Black Buffalo Ictiobus niger are a catostomid species native to the Mississippi River Basin with declining populations. Aquaculture is a common component of recovery plans, however little information is published on catostomid culture methods. This study developed culture techniques for Black Buffalo including tank acclimation, induced spawning, larval rearing, and protein requirements. Fish needed a lengthy acclimation (> 2 months) to reduce signs of stress. After, an induced-spawning protocol was described with gonadotropin-releasing hormone analogue. Swim-up fry did not readily consume zooplankton at first feeding but began selecting for cladocerans one week after stocked in a rearing pond. The juvenile growth study found diets containing 41% crude protein are optimal for growth. Finally, trematodes harm catfish production, and Black Buffalo are a potential control option for catfish producers. However, Black Buffalo did not consume snails, the trematode’s intermediate host, suggesting they would not be an effective trematode control.

No description available.

Cities are co-constructed places shaped by interlocking systems of oppression. The cultural practices, socioeconomic systems, and bodily experiences born out of oppressive systems impact not only how cities are designed, but how people interact with the space. This dissertation examines how embodied experiences (habits, narratives, behaviors) of neighborhood change in Buffalo, New York affect residents’ sense of belonging. Drawing from scholarship on embodiment and place attachment this study examines how the urban form and personal identities inform a person’s sense of belonging. Participants (n=6) were asked to participate in five phases: 1) a life history interview; 2) a semi-structured interview; 3) the collection of audio-visual materials, and 4) a walking tour. Findings suggest embodied experiences of neighborhood change inform participants sense of belonging. Race and gender resulted in differing interactions with people and place. This study adds to existing literature on belonging by offering an understanding into how white residents experience neighborhood change, which is rarely attended to in the literature. This study has the potential to inform future interdisciplinary research as well as municipal efforts to engage residents in community development and urban policy design. / 2025-05-15T00:00:00Z

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This study consisted of a site characterization followed by a biomonitoring study utilizing the zebra mussel, <i>Dreissena polymorpha</i>, at the Times Beach Confined Disposal Facility (CDF), located in Buffalo, New York. Concentrations of the selected contaminants (polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and the following metals: arsenic (As), chromium (Cr), barium (Ba), mercury (Hg), cadmium (Cd), lead (Pb), selenium (Se) and silver (Ag), were at or below detection limits in the water column. In the sediment toxicant concentrations were as high as 549 mg/kg for total PAHs, 9 mg/kg for PCB Aroclor 1248, and 54, 99, 6, 355, 637, and 16 mg/kg for the metals: As, Ba, Cd, Cr, Pb, and Hg respectively. To predict contaminant bioavailability, elutriate and whole sediment toxicity tests were performed utilizing the cladoceran, <i>Daphnia magna</i>. The whole sediment tests showed a significant impact. Control survival was 84%, while the sediment treatment survival range was 1-7%. Mean control reproduction was 86.8 neonates, whereas treatment group reproduction ranged from 1.4 to 9.0. Zebra mussels, placed both in the water column (Upper) and at the sediment level (Lower), survived the 34-day exposure. Contaminants which significantly accumulated in zebra mussel tissue during the exposure period (mg/kg) were total PAHs (6.58), fluoranthene (1.23), pyrene (1.08), chrysene (0.98), benzo(a)anthracene (0.60), PCB Aroclor 1248 (1.64), As (0.97), Cr (2.87), and Ba (7.00). The accumulation of benzo(a)anthracene was statistically higher in the Upper mussels; however, this did not occur for any other toxicant. Accumulation of these contaminants in zebra mussel tissue represent a potential hazard to organisms (ie. fish and birds) which feed on them. / Master of Science

