Browsing by Author "Karisa, H.C."
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Extension manual on production of quality catfish seed
Fregene, B.T.; Bolorunduro, P.; Yossa, R.; Karisa, H.C.; Olaniyi, A.A.; Ajose, I.; Rodrigue Yossa: 0000-0003-4792-0173; Harrison Charo Karisa: 0000-0001-5323-794XType: ManualThe TAAT Aquaculture compact has noted that fish farmers in Africa are confronted with many challenges in producing catfish. These include a lack of poor-quality fish seed, low skills of fish breeders in BMPs, high fry and ... -
Extension manual on quality low-cost fish feed formulation and production
Fregene, B.T.; Yossa, R.; Karisa, H.C.; Olaniyi, A.A.; Bolorunduro, P.; Rodrigue Yossa: 0000-0003-4792-0173; Harrison Charo Karisa: 0000-0001-5323-794XType: ManualThe TAAT Aquaculture compact has noted that fish farmers in Africa are confronted with many challenges in producing good quality feed. These include lack of access to quality feed ingredients, low skills of fish farmers ... -
Fertilizer and nutrient use in Egyptian Aquaculture.
Karisa, H.C.; Harrison Charo Karisa: 0000-0001-5323-794X (2019)Type: PresentationFertilizer and nutrient use in Egyptian Aquaculture: challenges and opportunities for aquaculture development in Egypt. -
Fisheries management based on gear selectivity of a tropical reservoir, Lake Nasser, Egypt
El-Far, A.M.; Walid, E.; El-Haweet, A.E.; Nasr-Allah, A.M.; Karisa, H.C.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794X (2020)Type: Journal ArticleLake Nasser, a large man-made tropical reservoir, located in the southern part of Egypt. The lakes’ fisheries have undergone steady decrease during the last 10 years obscuring its potential for sustainability. Fisheries ... -
Genetic parameters for black spot disease (diplopstomiasis) caused by Uvulifer sp. infection in Nile tilapia (Oreochromis niloticus L.)
Karisa, H.C.; Ali, S.E.; Marijani, E.A.; Ahmed Ibrahim, N.; Trinh, T.Q.; Chadag, V.; Benzie, J.; Harrison Charo Karisa: 0000-0001-5323-794X; Shimaa El Sayed Mohamed Ali: 0000-0002-0227-8124; Nabil Ahmed Ibrahim: 0000-0002-2007-7684; Vishnumurthy Mohan Chadag: 0000-0002-2574-284X; John Benzie: 0000-0001-9599-8683 (2021)Type: Journal ArticleBlack spot disease (diplopstomiasis), an external melanized host inflammatory response caused by a number of digenetic trematode parasites, results in slow growth, deformities and increased mortality among many freshwater ... -
IFAD_Advancing Climate Smart Aquaculture Technologies (ACliSAT)_STATUS OF THE AQUACULTURE SECTOR IN EGYPT. Baseline Study 2020
Nasr-Allah, A.M.; Ahmed Ibrahim, N.; Al-Kenawy, D.A.; Karisa, H.C.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Nabil Ahmed Ibrahim: 0000-0002-2007-7684; Diaa Abdel Reheem Al-Kenawy: 0000-0001-7737-6880; Harrison Charo Karisa: 0000-0001-5323-794XType: Donor ReportA baseline of Egyptian aquaculture practices and cultured fish species was conducted through the Advancing Climate Smart Aquaculture Technologies (ACliSAT) project. The purpose of the study was to collect sufficient ... -
IITA_Technologies for African Agricultural Transformation (TAAT)_Progress Report_September to December 2018
Karisa, H.C.; Harrison Charo Karisa: 0000-0001-5323-794XType: Donor ReportTechnologies for African Agricultural Transformation (TAAT) for the period covering Progress Report September to December 2018 -
Key risk factors, farming practices and economic losses associated with tilapia mortality in Egypt
