regional and inter-regional analyses were conducted for the period 1970-2014 in order to ultimately investigate potential associations between these fisheries, climatic conditions and the El Niño Southern Oscillation (ENSO). Correlation tests and spatial mapping tools were used. From 2004 to 2011, South African skipjack catches correlated positively with Brazilian ones and negatively with Maldivians. CPUEs from the Brazilian and Maldivian skipjack fisheries showed a significant positive correlation in the period 1982-1993. Yearly catches from all regions were strongly associated with the Northern Oscillation Index (p < 0.001), an ENSO index. This study reflects an effort to articulate an inter-regional appraisal of skipjack pole-and-line fisheries embedded in the context of a globally changing climate, in the face of which emerging economies are the most vulnerable. Evidence of common patterns influencing these fisheries should encourage international South-South cooperative management and understanding of the resource.
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McGlue, M. M., S. J. Ivory, J. R. Stone, A. S. Cohen, T. M. Kamulali, J. C. Latimer, M. A. Brannon, I. A. Kimirei, and M. J. Soreghan. "Solar irradiance and ENSO affect food security in Lake Tanganyika, a major African inland fishery." Science Advances 6, no. 41 (October 2020): eabb2191. http://dx.doi.org/10.1126/sciadv.abb2191.

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Food security in a warming world is a grave concern for rapidly growing impoverished populations. Low-latitude inland fisheries provide protein for millions of rural poor, yet the impacts of high-frequency climate oscillations on these aquatic ecosystems are unknown. Here, we present a sub-annual–to–annual resolution paleolimnological reconstruction of upwelling, productivity, and algal composition at Lake Tanganyika, one of Africa’s largest landlocked fisheries. The data reveal increases in diatom production at centennial-scale solar irradiance maxima, and interannual variability in upwelling linked to La Niña. Our study shows that interactions between global climatic controls and El Niño–Southern Oscillation teleconnections exert profound influences on the foundation of Lake Tanganyika’s food web. Adapting long-term management practices to account for high-frequency changes in algal production will help safeguard inland fish resources.
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MCCLANAHAN, T. R., H. GLAESEL, J. RUBENS, and R. KIAMBO. "The effects of traditional fisheries management on fisheries yields and the coral-reef ecosystems of southern Kenya." Environmental Conservation 24, no. 2 (June 1997): 105–20. http://dx.doi.org/10.1017/s0376892997000179.

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Many traditions of coastal peoples may be viewed as traditional forms of marine conservation because, like modern fisheries management, they restrict fishing gear, fishing times, and places, but their effects are little studied in practice. A study was undertaken of human culture and fisheries resources in an area of southern Kenya, designated as a national marine reserve, to determine the effect of the existing 'traditional management' on fisheries yields and on the ecological condition of the fished reefs. This area has one of the oldest and most elaborate cultural traditions concerning sacred sites and rituals of sacrifice along the Kenyan coast. The purpose of the customs is, however, to appease spirits rather than to regulate fish stocks which are traditionally seen to fluctuate independently of fishing effort. Many of these traditions have decayed in recent times as Islamization of the culture has occurred, and authority has shifted towards national organizations, weakening the effectiveness of the traditional leaders. Coincidentally, fishers have adopted new or foreign gear, colleagues, and traditions. Two adjacent landing sites (Mvuleni and Mwanyaza) have, however, successfully stopped pull seiners from landing their catch at their sites for over 20 years through passive means. Other landing sites have adopted pull seining. Both landing areas use arguments based on tradition to justify their use of gear. The two landings that restrict pull seining have higher per capita fish catches than those that do not. Nonetheless, there were no obvious differences in the ecological condition of the reefs at these two management areas; both areas were amongst the most degraded reefs reported in East Africa. Biological diversity and coral cover were reduced greatly in all these areas compared to other fished or fully-protected marine park or reserve sites established by the national government. Presently, traditional management is not effective in protecting species diversity or ecological functions, which was probably never the intention of the customs. The conflict between national organizations and local fishers arises because some resource users are concerned that the management proposed by the national organizations will eventually lead to the total loss of access to, and control of the resource by local fishers. There is, therefore, a need to resolve conflicts concerning gear use and regulation, and a need to increase awareness of the expectations and management programmes among the national and local organizations. Many of the traditional forms of management are compatible with the policies of national organizations, but confusion and conflict occur concerning enforcement and its benefits. To solve these conflicts discussions are required between traditional and national fisheries leaders to develop mutually-acceptable policies that augment and share the power of management.
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Degnbol, Poul. "Indicators as a means of communicating knowledge." ICES Journal of Marine Science 62, no. 3 (January 1, 2005): 606–11. http://dx.doi.org/10.1016/j.icesjms.2004.12.007.