The purpose of this research is to examine the impact of instructional leadership on the culture of teaching and learning in ten rural schools of the Eastern Cape categorised as performing and under performing schools. The research utilises the transformational leadership theory in its theoretical analytical framework as the model for effective leadership. The research argues that principals’ instructional leadership can significantly improve teacher engagement, teacher collaboration and learner performances in the ten rural schools. The study draws on the qualitative research methodology, instruments utilised are interviews of teachers, principals and top education officials within the Buffalo City Municipality. Past matric results of the rural schools under consideration were retrieved from the archives of the National Senior Certificate Results to measure the impact of instructional leadership on the culture of teaching and learning and learners’ performances. The study concludes that there is a relationship between instructional leadership and learners’ outcomes. / Educational Management and Leadership / M. Ed. (Educational Leadership and Management)

Thesis submitted in fulfilment of the requirements for the degree Master of Technology: Public Management in the Faculty of Business at the Cape Peninsula University of Technology 2013 / This study investigated the role of the informal business sector in local economic development with reference to Buffalo City Metropolitan Municipality (BCMM) as one of the possible solutions to deal with socio-economic challenges in the region. This study described the state of the informal business sector, the contributions thereof in local economic development, and the level of responsiveness from local authorities in Buffalo City Metropolitan Municipality. A survey questionnaire was administered to informal business actors in BCMM and semi-structured interviews were conducted with BCMM managers in the Business Development and Local Economic Development Directorates who were purposively selected because of the positions that they hold in the municipality. This study found that the informal business sector is underdeveloped in BCMM, and is imbued with development challenges, namely; support services such as infrastructure (designated municipal trading stalls) and access to financial support and the lack of strategy/policy dedicated to the prioritisation of the needs of the informal business sector. The informal business sector in BCMM is dominated by small and micro businesses. The municipality acknowledges the contributions of the informal business sector in local economic development from a job creation (selfemployment) and poverty alleviation perspective. However, the business environment of the informal business actors requires urgent development and support to stimulate and encourage the gains of this sector and the role that it plays on local economic development.

M.Sc. / Climate change, loss of habitat and over-exploitation of natural resources as well as the introduction of invasive alien species through human activities are resulting in an ever increasing risk of extinction of many plant and animal species. There are two major approaches to conserving threatened and endangered species. Firstly the large scale preservation of natural habitat and ecological processes, thereby protecting the species inhabiting the habitat. The second approach involves the ex-situ breeding of rare and endangered species. It is estimated that in the next 200 years approximately 800 mammalian species will require the assistance of breeding programs to ensure long term genetic viability. Biological Resource Banks (BRB) can potentially contribute to this challenge by providing a source of genes that can be used to counter the effects of external selection pressures, genetic drift and inbreeding depression in small or fragmented populations. These banks commonly contain biological materials such as cryopreserved sperm, embryos and cell cultures mainly as genetic and research resources. . Biological resource banks can potentially use these cryopreserved gametes together with assisted reproductive technologies (ART), such as artificial insemination (AI), in vitro fertilisation (IVF), embryo transfer (ET), intracytoplasmic sperm injection (ICSI) and nuclear transfer (NT) to maintain genetic heterogeneity in ex-situ and wild populations. Ascertaining the appropriate protocols for developing the ARTs necessary for non-domestic species is one of the major challenges faced by reproductive physiologists. Typically, there is very little available information about the processing of semen, the effects of diluents, concentration and type of cryoprotectants and freeze-thaw methods for sperm samples of non-domestic species. Procedures proven to be highly effective in humans and laboratory or domestic species, are frequently adopted and modified for use in related wildlife species. It is thus necessary to gain knowledge of the reproductive physiology of wildlife species in order to define effective protocols for the cryopreservation of biomaterials which assists in the conservation of South Africa‘s diverse wildlife species. Sperm quality assessment is a useful tool for assessing the reproductive health of free-ranging populations as well as for selecting individuals for future assisted reproduction programs.

