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1. Need for harmonized long-term multi-lake monitoring of African Great Lakes

Author

Plisnier, Pierre-Denis, Kayanda, Robert, MacIntyre, Sally, Obiero, Kevin, Okello, William, Vodacek, Anthony, Cocquyt, Christine, Abegaz, Hussein, Achieng, Alfred, Akonkwa, Balagizi, Albrecht, Christian, Balagizi, Charles, Barasa, James, Bashonga, Rafiki Abel, Bishobibiri, Alexis Bashonga, Bootsma, Harvey, Borges, Alberto V, Chavula, Geoffrey, Dadi, Tallent, De Keyzer, Els LR, Doran, Patrick J, Gabagambi, Nestory, Gatare, Robert, Gemmell, Andrew, Getahun, Abebe, Haambiya, Lloyd H, Higgins, Scott N, Hyangya, Beni L, Irvine, Ken, Isumbisho, Mwapu, Jonasse, Carlos, Katongo, Cyprian, Katsev, Sergei, Keyombe, James, Kimirei, Ismael, Kisekelwa, Tchalondawa, Kishe, Mary, Koding, Simon Otoung A, Kolding, Jeppe, Kraemer, Benjamin M, Limbu, Peter, Lomodei, Evans, Mahongo, Shigalla B, Malala, John, Mbabazi, Stella, Masilya, Pascal M, McCandlessz, Matt, Medard, Modesta, Ajode, Zephaniah Migeni, Mrosso, Hillary D, Mudakikwa, Eric R, Mulimbwa, N'sibula, Mushagalusa, Deo, Muvundja, Fabrice A, Nankabirwa, Angela, Nahimana, David, Ngatunga, Benjamin P, Ngochera, Maxon, Nicholson, Sharon, Nshombo, Muderhwa, Ntakimazi, Gaspard, Nyamweya, Chrispine, Nyeko, Joyceikwaput, Olago, Daniel, Olbamo, Tekle, O'Reilly, Catherine M, Pasche, Natacha, Phiri, Harris, Raasakka, Nina, Salyani, Anham, Sibomana, Claver, Silsbe, Greg M, Smith, Stephanie, Sterner, Robert W, Thiery, Wim, Tuyisenge, Janviere, Van der Knaap, Martin, Van Steenberge, Maarten, van Zwieten, Paul AM, Verheyen, Erik, Wakjira, Mulugeta, Walakira, John, Wembo, Oscar Ndeo, and Lawrence, Theodore

Subjects
Fisheries, Limnology, Pollution, Biodiversity, Climate change, Erosion, Physical Geography and Environmental Geoscience, Environmental Science and Management, Environmental Engineering, Ecology, Environmental management
Published
2023

2. A Review of the Comparative Research Method

Author

Ndebele-Murisa, Mzime, primary, Kimirei, Ismael Aaron, additional, Mubaya, Chipo Plaxedes, additional, Chavula, Geoffrey, additional, Mwedzi, Tongayi, additional, Mutimukuru-Maravanyika, Tendayi, additional, and Semba, Masumbuko, additional

Published
2021
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5. Future success and ways forward for scientific approaches on the African Great Lakes

Author

Lawrence, Ted J., primary, Achieng, Alfred O., additional, Chavula, Geoffrey, additional, Haninga Haambiya, Lloyd, additional, Iteba, Jacob, additional, Kayanda, Robert, additional, Kaunda, Emmanuel, additional, Ajode, Migeni Z., additional, Muvundja, Fabrice A., additional, Nakiyende, Herbert, additional, Nyamweya, Chrisphine, additional, Obiero, Kevin, additional, Plisnier, Pierre Denis, additional, Phiri, Harris, additional, Sibomana, Claver, additional, and Smith, Stephanie, additional

Published
2023
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6. Need for harmonized long-term multi-lake monitoring of African Great Lakes

