samuel abalansa

Mr. samuel abalansa

Center for Marine and Environmental Research (CIMA), University of Algarve, Portugal
orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 May 2021 in Sustainability
Verified
Journal Article
Open access
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SAsamuel abalansa
samuel abalansa
Badr El MahradBadr El Mahrad
Badr El Mahrad
JIJohn Icely
John Icely
Alice NewtonAlice Newton
Alice Newton
Electronic waste (e-waste) is a rapidly developing environmental problem particularly for the most developed countries. There are technological solutions for processing it, but these are costly, and the cheaper option for most developed countries has been to export most of the waste to less developed countries. There are various laws and policies for regulating the processing of e-waste at different governance scales such as the international Basel Convention, the regional Bamoko Convention, and various national laws. However, many of the regulations are not fully implemented and there is substantial financial pressure to maintain the jobs created for processing e-waste. Mexico, Brazil, Ghana Nigeria, India, and China have been selected for a more detailed study of the transboundary movements of e-waste. This includes a systematic review of existing literature, the application of the Driver, Pressure, State, Impact, Response (DPSIR) framework for analysing complex problems associated with social ecological systems, and the application of the Life Cycle Assessment (LCA) for evaluating the environmental impact of electronic devices from their manufacture through to their final disposal. Japan, Italy, Switzerland, and Norway have been selected for the LCA to show how e-waste is diverted to developing countries, as there is not sufficient data available for the assessment from the selected developing countries. GOOD, BAD and UGLY outcomes have been identified from this study: the GOOD is the creation of jobs and the use of e-waste as a source of raw materials; the BAD is the exacerbation of the already poor environmental conditions in developing countries; the UGLY is the negative impact on the health of workers processing e-waste due to a wide range of toxic components in this waste. There are a number of management options that are available to reduce the impact of the BAD and the UGLY, such as adopting the concept of a circular economy, urban mining, reducing loopholes and improving existing policies and regulations, as well as reducing the disparity in income between the top and bottom of the management hierarchy for e-waste disposal. The overarching message is a request for developed countries to help developing countries in the fight against e-waste, rather than exporting their environmental problems to these poorer regions.

18 July 2020 in Remote Sensing
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Journal Article
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Badr El MahradBadr El Mahrad
Badr El Mahrad
Alice NewtonAlice Newton
Alice Newton
JIJohn Icey
John Icey
IKIlias Kacimi
Ilias Kacimi
SAsamuel abalansa
samuel abalansa
SMSnoussi Maria
Snoussi Maria
Coastal and marine management require the evaluation of multiple environmental threats and issues. However, there are gaps in the necessary data and poor access or dissemination of existing data in many countries around the world. This research identifies how remote sensing can contribute to filling these gaps so that environmental agencies, such as the United Nations Environmental Programme, European Environmental Agency, and International Union for Conservation of Nature, can better implement environmental directives in a cost-effective manner. Remote sensing (RS) techniques generally allow for uniform data collection, with common acquisition and reporting methods, across large areas. Furthermore, these datasets are sometimes open-source, mainly when governments finance satellite missions. Some of these data can be used in holistic, coastal and marine environmental management frameworks, such as the DAPSI(W)R(M) framework (Drivers–Activities–Pressures–State changes–Impacts (on Welfare)–Responses (as Measures), an updated version of Drivers–Pressures–State–Impact–Responses. The framework is a useful and holistic problem-structuring framework that can be used to assess the causes, consequences, and responses to change in the marine environment. Six broad classifications of remote data collection technologies are reviewed for their potential contribution to integrated marine management, including Satellite-based Remote Sensing, Aerial Remote Sensing, Unmanned Aerial Vehicles, Unmanned Surface Vehicles, Unmanned Underwater Vehicles, and Static Sensors. A significant outcome of this study is practical inputs into each component of the DAPSI(W)R(M) framework. The RS applications are not expected to be all-inclusive; rather, they provide insight into the current use of the framework as a foundation for developing further holistic resource technologies for management strategies in the future. A significant outcome of this research will deliver practical insights for integrated coastal and marine management and demonstrate the usefulness of RS to support the implementation of environmental goals, descriptors, targets, and policies, such as the Water Framework Directive, Marine Strategy Framework Directive, Ocean Health Index, and United Nations Sustainable Development Goals. Additionally, the opportunities and challenges of these technologies are discussed.