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Abstract Indicators represent the link between objectives and action in management. The identification of ecosystem indicators must therefore be embedded in the decision-making process. Fisheries management can only be effective if the measures are considered legitimate by stakeholders. The choice of indicators to guide management should not be evaluated from a technical perspective alone, but also in relation to their effectiveness in communicating knowledge. More specifically, indicators should serve as a communication bridge between different knowledge discourses. Reference is often made to “local ecological knowledge” as a source that should be integrated in the process for management to be legitimate. However, while extensive studies have been made on local ecological knowledge per se, few have addressed the issue of its integration into co-management institutions with research-based knowledge. The challenge is consequently to identify indicators that have both research-based validity and reflect features that correspond to stakeholder knowledge, while relating to shared understandings of objectives and actions. This challenge is discussed from a developing-countries perspective. Problems and possible ways forward are illustrated on the basis of experiences from a range of case studies of knowledge discourses regarding living aquatic resources in southeast Asia and southern Africa. The studies have shown that the different knowledge discourses, and candidate indicators therein, relating to a specific ecosystem may be identified and characterized. Often, however, such indicators will have very little in common across knowledge discourses, and the differences cannot be overcome through a simple translation process. The perspectives of formal research-based knowledge and of fishers differ systemically, reflecting the different interests and scales of observation between the two parties. Also, fishers focus on a wider agenda than research alone, on allocation problems and conflicts among users. Allocation/access issues must therefore be addressed as an integral aspect of an ecosystem approach if management is to be effective.
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Petersen, SL, MB Honig, PG Ryan, R. Nel, and LG Underhill. "Turtle bycatch in the pelagic longline fishery off southern Africa." African Journal of Marine Science 31, no. 1 (April 2009): 87–96. http://dx.doi.org/10.2989/ajms.2009.31.1.8.779.

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Petersen, S. L., M. B. Honig, P. G. Ryan, and L. G. Underhill. "Seabird bycatch in the pelagic longline fishery off southern Africa." African Journal of Marine Science 31, no. 2 (August 1, 2009): 191–204. http://dx.doi.org/10.2989/ajms.2009.31.2.7.879.

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Petersen, S. L., M. B. Honig, P. G. Ryan, L. G. Underhill, and M. Goren. "Seabird bycatch in the demersal longline fishery off southern Africa." African Journal of Marine Science 31, no. 2 (August 1, 2009): 205–14. http://dx.doi.org/10.2989/ajms.2009.31.2.8.880.

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Dissertations / Theses on the topic "Fishery management – Africa, Southern"

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Van, der Vyver Johan Samuel Frederik. "The geographic stock structure of chokka squid, Loligo Reynaudi, and its implications for management of the fishery." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1012973.

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It is currently hypothesised that the chokka squid (Loligo reynaudi) consist of a single stock. This was tested through a spatial comparison of the morphology of this species. Forty three morphometric characters were measured from 1079 chokka squid collected from three regions: the south coast of South Africa, the west coast of South Africa, and southern Angola. While no significant differences were found for the hard body parts, results from discriminant function analyses showed the soft body morphometric characters from each of the three regions differed, with an overall correct classification rate of 100% for males and 99% for females in all three regions. Due to the existing model being used to assess the resource currently being updated it was not feasible to apply this model to the area-disaggregated data from this study. Rather, the CPUE trends and catches from the area-disaggregated data were compared against those of the area-aggregated data, as a first attempt to discern any appreciable differences which would suggest the use of disaggregated data in future assessments. Both the trawl and jig CPUE trends from the area-disaggregated analysis differed only slightly from those of the area-aggregated data. Similarly, the spring and autumn biomass trends for the main spawning area (east of 22°E) followed the same trends as for the full area. It is therefore concluded that there is currently no need to assess the resource on an area-disaggregated basis.
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Maggs, Jade Quinton. "Movement of coastal fishery species in Southern Africa: research trends, characterisation of behaviours and a case study on fishery implications." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/60574.