Author

Plisnier, Pierre Denis, Kayanda, Robert, MacIntyre, Sally, Obiero, Kevin, Okello, William, Vodacek, Anthony, Cocquyt, Christine, Abegaz, Hussein, Achieng, Alfred, Akonkwa, Balagizi, Albrecht, Christian, Balagizi, Charles, Barasa, James, Abel Bashonga, Rafiki, Bashonga Bishobibiri, Alexis, Bootsma, Harvey, Borges, Alberto V., Chavula, Geoffrey, Dadi, Tallent, De Keyzer, Els L.R., Doran, Patrick J., Gabagambi, Nestory, Gatare, Robert, Gemmell, Andrew, Getahun, Abebe, Haambiya, Lloyd H., Higgins, Scott N., Hyangya, Béni L., Irvine, Ken, Isumbisho, Mwapu, Jonasse, Carlos, Katongo, Cyprian, Katsev, Sergei, Keyombe, James, Kimirei, Ismael, Kisekelwa, Tchalondawa, Kishe, Mary, Otoung A. Koding, Simon, Kolding, Jeppe, Kraemer, Benjamin M., Limbu, Peter, Lomodei, Evans, Mahongo, Shigalla B., Malala, John, Mbabazi, Stella, Masilya, Pascal M., McCandless, Matt, Medard, Modesta, Migeni Ajode, Zephaniah, Mrosso, Hillary D., Mudakikwa, Eric R., Mulimbwa, Nsibula, Mushagalusa, Déo, Muvundja, Fabrice A., Nankabirwa, Angela, Nahimana, David, Ngatunga, Benjamin P., Ngochera, Maxon, Nicholson, Sharon, Nshombo, Muderhwa, Ntakimazi, Gaspard, Nyamweya, Chrispine, Ikwaput Nyeko, Joyce, Olago, Daniel, Olbamo, Tekle, O'Reilly, Catherine M., Pasche, Natacha, Phiri, Harris, Raasakka, Nina, Salyani, Anham, Sibomana, Claver, Silsbe, Greg M., Smith, Stephanie, Sterner, Robert W., Thiery, Wim, Tuyisenge, Janviere, Van der Knaap, Martin, Van Steenberge, Maarten, van Zwieten, Paul A.M., Verheyen, Erik, Wakjira, Mulugeta, Walakira, John, Ndeo Wembo, Oscar, Lawrence, Theodore, Plisnier, Pierre Denis, Kayanda, Robert, MacIntyre, Sally, Obiero, Kevin, Okello, William, Vodacek, Anthony, Cocquyt, Christine, Abegaz, Hussein, Achieng, Alfred, Akonkwa, Balagizi, Albrecht, Christian, Balagizi, Charles, Barasa, James, Abel Bashonga, Rafiki, Bashonga Bishobibiri, Alexis, Bootsma, Harvey, Borges, Alberto V., Chavula, Geoffrey, Dadi, Tallent, De Keyzer, Els L.R., Doran, Patrick J., Gabagambi, Nestory, Gatare, Robert, Gemmell, Andrew, Getahun, Abebe, Haambiya, Lloyd H., Higgins, Scott N., Hyangya, Béni L., Irvine, Ken, Isumbisho, Mwapu, Jonasse, Carlos, Katongo, Cyprian, Katsev, Sergei, Keyombe, James, Kimirei, Ismael, Kisekelwa, Tchalondawa, Kishe, Mary, Otoung A. Koding, Simon, Kolding, Jeppe, Kraemer, Benjamin M., Limbu, Peter, Lomodei, Evans, Mahongo, Shigalla B., Malala, John, Mbabazi, Stella, Masilya, Pascal M., McCandless, Matt, Medard, Modesta, Migeni Ajode, Zephaniah, Mrosso, Hillary D., Mudakikwa, Eric R., Mulimbwa, Nsibula, Mushagalusa, Déo, Muvundja, Fabrice A., Nankabirwa, Angela, Nahimana, David, Ngatunga, Benjamin P., Ngochera, Maxon, Nicholson, Sharon, Nshombo, Muderhwa, Ntakimazi, Gaspard, Nyamweya, Chrispine, Ikwaput Nyeko, Joyce, Olago, Daniel, Olbamo, Tekle, O'Reilly, Catherine M., Pasche, Natacha, Phiri, Harris, Raasakka, Nina, Salyani, Anham, Sibomana, Claver, Silsbe, Greg M., Smith, Stephanie, Sterner, Robert W., Thiery, Wim, Tuyisenge, Janviere, Van der Knaap, Martin, Van Steenberge, Maarten, van Zwieten, Paul A.M., Verheyen, Erik, Wakjira, Mulugeta, Walakira, John, Ndeo Wembo, Oscar, and Lawrence, Theodore

Abstract

To ensure the long-term sustainable use of African Great Lakes (AGL), and to better understand the functioning of these ecosystems, authorities, managers and scientists need regularly collected scientific data and information of key environmental indicators over multi-years to make informed decisions. Monitoring is regularly conducted at some sites across AGL; while at others sites, it is rare or conducted irregularly in response to sporadic funding or short-term projects/studies. Managers and scientists working on the AGL thus often lack critical long-term data to evaluate and gauge ongoing changes. Hence, we propose a multi-lake approach to harmonize data collection modalities for better understanding of regional and global environmental impacts on AGL. Climate variability has had strong impacts on all AGL in the recent past. Although these lakes have specific characteristics, their limnological cycles show many similarities. Because different anthropogenic pressures take place at the different AGL, harmonized multi-lake monitoring will provide comparable data to address the main drivers of concern (climate versus regional anthropogenic impact). To realize harmonized long-term multi-lake monitoring, the approach will need: (1) support of a wide community of researchers and managers; (2) political goodwill towards a common goal for such monitoring; and (3) sufficient capacity (e.g., institutional, financial, human and logistic resources) for its implementation. This paper presents an assessment of the state of monitoring the AGL and possible approaches to realize a long-term, multi-lake harmonized monitoring strategy. Key parameters are proposed. The support of national and regional authorities is necessary as each AGL crosses international boundaries.

