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2022

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The Influence Of Board Characteristics On Corporate Sustainability Disclosures In Sub-Saharan Africa, Emmanuel Christopher, Judika King'ori, Henry Chalu Dec 2022

The Influence Of Board Characteristics On Corporate Sustainability Disclosures In Sub-Saharan Africa, Emmanuel Christopher, Judika King'ori, Henry Chalu

Business Management Review

Despite acknowledging that corporate sustainability disclosures (CSD) are important in driving the sustainability agenda at a firm ' s level, there is limited research on the relationship between firm ' s highest governing organ and CSD, particularly in the context of developing countries. As such, this study contributes to empirical evidence by investigating the influence of board characteristics on CSD. The study used a panel dataset of 165 firms in 12 Sub-Saharan African countries for the 2015 €“ 2019 period, hence a total of 825 firm year observations. The study results show that board size has an inverted u-shaped relationship …

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Lead Acid Battery Recycling In The Current Tanzania Industrialization Drive: Challenges And Opportunities, Divina D. Kaombe Dec 2022

Lead Acid Battery Recycling In The Current Tanzania Industrialization Drive: Challenges And Opportunities, Divina D. Kaombe

Tanzania Journal of Engineering and Technology (TJET)

ABSTRACT Advancements in automotive technologies, Information and Communications Technology and renewable energy technologies have increased the use of lead acid batteries as a source of portable and rechargeable energy. This has considerably increased the number of spent batteries with adverse effects on the environment and human health; which calls for recycling of spent batteries. This work was conducted to investigate challenges facing the formal business of recycling spent batteries and potential manufacturers of new lead-acid batteries in Tanzania. The work involved collection of information from key stakeholders such as collectors, dealers, Tanzania Revenue Authority and recyclers. It was found out …

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The Internal Audit Functions: Competence, Effectiveness And External Auditors ' Reliance In Tanzania, John Sosthenes, Ernest G. Kitindi, Judika L. King'ori Dec 2022

The Internal Audit Functions: Competence, Effectiveness And External Auditors ' Reliance In Tanzania, John Sosthenes, Ernest G. Kitindi, Judika L. King'ori

Business Management Review

This study examines the influence of internal audit function competence on the extent of external auditors ' reliance on internal audit function work and whether the internal audit function effectiveness mediates such a relationship. Data was collected from 100 external auditors of the Dar es Salaam Stock Exchange-listed companies and analysed using a Partial Least Square Structural Equation Modelling. The result indicates that internal audit function competence does not affect the external auditors ' reliance on internal audit function work. Nevertheless, the result shows that the competence of internal audit function has a positive effect on the external auditors ' …

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Characteristics Of Extreme Precipitation And Their Effect On Bean Yield In Rwanda, Paul Ts Limbu Sr Dec 2022

Characteristics Of Extreme Precipitation And Their Effect On Bean Yield In Rwanda, Paul Ts Limbu Sr

Tanzania Journal of Engineering and Technology (TJET)

This study examines the characteristics of extreme precipitation and its effect on bean yield in Rwanda from 1981 to 2017. Over the study area, two rainy seasons, March to May (MAM) and September to December (SOND), account for approximately 80% of total rainfall. The spatial distribution of rainfall over Rwanda revealed that the first three EOF modes of MAM rainfall vary by 72.72 percent over the study period, while the first three EOF modes of SOND rainfall vary by 57.48 percent. The spatial analysis of extreme precipitation reveals that during wet years, the majority of the country's western regions receive …

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A Chemical Study Of Archaeometallurgical Ceramics From Southwestern Tanzania, Edwinus Lyaya Dec 2022

A Chemical Study Of Archaeometallurgical Ceramics From Southwestern Tanzania, Edwinus Lyaya

Tanzania Journal of Engineering and Technology (TJET)