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Movement of fishes is an integral part of their daily life, but has significant implications for fishery management. As with nearly all coastal countries, South Africa relies on coastal fisheries as a renewable resource, but many stocks have been overexploited for decades. Although it has long been recognised that an understanding of fish movement is necessary for effective management, it is with some difficulty that the subject has been studied in the past. In recent years, however, improvements in technology have provided the means for more in-depth investigations into fish movement. This research has revealed a range of complex movement behaviours. Movement in fishes occurs on a variety of temporal and spatial scales leading to the characteristic patterns of distribution and abundance observed in marine ecosystems. Fishes move nearly constantly in search of food, shelter or reproductive opportunities. Observations of behaviours such as long-term site fidelity, longdistance migration and natal homing are enabling ecologists to understand patterns of distribution and abundance within a species' range. Fish movement around the South African coast has been studied on numerous occasions but this has largely been confined to studies on single species. Movement behaviour of multiple species has been studied, but this has been limited to spatially localised marine protected area research. There has been little attempt in southern Africa to synthesize interspecific movement behaviour over wide spatial scales.Unprecedented concern over the biological effects of overexploitation, together with rapid technological advances in biotelemetry, have provided the impetus for much research, on a global scale, into the movement of marine animals. I reviewed 101 marine and estuarine fish movement studies from southern Africa, published from 1928 to 2014, with the aim of synthesising research trends and findings. Trends showed an increasing emphasis on fish movement research in publications in the sub-tropical and warm-temperate biogeographic regions along the south and east coasts of southern Africa. Although 63% of publications featured only marine studies, research into fine-scale habitat use in estuaries has been on the increase, concomitant with increasing accessibility of biotelemetry. Overall, 26 fish families were identified in the surveyed literature with regionally endemic sparids featuring in 32% of the publications. Ten movement themes were identified in the surveyed literature, including broad-scale movement patterns, which featured in 68% of studies, followed by fine- scale habitat usage (33%) and protected areas (26%). The most prominent phenomenon, emerging from this research, is that of partial migration, which describes the occurrence of resident and migratory behaviour within a coexisting animal population. Substantial progress has also been made in unravelling the complexities of fine-scale movements in marine reserves and habitat usage in estuaries. While this knowledge has enabled more effective management of South Africa's multi-user, multi-species fisheries, focus should now be directed at improving our understanding of the commonalities in movement behaviour, the associated driving forces behind this behaviour and the extent of movement across reserve boundaries. Mark-recapture data, collected over the past 30 years by the Oceanographic Research Institute’s Cooperative Fish Tagging Project (ORICFTP), were used to investigate broad- scale movement patterns of 30 prominent coastal fishery species (Chapter 4). Fishes were tagged with plastic dart tags along the coastline of southern Africa from Angola to Mozambique. This exercise yielded more than 10000 recaptures. The 30 chosen species represented 14 families, although 12 species belonged to a single family (Sparidae). Overall, 67% of recaptures were reported from the original tagging locality and 73% were recorded within 5 km of the tagging locality. The remaining observations extended from 6-3000 km. Movements were assigned to four distance bins (0-5 km, 6-50km, 51-500km and >500 km) and modelled with an ordinal logistic regression. Species, life-stage (juvenile/adult) and time- at-liberty were included as predictor variables. Model coefficients were then included in a cluster analysis, which produced two primary groupings of species (Category I and II), with two sub-groupings (Category IIa and IIb). Category I species were characterised by wide-ranging movements, greatest median recapture length and highest trophic levels. Category II species were characterised by residency, lower median recapture length and lower trophic levels. These findings have implications for fisheries management. Exploitation of resident species may lead to localised depletion, but their diffuse spatial distribution may offer some resilience. In contrast, even localised targeting of migratory species may pose a population level risk if individuals are known to aggregate. Life-cycle diversity or intra-population variability describes the existence of alternative strategies or tactics among coexisting individuals within an animal population (Chapter 5). Partial migration is a specific case of life-cycle diversity where coexisting groups exhibit either resident or migratory (wide-ranging) behaviour within a single population. Mark- recapture data collected under the auspices of the ORICFTP were used to investigate the occurrence and nature of life-cycle diversity in the movement behaviour of five non- diadromous fish species around the coastline of southern Africa. Among the five species were three teleosts (Category I and IIa) and two elasmobranchs (Category I). A fish was considered to have remained resident if recaptured within 0-5 km after 365 days at liberty. A fish was considered to have undertaken a wide-ranging movement if recaptured more than 50 km away from the release site in 365 days or less. A total of 1848 individuals from the five study species were recaptured during the study, of which 73% of the observations were classified as being resident. Binomial logistic regression confirmed that species, life-stage (juvenile/adult) and ecoregion were significant (p < 0.001) predictors of the probability of wide-ranging behaviour. A Gaussian model confirmed that species and ecoregion were also significant (p < 0.001) predictors of direction and distance of wide-ranging movement. However, the direction and distance of wide-ranging movements in juveniles did not differ significantly (p > 0.05) to that of adults. The median growth rate was mostly greater in wide- ranging individuals; however, this was only statistically significant (p < 0.05) in two cases. These findings provide unequivocal evidence of life-cycle diversity in five fish species, with vastly different life-histories. This ecological phenomenon may provide species resilience at the population level and needs to be considered in fisheries management initiatives. The movement of fishes is a fundamental aspect to consider when designing fishery management regimes. Unfortunately, traditional management strategies have often disregarded movement behaviour to the detriment of fish populations (Chapter 6). As a case study, the management of Lichia amia (Category I: wide-ranging) was evaluated in the context of its movement behaviour. Long-term catch-per-unit-effort (CPUE) datasets were examined for three South African recreational fishery sectors. The CPUE was standardised using generalized linear models (delta-Gamma/hurdle approach) to reduce the effect of factors other than abundance. Factors that were available for this purpose were year, month and locality/zone. Year was included in every model as the primary objective was to detect trends in abundance over time. Although standardised CPUE for all sectors showed an overall long-term decline, there was considerable variability in trends between the different recreational sectors and between datasets. Contrasting trends between competitive shore angling and general shore angling datasets were ascribed to hyperstability in competitive CPUE data. Hyperstability in this case was mostly influenced by rapidly improving technology, techniques and communication networks amongst competitive anglers. Month and locality were significant factors explaining the probability of catching L. amia. This suggests that the predictable aggregatory behaviour of this species could further compound the observed CPUE hyperstability. Although the CPUE responded positively for six years after implementation of the first minimum size and bag limits, and for one year after the decommercialisation of the species, these regulations and their amendments failed to arrest a long-term decline in the CPUE despite the ample evidence for hyperstability. It is clear from this case study that the predictable nature of wide-ranging behaviour in L. amia has made the population vulnerable to exploitation. This has led to the demise in the population, which could have been worse if not for the occurrence of intra-population variability in its movement behaviour, which may provide some measure of resilience.
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Lam, Yan-yan Vivian. "The shark fisheries of Southern China and the reproductive biology of the spadenose shark, Scoliodon laticaudus." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43278541.