Ali, S.E.; Jansen, M.D.; Chadag, V.; Delamare-Deboutteville, J.; Karisa, H.C.; Shimaa El Sayed Mohamed Ali: 0000-0002-0227-8124; Vishnumurthy Mohan Chadag: 0000-0002-2574-284X; Jerome Delamare-Deboutteville: 0000-0003-4169-2456; Harrison Charo Karisa: 0000-0001-5323-794X (2020)Type: Journal ArticleEgypt is the topmost aquaculture producer in Africa and the third largest tilapia producer globally. Nile tilapia in particular is the cornerstone of fish farming in Egypt. Recently, fish farms have experienced unusual ... -
Morphometric length-weight relationships of wild penaeid shrimps in Malindi-Ungwana Bay: Implications to aquaculture development in Kenya
Kaka, R.M.; Jung'a, J.O.; Badamana, M.; Ruwa, R.K.; Karisa, H.C.; Harrison Charo Karisa: 0000-0001-5323-794X (2019)Type: Journal ArticleThe present investigation describes the biology of penaeid shrimps and their fishery studies on morphometric length-weight relationships estimated during the two monsoon seasons from Malindi–Ungwana Bay in Kenya. A total ... -
Msingi East Africa Limited_Assessment of the conditions for the genetic improvement in East Africa: genetic performance, organisational capacity and policy_Final Report
Komugisha, B.; Karisa, H.C.; Benzie, J.; Phillips, M.J.; Basiita Rose Komugisha: 0000-0002-7257-0286; Harrison Charo Karisa: 0000-0001-5323-794X; John Benzie: 0000-0001-9599-8683; Michael John Phillips: 0000-0002-0282-0286Type: Donor ReportThis report provides results from an “Assessment of the Conditions for Genetic Improvement in East Africa: Genetic Performance, Organisational Capacity and Policy”, conducted by WorldFish for Msingi. The study focuses on ... -
Potential risk factors associated with tilapia mortality in Egypt
Ali, S.E.; Jensen, M.; Delamare-Deboutteville, J.; Karisa, H.C.; Chadag, V.; Shimaa El Sayed Mohamed Ali: 0000-0002-0227-8124; Jerome Delamare-Deboutteville: 0000-0003-4169-2456; Harrison Charo Karisa: 0000-0001-5323-794X; Vishnumurthy Mohan Chadag: 0000-0002-2574-284X (2019)Type: Conference PaperThe objective of this study was to identify potential risk factors associated with tilapia mortality in the largest producer governorates in order to conclude strategies for their control. -
Prospects of fish supply-demand and its implications for food and nutrition security in Egypt
Tran, N.; Long Chu, H.; Chan, C.; Peart, J.; Nasr-Allah, A.M.; Karisa, H.C.; Nhuong Tran: 0000-0002-1813-4571; Chin Yee Chan: 0000-0001-8615-2678; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794X (2022)Type: Journal ArticleAquaculture plays an increasingly important role in meeting the rising global demand for fish fuelled by economic and demographic growth. However, in many middle-income countries, aquaculture is constrained by rising labour ... -
SDC_Annual report: Youth Employment in Aswan Governorate; Extension of fisheries and aquaculture interventions_July 2017-June 2018
Nasr-Allah, A.M.; Karisa, H.C.; Habib Mohammed, O.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794XType: Donor ReportFisheries of Lake Nasser contributes to food security and creates job opportunities. The Youth Employment in Aswan Governorate project, extension of fisheries and aquaculture, is an SDC funded project, which started in ... -
SDC_Sustainable Transformation of Egypt’s Aquaculture Market System (STREAMS) Project: Final Narrative Operational Report_(1/12/2015-15/4/2019)
Nasr-Allah, A.M.; Karisa, H.C.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794XType: Donor ReportThe Sustainable Transformation of Egypt’s Aquaculture Market System (STREAMS) project is a 3-year project funded by the Swiss Agency for Development and Cooperation (SDC). The project commenced in December 2015. The project ... -
SDC_Youth Employment in Aswan Governorate; Extension of fisheries and aquaculture interventions_Semi-Annual Report_(1/7/2017 - 31/12/2017)