Published
2023

9. Need for harmonized long-term multi-lake monitoring of African Great Lakes

Author

Plisnier, Pierre-Denis, primary, Kayanda, Robert, additional, MacIntyre, Sally, additional, Obiero, Kevin, additional, Okello, William, additional, Vodacek, Anthony, additional, Cocquyt, Christine, additional, Abegaz, Hussein, additional, Achieng, Alfred, additional, Akonkwa, Balagizi, additional, Albrecht, Christian, additional, Balagizi, Charles, additional, Barasa, James, additional, Abel Bashonga, Rafiki, additional, Bashonga Bishobibiri, Alexis, additional, Bootsma, Harvey, additional, Borges, Alberto V., additional, Chavula, Geoffrey, additional, Dadi, Tallent, additional, De Keyzer, Els L.R., additional, Doran, Patrick J., additional, Gabagambi, Nestory, additional, Gatare, Robert, additional, Gemmell, Andrew, additional, Getahun, Abebe, additional, Haambiya, Lloyd H., additional, Higgins, Scott N., additional, Hyangya, Béni L., additional, Irvine, Ken, additional, Isumbisho, Mwapu, additional, Jonasse, Carlos, additional, Katongo, Cyprian, additional, Katsev, Sergei, additional, Keyombe, James, additional, Kimirei, Ismael, additional, Kisekelwa, Tchalondawa, additional, Kishe, Mary, additional, Otoung A. Koding, Simon, additional, Kolding, Jeppe, additional, Kraemer, Benjamin M., additional, Limbu, Peter, additional, Lomodei, Evans, additional, Mahongo, Shigalla B., additional, Malala, John, additional, Mbabazi, Stella, additional, Masilya, Pascal M., additional, McCandless, Matt, additional, Medard, Modesta, additional, Migeni Ajode, Zephaniah, additional, Mrosso, Hillary D., additional, Mudakikwa, Eric R., additional, Mulimbwa, N'sibula, additional, Mushagalusa, Déo, additional, Muvundja, Fabrice A., additional, Nankabirwa, Angela, additional, Nahimana, David, additional, Ngatunga, Benjamin P., additional, Ngochera, Maxon, additional, Nicholson, Sharon, additional, Nshombo, Muderhwa, additional, Ntakimazi, Gaspard, additional, Nyamweya, Chrispine, additional, Ikwaput Nyeko, Joyce, additional, Olago, Daniel, additional, Olbamo, Tekle, additional, O'Reilly, Catherine M., additional, Pasche, Natacha, additional, Phiri, Harris, additional, Raasakka, Nina, additional, Salyani, Anham, additional, Sibomana, Claver, additional, Silsbe, Greg M., additional, Smith, Stephanie, additional, Sterner, Robert W., additional, Thiery, Wim, additional, Tuyisenge, Janviere, additional, Van der Knaap, Martin, additional, Van Steenberge, Maarten, additional, van Zwieten, Paul A.M., additional, Verheyen, Erik, additional, Wakjira, Mulugeta, additional, Walakira, John, additional, Ndeo Wembo, Oscar, additional, and Lawrence, Theodore, additional

Published
2022
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12. Paleo-Geohydrology of Lake Chilwa, Malawi is the Source of Localised Groundwater Salinity and Rural Water Supply Challenges

Author

Rivett, Michael O., primary, Symon, Shona, additional, Jacobs, Lucas, additional, Banda, Limbikani C., additional, Wanangwa, Gift J., additional, Robertson, Donald J. C., additional, Hassan, Ibrahim, additional, Miller, Alexandra V. M., additional, Chavula, Geoffrey M. S., additional, Songola, Chrispine E., additional, Mbemba, Chikondi, additional, Addison, Marc J., additional, Kalonga, Patron, additional, Kachiwanda, Yobu, additional, and Kalin, Robert M., additional

Published
2020
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14. Water–Isotope Capacity Building and Demonstration in a Developing World Context: Isotopic Baseline and Conceptualization of a Lake Malawi Catchment