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Ramoejane, Mpho. "Genetic diversity, evolutionary relationships and conservation of southern African Labeo fishes in relation to water management." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/5209.

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Labeo spp. are large, herbivorous fishes that are important components of aquatic ecosystems and are a high conservation priority in South Africa. This thesis contributes to determination of conservation priorities for Labeo umbratus (Smith 1841) by resolving the taxonomic status of this species in the evolutionary context of southern African Labeo spp., assessing the presence of unique lineages in historically isolated river basins, and assessing the threat of intra- and interspecific hybridisation associated with introductions. Phylogenetic analyses of five DNA sequence data sets (cytochrome c oxidase subunit I gene [COI], cytochrome b gene [Cyt b], Recombination activating gene 1 [Rag1], COI+Rag1 and COI+Cyt b+Rag1) showed that the Labeo umbratus group (sensu Reid, 1985), which comprises the species Labeo umbratus, Labeo capensis (Smith 1841), Labeo seeberi Gilchrist and Thompson 1911 and Labeo rubromaculatus Gilchrist and Thompson 1913, is monophyletic, morphologically distinct and geographically disjunct from other African Labeo spp. groups except in the Tugela River system were L. rubromaculatus co-occurs with Labeo molybdinus Du Plessis 1963. Phylogeographic analysis of mitochondrial DNA (Cyt b) sequence data demonstrated that the populations of the L. umbratus from the Orange and the southward-flowing river systems are reciprocally monophyletic and were identified as evolutionary significant units. The populations in the southward-flowing river systems were further divided into southwestern (Gourits and Gamtoos) and southeastern (Sundays, Bushmans, Great Fish, Keiskamma, Buffalo and Nahoon) polyp hyletic sublineages. Four management units (Gourits Basin; Gamtoos Basin; Sundays+Bushmans+Great Fish River Basins; and Keiskamma+Buffalo+Nahoon River Basin) were not reciprocally monophyletic but were proposed on the basis of containing unique haplotype frequencies for conservation purposes. To evaluate the threat of hybridisation to the genetic integrity of L. umbratus, the occurrence of Labeo umbratus x L. capensis hybrids was investigated using mtDNA Cyt b and nDNA S7 intron sequence data and morphological data. Genetic evidence for interspecific hybridisation was detected for populations in two impoundments, Hardap Dam (Orange River Basin) and Darlington Dam (Sundays River Basin, Eastern Cape, South Africa). Some putative hybrids were identifiable morphologically on account of intermediacy between the parental species in meristic and morphometric characters. Translocation via direct stocking (Hardap Dam) or via an inter-basin water transfer scheme (Darlington Dam) was identified as a driver for hybridisation. Introductions associated with an inter-basin water transfer scheme has resulted in introgression between the previously isolated Orange River and southern lineages of L. umbratus. Further translocation of fish from these affected areas to non-contaminated river systems and impoundments such as Kat River (Great Fish River) and Slagboom (Sundays River) should be avoided.
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Punt, A. E. "Model selection for the dynamics of southern African hake resources." Thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/23374.

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Martin, Lindsay. "Fisheries management, fishing rights and redistribution within the commercial chokka squid fishery of South Africa." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1007500.

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The objective of this thesis is to analyse the management and redistribution policies implemented in the South African squid industry. This is done within the broader context of fisheries policies that have been implemented within the South African fishing industry as the squid industry has developed. The study therefore has an institutional basis, which reviews the development of institutional mechanisms as they have evolved to deal fisheries management problems. These mechanisms (which can either be formal or informal) consist of committees, laws and constitutions that have developed as society has progressed. Probably the most prominent of these, in terms of current fisheries policy, is the Marine Living Resources Act (MLRA) of 1998. The broad policy prescription of the MLRA basically advocates the sustainable utilisation of marine resources while outlining the need to restructure the fishing industry to address historical imbalances and to achieve equity. It is this broad objective that this thesis applies to the squid fishery. The primary means of achieving the above objective, within the squid industry, has been through the reallocation of permit rights. These rights also provide the primary means by which effort is managed. A disruption in the rights allocation process therefore has implications for resource management as well. Permits rights can be described as a form of use right or propertY right. These rights are structured according to their operational-level characteristics, or rules. Changing these rules can thus affect the efficiency or flexibility of a rights based system. This is important because initial reallocation of rights, by the Department of Environmental Affairs and Tourism (DEAT), was based on an incomplete set of rights. This partly led to the failure of early redistribution attempts resulting in a "paper permit" market. Nevertheless, this thesis argues that redistribution attempts were based on ill-defined criteria that contributed to the failure described above. In addition to this the method through which redistribution was attempted is also questionable. This can be described as a weak redistribution strategy that did not account for all equity criteria (i.e. factors like capital ownership, employment or relative income levels). This thesis thus recommends, among other things, that an incentive based rights system be adopted and that the design of this system correctly caters of the operational-level rules mentioned above. In addition to this a strong redistribution, based on fishing capital, ownership, income and the transfer of skills, should be implemented.
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Oosthuizen, Ané. "A development and management framework for a new Octopus vulgaris fishery in South Africa." Thesis, Rhodes University, 2004. http://eprints.ru.ac.za/21/1/A.Oosthuizen_PhD.pdf.