Nasr-Allah, A.M.; Karisa, H.C.; Habib Mohammed, O.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794XType: Donor ReportYouth Employment in Aswan Governorate project, extension of fisheries and aquaculture, started in July 2017. SDC expressed interest in funding the extension of this project upon the end of first phase of the project in ... -
Selective breeding trait preferences for farmed tilapia among low-income women and men consumers in Egypt; Implications for pro-poor and gender-responsive fish breeding programmes
Murphy, S.; Karisa, H.C.; Rajaratnam, S.; Cole, S.M.; McDougall, C.; Nasr-Allah, A.M.; Al-Kenawy, D.A.; Yehia Abou Zaid, M.; Louis van Brakel, M.; Banks, L.; Ahmed Ibrahim, N.; Seamus Murphy: 0000-0002-1792-0351; Harrison Charo Karisa: 0000-0001-5323-794X; Steven Michael Cole: 0000-0002-8947-0871; Cynthia McDougall: 0000-0002-5606-6813; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Diaa Abdel Reheem Al-Kenawy: 0000-0001-7737-6880; Nabil Ahmed Ibrahim: 0000-0002-2007-7684Type: Journal ArticleA number of studies have highlighted the promising growth of Egyptian tilapia aquaculture and the role of genetically improved strains in this development, such as the Abbassa Nile tilapia (Oreochromis niloticus, Linneaus, ... -
Spatial and Temporal Variation of Length-Weight Parameters and Condition Factors of Commercial Fish Species in Lake Nasser, Egypt
Walid, E.; El Far, A.; Karisa, H.C.; Nasr-Allah, A.M.; AbouelFadl, K.Y.; Harrison Charo Karisa: 0000-0001-5323-794X; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556 (2019)Type: Conference PaperLength and weight data of fish populations are necessary in stock assessment models and ecosystem modelling. Also, they could be used to spatially compare between different fish populations under different environmental ... -
Stock assessment of the Lake Nasser fishery: Policy brief for better resource use
El Far, A.; Walid, E.; El-Haweet, A.E.; Nasr-Allah, A.M.; Karisa, H.C.; Ahmed Mohamed Nasr-Allah: 0000-0001-6299-8556; Harrison Charo Karisa: 0000-0001-5323-794X (2018)Type: BriefThe decline in fish landings and the reduction in the marketing value of fish from Lake Nasser can be attributed to improper fishing practices and unsuitable fish handling. Such practices have a negative economic impact ... -
Sustainable aquaculture development in sub-Saharan Africa
Ragasa, C.; Karisa, H.C.; Rurangwa, E.; Tran, N.; Shikuku, K.M.; Harrison Charo Karisa: 0000-0001-5323-794X; Nhuong Tran: 0000-0002-1813-4571; Kelvin Mashisia Shikuku: 0000-0003-2290-074X (2022)Type: Journal ArticleSustainable aquaculture development in sub-Saharan Africa: Aquaculture must grow above the current rate of 11% per year to meet projected demand and reduce dependence on seafood imports. Government support and private ... -
Ten strategies for research quality in distance research during COVID-19 and future food system shocks
McDougall, C.; Akester, M.J.; Notere Boso, D.; Choudhury, A.; Hasiba, Z.; Karisa, H.C.; Pereira, M.; Price, C.R.; Ride, A.; Scott, J.; Shearer, D.; Sutcliffe, S.; Thilsted, S.H.; Cynthia McDougall: 0000-0002-5606-6813; Michael Joseph Akester: 0000-0001-6526-1613; Afrina Choudhury: 0000-0003-1734-6238; Harrison Charo Karisa: 0000-0001-5323-794X; Christopher Ross Price: 0000-0002-1353-0188; Jessica Scott: 0000-0002-5106-1335; David Shearer: 0000-0001-7334-4208; Shakuntala Haraksingh Thilsted: 0000-0002-4041-1651 (2020)Type: BriefFood systems are faced with increasingly difficult challenges from COVID-19 and future climate, socioeconomic, health and other shocks. To build forward better from these shocks, effective responses are needed. These ...



