Author

Banda, Limbikani C., primary, Rivett, Michael O., additional, Kalin, Robert M., additional, Zavison, Anold S.K., additional, Phiri, Peaches, additional, Kelly, Laura, additional, Chavula, Geoffrey, additional, Kapachika, Charles C., additional, Nkhata, Macpherson, additional, Kamtukule, Sydney, additional, Mleta, Prince, additional, and Nhlema, Muthi, additional

Published
2019
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15. Monitoring Changes in the Cultivation of Pigeonpea and Groundnut in Malawi Using Time Series Satellite Imagery for Sustainable Food Systems

Author

Gumma, Murali Krishna, primary, Tsusaka, Takuji W., additional, Mohammed, Irshad, additional, Chavula, Geoffrey, additional, Ganga Rao, N. V. P. R., additional, Okori, Patrick, additional, Ojiewo, Christopher O, additional, Varshney, Rajeev, additional, Siambi, Moses, additional, and Whitbread, Anthony, additional

Published
2019
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16. Lake Malawi/Niassa/Nyasa basin: Status, challenges, and research needs.

Author

Chavula, Geoffrey M.S., M'balaka, Mwamad S., Gondwe, Edith, Ngochera, Maxon, Halafo, José S., Shechonge, Asilatu H, Gabagambi, Nestory P., Mbonde, Athanasio S., Banda, Dorothy, Muyumbana, Namakau, Lawrence, Ted J., Ajode, Migeni Z., Smith, Stephanie, Jonasse, Carlos, Kanyerere, Geoffrey Z., and Ngatunga, Benjamin P.

Abstract

Lake Malawi/Niassa/Nyasa (LMNN) is one of the most important and third-largest African Great Lakes. It has the largest number of freshwater fish species in the world, most of which are endemic. Current estimates put the number of fish species in the range of 800–1000. The riparian countries of Malawi, Mozambique and Tanzania enjoy enormous benefits that accrue from the ecosystem services that the lake provides. However, LMNN is experiencing severe adverse impacts resulting from anthropogenic and climatic stressors, leading to increased sediment and nutrient loading. This observation motivated this study to identify existing research gaps to enhance the lake's sustainable management. Specifically, the assessment focused on three key issues identified and prioritised by the LMNN Basin Fisheries and Aquaculture Network (LMNNBFAN), namely: fishery health, invasive species, and climate change. Data collection involved stakeholder consultations, field surveys, and desk reviews. Recommendations from study findings, that would create a conducive environment for the sustainable management of the lake, have been grouped into four main categories: research needs, infrastructure development, human capacity building and funding. [ABSTRACT FROM AUTHOR]

Published
2023
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18. Decadal trends and common dynamics of the bio-optical and thermal characteristics of the African Great Lakes

Author

Loiselle, Steven, Cózar, Andrés, Adgo, Enyew, Ballatore, Thomas, Chavula, Geoffrey, Descy, Jean-Pierre, Harper, David M., Kansiime, Frank, Kimirei, Ismael, Langenberg, Victor, Ma, Ronghua, Sarmento, Hugo, and Odada, Eric

Subjects
Computer and Information Sciences, Climate, Science, Ecosystem, Lakes, Marine and Aquatic Sciences, Climate change, Freshwater ecosystem, Ecosystems, Latitude, Ecosystem services, Global Change Ecology, Geoinformatics, Limnology, Phytoplankton, Freshwater Ecology, Remote Sensing Imagery, Multidisciplinary, Ecology, Geography, Intertropical Convergence Zone, Ecology and Environmental Sciences, Biology and Life Sciences, Plankton, Physical Limnology, Oceanography, Earth Sciences, Environmental science, Medicine, Research Article
Abstract

The Great Lakes of East Africa are among the world's most important freshwater ecosystems. Despite their importance in providing vital resources and ecosystem services, the impact of regional and global environmental drivers on this lacustrine system remains only partially understood. We make a systematic comparison of the dynamics of the bio-optical and thermal properties of thirteen of the largest African lakes between 2002 and 2011. Lake surface temperatures had a positive trend in all Great Lakes outside the latitude of 0° to 8° south, while the dynamics of those lakes within this latitude range were highly sensitive to global inter-annual climate drivers (i.e. El Niño Southern Oscillation). Lake surface temperature dynamics in nearly all lakes were found to be sensitive to the latitudinal position of the Inter Tropical Convergence Zone. Phytoplankton dynamics varied considerably between lakes, with increasing and decreasing trends. Intra-lake differences in both surface temperature and phytoplankton dynamics occurred for many of the larger lakes. This inter-comparison of bio-optical and thermal dynamics provides new insights into the response of these ecosystems to global and regional drivers.

Published
2014
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