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A new policy incorporating an operational protocol was developed for the establishment of new fisheries in South Africa. The common octopus, Octopus vulgaris was used as a candidate species for the project. The operational protocol consisted of a three-phased development framework, namely information gathering (Phase 0), an experimental fishery (Phase 1) and the final implementation of a commercial fishery (Phase 2). The present study focussed on phase 0 of this theoretical framework and protocol and was implemented by using a proposed octopus pot fishery in South Africa as a case study. Phase 0 included a desktop study, information gathering in the field, an economic feasibility study and the formulation of a Fishery Management Plan and experimental design for the fishery. Information gaps identified during the desktop study were addressed during field investigations into the population structure and biology of O. vulgaris along the southeast coast. Immature females were found to use the intertidal area to feed and grow before migrating to the subtidal area to mature and spawn. Mean size differed substantially between intertidal and subtidal areas, with larger octopus found subtidally. Age and growth trials using tetracycline as a marker showed that O. vulgaris deposit daily growth lines in their beaks. A genetic study showed that there is most likely only one panmitic population along the coast. The economic feasibility study indicated that a longline pot fishery could be feasible provided a 30% catch in 6600 pots/month is attained. Only existing, debt-free vessels should be used in this fishery. The Fishery Management Plan proposed in this study includes management measures such as effort limitation of licences and gear, size restrictions, vessel monitoring systems, and observer programmes. Based on the population dynamics and biology of O. vulgaris it is suggested that a precautionary approach to developing fisheries for this species in both the inter- and subtidal areas along the South African coast.
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Haupt, Nico Retief. "Project management in Southern Africa: a best practices analysis." University of South Africa, 2007. http://hdl.handle.net/10500/96.

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This study covers an investigation into project management best practices in Southern Africa. The purpose of the research was to determine which of the current accepted project management tools and techniques are seen as critical in the region. It also focuses on determining any external or internal factors that hamper effective development of project management in the Southern African region. The study further tries to determine whether there are any noticeable differences between accepted project management practices in the developed world and practices used in the region. The study was conducted using a survey with a mix of open and scaled questions and was sent out to a number of companies selected because they employ established project managers. A total number of 400 questionnaires were sent out and 42 completed questionnaires were received from respondents. The study found that there are no significant differences between the techniques used for project management in Southern Africa and techniques used in the rest of the world. There are, however, several factors influencing project management development in the region that are unique to the region including a severe shortage of skilled people and infrastructure problems. There is also a lack of knowledge about project management practices amongst respondents and amongst other members of their organizations including senior management. This lack of knowledge combined with the shortage of skilled people can result in serious problems with the execution and management of projects in the Southern African region.
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Walmsley, Sarah Ann. "The assessment and management of bycatch and discards in the South African demersal trawl fishery." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1005071.

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Over the past few decades it has become recognised that an ecosystem approach is required to manage world fisheries. Management strategies must ensure that non-target (bycatch) as well as target catches are sustainable. To achieve this, detailed commercial catch and biological information is required. The composition of catches made by trawlers operating off the south and west coasts of South Africa was investigated. Distinct fishing areas were identified on each coast, based on target species and fishing depth. Catch composition differed markedly among the areas defined. Although hake Merluccius sp. dominated South Coast catches, a large proportion of the catch was composed of bycatch. On the West Coast, hake dominated catches and this domination increased with increasing depth. On both coasts approximately 90% of the observed nominal catch was processed and landed. Estimates of annual discards suggested that the fishery discarded 38 thousand tons of fish per annum (16% of the nominal trawl catch). The data also indicated that hake discarding, the capture of linefish and the increased targeting of high value species might be cause for concern. Spatial analysis indicated that a variety of factors such as trawling position, catch size and catch composition affects bycatch dynamics. The monkfish Lophius vomerinus is a common bycatch species that has been increasingly targeted by demersal trawlers. This study showed that L. vomerinus is a slow-growing, long-lived species (West Coast males L∞ = 68.50cm TL, t₀ = -1.69yr, K = 0.10yr⁻¹; West Coast females L∞ = 110.23cm TL, t₀ = -1.54yr, K = 0.05yr⁻¹; South Coast sexes combined L∞ = 70.12cm TL, t₀ = - 0.80yr, K = 0.11yr⁻¹), that matures at approximately 6 years of age. These traits could have serious management implications for the species. Per-recruit analysis suggested that the stock might be overexploited, although further investigation is required to confirm this. Solutions were suggested for each of the concerns raised, taking cognisance of the differences observed between the South and West Coasts and the economic dependence of South Coast companies on bycatch. The needs of future research were considered.
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Ngulube, Mzoma R. "Ecology and management of Uapaca kirkiana in southern Africa." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320397.

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Books on the topic "Fishery management – Africa, Southern"

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Marshall, B. E. Small water bodies and their fisheries in southern Africa. Rome: Food and Agriculture Organization of the United Nations, 1994.

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Mohamed, Najma. Co-governing natural resources in southern Africa: Lessons from fisheries co-management, Malawi & conservation co-management, South Africa. [Harare]: Centre for Applied Social Sciences, University of Zimbabwe, 2001.

