Ishmael Bobby Mphangwe Kosamu

Ishmael Bobby Mphangwe Kosamu
University of Malawi - The Polytechnic · Department of Physics and Biochemical Sciences

Doctor of Philosophy

About

33
Publications
25,240
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259
Citations
Introduction

Publications

Publications (33)
Article
Full-text available
Inland freshwater shallow lake ecosystem degradation is indistinctly intertwined with human-induced factors and climate variability. Changes in climate and human-induced factors significantly influence the state of lake ecosystems. This study provides evidence of the driver, pressure, state, impact, and response (DPSIR) indicators for freshwater la...
Article
Full-text available
This paper presents a case study from Lake Malombe, Malawi. It demonstrates Lake Malombe fish stock fluctuation and its implications on fishing community livelihoods. The main challenges that fishing communities are confronted with and their adaptation strategies developed over the years. This study's findings suggest that Lake Malombe riparian com...
Preprint
Full-text available
Lake Malombe fish stocks have been depleted by chronic overfishing. Various management approaches (co-management, command control, and ecosystem-based management to fisheries) have been used to manage the fishery. However, the lack of an accurate predictive model has hampered their success. Therefore, we developed and tested a time series model for...
Article
Full-text available
Water resources in the Chia lagoon in Malawi experience a possible threat to sustainability. Communities are seeking alternatives to improve water quality in the lagoon. This study quantified the communities' willingness-to-pay (WTP) and their influencing factors while using contingent valuation (CV) techniques. A wide range of data collection proc...
Preprint
This study employed a deductive research approach and a survey strategy to assess risk perception and its influencing factors among construction workers in Malawi. Three specific construction hazards and their associated risks were selected. The hazards were ‘working at height (WAH) ‘manual handling of loads (MHL)’ and ‘heavy workload or intense pr...
Chapter
In recognition of the importance of nature, its contributions to people and role in underpinning sustainable development, governments adopted a Strategic Plan on Biodiversity 2011-2020 through the Convention on Biological Diversity (CBD) containing 20 ‘Aichi Biodiversity Targets’ and integrated many of these into the Sustainable Development Goals (...
Preprint
Full-text available
1) Background: Water resources at Chia lagoon experience possible threat to its sustainability. Communities are seeking alternatives to improve water quality at the lagoon. The study evaluated the extent at which local communities are WTP to improve water quality at Chia lagoon and the influencing factors. (2) Methods: A study was conducted at Chia...
Article
Full-text available
Growth of cities in developing countries comes with increasing transportation and industrial activities which may contribute to accumulation of heavy metals in the environment. This paper provides a review of studies on heavy metals inMalawìs environment, their potential environmental impacts and possible removal methods with comparisons to other s...
Article
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A review of Japan’s fungicide usage from the 1960s to recent times was conducted using data from the National Institute of Environmental Studies, Japan. A total of 16 commonly used fungicides were assessed and these are: captan, chlorothalonil, fenarimol, ferbam, fosetyl-Al, iprodione, isoprothiolane, mancozeb, mepronil, metalaxyl, myclobutanil, pe...
Article
In Malawi, fishing community user groups known as beach village committees, traditional chiefs, government officers, and fishers are the key players in fisheries management. Fish catch trends at the Elephant Marsh Fishery in southern Malawi are declining. Based on interviews and participant observation, this article uses an actor-based framework (k...
Article
Full-text available
Economies that mainly depend on agriculture are to a large extent being negatively impacted by climate change. In this study, temperature and solar radiation data from Chitedze Weather Station, Lilongwe City, Malawi for a 29-year period (1985 to 2013) were assessed for the possibility of climate variation. In addition, the concentration of carbon d...
Article
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Institutions that manage small-scale fisheries across the globe can be locally based, state controlled or of a mixed, cross-scale nature. The latter arrangement, widely known as co-management, is generally believed to be the preferred approach for sustainability. This paper employs a crisp-set qualitative comparative analysis (csQCA) to examine 17...
Article
Full-text available
The Elephant Marsh, a wetland in Southern Malawi, is important for small-scale fisheries. It is managed by local institutions, which are not formally linked to any state institutions. This paper uses qualitative comparative analysis (QCA) to examine factors for sustainability at 24 fishing villages around the wetland using a hypothesis that "If str...
Article
Full-text available
Air quality in urban areas is a cause of concern because of increased industrial activities that contribute to large quantities of emissions. The study assess levels and variations of carbon monoxide (CO), nitrogen dioxide (NO2) and sulfur dioxide (SO2) in Blantyre, Malawi using a stationary environmental monitoring station (EMS). Results show that...
Article