Archaeometallurgical ceramics, including furnaces, tuyères, and potteries, were required for successful pre-industrial iron smelting and refining. However, there are limited chemical studies on archaeometallurgical ceramics in Tanzania. This paper examined the nature of clay source in terms of refractoriness, determined whether there were multiple clay sources, and verified the refractoriness of the archaeometallurgical ceramics. An x-ray fluorescence (XRF) analytical technique and experimental re-firing of the archaeometallurgical ceramics were employed. The chemical data clustered in the mullite region on the Al2O3-SiO2-FeO ternary system indicate that iron smelters and refiners chose refractory clay sources for making archaeometallurgical ceramics. Small range and standard …

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Occlusion Handler Density Networks For 3d Multimodal Joint Location Of Hand Pose Hypothesis, Stanley Tito Dec 2022

Occlusion Handler Density Networks For 3d Multimodal Joint Location Of Hand Pose Hypothesis, Stanley Tito

Tanzania Journal of Engineering and Technology (TJET)

(HPE) process is an ill-posed challenge. This is due to severe self occluded joints of the hand. The existing approaches for predicting pose parameters of the hand, utilize a single-value mapping of an input image to generate final pose output. This way makes it difficult to handle occlusion especially when it comes from the multimodal pose hypothesis. This paper introduces an effective method of handling multimodal joint occlusion using the negative log-likelihood of a multimodal mixture-of-Gaussians through a hybrid hierarchical mixture density network (HHMDN). The proposed approach generates multiple feasible hypotheses of 3D poses with visibility, unimodal and multimodal distribution …

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Properties Of (Cd, Zn)S Films Deposited By Dc Co-Sputtering, Lwitiko P. Mwakyusa Dec 2022

Properties Of (Cd, Zn)S Films Deposited By Dc Co-Sputtering, Lwitiko P. Mwakyusa

Tanzania Journal of Engineering and Technology (TJET)

CdS thin film is commonly used as a buffer layer in most thin film solar cells. However, the buffer layer with less absorption in the visible region of the solar spectrum as well as that which provides perfect lattice matching with the absorbers is required. The incorporation of Zn in the CdS films can affect the structural and optical properties of the buffer layer. In this work, films of CdS and (Cd,Zn)S films were deposited by DC sputtering utilizing CdS and Zn targets. The concentration of Zn in the CdS was varied by changing the sputtering power of the Zn …

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Filtering Effect On Rssi-Based Indoor Localization Methods, Kwame S. Ibwe Dec 2022

Filtering Effect On Rssi-Based Indoor Localization Methods, Kwame S. Ibwe

Tanzania Journal of Engineering and Technology (TJET)

Indoor positioning systems are used to locate and track objects in an indoor environment. Distance estimation is done using received signal strength indicator (RSSI) of radio frequency signals. However, RSSI is prone to noise and interference which can greatly affect the accuracy performance of the system. In this paper Internet of Things (IoT) technologies like low energy Bluetooth (BLE), WiFi, LoRaWAN and ZigBee are used to obtain indoor positioning. Adopting the existing trilateration and positioning algorithms, the Kalman, Fast Fourier Transform (FFT) and Particle filtering methods are employed to denoise the received RSSI signals to improve positioning accuracy. Experimental results …

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A Genetic Algorithm Approach To Optimal Sizing And Placement Of Distributed Generation On Nigerian Radial Feeders, Adelowo Balogun Dec 2022

A Genetic Algorithm Approach To Optimal Sizing And Placement Of Distributed Generation On Nigerian Radial Feeders, Adelowo Balogun

Tanzania Journal of Engineering and Technology (TJET)

Mitigating power loss and voltage profile problems on radial distribution networks has been a major challenge to distribution system operators. While deployment of distributed generation, as compensators, has made a suitable solution option, optimum placement and sizing of the compensators has been a concern and it has thus been receiving great attention. Meta-heuristic algorithms have been found efficacious in this respect, yet the use of the algorithms in addressing problems of radial feeders is still comparatively low in Nigeria where analytical and numerical programming methods are common. Hence; the use of genetic algorithm to site and size distributed generator for …

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Review Of The Imaging Performance And The Current Status Of The Cascade Gamma-Rays Coincidence Imagers, Leonid L. Nkuba Dr. Dec 2022

Review Of The Imaging Performance And The Current Status Of The Cascade Gamma-Rays Coincidence Imagers, Leonid L. Nkuba Dr.