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FAO Regional Workshop on the Elaboration of National Plans of Action to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing (2003 Kariba, Zimbabwe). Report of the FAO regional workshop on the elaboration of national plans of action to prevent, deter and eliminate illegal, unreported and unregulated fishing: Southern and East Africa subregion : Kariba, Zimbabwe, 24-28 November 2003. Rome: Food and Agriculture Organization of the United Nations, 2003.

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FAO, Regional Workshop on the Elaboration of National Plans of Action to Prevent Deter and Eliminate Illegal Unreported and Unregulated Fishing (2004 Penang Malaysia). Report of the FAO Regional Workshop on the Elaboration of National Plans of Action to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing, Southern and East Africa Subregion: Penang, Malaysia, 10-14 October 2004. Rome: Food and Agriculture Organization of the United Nations, 2005.

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Tourism management in Southern Africa. Cape Town: Pearson Education, 2003.

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D, Taylor R. Elephant management in southern Africa. Causeway, Harare, Zimbabwe: WWF Multispecies Project, 1993.

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Community, Southern African Development. Southern Africa environment outlook. Gaborone, Botswana: SADC, 2008.

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Region, Canada Dept of Fisheries and Oceans Pacific. Development of troll fishery management models for southern British Columbia. Nanaimo, B.C: Dept. of Fisheries and Oceans, 1987.

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B, Jones Brian T., ed. Elephants in southern Africa: Management issues and options. Harare, Zimbabwe: WWF--SARPO, 2005.

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Smith, Christopher. Small arms management and peacekeeping in southern Africa. New York: United Nations, 1996.

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Book chapters on the topic "Fishery management – Africa, Southern"

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Laing, Mark D., and Hussein Shimelis. "Integrated pest management in Southern Africa." In Transforming Agriculture in Southern Africa, 104–13. Abingdon, Oxon ; New York, NY : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9780429401701-15.

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Vanlauwe, Bernard, Pauline Chivenge, and Shamie Zingore. "Soil fertility maintenance and nutrient management for agricultural transformation." In Transforming Agriculture in Southern Africa, 67–76. Abingdon, Oxon ; New York, NY : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9780429401701-10.

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Vanlauwe, Bernard, Pauline Chivenge, and Shamie Zingore. "Soil fertility maintenance and nutrient management for agricultural transformation." In Transforming Agriculture in Southern Africa, 67–76. Abingdon, Oxon ; New York, NY : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9780429401701-11.

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Pornpinatepong, Kunlayanee, Sakchai Kiripat, Sinad Treewanchai, Sukampon Chongwilaikasaem, Chotima Pornsawang, Pathomwat Chantarasap, and Chantip Chandee. "Pollution Control and Sustainable Fishery Management in Southern Songkhla Lake, Thailand." In Marine and Coastal Ecosystem Valuation, Institutions, and Policy in Southeast Asia, 155–83. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0141-3_8.

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Du Plessis, J. A. "Integrated Water Management at Local Government Level for Southern Africa." In Water Resources Management, 209–30. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5711-3_15.

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Fourie, Pieter. "AIDS, Poverty and Development in Southern Africa." In The Political Management of HIV and AIDS in South Africa, 25–49. London: Palgrave Macmillan UK, 2006. http://dx.doi.org/10.1057/9780230627222_2.

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Keitumetse, Susan O. "Southern Africa: Cultural Heritage Tourism Development and Management." In Encyclopedia of Global Archaeology, 1–12. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-51726-1_13-2.

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Keitumetse, Susan O. "Southern Africa: Cultural Heritage Tourism Development and Management." In Encyclopedia of Global Archaeology, 6873–83. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-0465-2_13.

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Keitumetse, Susan O. "Southern Africa: Cultural Heritage Tourism Development and Management." In Encyclopedia of Global Archaeology, 10028–39. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-30018-0_13.

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Horwitz, Frank M. "Human Resource Management in Southern African Multinational Firms: Considering an Afro-Asian Nexus." In Effective People Management in Africa, 126–51. London: Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137337177_6.

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Conference papers on the topic "Fishery management – Africa, Southern"

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Toral-Granda, M. V., C. L. Moloney, J. M. Harris, and B. Q. Mann. "Ecosystem Impacts of the KwaZulu-Natal Reef Fishery, South Africa: An Exploratory Model." In Ecosystem Approaches for Fisheries Management. Alaska Sea Grant, University of Alaska Fairbanks, 1999. http://dx.doi.org/10.4027/eafm.1999.19.

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Gondo, Reniko, and Oluwatoyin D. Kolawole. "Institutions and Transboundary Water Resources Management in Southern Africa." In Environment and Water Resource Management / 837: Health Informatics / 838: Modelling and Simulation / 839: Power and Energy Systems. Calgary,AB,Canada: ACTAPRESS, 2016. http://dx.doi.org/10.2316/p.2016.836-026.

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Malan, A., L. Pretorius, and JHC Pretorius. "A Framework for Increasing Project Maturity and Capability in Southern Africa." In PICMET '07 - 2007 Portland International Conference on Management of Engineering & Technology. IEEE, 2007. http://dx.doi.org/10.1109/picmet.2007.4349553.

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Akapelwa, K. "Power interchange opportunities in Southern Africa - evolution towards a regional power pool." In Fourth International Conference on Power System Control and Management. IEE, 1996. http://dx.doi.org/10.1049/cp:19960251.