The research was conducted to address the low service levels offered by Buffalo City Municipality. In the past Council has received numerous customer complaints to this effect, via correspondence and verbal communication to council delegates and officials. The executive head of the municipality has requested a turn around of this appalling situation. The aim of this research was to gain insight and meaning to the existing problem in an attempt to correct it. This was accomplished by identifying the problem, and then by introducing sub-problems to the main problem for practical and relevant solutions. The research was extended to cover the East London and King Williams Town Local Councils. This was undertaken through personal interviews with the Buffalo City Municipality staff, management, Salga officials and non-profit organisations that were involved in community research on service levels and delivery in local government for this region. Literature was reviewed on methods of improving customer relations in both the public and private sectors. Local and international best practices were analysed to benchmark against successful practices worldwide. Information relevant to Buffalo City’s scenario has been presented in this study, from the identification of effective customer relation practices, followed by the roles and skills required by management. In addition to the personal interviews conducted, a two-page questionnaire was compiled based on integrated information from literature reviewed on best practices, and staff and management input. The questionnaire formed part of the empirical study. Results of the study were critically analysed and revealed three main areas of urgent importance. These are: effective communication, the establishment of a customer care policy and procedures together with training and development. These are effectively achievable after the placement of staff. The study was concluded with a practical and applicable detailed programme of intervention.

Les années 1970 sont une période de changement pour le monde de l’art américain qui se tourne vers une vision pluraliste de l’art où triomphent l’installation, la performance, l’art vidéo, les écrits d’artistes et la photographie. Dans plusieurs grandes villes, des lieux d’exposition d’un nouveau genre apparaissent simultanément sous le nom d’espaces alternatifs. À New York et Buffalo, le 112 Greene Street, Artists Space (à NY) et Hallwalls (à Buffalo) sont trois espaces où règne un esprit d’expérimentation et de contestation, opposé aux normes esthétiques et aux logiques institutionnelles et marchandes qui dominent le monde de l’art. Comment se construit dès lors l’identité alternative de ces trois espaces et quelle place occupent-ils sur la scène artistique des années 1970 ?Lieux d’exposition marginaux situés dans des quartiers industriels en déclin, le 112 Greene Street, Artists Space et Hallwalls sont des structures avant-gardistes qui produisent des œuvres expérimentales (installations, performance, vidéo) et développent des systèmes de fonctionnement renforçant le pouvoir des artistes. Mais ce modèle alternatif se trouve immédiatement menacé par la précarité artistique qui caractérise ces structures. Le 112, Artists Space et Hallwalls s’institutionnalisent alors peu à peu pour survivre et acquièrent un nouveau statut au sein du monde de l’art : reconnus à la fin de la décennie comme des lieux indispensables à la valorisation de l’art contemporain, l’alternative qu’ils proposent est désormais moins fonctionnelle qu’esthétique. / The 1970s was a decade when important changes took place in the American art world, with a pluralistic approach to art, in which installations, performances, video art, artists books and photography represented new and innovative art forms. Amidst this diversity of practices, new exhibition venues were created in former industrial loft buildings, under the generic name of alternative spaces. In New York City and Buffalo, 112 Greene Street (NYC), Artists Space (NYC) and Hallwalls (Buffalo) were three spaces in which a spirit of protest and a desire for artistic experimentation prevailed, questioning the aesthetic norms of a mainstream art world dominated by institutional and commercial paradigms. Facing a powerful normative art world, how do these three spaces defined their alternative identities and their roles regarding the development of new art forms?From the moment of their births in the early 1970s, 112 Greene Street, Artists Space and Hallwalls represented marginal artistic venues. As avant-gardist exhibition spaces, they were geared towards experimental art and the development of new organizational systems in which artists had more power. However, their alternative status was rapidly threatened by the problem of their economic survival. During the decade, 112 Greene Street, Artists Space and Hallwalls thus progressively became more institutionalized, gaining in artistic maturity and developing a new recognition within the art world. By the late 1970s, as they grew more legitimate in their exhibition of experimental art, the alternative they offered, however, had become less functional and more aesthetic.