Tanzania Journal of Engineering and Technology (TJET)

Various studies that have investigated the detection of gamma coincidence events have revealed that design factors and image reconstruction approaches dictate the spatial resolution, coincidence efficiency, and levels of statistical noise of the detection system. In the case of imaging, cascade gamma-ray coincidence (CGC) imagers coupled with collimated detectors offer promising values for both spatial resolution and coincidence efficiency. However, to date, no CGC imager with single or multiple collimated detectors has reported a performance level beyond 6.7 mm spatial resolution (FWHM) and 6.0 × 10-6 coincidence efficiency. Given the recent developments and the current interests in high resolution and …

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Assessing Morphological Changes Of The Msimbazi River Using Satellite Images, Fides J. Izdori Dec 2022

Assessing Morphological Changes Of The Msimbazi River Using Satellite Images, Fides J. Izdori

Tanzania Journal of Engineering and Technology (TJET)

This study assessed historical morphology changes of the Msimbazi River in Dar es Salaam City, Tanzania, following heavy rainfall events using historical Google earth images. The erosion and sedimentation processes that cause morphological changes of a river are also associated with flooding within the river catchments. In this study, the bank-line movement, erosion and sedimentation areas and changes in river section width were analyzed under three-time periods: 2005- 2012, 2012- 2018, and 2018- 2020. Data shows that, the timing for floods coincides with the historical records for heavy rains. It was found that, area in the upper reaches of the …

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Concrete Technology In A Rapidly Growing Urban Environment – The Case Of Dar Es Salaam City, John K. Makunza Jkm Dec 2022

Concrete Technology In A Rapidly Growing Urban Environment – The Case Of Dar Es Salaam City, John K. Makunza Jkm

Tanzania Journal of Engineering and Technology (TJET)

Concrete is a building material that is used in great quantities second only to our use of water. The ingredient materials of concrete include cement, fine and coarse aggregates plus a reasonable amount of water, and sometimes additives. The construction of various structures like, residential buildings, commercial buildings, hospitals, schools, bridges, etc., needs good quality concrete. Good modern technologies are needed by the construction industry in order to effectively construct buildings which are durable. A study has been done with the main objective of assessing the concrete technologies existing in rapid growing cities in Sub-Sahara Africa like Dar es Salaam, …

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Development Of An Operational Satellite-Based Flood Monitoring Model For Tanzania, Andrew Kimati Dec 2022

Development Of An Operational Satellite-Based Flood Monitoring Model For Tanzania, Andrew Kimati

Tanzania Journal of Engineering and Technology (TJET)

Timely information during water related disasters is of utmost importance for flood preparedness and risk reduction. However, the conventional ground-based photographic monitoring of flooded areas is an expensive and time-consuming exercise. Satellite remote sensing is a quick and affordable approach that can be used for concurrent floods detection at different scales. This is important as it facilitates timely information for emergency response to disaster management departments, even in scarcely instrumented catchments. This study presents a novel approach for flood tracking using satellite image remote sensing science to map flood affected areas immediately after occurrence of rainfall events. An open-source water …

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Analysis Of Ore Hand-Crushed Size Distribution For Grinding Process In The Artisanal And Small-Scale Gold Mines Production: A Case Study Of Nholi Mine, Bahi District, Malugu Tembo Dec 2022

Analysis Of Ore Hand-Crushed Size Distribution For Grinding Process In The Artisanal And Small-Scale Gold Mines Production: A Case Study Of Nholi Mine, Bahi District, Malugu Tembo

Tanzania Journal of Engineering and Technology (TJET)