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Nyumbeka, Dumisani, and Janet Wesson. "Using Mobile Computing to Support Malnutrition Management in South Africa." In the Southern African Institute for Computer Scientist and Information Technologists Annual Conference 2014. New York, New York, USA: ACM Press, 2014. http://dx.doi.org/10.1145/2664591.2664622.

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Coertze, Jacques, Johan van Niekerk, and Rossouw von Solms. "A web-based Information Security Management Toolbox for small-to-medium enterprises in Southern Africa." In 2011 Information Security for South Africa (ISSA). IEEE, 2011. http://dx.doi.org/10.1109/issa.2011.6027515.

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Oladejo, Ismaheel O., and Komla A. Folly. "Management of Grid-Connected Micro-grid Using Game Theory Approach." In 2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA). IEEE, 2019. http://dx.doi.org/10.1109/saupec/robmech/prasa46261.2019.9116579.

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Pretorius, R., and B. J. Kotze. "An Artificial Intelegence Energy Management System For An Educational Building." In 2021 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA). IEEE, 2021. http://dx.doi.org/10.1109/saupec/robmech/prasa52254.2021.9377027.

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Mlitwa (Mlita), Nhlanhla B. W., and Musharu Simbarashe. "A CLOUD-BASED ARCHITECTURE FOR A REGIONAL TRANS UNIVERSITY LEARNING MANAGEMENT SYSTEM COLLABORATION ON DIGITAL CONTENT DELIVERY ACROSS SOUTHERN AFRICA." In 11th International Conference on Education and New Learning Technologies. IATED, 2019. http://dx.doi.org/10.21125/edulearn.2019.1903.

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Basson, C. I., W. E. Dharmilingum, C. E. Reddy, A. P. Singh, and R. Stopforth. "Gamification and Game Development for Educational Agile Operations Management in Robotics Research." In 2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA). IEEE, 2019. http://dx.doi.org/10.1109/robomech.2019.8704798.

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Reports on the topic "Fishery management – Africa, Southern"

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Kimaru, G., and B. Jama. Improving land management in eastern and southern Africa: a review of practices and policies ICRAF Working Paper no. 1. World Agroforestry Centre (ICRAF), 2006. http://dx.doi.org/10.5716/wp06113.pdf.

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Kitalyi, A., S. Mwebaze, H. Muriuki, C. Mutagwaba, M. Mgema, and O. Lungu. The role of livestock in integrated land management: RELMA's experience in eastern and southern Africa ICRAF Working paper no. 25. World Agroforestry Centre (ICRAF), 2006. http://dx.doi.org/10.5716/wp06173.pdf.

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Mugo, Fridah. Rapid desk-based study: donor and partner programmes in sustainable forest management and fuelwood value chains in Eastern and Southern Africa. Evidence on Demand, February 2014. http://dx.doi.org/10.12774/eod_hd.feb2014.mugo.

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African Open Science Platform Part 1: Landscape Study. Academy of Science of South Africa (ASSAf), 2019. http://dx.doi.org/10.17159/assaf.2019/0047.