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Recent scholars have highlighted the benefit of harvesting compost from eco-san toilets for application as plant nutrients. However, levels of nutrients in eco-san compost may vary depending on the type of toilet and also the type of top soil in a particular geographical region. This study compared levels of nitrogen, phosphorous, potassium, calciu...
Article
This study assessed variations of ambient volatile organic compounds and carbon monoxide (CO) levels in Blantyre City, Malawi. Volatile organic compounds and carbon monoxide measurement was done using the Multi-Gas Monitor between August and December, 2010. Rapid urbanization and lack of standard enforcement on air pollution as well as lack of data...
Article
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Since the adoption of the Environmental Management Act of 1996, Malawi has been using environmental impact assessment (EIA) as a tool for predicting and assessing the impact of development projects on the environment. This study assessed the extent of public participation in Malawi's EIA process. Desktop study of relevant documents such as EIA and...
Article
Full-text available
This study assessed variations of ambient volatile organic compounds and carbon monoxide (CO) levels in Blantyre City, Malawi. Volatile organic compounds and carbon monoxide measurement was done using the Multi-Gas Monitor between August and December, 2010. Rapid urbanization and lack of standard enforcement on air pollution as well as lack of data...
Article
Full-text available
ORCID Reference type: [formatted-apa]; ORCID Reference: [IBM Kosamu, AA Mkandawire, W Utembe, HWT Mapoma (2013). Public participation in Malawi's environmental impact assessment (EIA) process. African Journal of Environmental Science and Technology. Vol 7 (5): 307-311]
Article
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Climate change is presenting new and, to a large extent, unpredictable challenges to communities in Malawi and effective adaptation requires a well-coordinated organisational framework. This study looked at the success of organisations and the processes they employed for implementing policies that have implications for climate change adaptation in...
Article
Full-text available
About 95% of Malawi's electricity needs are provided by hydropower using the Shire River cascaded hydro schemes and Wovwe mini hydro plant in the Northern Region. The total installed capacity of 302MW (20% of which is lost during transmission) does not meet the current demand. Only 7.6% of the Malawian population has access to electricity. This fig...
Article
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In Malawi, nearly all (95% rural and 55% urban) households depend on firewood and charcoal for cooking. Consequently, domestic cooking is contributing to unsustainable exploitation of forests which result into various adverse socioeconomic and environmental effects. On the other hand, recent scholarship has shown that cooking using other energy sou...
Article
Full-text available
The Elephant Marsh, a wetland in Southern Malawi, is important for fishing, agriculture, hunting and the collection of natural resources for the livelihoods of local communities. However, there has been increasing pressure driven by a changing climate, population growth, rural poverty and agricultural conversion, all of which threaten the future of...
Article
Full-text available
The South African housing policy puts emphasis on broadening access to formal dwelling units for households living below a given monthly income as determined and approved by the government at any given time. The emphasis on a serviced dwelling unit within the housing policy assumes that the preference for a serviced dwelling unit is invariable and...
Article
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This study assessed temperature data from Chichiri weather station in Blantyre, Malawi for the possibility of warming and variation over a nine year (2000-2009) period. Blantyre was chosen because it is the industrial and commercial capital of Malawi whereas Chichiri is close to two industrial sites (Makata and Maselema). The data used was for mean...
Article
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Abattoir effluent is known to degrade the quality of receiving water bodies. This study assesses the impact of effluent from Shire Valley Abattoir on the physico-chemical parameters of Mchesa Stream in Blantyre. Water samples were collected from five sampling sites along Mchesa Stream located at progressive distances from the discharge point. Sampl...
Article
Full-text available
The current increase in the number of development projects in Malawi is leading to loss of natural resources and the general degradation of the environment. Both the Malawi Environmental Management Act of 1996 and the Guidelines for Environmental Impact Assessment of 1997, prescribe a list of infrastructural projects that must undergo environmental...
Article
Full-text available
This study assessed the role of picocyanobacterial photosynthesis in the induction of calcite precipitation. It aimed at establishing whether photosynthetic uptake of bicarbonate by Synechoccoccus cells leads to calcite nucleation. The precipitation of calcite was initiated by addition of previously washed cyanobacterial cells of Synechococcus stra...

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Projects

Project (1)
Project
The project goal was to complement government effort and the local communities in restoring the healthy biodiversity of Chambo and other important fish species and providing alternative livelihood to the communities around the lagoon through the development of pond-based Chambo production in the project area. The model of the project involved an integrated community-based participatory approach that involves sustainable economic use and management of fishery resources and also provides alternative livelihood to the communities