(ASGM) employed numbers of people compared to large-scale mines. The ASGM has been played a crucial role in poverty alleviation and rural development, particularly in developing countries. The mined ore is crushed and ground for beneficiation of gold. The grinding process involved the size reduction of blasted materials to acquire minerals of interest. This paper presents the size distribution of hand-crushed for blasted materials using sieve analysis and digital image processing. The sieve test results for hand-crushed blasted material of three muck-piles were ranged between 17 mm and 36 mm that is equivalent to 20% and 80% passings respectively, with …

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Deployment Of Inductive Loop Vehicle Traffic Counters Along Trunk Roads In Tanzania, Daudi Simbeye Dec 2022

Deployment Of Inductive Loop Vehicle Traffic Counters Along Trunk Roads In Tanzania, Daudi Simbeye

Tanzania Journal of Engineering and Technology (TJET)

As Tanzania's population grows, there is a greater demand for efficient, effective, and strong road design, as well as a smooth transportation system with a balanced traffic management network architecture. To plan for maintenance and expansion of such a vast network, a credible data inventory and network condition must be established. The deployment of vehicle inductor loop counters along Tanzanian trunk roads is presented in this paper. At test sites, inductor loop sensors and control cards were used to capture vehicle traffic data, which was then wirelessly sent using GSM technology for vehicle classification verification and storage for future road …

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Design And Implementation Of Cardiopulmonary Resuscitation Simulation Model, Mbazingwa Mkiramweni Dec 2022

Design And Implementation Of Cardiopulmonary Resuscitation Simulation Model, Mbazingwa Mkiramweni

Tanzania Journal of Engineering and Technology (TJET)

Cardiopulmonary resuscitation (CPR) is a life-saving procedure that can multiply a person's chances of survival after a cardiac arrest. The effectiveness of CPR procedures is heavily influenced by the individual skills of the rescuer providing assistance. Chest compressions delivered at an appropriate depth and rate, allowing full chest recoil and with minimal interruptions, are critical for improving cardiac arrest survival. The lack of quality CPR training models in developing countries has a significant impact on the quality of CPR training and skills acquired. Therefore, in this paper, we aim at improving CPR training by designing a high-fidelity CPR training manikin. …

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Synthesis, Characterisation And Catalytic Evaluation Of Castor Oil-Templated Mesoporous Sulfated Solid Acid Catalysts For Esterification Reaction, Steven Nyandoro Pr Dec 2022

Synthesis, Characterisation And Catalytic Evaluation Of Castor Oil-Templated Mesoporous Sulfated Solid Acid Catalysts For Esterification Reaction, Steven Nyandoro Pr

Tanzania Journal of Engineering and Technology (TJET)

In bio-refinery and other catalytic reactions, heterogeneous catalysts confer advantage over homogenous catalysts due to minimized recovery and separation costs. However, templating surfactant and solid support for the synthesis of heterogeneous catalysts ought to consider their cheap sources and environmentally friendliness for their sustainable use. Thus, with the vision to make the process significantly benign, in the present work, solid acids were synthesised from renewable sources (castor oil as surfactant and rice husk as the source of silica). The synthesised castor oil-templated mesoporous sulfonic acid modified catalysts (SO3H-MTS and SO3H-MT-RHS) were characterised and evaluated for catalytic esterification of acetic acid …

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Optimization Of Pulsed Laser Deposition Parameters For Single Crystalline (011) Oriented Tetragonal Pzt Thin Films, Mahamudu H. Mtebwa Dec 2022

Optimization Of Pulsed Laser Deposition Parameters For Single Crystalline (011) Oriented Tetragonal Pzt Thin Films, Mahamudu H. Mtebwa

Tanzania Journal of Engineering and Technology (TJET)

Recent advances in nanotechnology applications require the processing of high-quality thin films. A systematic study of the optimization of Pulsed deposition parameters for (110) oriented tetragonal PZT thin films is reported in this work. Prior to film deposition, a highly tetragonal Pb(Zr0.5, Ti0.95) or PZT 05/95 was selected to be deposited on (110) oriented Strontium titanate, SrTiO3 substrate, STO(110) to insure small compressive misfit strain. Unlike SRO, the LSOM bottom electrode was then successfully grown at 620 °C, 1.0 J/cm2 and a target-substrate distance of 3.9 cm. Finally, deposition parameters of PZT were progressively optimized through monitoring film morphological changes. …