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This report maps the African landscape of Open Science – with a focus on Open Data as a sub-set of Open Science. Data to inform the landscape study were collected through a variety of methods, including surveys, desk research, engagement with a community of practice, networking with stakeholders, participation in conferences, case study presentations, and workshops hosted. Although the majority of African countries (35 of 54) demonstrates commitment to science through its investment in research and development (R&D), academies of science, ministries of science and technology, policies, recognition of research, and participation in the Science Granting Councils Initiative (SGCI), the following countries demonstrate the highest commitment and political willingness to invest in science: Botswana, Ethiopia, Kenya, Senegal, South Africa, Tanzania, and Uganda. In addition to existing policies in Science, Technology and Innovation (STI), the following countries have made progress towards Open Data policies: Botswana, Kenya, Madagascar, Mauritius, South Africa and Uganda. Only two African countries (Kenya and South Africa) at this stage contribute 0.8% of its GDP (Gross Domestic Product) to R&D (Research and Development), which is the closest to the AU’s (African Union’s) suggested 1%. Countries such as Lesotho and Madagascar ranked as 0%, while the R&D expenditure for 24 African countries is unknown. In addition to this, science globally has become fully dependent on stable ICT (Information and Communication Technologies) infrastructure, which includes connectivity/bandwidth, high performance computing facilities and data services. This is especially applicable since countries globally are finding themselves in the midst of the 4th Industrial Revolution (4IR), which is not only “about” data, but which “is” data. According to an article1 by Alan Marcus (2015) (Senior Director, Head of Information Technology and Telecommunications Industries, World Economic Forum), “At its core, data represents a post-industrial opportunity. Its uses have unprecedented complexity, velocity and global reach. As digital communications become ubiquitous, data will rule in a world where nearly everyone and everything is connected in real time. That will require a highly reliable, secure and available infrastructure at its core, and innovation at the edge.” Every industry is affected as part of this revolution – also science. An important component of the digital transformation is “trust” – people must be able to trust that governments and all other industries (including the science sector), adequately handle and protect their data. This requires accountability on a global level, and digital industries must embrace the change and go for a higher standard of protection. “This will reassure consumers and citizens, benefitting the whole digital economy”, says Marcus. A stable and secure information and communication technologies (ICT) infrastructure – currently provided by the National Research and Education Networks (NRENs) – is key to advance collaboration in science. The AfricaConnect2 project (AfricaConnect (2012–2014) and AfricaConnect2 (2016–2018)) through establishing connectivity between National Research and Education Networks (NRENs), is planning to roll out AfricaConnect3 by the end of 2019. The concern however is that selected African governments (with the exception of a few countries such as South Africa, Mozambique, Ethiopia and others) have low awareness of the impact the Internet has today on all societal levels, how much ICT (and the 4th Industrial Revolution) have affected research, and the added value an NREN can bring to higher education and research in addressing the respective needs, which is far more complex than simply providing connectivity. Apart from more commitment and investment in R&D, African governments – to become and remain part of the 4th Industrial Revolution – have no option other than to acknowledge and commit to the role NRENs play in advancing science towards addressing the SDG (Sustainable Development Goals). For successful collaboration and direction, it is fundamental that policies within one country are aligned with one another. Alignment on continental level is crucial for the future Pan-African African Open Science Platform to be successful. Both the HIPSSA ((Harmonization of ICT Policies in Sub-Saharan Africa)3 project and WATRA (the West Africa Telecommunications Regulators Assembly)4, have made progress towards the regulation of the telecom sector, and in particular of bottlenecks which curb the development of competition among ISPs. A study under HIPSSA identified potential bottlenecks in access at an affordable price to the international capacity of submarine cables and suggested means and tools used by regulators to remedy them. Work on the recommended measures and making them operational continues in collaboration with WATRA. In addition to sufficient bandwidth and connectivity, high-performance computing facilities and services in support of data sharing are also required. The South African National Integrated Cyberinfrastructure System5 (NICIS) has made great progress in planning and setting up a cyberinfrastructure ecosystem in support of collaborative science and data sharing. The regional Southern African Development Community6 (SADC) Cyber-infrastructure Framework provides a valuable roadmap towards high-speed Internet, developing human capacity and skills in ICT technologies, high- performance computing and more. The following countries have been identified as having high-performance computing facilities, some as a result of the Square Kilometre Array7 (SKA) partnership: Botswana, Ghana, Kenya, Madagascar, Mozambique, Mauritius, Namibia, South Africa, Tunisia, and Zambia. More and more NRENs – especially the Level 6 NRENs 8 (Algeria, Egypt, Kenya, South Africa, and recently Zambia) – are exploring offering additional services; also in support of data sharing and transfer. The following NRENs already allow for running data-intensive applications and sharing of high-end computing assets, bio-modelling and computation on high-performance/ supercomputers: KENET (Kenya), TENET (South Africa), RENU (Uganda), ZAMREN (Zambia), EUN (Egypt) and ARN (Algeria). Fifteen higher education training institutions from eight African countries (Botswana, Benin, Kenya, Nigeria, Rwanda, South Africa, Sudan, and Tanzania) have been identified as offering formal courses on data science. In addition to formal degrees, a number of international short courses have been developed and free international online courses are also available as an option to build capacity and integrate as part of curricula. The small number of higher education or research intensive institutions offering data science is however insufficient, and there is a desperate need for more training in data science. The CODATA-RDA Schools of Research Data Science aim at addressing the continental need for foundational data skills across all disciplines, along with training conducted by The Carpentries 9 programme (specifically Data Carpentry 10 ). Thus far, CODATA-RDA schools in collaboration with AOSP, integrating content from Data Carpentry, were presented in Rwanda (in 2018), and during17-29 June 2019, in Ethiopia. Awareness regarding Open Science (including Open Data) is evident through the 12 Open Science-related Open Access/Open Data/Open Science declarations and agreements endorsed or signed by African governments; 200 Open Access journals from Africa registered on the Directory of Open Access Journals (DOAJ); 174 Open Access institutional research repositories registered on openDOAR (Directory of Open Access Repositories); 33 Open Access/Open Science policies registered on ROARMAP (Registry of Open Access Repository Mandates and Policies); 24 data repositories registered with the Registry of Data Repositories (re3data.org) (although the pilot project identified 66 research data repositories); and one data repository assigned the CoreTrustSeal. Although this is a start, far more needs to be done to align African data curation and research practices with global standards. Funding to conduct research remains a challenge. African researchers mostly fund their own research, and there are little incentives for them to make their research and accompanying data sets openly accessible. Funding and peer recognition, along with an enabling research environment conducive for research, are regarded as major incentives. The landscape report concludes with a number of concerns towards sharing research data openly, as well as challenges in terms of Open Data policy, ICT infrastructure supportive of data sharing, capacity building, lack of skills, and the need for incentives. Although great progress has been made in terms of Open Science and Open Data practices, more awareness needs to be created and further advocacy efforts are required for buy-in from African governments. A federated African Open Science Platform (AOSP) will not only encourage more collaboration among researchers in addressing the SDGs, but it will also benefit the many stakeholders identified as part of the pilot phase. The time is now, for governments in Africa, to acknowledge the important role of science in general, but specifically Open Science and Open Data, through developing and aligning the relevant policies, investing in an ICT infrastructure conducive for data sharing through committing funding to making NRENs financially sustainable, incentivising open research practices by scientists, and creating opportunities for more scientists and stakeholders across all disciplines to be trained in data management.
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