19 October 2020 in Sustainability
Verified
Journal Article
Open access
SAsamuel abalansa
samuel abalansa
Badr El MahradBadr El Mahrad
Badr El Mahrad
Godwin Kofi VondoliaGodwin Kofi Vondolia
Godwin Kofi Vondolia
JIJohn Icely
John Icely
Alice NewtonAlice Newton
Alice Newton
The issue of marine plastic litter pollution is multifaceted, cross-sectoral, and ongoing in the absence of appropriate management measures. This study analysed the issue of marine plastic litter pollution in the context of the Descriptor 10 of the Marine Strategy Framework Directive and Good Environmental Status of the oceans and seas. The Driver-Pressure-State-Impact-Response (DPSIR) framework was used to assess the causes, effects, and management measures to changes in the marine environment resulting from marine plastics pollution. We noted that less than 10 peer-reviewed publications have applied the Driver-Pressure-State-Impact-Response (DPSIR) model to the issue of marine plastics pollution. Some basic needs such as food security, movement of goods and services, and shelter are also some of the major drivers of marine plastic pollution. The use of plastics is linked to multiple economic sectors (fisheries, agriculture, transport, packaging, construction) and other human activities. A significant amount of the resulting pressures came from the economic sectors for packaging and construction. State changes occurred at the environmental (contamination and bioaccumulation), ecosystem (ingestion of plastics, ghost fishing) and ecosystem service levels (supply of sea food, salt and cultural benefits), with possible loss of jobs and income being some of the observed impacts on human welfare. Responses as management measures, which are tailored to meet each component of the DPSIR framework, were identified. These included policies, regulations, technological advancement and behavioural change. The research acknowledges the issue of marine plastics pollution as a global environmental problem and recommends a trans-disciplinary approach, involving all types of stakeholders. Future research and analysis applying the DPSIR framework will be useful to provide the information necessary for the effective, adaptive management of litter pollution by marine plastics.

23 April 2020 in Frontiers in Environmental Science
Verified
Journal Article
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Badr El MahradBadr El Mahrad
Badr El Mahrad
SAsamuel abalansa
samuel abalansa
Alice NewtonAlice Newton
Alice Newton
JIJohn D. Icely
John D. Icely
MSMaria Snoussi
Maria Snoussi
IKIlias Kacimi
Ilias Kacimi
This study provides an overview of 11 lagoons in North Africa, from the Atlantic to the Eastern Mediterranean. Lagoons are complex, transitional, coastal zones providing valuable ecosystem services that contribute to the welfare of the human population. The main economic sectors in the lagoons included fishing, shellfish harvesting, and salt and sand extraction, as well as maritime transport. Economic sectors in the areas around the lagoons and in the watershed included agriculture, tourism, recreation, industrial, and urban development. Changes were also identified in land use from reclamation, changes in hydrology, changes in sedimentology from damming, inlet modifications, and coastal engineering. The human activities in and around the lagoons exert multiple pressures on these ecosystems and result in changes in the environment, affecting salinity, dissolved oxygen, and erosion; changes in the ecology, such as loss of biodiversity; and changes in the delivery of valuable ecosystem services. Loss of ecosystem services such as coastal protection and seafood affect human populations that live around the lagoons and depend on them for their livelihood. Adaptive management frameworks for social–ecological systems provide options that support decision makers with science-based knowledge to deliver sustainable development for ecosystems. The framework used to support the decision makers for environmental management of these 11 lagoons is Drivers–Activities–Pressures–State Change–Impact (on Welfare)–Responses (as Measures). - A social–environmental analysis of 11 North African coastal lagoons. - The behavior of users is similar across North African lagoons. - Responses (as measures) to problems are identified. - Adaptive management of coastal lagoons can deliver more ecosystem services.

1 January 2026 in Journal of Agriculture, Food Systems, and Community Development
Verified
Journal Article
Open access
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RNRichard Nyiawung
Richard Nyiawung
JDJoachim Dotto
Joachim Dotto
ABAnastazia Bikuba
Anastazia Bikuba
VEVictoria Erasmus
Victoria Erasmus
EREvodius Rutta
Evodius Rutta
AAAbdul-Rahim Abdulai
Abdul-Rahim Abdulai
Introduction Sub-Saharan Africa’s (SSA) food systems have been transformed by science-driven gains in pro­ductivity and market access, yet a health crisis is intensifying within its vast informal food environ­ments. Agricultural research and technology invest­ments have strengthened smallholder systems (Shilomboleni & De Plaen, 2019) and expanded food availability (Clark & Hobbs, 2023), while rising socioeconomic conditions escalate nutri­tional demands (Blekking et al., 2022; Djurfeldt, 2015) and propel calls for dietary diversity (Paulo et al., 2024; Usman & Haile, 2022). However, these advances are harshly undermined by the burden of foodborne diseases. An estimated 91 million peo­ple in Africa fall ill annually from food-related ill­nesses, generating over US$15 billion in medical costs and 137,000 deaths (Nigussie et al., 2025; World Health Organization [WHO] Africa, 2019), with downstream economic losses in tourism (Chen et al., 2021). Agrochemical residues, poor hygiene, and weak legislative enforcement in Africa’s largely informal food sectors drive this burden. Here, we synthesize health threats in informal food environments and call for an urgent agenda to protect public health across SSA. This viewpoint provides a snapshot of health-risk exposures across the three dominant value chains: fruits and vegetables, livestock, and aquatic foods. It emphasizes that while food availability, affordability and accessibility reduce food insecurity, they mask uncontrolled hazards. Addressing this demands research to characterize risks, quantify health and economic burdens, and develop context-specific interventions. Integrated science-policy action must follow to safeguard populations relying on these environments.