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Performance Evaluation Of Udsm Network To Deliver Multimedia Elearning Contents: Case Of Coict, Mercy Mbise Dec 2022

Performance Evaluation Of Udsm Network To Deliver Multimedia Elearning Contents: Case Of Coict, Mercy Mbise

Tanzania Journal of Engineering and Technology (TJET)

The use of technology in education in Sub-Saharan Africa has been reported to be hindered by many factors including inadequate Information and Communication Technology (ICT) infrastructure, low internet speed, and lack of skills to use educational technologies. This paper aim at evaluating how the available ICT infrastructure at the College of Information and Communication Technologies (CoICT) can support, with acceptable Quality of Service (QoS), the delivery of multimedia applications for eLearning services. The evaluation was performed over a network testbed implemented in a computer laboratory for wired and wireless connections. The testbed consisted of five personal computers (PCs) connected via …

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Energy Assessment Of E-Motorcycles As A Clean Transport Mode For Passenger Mobility: A Case Of Ilala District, Dar Es Salaam, John Shirima Dec 2022

Energy Assessment Of E-Motorcycles As A Clean Transport Mode For Passenger Mobility: A Case Of Ilala District, Dar Es Salaam, John Shirima

Tanzania Journal of Engineering and Technology (TJET)

Electric motorcycles or e-motorcycles is a clean mode of road transport that present a prominent solution toward decarbonizing cities. Despite of e-motorcycles being cleaner than gasoline ones, at the moment, there is missing information whether it is feasible to replace gasoline motorcycles with e-motorcycles used for business transport purposes. This paper, therefore, presents the results comparing energy usage when using e-motorcycles and when using the gasoline motorcycles. The energy demand for driving passengers using an e-motorcycle in the precarious routes originated from Gongo la Mboto bus stop to Segerea bus stop, Buguruni Malapa, Gerezani bus stop, Kivukoni bus stop, and …

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Effects Of Interest Rate Ceiling On Sustainability Of Microfinance Institutions: Lessons From Tanzania, Goodluck Charles Dec 2022

Effects Of Interest Rate Ceiling On Sustainability Of Microfinance Institutions: Lessons From Tanzania, Goodluck Charles

Business Management Review

This study explores the effects of an interest rate ceiling on the sustainability of Microfinance Institutions (MFIs). Based on qualitative research which entailed collection of online data from 53 respondents and in-depth face-to-face interviews with 10 MFI practitioners in Tanzania, it is evident that an interest rate ceiling interferes with competitive market forces. Given that MFIs vary in size, operational capacity, customer segment and business model, applying a single blanket interest rate leads to capital and credit diversion, hidden non-interest charges, the emergence of informal lenders and a black market, the withholding of credit from risky markets and the closure …

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Audit Committee And Internal Control Effectiveness In Public Sector Entities, Cosmas R. Masanja Dec 2022

Audit Committee And Internal Control Effectiveness In Public Sector Entities, Cosmas R. Masanja

Business Management Review

This paper reports the findings of a study that examined the audit committee and internal control effectiveness nexus. The study worked on the assertion that the audit committee of the board enhances internal control effectiveness, which is widely documented and supported, more so in the private sector. As a result, many public sector entities ' governing boards are increasingly establishing such audit committees. Yet, it is unclear to what extent such increase in audit committees contribute to public sector entities ' internal control effectiveness, especially in developing economies. This study, therefore, examined the explanatory power of the audit committee ' …

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Comparative Analysis Of Liquidity And Capital Of Commercial Banks In Tanzania, Elizabeth Joseph Dec 2022

Comparative Analysis Of Liquidity And Capital Of Commercial Banks In Tanzania, Elizabeth Joseph

Business Management Review

This study compares the liquidity and capital of commercial banks in Tanzania. Specifically, the study examines the liquidity and capital adjustment of small, medium and large banks. The study used quarterly data of 28 commercial banks from 2010 to 2019 and applied descriptive and correlation analysis. Results revealed a negative correlation between adjustment in capital and liquid assets to customer deposits ratio. Furthermore, a significant correlation between capital adjustment and liquidity in small and large banks was also observed. The liquidity and capital adjustment between the current and previous periods do not significantly differ among small, medium, and large banks. …

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An Assessment Of Electronic Waste Knowledge, Attitude, Intentions, And Risk Perception Of Sustainable Electronic Waste Management From A Developing Country Perspective, Sonny Nyeko Juma, Sumaya M. Kagoya Dec 2022

An Assessment Of Electronic Waste Knowledge, Attitude, Intentions, And Risk Perception Of Sustainable Electronic Waste Management From A Developing Country Perspective, Sonny Nyeko Juma, Sumaya M. Kagoya

Business Management Review

This study aimed at assessing E-waste knowledge, E-waste intentions, E-waste attitude, and E-waste risk perceptions regarding sustainable E-waste management practices among key government decisionmakers using the Theory of Planned Behavior (TPB). Questionnaires were analyzed using Partial Least Squares-Structural Equation Modelling (PLS-SEM) multivariate statistical technique. Findings indicate that the sustainable E-waste management practice model, based on E-waste knowledge, E-waste intentions, E-waste attitude, and E-waste risk perceptions, explains 56.2% of the sustainable E-waste management practice variance. Additionally, E-waste attitude, knowledge, and intention significantly influence sustainable E-waste management practices. E-waste attitude demonstrates the most robust prediction of sustainable E-waste management practices from a …

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The Influence Of Customer-Vendor Communication And Power Relations On Successful Implementation Of Enterprise Resource Planning (Erp): The Mediation Role Of Erp Fit, Tumsifu Elly, Victor Wilson Dec 2022

The Influence Of Customer-Vendor Communication And Power Relations On Successful Implementation Of Enterprise Resource Planning (Erp): The Mediation Role Of Erp Fit, Tumsifu Elly, Victor Wilson

Business Management Review

The study investigates the influence of power relations and effective communication between ERP customers and vendors, on ERP fit and implementation success. Explanatory research involving a survey of 297 manufacturing firms in Tanzania was conducted. The data collected were analysed using partial least square structural equation modelling. The results indicate that manufacturers with higher levels of customer-vendor power relationships have a positive impact on ERP fit; at the same time, higher levels of ERP fit have a positive impact on implementation success. The results further show that effective communication between ERP customers and vendors has a positive relationship with ERP …

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Determination Of Effectiveness Of Combined Biological And Physicochemical Treatment Of Vinasse, Mahir Mohammed Said Dec 2022

Determination Of Effectiveness Of Combined Biological And Physicochemical Treatment Of Vinasse, Mahir Mohammed Said

Tanzania Journal of Engineering and Technology (TJET)

Combined biological and Physicochemical treatment method was used to treat vinasse using microorganisms (Aspergillus niger (fungi) and Bacillus subtilis (bacteria)), coagulants (aluminium sulphate (Al2(SO4)3) and iron III chlorides (FeCl3)) and followed by filtration. Three factors; coagulant type, type of microorganism and coagulant concentration was analysed using full factorial design (2n) with replication, on their percentage removal of Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS) and turbidity. Pareto chart and regression analysis with a 95% confidence interval (5% significant level) were used to analyse the results using MINITAB 22 (current version). Initially, the vinasse had (COD), …

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Performance Investigations Of The Charging And Discharging Processes In A 3-Tank Thermal Energy Storage System, Swalehe Tusiime, Karidewa Nyeinga, Denis Okello, Ole J. Nydal Dec 2022

Performance Investigations Of The Charging And Discharging Processes In A 3-Tank Thermal Energy Storage System, Swalehe Tusiime, Karidewa Nyeinga, Denis Okello, Ole J. Nydal

Tanzania Journal of Science

The paper presents a 3 tank thermal energy storage system. The system consists of cold oil reservoir, heat storage tank, and a residual drainage tank. Cold oil flows by gravity into a heating chamber and after being heated to the required temperature, a mechanical thermostat opens allowing the hot oil to flow into a heat storage tank. The storage tank was discharged through the cooking unit by boiling 0.5 litres of water. The used oil flowed by gravity to the drainage tank. The discharge flow rates of 0.5, 2.1, 2.8 and 6.5 g/s were considered. A charging efficiency of 51.3% …

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Phytochemical And Antibacterial Evaluations Of Chloroform Extract Of Mondia Whitei (Hook F) Skeels, Abdullahi Shehu, Ojochide Inikpi Egwemi, Olufunmilayo Adeola Ajayi, Abdulmumeen Amao Hamid Dec 2022

Phytochemical And Antibacterial Evaluations Of Chloroform Extract Of Mondia Whitei (Hook F) Skeels, Abdullahi Shehu, Ojochide Inikpi Egwemi, Olufunmilayo Adeola Ajayi, Abdulmumeen Amao Hamid

Tanzania Journal of Science

Mondia whitei, also known as Mondia, is an aromatic plant of Apocynaceae family. It is used as aphrodisiac, antidepressant, fertility medication and to improve appetite. The present study aimed to evaluate the phytochemical and antibacterial properties of the plant. The chloroform extract of M. whitei was screened for its antibacterial effects using agar diffusion method against five bacterial strains (Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae and Salmonella typhi). The extract was active against S. typhi, K. pneumoniae and S. aureus at 400, 400 and 200 mg/mL, respectively. The antibacterial activity of the extract was observed in a dose-dependent …

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Impacts Of Climate Change On Small Pelagic Fish Catches In The Coastal Artisanal Fishers Communities Of Tanzania, Lyidia Kapapa, Paul Onyango Onyango, Nibedita Mukherjee, Prosper Mfilinge Dec 2022

Impacts Of Climate Change On Small Pelagic Fish Catches In The Coastal Artisanal Fishers Communities Of Tanzania, Lyidia Kapapa, Paul Onyango Onyango, Nibedita Mukherjee, Prosper Mfilinge

Tanzania Journal of Science

Climate-related effects occur across all regions in Tanzania, affecting primary sectors such as agriculture and fishing. This study investigated the impacts of climatic change on small pelagic catches in fishers in Kilindoni, Kipumbwi and Kilwa Kivinje villages along the Tanzanian coast. We studied how changes in rainfall, sea surface temperature, wind speed and chlorophyll a affect small pelagic fisheries using primary and secondary data. Qualitative and quantitative methods were applied. Primary data collection involved questionnaires, focus group discussions and key informant interviews. Secondary data was obtained from Tanzania Meteorological Agency and remote sensing from Modi's sensor. Results showed an increase …

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Diet Of The Golden Jackal (Canis Aureus) And Silver-Backed Jackal (Canis Mesomelas) In The Southern Part Of The Serengeti Ecosystem, Tanzania: A Comparative Study, Steven E. Temu, Cuthbert L. Nahonyo, Marion L. East, Patricia D. Moehlman Dec 2022

Diet Of The Golden Jackal (Canis Aureus) And Silver-Backed Jackal (Canis Mesomelas) In The Southern Part Of The Serengeti Ecosystem, Tanzania: A Comparative Study, Steven E. Temu, Cuthbert L. Nahonyo, Marion L. East, Patricia D. Moehlman

Tanzania Journal of Science

Habitat and food resource partitioning are predicted to facilitate the coexistence of similar-sized carnivores. The golden jackal (Canis aureus) and silver-backed jackal (Canis mesomelas) are similar-sized canids that respectively inhabit grassland and woodland in the Serengeti ecosystem, Tanzania. As information on the diet and food-intake of these two species in this ecosystem is limited, we aimed to compare the diet and food-intake of these canids in the wet and dry seasons, using data from focal samples of foraging behaviour and scat analysis. We predicted dietary differences between these species, seasonal differences within species and peak food intake when breeding. Result …

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